AV-27F703
AV-27F713
AV-27F803
SERVICE MANUAL
COLOR TELEVISION
BASIC CHASSIS
/S
AV-27F703
GJ
(No.A111)
/S
AV-27F713
AV-27F803/S
[RM-C325G]
RM-C326G
AV-27F803
RM-C326
AV-27F703
AV-27F713
CONTENTS
! SPECIFICATIONS ･････････････････････････････････････････････････････････････ 2
!
!
･･･････････････････････････････････････････････････････
SAFETY PRECAUTIONS
3
FEATURES･･･････････････････････････････････････････････････････････････････ 4
! HOW TO IDENTIFY MODELS ････････････････････････････････････････････････････ 4
･･･････････････････････････････････････････････････････
!
MAIN DIFFERENCE LIST
5
! FUNCTIONS･･････････････････････････････････････････････････････････････････ 6
! SPECIFIC SERVICE INSTRUCTIONS ･････････････････････････････････････････････ 8
!
SERVICE ADJUSTMENTS ･････････････････････････････････････････････････････ 12
! PARTS LIST ･････････････････････････････････････････････････････････････････ 33
★ OPERATING INSTRUCTIONS
★ STANDARD CIRCUIT DIAGRAM ････････････････････････････････････････････････ 2-1
1
No.52005
Jun. 2002
COPYRIGHT © 2002 VICTOR COMPANY OF JAPAN, LTD.
AV-27F703
AV-27F713
AV-27F803
SAFETY PRECAUTIONS
1. The design of this product c ontains spec ial hardware, many
circuits and components s pecially for safety purposes. For
continued protection, no changes should be made to the
original des ign unless authorized in writing by the manufacturer.
Replacement parts must be identic al to thos e used in the
original circuits. Servic e should be performed by qualified
pers onnel only.
10. Isolation Check
(Safety for Electrical Shock Hazard)
After re-assembling the product, always perform an isolation
check on the exposed metal parts of the c abinet (antenna
terminals, video/audio input and output terminals, Control
knobs, metal cabinet, screwheads, earphone jack, control
shafts, etc.) to be sure the product is safe to operate without
danger of electrical shoc k.
2. Alterations of the design or circuitry of the products s hould not
be made. Any design alterations or additions will void the
manufacturer's warranty and will further relieve the
manufacturer of respons ibility for pers onal injury or property
damage resulting therefrom.
(1) Dielectric Strength Test
The is olation between the AC primary circuit and all metal parts
exposed to the us er, particularly any exposed metal part having
a return path to the chassis should withstand a voltage of
1100V AC (r.m.s.) for a period of one sec ond.
(. . . . Withstand a voltage of 1100V AC (r.m.s.) to an appliance
rated up to 120V, and 3000V AC (r.m. s.) to an applianc e rated
200V or more, for a period of one second.)
3. Many electrical and mechanic al parts in the products have
special safety-related c haracteris tics. These charac teristics are
often not evident from visual inspection nor can the protection
afforded by them necess arily be obtained by using
replac ement components rated for higher voltage, wattage, etc.
Replacement parts whic h have thes e special s afety
characteristics are identified in the parts list of Service manual.
Electrical components having such features are identified
by shading on the schematics and by (!) on the parts list
in Service manual. The use of a substitute replac ement which
does not have the same safety characteristics as the
recommended replac ement part shown in the parts list of
Service manual may c aus e shock, fire, or other haz ards.
4. Use isolation tr ansformer when hot chassis.
This method of test requires a test equipment not generally
found in the service trade.
(2) Leakage Current Check
Plug the AC line c ord directly into the AC outlet (do not use a
line is olation transformer during this check.). Using a "Leakage
Current Tester", measure the leakage current from each
exposed metal part of the cabinet, partic ularly any exposed
metal part having a return path to the chassis, to a known good
earth ground (water pipe, etc.). Any leakage current must not
exceed 0. 5mA AC (r.m. s.).
The chassis and any sub-chassis contained in some products
are c onnected to one side of the AC power line. An isolation
transformer of adequate capacity should be inserted between
the product and the AC power supply point while performing
any service on some products when the HOT chassis is
exposed.
However, in tropical area, this must not exc eed 0.2mA AC
(r.m.s.).
" Alternate Check Method
Plug the AC line c ord directly into the AC outlet (do not use a
line isolation transformer during this check.). Use an AC
voltmeter having 1000 ohms per volt or more sensitivity in the
5. Don't short between the LIVE side ground and ISOLATED
(NEUTRAL) side ground or EARTH side ground when
repairing.
Ω
following manner. Connec t a 1500 10W resistor paralleled
by a 0.15μF AC-type capacitor between an exposed metal
part and a known good earth ground (water pipe, etc.).
Measure the AC voltage across the resistor with the AC
voltmeter. Move the resistor connection to each exposed metal
part, particularly any exposed metalpart having a return path to
the chassis , and measure the AC voltage across the resistor.
Now, revers e the plug in the AC outlet and repeat each
measurement. Any voltage measured must not exceed 0.75V
AC (r.m.s.). This corresponds to 0.5mA AC (r.m.s.).
Some model's power c ircuit is partly different in the GND. The
"
differenc e of the GND is shown by the LIVE : ( ) side GND,
the ISOLATED(NEUTRAL) : (#) side GND and EARTH : ($)
side GND. Don't short between the LIVE side GND and
ISOLATED(NEUTRAL) side GND or EARTH side GND and
never measure with a measuring apparatus (oscilloscope etc.)
the LIVE side GND and ISOLATED(NEUTRAL) side GND or
EARTH side GND at the same time.
However, in tropic al area, this must not exceed 0.3V AC
(r.m.s.). This corresponds to 0.2mA AC (r.m.s.).
If above note will not be kept, a fuse or any parts will be broken.
6. If any repair has been made to the chassis, it is recommended
that the B1 setting should be chec ked or adjusted (See
ADJUSTMENT OF B1 POWER SUPPLY).
ACVOLTMETER
(HAVING 1000Ω/V,
7. The high voltage applied to the picture tube must conform with
that specified in Service manual. Excessive high voltage can
cause an increase in X-Ray emission, arcing and possible
component damage, therefore operation under excess ive high
voltage c onditions should be kept to a minimum, or should be
prevented. If severe arc ing occurs, remove the AC power
immediately and determine the cause by visual inspection
(incorrect installation, crac ked or melted high voltage harness,
poor s oldering, etc. ). T o maintain the proper minimum level of
soft X-Ray emission, components in the high voltage circuitry
including the picture tube must be the exact replacements or
alternatives approved by the manufacturer of the complete
product.
OR MORE SENSITIVITY)
GOOD
EARTH
GR OUND
0.15μF AC-TYPE
PLACE THIS PROBE
ON EACH EXPO SED
MET AL PART
1500 10W
Ω
11. High voltage hold down circuit check.
After repair of the high voltage hold down circuit, this circuit
shall be c hec ked to operate correctly.
See item "How to check the high voltage hold down
cir cuit".
8. Do not c hec k high voltage by drawing an arc. Us e a high
voltage meter or a high voltage probe with a VTVM. Discharge
the picture tube before attempting meter connection, by
connec ting a clip lead to the ground frame and connecting the
other end of the lead through a 10kΩ 2W resistor to the anode
This mark shows afast
operating fuse, the
letters indicated below
show the rating.
button.
9. When service is required, observe the original lead dress.
Extra precaution should be given to assure correct lead dres s
in the high voltage c ircuit area. W here a short circuit has
occurred, those c omponents that indic ate evidence of
overheating should be replaced. Always use the
manufacturer's replacement components.
A
V
No. 52005
3
AV-27F703
AV-27F713
AV-27F803
FEATURES
" New chas sis design enables use of a single board with simplified
" Built-in V-CHIP system.
" Clos ed-caption broadcasts can be viewed.
" Built-in MTS sys tem, BBE / HYPER-SURROUND system.
circuitry.
" Users can make fun to connect the DVD player with the component
video signal input terminal.
"
S-VIDEO input terminal for taking best advantage of Super VHS.
" Provided with miniature tuner (TV/CATV).
" Multifunctional remote control permits picture adjustment.
"
Digital Comb filter Improved picture quality.
"
Built-in EZ SURF system.(AV-27F803)
" Adoption of the CHANNEL GUARD function prevents the specific
By pushing the EZ SURF key, Back Program Information can be
displayed in written from program Information uses a CALL
channels from being selected, unless the “ID number” is key in.
2
"
I C bus control utilizes single chip ICs.
LETTER (broadcasting station ID), a Network name and
a
Program name of XDS data, and collect’s tuning of the tuner for
PIP one by one.
"
"
Adoption of the VIDEO STATUS / THEATER PRO. function.
Adoption of the ON/OFF TIMER and SLEEP TIMER function.
HOW TO IDENTIFY MODELS
• How to recognize from the appearance of the model concerned is written below. Please distinguish from several contents
currently printed on the rating label.
[RATING LABEL]
Indicated
AV-27F703
AV-27F713
AV-27F803
Distinguish
Please distinguish from several contents
INDICATED “S”
currently printed on the Rating Label.
4
No.52005
AV-27F703
AV-27F713
AV-27F803
MAIN DIFFERENCE LIST
!
Model name
AV-27F703/S
AV-27F713/S
AV-27F803/S
Parts Name
MAIN PWB
SGJ -1004A-M2
SGJ -1003A-M2
SGJ -1002A-M2
SGJ -4001A-M2
SGJ -5001A-M2
SGJ 0Y001A-M2
LC10878-003B-A
CM48006-008-C
LC20628-001C-A
LC31237-001A-A
LC31238-004A-A
LC20217-004B-A
LC20899-005A-A
PIP PWB
×
×
AV SEL PWB
SGJ -5002A-M2
←
×
×
3D Y/C SEP MODULE PWB
FRONT CABI. ASSY
JVC MARK
!
LC10878-003B-A
CM48006-008-C
LC20628-001C-A
LC31237-001A-A
LC31238-004A-A
LC20217-004B-A
LC20899-004A-A
LC10878-004A-A
CM48006-009-C
LC20628-002A-A
LC31237-002A-A
LC31238-005A-A
LC20217-006A-A
LC20899-004A-A
!
!
DOOR
KNOB (POWER)
OPERATION SHEET
CONTROL KNOB
TERMINAL BOARD
!
!
REMOCON UNIT
INPUT TERMINAL
RM-C326G-1A
RM-C326-1A
RM-C325G-1A
～
INPUT1 INPUT3
～
INPUT1 INPUT4
←
No.52005
5
AV-27F703
AV-27F713
AV-27F803
FUNCTIONS
■
FRONT PANEL CONTROL
2
7
9
1
5
8
3
6
4
1INPUT3 VIDEO terminal
6VOLUME -/+ buttons
2
7
INPUT3 AUDIO L / MONO terminal
SENSOR REMOTE CONTROL
3INPUT3 AUDIO R terminal
8ON TIMER LED
4
5
▼
9
MENU button (
)
POWER button
CHANNEL -/+ buttons
OPERATE
/
buttons (use MENU screen)
■
REAR TERMINAL
[
[
AV-27F703 /S, AV-27F713/S ]
AV-27F803 /S ]
1
2
1
2
3
3
4
4
5
5
6
AV-27F703/S, AV-27F713 /S
]
AV-27F803/S
]
[
[
1
2
3
INPUT
terminals
1
(S-VIDEO, V, L/MONO, R)
1
INPUT 1 (S-VIDEO, V, L/MONO, R) terminals
2INPUT 2 (V, L / MONO, R) terminals
INPUT 2 (V, L / MONO, R) terminals
/ COMPONENT VIDEO(Y, PB, PR) terminals
B
R
/ COMPONENT VIDEO(Y, P , P ) terminals
INPUT 4 (L, R) terminals
/ COMPONENT VIDEO(Y, PB, PR) terminals
3
4
AUDIO OUT(L, R) terminals
Ⅲ
AV COMPULINK
4AUDIO OUT(L, R) terminals
5 VHF / UHF terminal
5
6
Ⅲ
AV COMPULINK
VHF / UHF terminal
6
No.52005
AV-27F703
AV-27F713
AV-27F803
■REMOTE CONTROL UNIT
1TV / CATV switch
2VCR / DVD switch
316 : 9 MODE Key
4POWER Key
RM-C326G : AV-27F703/S
RM-C326 : AV-27F713/S
1
2
3
4
TV
VIDEO1
0
VIDEO2
VIDEO3
5INPUT Key (
6DISPLAY Key
)
15
30 ……165
180
7SLEEP TIMER Key (
)
8HYPER SUR. Key ( Can be changed ON / OFF )
5
9VIDEO STATUS Key
6
8
ATHEATER PRO key
15
7
9
BBBE key ( Can be changed ON / OFF )
CMUTING Key
17
16
18
19
10
12
DFUNCTION Key ( CH -/+ / VOL -/+ )
11
13
The FUNCTION keys operate CHANNEL and VOLUME normally.
These keys are also used to navigate MENU system.
EMENU Key
FNUMBERS Key
G100+ Key
14
20
21
HRETURN+ Key
ILIGHT Key
JV-CHIP Key
KEXIT Key
LVCR / DVD Keys
[RM-C325G : AV-27F803/S]
1TV / CATV switch
2VCR / DVD switch
316 : 9 MODE Key
4POWER Key
1
2
3
4
23
6
TV
VIDEO1
0
VIDEO2
VIDEO3
VIDEO4
5INPUT Key(
)
22
16
5
7
6DISPLAY key
15
30 ……165
180
15
17
7SLEEP TIMER Key (
8HYPER SUR. Key ( Can be changed ON / OFF )
)
8
9VIDEO STATUS Key
9
ATHEATER PRO key
18
19
10
12
BBBE key( Can be changed ON / OFF )
CMUTING Key
11
13
DFUNCTION Key ( CH -/+ / VOL -/+ )
14
20
21
The FUNCTION keys operate CHANNEL and VOLUME normally.
These keys are also used to navigate MENU system.
EMENU Key
FNUMBERS Key
G100+ Key
HRETURN+ Key
ILIGHT Key
JV-CHIP Key
KEXIT / PIP OFF Key
LVCR / DVD Keys
MPIP Key
NEZ SURF Key (Back Program Information can be displayed.)
No.52005
7
AV-27F703
AV-27F713
AV-27F803
SPECIFIC SERVICE INSTRUCTIONS
DISASSEMBLY PROCEDURE
REMOVING THE REAR COVER
CHECKING THE CHASSIS
1. Disc onnect the power plug from wall outlet.
To check the PW Board from back side.
1. Pull out the chassis (refer to REMOVING THE CHASSIS).
2. Erect the chas sis vertically so that you c an easily check the back
side of the PW Board.
2. As s hown in the Fig.1, remove the 12 screws marked !.
3. Withdraw the rear c over backward.
REMOVING THE TERMINAL BOARD
" After removing the rear cover.
[CAUTION]
"
"
"
When erecting the chassis, be careful so that there will be no
contacting with other PW Board.
1. As s hown in Fig.1, remove the screws marked ".
2.Withdrawthe terminal board toward you.
Before turning on power, make s ure that the wire connec tor is
properly connec ted.
When conducting a check with power supplied, be sure to
confirm that the CRT EARTH WIRE (BRAIDED ASS’Y) is
connected to the CRT SOCKET PW board.
REMOVING THE CHASSIS
" After removing the rear cover / terminal board.
1. Slightly raise the both sides of chassis by hand and remove the
claws under the both side of the chassis from the front cabinet.
2
2. Withdraw the chass is backward.
WIRE CLAMPING AND CABLE TYING
1. Be sure to clamp the wire.
(If necess ary, remove the wire clamp, c onnectors etc.)
2. Never remove the cable tie used for tying the wires together.
Should it be inadvertently removed, be sure to tie the wires with a
new cable tie.
REMOVING THE SPEAKER
"After removing the rear cover.
1. As shown in Fig. 1, removing the 4 screws marked #, then
remove the speaker.
2. Follow the s ame steps when removing the other hand speak er.
NOTE : When removing the screws marked # of the speaker,
4
remove the lower side screw first, and then remove the
upper one.
REMOVING THE LED & POWER SW PWB
"
After removing the rear cover & terminal board.
1. Remove the 2 screws marked $ as s hown in Fig. 1.
2.Withdraw the LED & POWER SW PWB toward you.
* If necessary, remove the wire clamp, connector etc.
REMOVING THE FRONT CONTROL PWB
" After removing the rear cover & terminal board.
1. Remove the 2 screws marked % as s hown in Fig. 1.
2.Withdrawthe FRONT CONTROL PWB toward you.
* If necessary, remove the wire clamp, connector etc.
8
No.52005
AV-27F703
AV-27F713
AV-27F803
/S
This exploded view describes about the AV-27F803 .
You c an use the exploded view for disassembling the
/S
/S
AV-27F703 AV-27F713 in the s ame step as for
this one.
FRONT CABINET
SPEAKER
C
CRT SOCKET
PWB
(×4)
FRONT CONTROL
PWB
PIP PWB
AV-27F803/S
CHASSIS
MAIN PWB
CLAW
E
(×2)
LED & POWER SW
PWB
D
(×2)
POWER CORD
3D Y/C SEP MODULE
/S
AV-27F803
CLAW
TERMINAL
BOARD
AV SELECTOR
PWB
REAR COVER
B
AV-27F803/S
(×6)
(×4) AV-27F703/S
/S
AV-27F713
A
(×12)
Fig.1
No.52005
9
AV-27F703
AV-27F713
AV-27F803
MEMORY IC REPLACEMENT
1. Memory IC
This TV uses memory IC.
This memory IC stores data for proper operation of the video and deflection circuits.
When replacing the memory IC, be sure to use an IC containing this (initial value) data.
2. Memory IC replacement procedure
(1) Power off
Switch off the power and disc onnect the power cord from the wall
outlet.
SERVICE MENU
SERVICE MENU
AV-27F803/S
(2) Replace the memory IC
6.3D Y/C(DYC)
1.V/C(S)
3.SOUND(A)
5.PIP(PIP)
2.DEF(D)
Be sure to use a memory IC written with the initial setting data.
4.OTHERS(F)
6.3L Y/C(LYC)
8. HIGH LIGHT
10.VCO
7. LOW LI GHT
9.RF AFC
(3) Power on
Connect the power cord to the wall outlet and switch on the power.
2
V erified
11.I C BUS
12.SYSTEM(SYS)
SELECT BY
OPERATEBY
(4) Confir m the system constant value
EXITBY
EXIT
"
"
12.SYSTEM (SYS) do not adjust normally.
Fig.1
12.SYSTEM(SYS)
The adjustment should not be done without signal.
!
How to enter the SERVICE MENU.
1) Press the SLEEP TIMER key and set SLEEP TIMER for 「0 min」.
2) Before disappear the display of SLEEP TIMER settings,
simultaneously press the DISPLAY key and VIDEO STATUS key of
the remote controlunit.
SET TING ITEM
3) The SERVICE MENU screen will be displayed as shown Fig.1.
!
How to enter the 12. SYSTEM(SYS).
1) While the SERVICE MENU is displayed, select the
▼ ▲
SYS01 VIDEO IN
***
12.SYSTEM(SYS) item with FUNCTION (
FUNCTION ( ) keys is pressed, the screen will be displayed as
shown in Fig.2.
/
) keys, and the
/
SET TING No
SET TING VALUE
Fig.2
5) Refer to the SYSTEM ( SYSTEM CONSTANT) TABLE 1 and check
the setting items. If the value is different, select the setting item with
the FUNCTION ( ▼ / ▲) keys and adjust the setting with the
KEY ASSIGNMENT OF REMOTE CONTROL UNIT
(RM-C325G)
FUNCTION(
/
) keys. (The letters of the s elected item are
displayed in yellow.)
6) When adjustment has completed, the values store into memory IC
automatically
POWER
7) Press the EXIT key to return the SERVICE MENU screen.
8) Then press the EXIT key again to return the normal screen.
DISPLAY
(5) Receive the channel setting
SLEEP
TIMER
NUMBER
Refer to the OPERATING INSTRUCTIONS (USER'S GUIDE) and
set the receive channels (Channels Preset) as desc ribed.
VIDEO
STATUS
(6) User settings
MUTING
MEMO RY
Check the us er setting items acc ording to TABLE 2.
Where thes e do not agree, refer to the OPERATING
INSTRUCT IONS (USER'S GUIDE) and set the items as described.
FUNCTION
▼/▲
FUNCTION
/
EXIT
PIP OFF
(7) SERVICE MENU setting
Verify what to set in the SERVICE MENU, and set whatever is
necessary(Fig.1) .
Refer to the SERVICE ADJUSTMENT for s etting.
Although des ign is different, eac h remote c ontroller
has the same control function.
NOTE
10
No. 52005
AV-27F703
AV-27F713
AV-27F803
12.SYSTEM(SYS) 【System Constant setting】
Initial setting value
Initial setting value
AV-27F703/S
AV-27F703/S
No.
Setting item
No.
Setting item
AV-27F803/S
AV-27F803/S
/S
/S
AV-27F713
AV-27F713
SYS01
SYS02
SYS03
SYS04
SYS05
SYS06
SYS07
SYS08
SYS09
SYS10
SYS11
SYS12
VIDEO IN
PIP
04
01
01
01
01
00
01
01
01
01
01
01
03
00
00
01
01
00
01
00
01
01
01
01
SYS13
SYS14
SYS15
SYS16
SYS17
SYS18
SYS19
SYS20
SYS21
SYS22
SYS23
SYS24
HYP SURR
16:9 MD
01
01
01
01
01
01
01
01
01
01
01
00
01
01
01
00
01
01
01
01
01
01
01
00
3D Y/C
HYP SCAN
EZ SURF
ID DISP
Y CV
CCD PCHK
PURITY
VM
COMPULINK
CCD
NOISE CR
CLR TEMP
THEATER
THEATER PRO
BBE
VCHIP
VCHIP CA
JVC LOGO
CMP IN
CXA1875
Table 1
User setting
Setting item
Setting value
Setting item
Setting value
Use remote controller keys
OFF
Cable-02
10
OFF
POWER
DISPLAY
DYNAMIC
OFF
CHANNEL
VOLUME
TV/VIDEO
VIDEO STATUS
HYPE R S URROUND
BBE
TV
ON
(AV-27F803/S
)
Cable-04
PIP SOURCE
Settings of MENU
PICTURE MENU
INITIAL SETUP MENU
STANDARD
TINT
ENG
LANGUAGE
CENTER
FRONT PANEL LOCK
V2 COMPONENT-IN
AUTO SHUT OFF
OFF
COLOR
PICTURE
BRIGHT
DETAIL
CENTER
NO
CENTER+14
CENTER
OFF
CLOSED CAPTION
OFF (CC1 / T1)
+14 (AV-27F803/S
+10 (AV-27F703/S / AV-27F713/S
)
CENTER
LOW
AUTO TUNER SET UP Unnecessary to set
)
Setting Channel
Guard channel : All OFF
COLORTEMPERATURE
NOISE MUTING
CHANNEL SUMMARY
ON
V-CHIP
OFF
SOUND ADJUST MENU
CENTER
SET LOCK CODE
XDS ID
(0000) Unneces sary to set
ON
BASS
CENTER
TREBLE
BALANCE
MTS
CENTER
STEREO
CLOCK / TIMERS MENU
MANUAL
SET CLOCK
TIME ZONE : PACIFIC
D.S.T. : OFF
OFF
ON / OFF TIMER
Table 2
No. 52005
11
AV-27F703
AV-27F713
AV-27F803
SERVICE ADJUSTMENTS
ADJUSTMENT PREPARATION
1. You can make the necessary adjustments for this unit with
ADJUSTMENT EQUIPMENT
either the Remote Control Unit or with the adjustment tools
and parts as given below.
1. DC voltmeter (or digital voltmeter)
2. Oscilloscope
2. Adjustment with the Remote Control Unit is made on the
basis of the initial setting values, however, the new setting
values which set the screen to its optimum condition may
differ from the initial settings.
［
］
3. Signal generator (Pattern generator) NTSC
4. Remote control unit
5. TV audio multiplex signal generator.
6. Frequenc y counter
3. Make sure that AC power is turned on c orrec tly.
4. Turn on the power for s et and test equipment before use, and
start the adjustment procedures after waiting at least 30 minutes.
5. Unless otherwise s pec ified, prepare the most suitable reception
or input signal for adjustment.
KEY ASSIGNMENT OF REMOTE CONTROL UNIT
(RM-C325G)
6. Never touch any adjustment part which are not specified in the
list for this adjustment - variable resistors, transformers, initial
setting value, etc.
POWER
7. Pres etting before adjustment.
DISPLAY
Unless otherwise spec ified in the adjustment instructions, preset
the following functions with the remote c ontrol unit:
User menu preset value
SLEEP
TIMER
NUMBER
MENU ITEM
VIDEO STATUS
PRESET
STANDARD
CENTER
OFF
VIDEO
STATUS
MUTING
MEMO RY
BASS, TREBLE, BALANCE
HYPERSURROUND
FUNCTION
▼/▲
FUNCTION
/
EXIT
PIP OFF
TINT, COLOR,
PICTURE, BRIGHT, DETAIL
CENTER
STEREO
MTS
ADJUSTMENT ITEMS
%
%
CHECK OF B1 POWER SUPPLY
ADJUSTMENT OF VIDEO / CHROMA CIRCUIT
WHITE BALANCE(High Light & Low Light) adjustment
PIP WHITE BALANCE(High Light) adjustment
SUB BRIGHT adjustment
%ADJUSTMENT OF VCO
MAIN VCO adjustment
SUB VCO adjustment
RF. AGC adjustment
SUB CONTRASTadjustment
%FOCUS adjustment
%ADJUSTMENT DEF CIRCUIT
SUB COLOR adjustment
SUB TINT adjustment
%
V. HEIGHT / V. CENTER(4:3) adjustment
V. HEIGHT / L. LIN(16:9) adjustment
ADJUSTMENT OF MTS CIRCUIT
MTS INPUT LEVEL adjustment
H. POSI, H. SIZE & SIDE PIN [ (4:3) &(16: 9) ] adjustment
PIP DISPLAY POSI adjus tment
MTS SEPARATION adjustment
%HOW TO CHECK THE HIGH VOLTAGE HOLD DOWN CIRCUIT
12
No. 52005
AV-27F703
AV-27F713
AV-27F803
ADJUSTMENT LOCATIONS
LED & PW SW PWB
FRONT AV IN PWB
FRONT
POWER
LED
VOL
CH
MENU
SENSOR
IC7701
J6403 J6402 J6401
CN 6006
B
B
CN 6007
POWER
SW
D 7701
S7701
MAIN PWB
SS
CN 007
IC911
FRONT
IC621
DEG
AV SELECTOR PWB
AV-27F803 /S ONLY
F901
3D Y/C SEP
MODULE
PW
IC702
memory IC
PIP PWB
(AV-27F803 /S only)
T411
WHT
BLK
SUB VCO
IC201
TP-E
(
)
HV
B1
(TP-91)
3
1
PIP TUNER/IF
B1
TUNE R
IC101
IC421
T111
HVT
CN 003
MAIN VCO
V CENTER SW
S421
CN 005
E1
C
S1
UPPER : FOCUS
LOWER : SCREEN
CRT EARTH
(BRAIDED ASS'Y)
No. 52005
13
AV-27F703
AV-27F713
AV-27F803
CRT SOCKET PWB
TP-R
TP-B
TP-E1
TOP
TP-G
V
TP-E2
1
1
7
CN 30E2
6
TP-E(
)
CN 3004
CN 3005
CRT EARTH
(BRAIDED ASS'Y)
PIP PWB(AV-27F803/S)
AV SELECTOR PWB
TOP
TOP
PIP TUNER
IC
T4111
SUB VCO
AV-27F803 /SONLY
J5501
3D Y/C SEP
MODULE
J5502
J5504
(AV-27F803 /S
)
J5503
CN 4002
CN 5001
CN 5002
(AV-27F803/S
)
14
No. 52005
AV-27F703
AV-27F713
AV-27F803
BASIC OPERATION OF SERVICE MENU
1. TOOL OF SERVICE MENU OPERATION
Operate the SERVICE MENU with the REMOTE CONTROL UNIT.
2. In general, basic setting (adjustments) items or verifications are performed in the SERVICE MENU.
(1) V/C (S) ････････････････････････････････････ This set the setting values (adjustment values) of the VIDEO/CHROMA circuits.
･･･････････････････････････････････
(2) DEF (D)
(3) SOUND (A) ････････････････････････････････ This set the setting values (adjustment values) of the AUDIO circuit.
･･･････････････････････････････
This set the setting values (adjustment values) of the DEFLECTION circuit.
(4) OTHERS (F)
(5) PIP (PIP) ･･････････････････････････････････ This set the setting values(adjustment values) of the PICT URE-IN-PICTURE circuit.
(PIP is means as Picture In Picture) [AV-27F803/S
(6) 3LY/C(LYC) / 3DY/C(DYC) ･･･････････････････ This is us ed when the 3L(or 3D) Y/C MODE is verified. [Do not adjust]
This is used when the OTHERS MODE is verified. [Do not adjust]
]
[3L Y/C(LYC) =AV-27F703/S, AV-27F713/S / 3D Y/C( DYC )=AV-27F803/S
]
(7) LOW LIGHT････････････････････････････････ This sets the s etting values (adjustment values ) of the W HITE BALANCE circuit.
(8) HIGH LIGHT ･･･････････････････････････････ This sets the s etting values (adjustment values ) of the WHITE BALANCE circuit
(9) RF AFC････････････････････････････････････ This is us ed when the RF AFC MODE is verified. [Do not adjust]
(10)VCO ･･････････････････････････････････････ This is us ed when the IF VCO is adjus ted.
(11)I2C BUS ･･･････････････････････････････････ This is us ed when ON/OFF of the I2C BUS CTRL is set. [Fixed ON]
(12)SYSTEM (SYS) ･････････････････････････････ This is us ed when the SYSTEM is verified. [Fixed value]
3. Basic Op erations of the SERVICE MENU
(1) How to enter the SERVICE MENU.
SERVICE MENU
Press the SLEEP TIMER key and s et the SLEEP TIMER for
｢0 MIN｣.
SERVICE MENU
1.V/C(S)
2.DEF(D)
Then press the DISPLAY key and VI DE O S TATUS key of the
remote control unit at the same time to enter the SERVICE
MENU sc reen.(FiG .1)
3.SOUND(A)
5.PIP(PIP)
7. LOW LI GHT
9.RFAFC
4.OTHERS(F)
6.3L Y/C(LYC)
8.HI GH LIGHT
10.VCO
AV-27F803
6. 3D Y/C(DYC)
2
11.1CBUS
12.SYSTEM(SYS)
(2) SERVICE MENU screen selection
SELECT BY
OPERATEBY
In SERVICE MENU, press the FUNCTION (▼/▲) key to
select any of the SUB MENU items.
EXITBY EXIT
(The letters of the s elected items are displayed in yellow. )
Fig.1
(3) Enter the any setting ( adjustment ) mode
% 1. V/C(S), 2. DEF(D), 3. SOUND(A), 4. OTHERS(F),
KEY ASSIGNMENT OF REMOTE CONTROL UNIT
(RM-C325G)
/ AV-27F713 /S
]
5. PIP(PIP), 6. 3L Y/C(LYC) [AV-27F703/
/
S
[AV-27F803 /S
]
3DY/C(DYC)
, 7. LOW LIGHT, 8. HIGH LIGHT,
9. RF AFC, 10. VCO, 11. I2C BUS and 12. SYSTEM(SYS)
POWER
mode.
DISPLAY
1) If select any of 1. V/C(S ) / 2. DE F(D) / 3. SO UND(A)
/ 4. OTHERS(F) / 5. PIP(PIP) / 6. 3L Y/C(LYC)
[AV-27F703/S / AV-27F713/S
]
[AV-27F803 /S
]
SLEEP
TIMER
, 3D Y/C(DYC)
7. LOW LIGHT / 8. HIGH LIGHT / 9. RF AF C /
10. VCO / 11. I2C BUS / 12. SYSTEM(SYS) items, and
the FUNCTION ( ) key is pressed from SERVICE
/
NUMBER
VIDEO
/
STATUS
MUTING
MENU (MAIN MENU), the each screens will be
displayed as shown in figure page later.
MEMO RY
FUNCTION
▼ ▲
/
FUNCTION
/
2) Then the settings or verifications can be performed
EXIT
PIP OFF
Although des ign is different, eac h remote c ontroller
has the same control function.
NOTE
No. 52005
15
AV-27F703
AV-27F713
AV-27F803
1.V/C(S)
SERVICE MENU (MAIN MENU)
7.LO W L IGHT
R F
4
:
3
S TD LO W
SE RV ICE ME NU
1 .V/ C( S)
2 .DE F(D )
3 .SO U ND( A )
5 .PI P(P IP)
7 .LO W LIG HT
4 .O THE RS( F)
6 .3 L Y/ C( LYC )
8.H IG H LIG HT
1 0. VCO
9 .RF AFC
2
1 1. 1
C
BU S
1 2. SYSTE M(S YS)
SEL ECT BY
O PER ATE BY
B RI G HT
***
***
***
EX IT B Y EXI T
S0 1
BR IG H T
***
***
2.DEF(D)
8.HIGH L IGHT
R F
4
:
3
S TD LO W
D 01
V
FRE Q
***
***
***
Do n ot ad just
3.SOUND( A)
9.RF AFC
TO O H IG H G O O D
TU NE R
A FG
FIN E
TO O LO W
M A IN
ON
A 01
IN LE VEL
***
***
4.OTH ERS(F)
10.VCO
TU NE R
M A IN
H IG H LEV EL
R EFER EN C E LE VE L
LO W LEV EL
SY NC
***
F0 1
N O
Do n ot ad just
5.PIP( PI P)
2
11.I C BUS
PI P0 1 B RI GH T
***
I2 C
BU S
O N
6.3L Y/C(L YC) / 6.3D Y/C(DYC)
12.SYSTEM(SYS)
***
***
LYC 0 1
SY S0 1 VI DE O IN
or DYC 01=AV-27F 803
16
No. 52005
AV-27F703
AV-27F713
AV-27F803
(4) Setting method
1) FUNCTION (▼/▲) key.
Select the SETTING ITEM.
RF 4 : 3 STD LOW
2) FUNCTION (
/
) key
Setting (adjust) the SETTING VALUE of the SETTING ITEM.
SETTING ITEM
When the key is released the SETTING VALUE will be stored (memorized).
3) EXIT key
S01 BRIGHT
***
Returns to the previous screen.
SETTING No
SETTING VALUE
1.V/C (S)
(5) Releasing SERVICE MENU
1) After returning to the SERVICE MENU upon completion of the setting
(adjus tment) work, press the EXIT key again.
BRIGHT
***
***
***
***
★ The settings for LOW LIGHT and HIGH LIGHT are des cribed in the
WHITE BALANCE page of ADJUSTMENT.
7.LOW LIGHT
★ The setting for MAIN VCO are described in the VCO page of ADJ USTMENT .
***
***
8.HIGH LIGHT
TUNER
MAIN
HIGH LEVEL
REFERENCE LEVEL
LOW LEVEL
SYNC
NO
10.VCO
No. 52005
17
AV-27F703
AV-27F713
AV-27F803
INITIAL SETTING VALUE OF SERVICE MENU
1. Ad justment of the SERVICE MENU is made on the basis of the initial setting values ; however, the new setting values which
set the screen in its optimum condition may differ from the initial setting.
2. Do not change the initial setting values of the setting (adjustment) items not listed in “ADJUSTMENT”.
--- can not be adjustment
"
V / C MODE
RF
STANDARD(4:3)
EXTERNAL
(S,CV)
/S
/S
S
AV-27F803
AV-27F703 ,AV-27F713/
COMPONENT
No .
Setting item
THEATER
(4:3)
THEATER
(4:3)
AV-27F703
AV-27F703/S
AV-27F713/S
/S
STD(4:3)
STD(16:9)
STD(4:3)
STD(16:9)
AV-27F803
AV-27F803
/S
/S
AV-27F713
/S
S01
S02
S03
S04
S05
S06
S07
S08
S09
S10
BRIGHT
PICTURE
COLOR
TINT
64
60
50
68
38
---
---
---
---
---
---
---
---
---
---
---
64
60
50
68
33
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
46
72
45
---
---
46
72
40
---
---
---
---
---
---
---
---
---
DETAIL
---
---
40
35
±
±
±
±
00
BRIGHT +-
PICT+-
00
+01
-10
-03
-03
00
+01
-10
-03
-03
-01
±00
-02
+11
---
-02
±00
-02
+05
---
00
-08
-08
±00
---
±00
---
±
±
COLOR +-
TINT+-
00
00
±00
±00
---
---
±
±
00
DETAIL+-
---
00
---
---
---
Initial setting value
RF/EXT (S,CV)
COMPONENT
STANDARD
No .
Setting item
STANDARD
LOW HIGH
THEATER
THEATER
LOW
HIGH
LOW
HIGH
LOW
HIGH
S11
S12
S13
S14
S15
S16
S17
S18
S19
S20
S21
S22
S23
S24
R CUT OFF
G CUT OFF
B CUT OFF
R DRIVE
B DRIVE
30
30
30
64
64
---
---
---
---
---
03
02
01
01
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
02
---
---
---
---
---
---
---
---
---
---
---
---
---
01
---
---
---
---
---
---
---
---
---
---
---
---
---
01
---
---
---
---
---
---
±
±
±
R CUT +-
00
00
00
-10
±00
-10
±00
G CUT +-
±00
±00
±00
±
±
±
B CUT +-
00
00
00
R DRV+-
+05
+06
03
+13
-25
01
+07
-09
01
±
B DRV+-
00
NTSC MAT
BLACK ST
DCREST
DCRSW
02
---
02
---
---
---
---
---
01
---
---
01
---
Initial setting value
EXTERNAL
No .
Setting item
RF
COMPONENT
S25
S26
S27
S28
ASY SHRP
BPF FO
04
00
00
01
04
00
00
01
04
---
---
---
KILR OFF
KILR SEN
18
No. 52005
AV-27F703
AV-27F713
AV-27F803
No .
Setting item
Initial setting value
No .
Setting item
Initial setting value
S29
S30
S31
S32
S33
S34
S35
S36
S37
S38
RGB MUTE
BLUE B
00
00
03
00
00
07
05
00
03
01
S39
S40
S41
S42
S43
S44
S45
S46
S47
Y MUTE
SVM GAIN
SVM PH
WPL
00
03
01
00
00
04
63
+03
01
VIDEO SW
CMP ABCL
OSD ABCL
OSD CONT
SUB CONT
ABL GAIN
ABL PNT
COL GMM
V1 GAIN
AGC ADJ
VMOFF DE
APC CLK
Y GAMMA
--- can not be adjustment
"
DE F MODE
Initial setting value
Initial setting value
/S
/S
/S
/S
AV-27F803 ,AV-27F703
AV-27F803 ,AV-27F703
/S
/S
No.
Setting item
AV-27F713
No.
Setting item
AV-27F713
RF
(4:3)
RF
(16:9)
EXT
(4:3)
RF
(4:3)
RF
(16:9)
EXT
(4:3)
D01
D02
D03
D04
D05
D06
D07
D08
D09
D10
D11
D12
D13
D14
D15
D16
D17
V FREQ
AFC GAIN
H POSI
00
00
00
---
00
---
00
---
-30
---
00
---
00
---
00
---
00
01
03
D18
D19
D20
D21
D22
D23
D24
D25
D26
D27
D28
D29
D30
D31
D32
D33
WVMT BTM
EWCR TOP
EWCR T+-
EWCR BTM
EWCR B+-
EW PARA
EW PARA+-
V EHT
00
01
---
00
---
00
---
-15
---
00
---
00
---
00
00
00
00
00
12
---
14
---
36
---
00
---
00
---
31
---
00
00
00
00
20
---
00
---
75
---
32
---
09
---
10
---
33
---
00
02
20
---
00
---
75
---
32
---
09
---
10
---
33
---
00
12
---
14
---
36
---
00
---
00
---
31
---
00
00
00
H POSI+-
V PHASE
V PH+-
V SIZE
V SIZE+-
V CENTER
V CENT+-
V S CORR
V S CO+-
V LIN
V EHT+-
H EHT
H EHT+-
TRAPEZ
TRAPEZ+-
V AGC
V LIN+-
H SIZE
BLANK SW
VRMP BI
H SIZE+-
WVMT TOP
"
SOUND MODE
No .
Setting item
Initial setting value
A01
A02
A03
A04
A05
A06
IN LEVEL
LOW SEP
HI SEP
10
32
32
SAPC
00
BBE BASS
BBE TRE
±00
-03
No. 52005
19
AV-27F703
AV-27F713
AV-27F803
Setting item do not display
"
OTHERS MODE (Do not adjust)
Initial setting value
AV-27F703/S
Initial setting value
AV-27F703/S
No.
Setting item
No.
Setting item
/S
/S
AV-27F803
AV-27F803
/S
/S
AV-27F713
AV-27F713
F01
F02
F03
F04
F05
F06
F07
F08
F09
F10
F11
F12
F13
F14
OSD POSI
OSD PREQ
CCD POSI
CCD FREQ
CCD CONT
PURWBCK
PUR CONT
SN TYPE
YCSN TM
YCSN E
37
90
39
91
04
00
02
01
05
05
16
32
03
05
37
90
39
91
04
00
02
02
05
05
16
32
03
05
F15
F16
F17
F18
F19
F20
F21
F22
F23
F24
F25
F26
F27
F28
VCSN 1
00
10
00
10
VCSN 2
VCSN 3
20
20
VCSN STP
VN DAT A
VM DAT B
VM DAT C
VM DAT D
VM DAT E
VMOFF TY
YC VMOFF
EZSF T M
XDSID TM
FM TRAP
02
02
+08
-08
-20
-32
01
+08
-08
-20
-32
01
02
02
YCSN F
255
40
255
40
YCSN G
VNR CHK
VCSN TM
15
15
01
01
"
3L Y / C MODE (Do not adjust)
Initial setting value
No.
Setting item
/S
/S
AV-27F703 ,AV-27F713
LYC01
LYC02
LYC03
LYC04
LYC05
LYC06
LYC07
LYC08
LYC09
LYC10
LYC11
LYC12
MO DE
VENH
PDSOFF
CB
04
01
00
00
02
00
01
00
01
00
00
00
VNLR
GSEL0
GSEL1
COR
TRAP
CHTRAP
CBPF
ENHOFF
"
/S
3DY / C MODE [AV-27F803 ]
No.
Setting item
Initial setting value
No .
Setting item
Initial setting value
DYC01
DYC02
DYC03
DYC04
DYC05
DYC06
DYC07
DYC08
DYC09
DYC10
DYC11
DYC12
DYC13
DYC14
D7-0
D7-4
21
00
00
193
04
02
02
42
36
34
01
22
00
15
DYC15
DYC16
DYC17
DYC18
DYC19
DYC20
DYC21
DYC22
DYC23
DYC24
DYC25
DYC26
DYC27
DYC28
D7-0
D7-0
D7-0
D7-0
D7-0
D7-0
D7-0
D7-0
D7-0
D7-0
D7-0
D7-0
D7-0
3DYC
09
241
37
D1-0
D7-0
08
D7-3
68
RF CDL
EXT CDL
D7-0
48
08
51
D7-0
200
74
D7-0
D7-0
236
00
D5-0
D7-0
00
D7-0
01
20
No. 52005
AV-27F703
AV-27F713
AV-27F803
/S
"
PIP MODE (Do not adjust)[AV-27F803 ]
No .
Setting item
Initial setting value
No.
Setting item
Initial setting value
PIP01
PIP02
PIP03
PIP04
PIP05
PIP06
PIP07
PIP08
PIP09
PIP10
PIP11
PIP12
PIP13
PIP14
PIP15
PIP16
PIP17
PIP18
PIP19
PIP20
PIP21
PIP22
PIP23
PIP24
PIP25
PIP26
BRIGHT
PICTURE
TINTI
00
30
42
06
00
00
00
63
65
65
22
15
12
11
01
00
01
00
07
00
00
00
01
00
01
00
PIP27
PIP28
PIP29
PIP30
PIP31
PIP32
PIP33
PIP34
PIP35
PIP36
PIP37
PIP38
PIP39
PIP40
PIP41
PIP42
PIP43
PIP44
PIP45
PIP46
PIP47
PIP48
PIP49
PIP50
PIP51
PIP52
PIP53
UVPOLAR
MAT
00
01
01
01
01
00
00
01
00
00
00
00
04
00
00
00
00
00
00
00
00
00
40
05
00
00
00
YCOR
COLOR
XFREQF
WTCHDG
COLON
R CUTOFF
G CUTOFF
B CUTOFF
R DRIVE
G DRIVE
B DRIVE
L POSI
ACQNEW
DSTDET
CRIBEOK
FCBEOK
NOCRID
NONSED
PIP ADJ
R POSI
UPR POSI
LWR POSI
PICT LCK
SELDEL
AGCFIX
AGCADST
AGC
BRI EXT
PCT EXT
TNT EXT
COR EXT
R-D EXT
G-D EXT
B-D EXT
BRT COMP
PCT COMP
TNT COMP
COR COMP
R-D COMP
G-D COMP
B-D COMP
BLKINVB
BLKINVR
VSPDEL
VSPISQ
RGBIN
FRSEL
OUTFOR
/S
/S
NOTE The AV-27F703 , AV-27F713 model do not have PIP function, But, if memory data is out of variable range, occas ionally s ome
problems happen. Then we need to input thes e data
.
No. 52005
21
AV-27F703
AV-27F713
AV-27F803
■
ADJUSTMENTS
B1 POWER SUPPLY
Measuring
instrument
DC Voltmeter 【B1】
Connector
Item
Test point
Adjustment part
Description
Check of
B1 POWER
SUPPLY
1. Receive the blac k-and-whitesignal. (color off)
2. Connect the DC voltmeter to【B1】connector pin【1】(TP-91)
and TP-E(#) (B1 connector pin【3】).
(pin1 & pin3)
TP-91(pin1)
TP-E(#):(pin3)
3. Confirm that the voltage is DC134.5V±2V.
ADJUSTMENT OF VCO
Measuring
Item
Test point
Adjustment part
10:VCO MAIN
Description
instrument
"
MAIN VCO
adjustment
Signal
generator
It must not adjust without signal
1. Receive color bar signal.
CW TRANSF.(T111)
[MAIN PWB]
2. Enter the SERVICE MENU mode.
3. Press the ▲ key, and select the 10:VCO mode from the
SERVICE MENU.
4. Push the FUNCTION
/
key, and select MAIN.
5. Confirm that the color change from HIGH LEVEL to LOW
LEVEL by CW TRANSF T111 at MAIN PWB, and check the
SYNC : YES.
TUNER
HIGH LEVEL
REFERENCE LEVEL
LOW LEVEL
MAIN
6. Adjust until REFERENCE LEVEL mark turns green.
And then confirm that the SYNC : YES again.
7. Press the EXIT key to get out SERVICE MENU.
GREEN
SYNC:
YES
SUB VCO
Signal
10:VCO
"
It must not adjust without signal
adjustment
generator
1. Receive color bar signal.
(AV-27F803 ONLY)
2. Enter the SERVICE MENU mode.
1. Press the FUNCTION (▲) key, and s elect the 10:VCO mode
from the SERVICE MENU.
4. Push the left / right (
/
) key, and select SUB.
5. Confirm that the change from HIGH LEVEL to LOW LEVEL by
CW transformer T4111 at PIP PWB, and c heck the SYNC :
YES.
TUNER
HIGH LEVEL
REFERENCE LEVEL
LOW LEVEL
SUB
YES
6. Adjust until REFERENCE LEVEL mark turns green.
And then confirm that the SYNC : YES again.
7. Press the EXIT key to get out SERVICE MENU screen.
GREEN
SYNC:
22
No. 52005
AV-27F703
AV-27F713
AV-27F803
ADJUSTMENT OF RF AGC
Measuring
Item
Test point
Adjustment part
S45:AGC ADJ
Description
instrument
RF. AGC
adjustment
1. Receive a black and white signal (color off).
2. Select S45:AGC ADJ of the V/C MODE.
3. Press the MUTING key and turn off c olor.
4. With the FUNCTION
key to get the noise in the screen
picture (zero s ide of s etting value).
Variable
range
Initial setting
value
5. Press the FUNCTION
key several times and step when
No.
S45
Setting item
AGC ADJ
nois e dis appears from the screen ( at that time, not to increas e
the value too much).
0～127
63
6. Change to other c hannels and mak e sure that there is no
irregularity.
7. Press the MUTING key and get color out.
ADJUSTMENT OF FOCUS
Measuring
Item
Test point
Adjustment part
Description
instrument
FOCUS
adjustment
Signal
generator
FOCUS VR
[In HVT]
1. Receive the cross-hatch signal.
2. While looking at the screen, adjust the FOCUS VR to the
vertical and horizontal lines will be thinnest and sharpest
center horizontal line.
3. Make sure that the picture is in focus even when the screen
gets darkened.
ADJUSTMENT OF DEFLECTION CIRCUIT
Measuring
Item
Test point
Adjustment part
Description
instrument
V. HEIGHT
V. CENTER
adjustment
(4:3)
Signal
generator
D05:V PHASE
D07:V SIZE
1. Receive the cross -hatch signal.
2. Enter the SERVICE MENU.
3. Select the D05:V PHASE of the 2.DEF (D) item, and it c hecks
that the value of D05:V PHASE is 0.
V. CENTER SW
(S1421)
[MAIN PWB]
4. Adjust the vertical screen size of the visible screen top to
90.0% with the D07:V S IZE and V CENTER SW S1421.
＊
～
Bottom is to be located with 85% 95% range.
＊ It adjust it by DEF SERVICE D13: V LIN. And D11: VS CORR.
when vertical linearity is not even.
Screen size
Pict ure
size
(100%)
Variable
range
Initial setting
value
Screen
size
(90. 0%)
No.
Setting item
～
D05
D07
V PHASE
V SIZE
0
7
00
75
0～127
Picturesize (100%)
No. 52005
23
AV-27F703
AV-27F713
AV-27F803
Measuring
instrument
Signal
Item
Test point
Adjustment part
Description
V. HEIGHT
D18:V. SIZE+-
D14:V. LINE+-
＊ Regular (4:3) size V. HEIGHT / V. CENTER adjustment should
V. LINEARITY generator
adjustment
be fi nished.
1. Receive a blac k -and- white signal (color off).
2. Select 16:9 as pect mode with remote c ontr ol unit.
3. Confirm that the width of V. BLANKING is equal to adjus tment
val ue (B).
(16:9)
B
4. If the adjustment is not correct, enter the SERVIC E MENU.
5. Then adj ust the D 08:V. SIZE+- and D 14:V. LIN+- to be same
to adjustment value (B).
[B=B]
B
6. Press the EXIT key to twice to return the nor mal screen.
(NOTE)
＊ When you c hange the VERTICAL adj ustment value of the
regular mode (4:3), Revi ew the adjustment of 16:9 mode
again.
Adj .
point
Item
No.
Setting
item
Variable
range
Setting value
(mm)
D08
D14
V. SIZE+-
V. LIN+-
-128～127
50mm
B
-128～127
H. POSITION
H. SIZE &
SIDE PIN
adjustment
(4:3)
Signal
generator
D03:H.POSI.
D15:H. SIZE
D23:EW PARA
D19:EW CR TOP
D21:EW CR BMT
＊ V. HEIGHT / V. POSITION adjustment should be fi nished.
1. Receive a cross-hatch signal.
2. Enter the SERVICE MENU.
3. Select the D03: H. POSI from 2.DEF (D) item.
4. Adjust byH. POSIT ION to be same size at both side.
5. Then adj ust the horizontal size of the visible scr een at both
size to 90% with the D 15:H.SIZE.
Screen size(90.0%)
6. And adj ust the vertical line at both si de to become linear line by
D23:EW PARA.
7. Confirm the linearity of vertical line and horizontal size/
8. If it is necessary, readjust 1.～7.
Pict ure
size
(100%)
Screen
size
(90.0%)
9. Press the EXIT key twice to return the nor mal screen.
(NOTE)
＊ If it is not str aight the vertic al upper and bottom corner line
adjustment the upper and bottom corner pin by D19:EW CR
TOP and D21:EW CR BTM.
Picturesize (100%)
Variable
range
Initial setting
value
No.
Setting item
D03
D15
D23
D19
D21
H. POSI
H. SIZE
0～31
20
33
36
12
14
0～63
0～63
0～31
0～31
EW PARA
EW CR TOP
EW CR BMT
24
No. 52005
AV-27F703
AV-27F713
AV-27F803
Measuring
instrument
Item
Test point
Adjustment part
Description
H. POSITION
H. SIZE &
SIDE PIN
adjustment
(16:9)
Signal
generator
D04:H.POSI+-
D16:H. SIZE+-
D20:EW CR T+-
D22:EW CR B+-
D24:EW PARA+-
＊ V. HEIGHT / V. POSITION adjustment should be fi nished.
＊ H. SIZE, H. POSI and SIDE PIN adjustment should be
finished. (Regular size(4:3)).
1. Receive the cr oss-hatc h signal.
2. Select 16:9 as pect mode with remote c ontr ol unit.
3. Enter the SERVICE MENU.
(H)
Screen size90.0%
4. Confirm both sides of cross-hatch to be the adjustment value
90% .
5. If it not c orrect, adjust to be value 90% at the D16:H. SIZE +-
and D04:H.POSI+-.
6. Confirm the vertical 2nd line from lift and right to be straight.
7. If it is not str aight, adjust to be straight at D24:EW PARA+-,
D20:EW CR T+- and D22:EW CR B+-.
(V)
Screen
size
90.0%
Pict ure
size
100%
(NOTE)
＊ Review the adjustment of 16:9 mode again when you c hange
the SIDE PIN adjustment value of r egular (4:3) mode.
Pict ure size 100%
Variable
range
Setting
value
No.
Setting item
D04
D16
D20
D22
D24
H. POSI+-
H. SIZE+-
-128～+127
00
00
00
00
00
-128～+127
-128～+127
-128～+127
-128～+127
EW CR T+-
EW CR B+-
EW PARA+-
PIP DISPLAY
POSITION
adjustment
Signal
generator
PIP11:L POSI.
＊ Main pictur e’s V. HEIGHT, V. POSI, H. SIZE, H. POSI. Shoul d
PIP12:R POSI.
be fi nished.
PIP13:UPR POSI.
PIP14:LW R POSI.
＊ Set the VIDEO STATUS to STANDARD.
(AV-27F 803/S)
1. Receive a blac k -and- white signal (color off)
2. Enter the SERVICE MENU.
3. Select the 5:PIP(PIP) fr om SERVIC E MENU.
4. Set the initial setting value of the PIP13:UPR POSI. with the
(
/
) key of the remote control unit.
5. Adjust the PIP13:UPR POSI. so that he position of the PIP
screen edge of upper will be at X1 as sho wn.
PIP screen
6. Adjust the corresponding modes of PIP14, PIP11, PIP12 wit h
the s ame steps as 3～5 above.
X1
(UPPER POSI.)
Setting position
Item
No.
Setting
item
Variable
range
setting
value
POSI.
X1
(%)
80
80
80
80
PIP13 UPR POSI
PIP14 LW R POSI
0～127
0～127
0～255
0～255
12
11
22
15
X2
(LOWER POSI. )
X2
Y1
(LEFT POSI.)
Y2
(RIGHT POSI.)
PIP11
PIP12
L. POSI
R. POSI
Y1
Y2
No. 52005
25
AV-27F703
AV-27F713
AV-27F803
ADJUSTMENT OF VIDEO / CHROMA CIRCUIT
Measuring
Item
Test point
Adjustment part
Description
instrument
WHITE
Signal
generator
S01:BRIGHT
1. Receive the blac k and white signal ( color off ).
2. Select the LOW LIGHT mode from the SERVICE MENU.
3. Confirm the initial setting value of R CUTOFF, G CUTOFF,
B CUTOFFand BRI GHT.
BALANCE
(Low Light)
adjustment
S11:R CUTOFF
S12:G CUTOFF
S13:B CUTOFF
0. Display a single horizontal line by pressing the ① key of the
SCREEN VR
[ in HVT]
remote control unit.
5. Turn the screen VR all the way to the left.
6. Turn the screen VR gradually to the right from the left until
either one of the red, blue or green colors appears faintly.
7. Adjust the two colors which did not appear until the single
horizontal line that is displayed bec omes white using the ④
[LOW LIGHT]
⑨
to
keys of the remote c ontrol unit.
8. Turn the screen VR until the single horizontal line is displayed
faintly.
②
9. Press the
key to cancel the single horizontal line mode.
10. Adjust the BRIGHT lev el to become the blac k c omponent
shines white slightly.
BRIGHT
***
***
***
***
11. Confirm that whether the color ingredient of R, G, or B is visible
to the black component, which shines white slightly
12. When the color ingredient can be s een, two colors other than a
visible color are adjusted, and it is made to look white.
13. Return the value of BRIGHT to initial setting value.
●
③
The
EXIT key is the cancel key for the WHITE BALANCE.
[H.LINE SCREEN ]
REMOTE CONT ROL UNIT
Variable
range
Initial setting
value
No.
Setting item
H.LINE ON
H.LINE OFF
EXIT
0～255
0～255
0～255
S11
S12
S13
S01
R CUT OFF
G CUT OFF
B CUT OFF
BRIGHT
30
30
30
64
1
2
3
R CUTOFF
G CUTOFF
B CUTOFF
4
5
6
R CUTOFF
G CUTOFF
B CUTOFF
～
0
127
7
8
9
26
No.52005
AV-27F703
AV-27F713
AV-27F803
Measuring
instrument
Item
WHITE
BALANCE
(High Light)
adjustment
Test point
Adjustment part
Description
Signal
generator
S14:R DRIVE
S15:B DRIVE
1. Receive the blac k-and-white signal ( color off ).
2. Select the HIGH LIGHT mode in the SERVICE MENU.
3. Set the initial setting value of R DRIV E and B DRIVE with the
④, ⑥, ⑦and ⑨ keys of the remote c ontrol unit.
4. Adjust the screen until it becomes white using the ④, ⑥, ⑦
and ⑨ keys of the remote c ontrol unit.
●The ③ EXIT key is the cancel key for the WHITE BALANCE.
Variable
range
Initial setting
value
No.
Setting item
***
***
S14
S15
R DRIVE
B DRIVE
0～127
64
64
[WHITE SCREEN]
0～127
REMOTE CONT ROL UNIT
H.LINE ON
H.LINE OFF
EXIT
1
2
3
R DRIVE
B DRIVE
4
5
8
6
R DRIVE
B DRIVE
7
9
PIP WHITE
BALANCE
(High Light)
Signal
generator
PIP08:R DRIVE
PIP10:B DRIVE
1. Receive the blac k-and-white signal ( color off ).
2. Select the PIP08:R DRIVE, PIP10:B DRIVE, of the 5.PIP(PIP)
SERVICE MENU.
adjustment
(AV-27F803 ONLY)
3. Set the corresponding initial setting values with the
FUNCTION (
/
) key of the remote control unit.
4. Adjust the PIP08:R DRIVE, PIP10:B DRIVE until the s creen
becomes white.
Variable
range
Initial setting
value
No.
Setting item
PIP08
PIP10
R DRIVE
B DRIVE
0～255
63
65
0～255
No.52005
27
AV-27F703
AV-27F713
AV-27F803
Measuring
instrument
Item
Test point
Adjustment part
S01:BRIGHT
Description
SUB BRIGHT
adjustment
1. Receive the broadcast and set the STANDARD mode.
2. Enter the SERVICE MENU.
3. Select S01:BRIGHT of the V/C(S) mode.
4. Set the initial setting value of the S01. BRIGHT with the
Variable
range
Initial setting
value
FUNCTION
/
key.
No.
S01
Setting item
BRIGHT
5. If the brightness is not the best with the initial setting value,
make fine adjustment of the S01. BRIGHT until you get the
optimum brightness .
0～127
64
SUB
CONTRAST
adjustment
S02:PICTURE
1. Receive the broadcast and set the STANDARD mode.
2. Enter the SERVICE MENU.
3. Select S02:PICTURE of the V/C(S) mode.
4. Set the initial setting value of the S02:PICTURE with the
FUNCTION
/
key.
Variable
range
Initial setting
value
No.
S02
Setting item
PICTURE
5. If the contrast is not the best with the initial setting value, make
fine adjustment of the S02:PICTURE until you get the optimum
contrast.
～
0
127
60
S03:COLOR
[ Method of adjustment without measuring instrument ]
SUB COLOR
adjustment
Signal
generator
1. Receive the broadcast.
2. Enter the SERVICE MENU.
Remote
control unit
3. Select S03:COLOR of the V/C(S) mode.
4. Set the initial s etting value of the S03:COLOR with the
FUNCTION
/
key.
5. If the c olor is not the best with the Initial s etting value, make
fine adjus tment of the S03:COLOR until you get the optimum
color.
No.
S03
Setting item
COLOR
Variable
range
Initial setting
value
0～127
50
Signal
TP-B
S03:COLOR
[ Method of adjustment using measuring instrument ]
generator
TP-E(#)
[CRT
1. Input the full field c olor bar signal (75% white).
2. Enter the SERVICE MENU.
Oscilloscope
SOCKET
PWB]
3. Set the RFAFC to OFF.
4. Select S03:COLOR of the V/C(S) mode.
5. Set the initial setting value of the S03:COLOR with the
Remote
control unit
FUNCTION
/
key.
6. Connect the osc illosc ope between TP-Band TP-E.
7. Adjust COLOR and bring the value of (A) in the illustration to
the voltage shown in the table bellow.
8. Reset the RFAFC setting pos ition from OFF to ON.
Y
G
R
W-B
[A]Voltage
Models
(A)
Cy
－
( )
AV-27F703/S
0V
/S
AV-27F713
+13V
Mg
(
＋)
/S
W
AV-27F803
B
28
No.52005
AV-27F703
AV-27F713
AV-27F803
Measuring
instrument
Item
Test point
Adjustment part
S04:TINT
Description
SUB TINT
Signal
[ Method of adjustment without measuring instrument ]
adjustment
generator
1. Receive the broadcast.
2. Enter the SERVICE MENU.
Remote
control unit
3. Select S04:TINT of the V/C(S) mode.
4. Set the initial setting value of the S04:TINT with the
FUNCTION
/
key.
5. If the tint is not the bes t with the initial setting value, make fine
adjustment of the S04:TINT until you get the optimum tint.
Variable
range
Initial setting
value
No.
S04
Setting item
TINT
68
0～127
Signal
TP-B
S04:TINT
[ Method of adjustment using measuring instrument ]
generator
TP-E(#)
1. Input the full field c olor bar signal (75% white).
2. Enter the SERVICE MENU.
[CRT
Oscilloscope SOCKET
PWB]
3. Set the RFAFC to OFF.
4. Select S04:TINT of the V/C(S) mode.
5. Set the initial setting value of the S04:TINT with the
Remote
control unit
FUNCTION
/
key.
6. Connect the osc illosc ope between TP-Band TP-E.
7. Adjust TINT and bring the value of (B) in the illustration to the
voltage shown in the table bellow.
8. Reset the RFAFC setting pos ition from OFF to ON.
Y
W-Mg
[B]Voltage
+26V
G
R
AV-27F703/S
AV-27F713/S
/S
AV-27F803
(B)
Cy
(－)
B
0V
＋
( )
W
No.52005
29
AV-27F703
AV-27F713
AV-27F803
ADJUSTMENT OF MTS CIRCUIT
Measuring
Item
Test point
Adjustment part
A01:IN LEVEL
Description
instrument
MTS INPUT
LEVEL
Ad justment
Sophometer AUDIO
1. Receive the cross-hatch signal (c ros s-hatch / 400Hz)
2. Enter the SERVICE MENU.
OUT R pin
3. Select the A01:IN LEVEL of the 3:SOUND(A) MODE.
4. Verify that the A01:IN LEVEL is set at its initial setting value.
5. Connect the sophometer to AUDIO OUT R pin.
6. Adjust the MTS input level to 500mV(rms) by A01:IN LEVEL
with remote control unit.
7. Press the EXIT key to return to the SERVICE MENU screen.
Variable
range
Initial setting
value
No.
A01
Setting item
IN LEVEL
0～15
010
MTS
TV audio
R OUT
A02:LOW SEP.
A03:HI SEP.
1. Input the stereo L signal (300Hz) from the TV audio multiplex
signal generator to the antenna terminal.
SEPARATION multiplex
adjustment
L OUT
signal
generator
[AUDIO OUT]
2. Connect an oscilloscope to R OUT pin of the AUDIO OUT, and
display one c ycle portion of the 300Hz signal.
3. Enter the SERVICE MENU.
Oscilloscope
4. Select the A02:LOW SEP. of the 3:SOUND(A) mode.
5. Set the initial s etting value of the A02:LOW SEP. with the
FUNCTION (
/
) key.
6. Adjust the A02:LOW SEP. so that the stroke element of the
300Hz signal will become minimum.
7. Change the connection of the oscilloscope to L OUT pin of the
AUDIO OUT , and enlarge the voltage axis.
8. Change the signal to 3kHz, and similarly adjust the
A03:HI SEP.
9. Press the EXIT key to return to the SERVICE MENU screen.
Variable
range
Initial setting
value
Setting item
No .
L-Channel
signal waveform
R-Channel
crosstalk portion
0～63
A02
A03
LOW SEP.
HI SEP.
032
032
Minimum
0～63
1 c ycle
30
No.52005
AV-27F703
AV-27F713
AV-27F803
HOW TO CHECK THE HIGH VOLTAGE HOLD DOWN CIRCUIT
1. HIGH VOLTAGE HOLD DOWN CIRCUIT
After repairing the high voltage hold down circuit shown in Fig. 1.
This circuit shall be checked to operate correctly.
2. CHECKING OF THE HIGHVOLTAGE HOLD DOWN CIRCUIT
(1) Turn the power switch to on.
(2) As shown in Fig. 1, set the resistor between S1 c onnector
2
and
3
.
(3) Make sure that the screen pic ture disappears.
(4) Temporarily unplug the power plug.
(5) Remove the resistor replaced S1 connec tor
2
and
3
.
(6) Again plug the power plug, make sure that the normal picture is displayed on the screen.
RESISTOR
Ω±
Ω
Q951
R950
S1 CONNECTOR
ON OFF
Q532
Q531
D534
D535
4
9 D525
R935
Fig. 1
No.52005
31
AV-27F703
AV-27F713
AV-27F803
REPLACEMENT OF CHIP COMPONENT
!
CAUTIONS
1. Avoid heating for more than 3 seconds.
2. Do not rub the electrodes and the resist parts of the pattern.
3. When removing a c hip part, melt the s older adequately.
4. Do not reuse a chip part after removing it.
! SOLDERING IRON
1. Use a high ins ulation s oldering iron with a thin pointed end of it.
2. A 30w s oldering iron is rec ommended for easily removing parts.
! REPLACEMENT STEPS
2. How to install Chip parts
1. How to remove Chip parts
#
# Resistors, capacitors, etc
Resistors, capacitors, etc
(1) Apply solder to the pattern as indicated in the figure.
(1) As shown in the figure, push the part with tweezers and
alternately melt the solder at each end.
(2) Grasp the chip part with tweezers and plac e it on the s older.
Then heat and melt the solder at both ends of the chip part.
(2) Shift with tweezers and remove the chip part.
# Transistors, diodes, variable r esistor s, etc
# Transistors, diodes, variable r esistor s, etc
(1) Apply solder to the pattern as indicated in the figure.
(2) Grasp the chip part with tweezers and place it on the solder.
(1) Apply extra solder to each lead.
A
(3) First solder lead as indicated in the figure.
SOLDER
SOLDER
A
(2) As shown in the figure, push the part with tweezers and
alternately melt the solder at each lead. Shift and remove the
chip part.
B
C
(4) Then solder leads B and C.
A
B
C
Note : After removing the part, remove remaining solder from the
pattern.
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No.52005
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