(20” model)
(15” model)
Caution
Be sure to read this manual before servicing. To assure safety from fire, electric shock, injury, harmful radiation
and materials, various measures are provided in this Hitachi liquid crystal television/monitor.
Be sure to read the cautionary items described in the manual to maintain safety before servicing.
Service Warning
1. The LCD Panel Module is made of glass. When handling broken LCD Panel Module, take special care not to
be injured.
2. Replacement work should only start after the LCD Panel Module and the AC/DC Power Supply has become
sufficiently cool.
3. Take special care of the LCD display panel and do not damage its surface.
4. Do not touch the LCD Panel Module with your bare hands and protect its surface from stains.
5. It is recommended to use clean soft gloves during servicing in order to protect the LCD display panel and the
service personnel himself.
Contents
*
SAFETY NOTICE...................................................2
*
*
*
*
*
PRINTED CIRCUIT BOARD........................................21
BLOCK DIAGRAM...............................................27
WIRING DIAGRAM.............................................28
EXPLODED VIEW & MECHANICAL PARTS LIST..........29
INFORMATION OF ICS...............................................31
*
*
*
*
*
*
*
DISPLAY MODES..................................................2
SPECIFICATIONS...................................................3
LOCATION OF CONTROLS......................................4
CONNECTIONS......................................................7
FACTORY SETTTINGS...........................................10
TROUBLESHOOTING..............................................11
SCHEMATIC DIAGRAMS.............................................12
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
Liquid Crystal Display Television/Monitor
July 2005
Digital Media Systems Group, Hitachi Asia Ltd.
SPECIFICATIONS
Model
C15-LC880SNT
C20-LC880SNT
Panel
Size
15.1”
20.1”
Display Size
Pixel Pitch
304.1(H) X 228.1(V)mm 408(H) X 306(V)mm
0.297(H) X 0.297(V)mm 0.51(H) X 0.51(V)mm
Viewing Angle (H/V)
Screen Tilt Angle
<140 / 125
<160 / 140
Front 5 / Rear 15
Frequency
Horizontal
Vertical
Contrast Ratio
Brightness
Display Color
30 ~ 70KHz
50 ~ 75Hz
400:1
400 cd/m2
16.2Million
500 cd/m2
16.7Million
Display Resolution
Input Signal
Optimum Mode
Maximum Mode
800 X 600 @ 70Hz
800 X 600 @ 75Hz
1024 X 768 @ 70Hz
1024 X 768 @ 75Hz
Sync.
H/V Separate, TTL, P. or N.
H/V Composite, TTL, P. or N.
Sync-on-green 0.3 Vp-p, N.
1 Vp-p @ 75 ohm
Video Signal
RGB Signal
0.7Vp-p @ 75 ohm
TV / Video
Color System
Sound System
Video Format
PAL / SECAM / NTSC
DK / I / BG / M
CVBS, S-VIDEO, Y/Pb/Pr
Power Supply
Input
AC 100 - 240Vrms (50Hz / 60Hz)
DC 12V / 4.5A
DC 12V / 5.2A
Output (Adapter)
Power Consumption
Typical
Power Saving
<54W
<3W
<65W
<3W
552 X 460 X 188mm
8.4Kg
390 X 401 X 188mm
5.3Kg
Dimensions (WxHxD)
Weight
Environmental Considerations Operating Temperature
Operatiing Humidity
50 to 104 (10 to 40 )
10% to 80%
13 to 113 (-25 to 45 )
5% to 95%
Storage Temperature
Storage Humidity
Audio Characteristics
Audio Input
Frequency
Response
RCA Jack Red(R) White(L), 0.5 0.3Vrms
RF: 100Hz ~ 12KHz (at 3dB)
AV : 100Hz ~ 13KHz (at 3dB)
Note:
*
*
Design and specifications are subject to change without notice.
Weight and dimensions shown are approximate values only.
- 3 -
LOCATION OF CONTROL
Remote Control
1
3
2
4
5
7
6
8
9
10
11
12
13
15
14
16
15
16
17
12
1. RECALL button
To display setup information of channel
2. MUTE button
To switch on/off sound mute
3. TV/VIDEO button
To select TV, AV1, AV2, S-Video, COMP, VGA or DVI mode
4. STANDBY button
To switch on the LCD TV/monitor when at standby mode or vice versa
5. PICTURE button
To select picture effect mode (Standard/Soft/Custom/Bright)
6. SLEEP button
To on/off sleep mode and set the sleep timer
- 4 -
LOCATION OF CONTROL
7. SOUND button
To select the sound effect mode (Custom/News/Cinema/MusicHall)
8. TIME button
To display the preset time
9. NUMBER buttons
To directly select program number
10.DIGIT button
To select one, two or three-digit program number input options
11. LST-CH button
To return to previously selected program number
12.TELETEXT buttons (OPTIONAL)
These buttons are used for certain models with Teletext functions only. For further details, refer
to the “TELETEXT FUNCTION” section in this manual
13.CH I/II button
To switch between NICAM / A2 stereo and mono sound output
14.TV MENU button
To enter the TV menu directly to tune the programs
15.P-/+ (
) buttons
To select previous / next program and to operate the menu
16. -/+ (
) buttons
To decrease / increase volume and to adjust the menu
17.MENU button
To enter or exit from the MENU (TV/AV mode)
To accept your selection (PC mode)
- 5 -
LOCATION OF CONTROL
Front and Side Panels
For 15” model
1
2
3
4
5
6
7
For 20” model
1
2
3
4
5
7
6
1. TV/VIDEO button
5. STANDBY button
To select TV, AV1, AV2, S-Video,
COMP, VGA or DVI mode
2. MENU button
To switch on when at standby mode or vice
versa
6. POWER INDICATOR
To enter or exit from the menu
3. PROGRAM buttons
To select previous/next program
4 . VOLUME buttons
Lights up in red when the set is on standby;
Lights up in green when the set is power on
7. REMOTE CONTROL SENSOR
Infrared sensor for the remote control
To decrease/increase volume
- 6 -
CONNECTIONS
Connecting The Antenna
Antenna
Note:
*
*
*
Aerial connections: Standard-phono socket 75 or F connector.
Input impedance: 75 unbalanced.
For Australia only -Install an external aerial conforming to AS 1417.1 for safety purpose.
- 7 -
CONNECTIONS
Connecting The PC
STEPS:
1. Switch off all power supplies to the equipment and TV set before connection
2. Connect the signal and audio cables from the computer output terminal to the TV
3. Connect power cord
4. Switch on the TV first, then switch on the computer
5. If the TV still does not function properly, please refer to the troubleshooting section to diagnose
the problem.
*
Please do not open the cover of the TV
Note:
Do not pull the cables. When connecting and disconnecting the cables, do it with your hand holding
the connector.
- 8 -
CONNECTIONS
Connecting AV Equipment
This TV set provides AV1, AV2 input terminals, S-Video and a group of Y/Pb/Pr terminal for connection
’
to VCR, VCD, DVD or other video equipment.
Please refer to the instruction manual of the other equipment for more information on the connection
to the TV.
VIDEO EQUIPMENT
VIDEO EQUIPMENT
VIDEO EQUIPMENT
To Audio
input (AV2)
To Audio
input (AV2)
To Audio
input (AV2)
VIDEO EQUIPMENT
Note:
*
*
Please disconnect all the power supplies to the equipment and TV set before connection.
Do not pull the cables. When connecting and disconnecting the cables, do it with your hand
holding the connector.
*
Only 1 set of audio cable is to be connected to Audio input terminals of AV2.
- 9 -
FACTORY SETTINGS
1. Press MENU button, then press 3210 using the number button on the remote control to enter
into the factory setting.
2. The factory setting menu will be displayed on the screen. The following table is shown when in
AV mode:
Item
1
Factory setting
Basic Setting
C15-LC880SNT
Backlight
C20-LC880SNT
50
NVRAM Addr
NVRAM Val
Auto Adjust
Red
2
Color Setting
0
Green
0
Blue
0
Red Offset
Green Offset
Blue Offset
Min Volume
Max Volume
Dot1 X Pos
Dot1 Y Pos
Dot2 X Pos
Dot2 Y Pos
Brightness
Contrast
Red
Green
Blue
Brightness
Contrast
Red
Green
Blue
Brightness
Contrast
Red
Green
Blue
Brightness
Contrast
Red
0
0
0
0
68
31
69
62
3
4
Sound Setting
81
4200K 5000K Warm
128
128
247
237
237
128
128
255
255
255
128
126
224
228
251
128
128
255
255
255
1
5
6
7
8
STANDARD
COOL
CUSTOM
Green
Blue
Advanced Setting
Factory Mode
Power Mode
Panel Index
Decder SatHue
Enable Zoom
1
34
0
1
1
Enable SCART P 1
Enable DVI Port
1
Factory Reset
9
Version Info
V1.9-C15-LC880SNT
V1.9-C20-LC880SNT
ADDC:V8-L15GC1-A1D01
DDDC:V8-L15GC1-A1D02
ADDC:V8-L20GC1-A1D01
DDDC:V8-L20GC1-A1D02
- 10 -
TROUBLESHOOTING
TV DOES NOT TURN ON
Is the power cord and
DC adapter plugged in?
No
Plug in
Yes
Normal
No
Check LED
LED lights up
Yes
Defective
Replace LED
with a new one
Press Power button
LED light is green
LED light is red
Check inverter PWB unit
Defective
Check MCU(U4)
Defective
Normal
Normal
1. Check MCU (U4)
2. Check CN3 (or
CN7) is connected
3. Check U8 has
VCC voltage
1. Connect the line
of J9 and inverter
2. Replace inverter
with a new one
Replace DRIVE
PWB unit with
a new one
Replace MCU with
a new one
Defective
Check power input system
1. AC adapter
* Normal?
* Connected properly?
2. U9 has +5V?
1. Replace MCU
with a new one.
2. Replace U8
with a new one.
3. U10 has 3.3V?
4. LED controls electrocircuit?
5. JD3 and JD2 are connected?
- 11 -
INFORMATION OF ICS
IC MC78M05 D-PAK
Pin No.
Pin Name
Description
Pin No.
Pin Name
Description
1
2
Input
GND
Output Voltage
3
Output
Output Voltage
IC LM1117DTX-3.3 TO-252
Pin No.
Pin Name
Description
Pin No.
Pin Name
Description
1
2
Input
Output
Output Voltage
3
Adi/GND
Output Voltage
IC LM1084ISX-3.3 TO263
Pin No.
Pin Name
Description
Pin No.
Pin Name
Description
1
2
Input
Output
Output Voltage
3
Adi/GND
Output Voltage
IC LM2596S-5.0 TO-263
Pin No.
Pin Name
Description
Pin No.
Pin Name
Feed Back
ON/OFF
Description
Description
1
2
3
VIN
Output
Ground
4
5
IC SN74CBT3253CDBQR SSOP16
Pin No.
Pin Name
1OE
S1
1B4
1B3
1B2
1B1
1A
GND
Description
Pin No.
9
Pin Name
2A
2B1
2B2
2B3
2B4
S0
2OE
VCC
1
2
3
4
5
6
7
8
10
11
12
13
14
15
16
IC24LC16BT SOIC08
Pin No.
Pin Name
Description
Pin No.
Pin Name
SDA
SCL
WP
VCC
Description
1
2
3
4
A0
A1
A2
VSS
5
6
7
8
IC FDS9933A SO-8
Pin No.
Pin Name
Description
Source Voltage
Gate-Source Voltage
Source Voltage
Pin No.
Pin Name
Description
1
2
3
4
S1
G1
S2
G2
5
6
7
8
D2
D2
D1
D1
Drain-Source Voltage
Drain-Source Voltage
Drain-Source Voltage
Drain-Source Voltage
Gate-Source Voltage
IC 24AA02 SOIC08
Pin No.
Pin Name
Description
Pin No.
Pin Name
SDA
SCL
WP
VCC
Description
1
2
3
4
A0
A1
A2
VSS
5
6
7
8
- 31 -
INFORMATION OF ICS
IC FSAV330 QS0P16
Pin No.
Pin Name
Description
Pin No.
9
Pin Name
3A
3B2
3B1
4A
4B2
4B1
OE
VCC
Description
1
2
3
4
5
6
7
8
S
1B1
1B2
1A
2B1
2B2
2A
GND
10
11
12
13
14
15
16
IC 74LCX14 S0IC14
Pin No.
Pin Name
Description
Inputs
Outputs
Inputs
Outputs
Inputs
Outputs
Inputs
Pin No.
Pin Name
O3
I3
O4
I4
O5
I5
Description
Outputs
Inputs
Outputs
Inputs
Outputs
Inputs
1
2
3
4
5
6
7
I0
O0
I1
O1
I2
O2
GND
8
9
10
11
12
13
14
VCC
IC SST39SF020A PLCC32
Pin No.
Pin Name
AMS1- A0
DQ7-DQ0
CE#
Description
Address Inputs
Data Input/output
Chip Enable
Pin No.
Pin Name
WE#
VDD
VSS
NC
Description
1
2
3
4
5
6
7
8
Write Enable
Power Supply
Ground
OE#
Output Enable
No Connection
IC GM5221 PQFP-208 (DVI Input Port)
Pin No.
Pin Name
Description
113
AVDD_IMB_3.3
Analog VDD(3.3V) for internal biasing gircuits. Must be bypassed with
capacitors
114
115
116
117
REXT
External termination resistor.
A 1% 250Ω, resistor should by connected from this pin to AVDD_IMB
Analog GND for internal biasing circuits. Must be connected directly to
the ground plane.
AGND_IMB
VDD_RX2_1.8
AGMD_RX2
VDD(1.8V) for TMDS input pair 2.
Must be bypassed with external capacitor to GND_RX2.
Analog GND for TMDS input pair 2. Must be connected directly to the
analog ground plane.
118
119
120
RX2+
RX2-
TMDS input pair2
TMDS input pair2
AVDD_RX2_3.3 Analog VDD(3.3V) for TMDS input pair 2. Must be bypassed with
capacitor to AGND_RX2.
121
122
VDD_RX1_1.8 VDD(1.8V) for TMDS input pair 2. Must be bypassed with external
capacitor to GND_RX1.
AGND_RX1
Analog GND for TMDS input pair 1. Must be connected directly to the
analog ground plane.
TMDS input pair 1
TMDS input pair 1
123
124
125
RX1+
RX-
AVDD_RX1_3.3 Analog VDD (3.3V) for TMDS input pair 2. Must be bypassed with to
AGND_RX1.
- 32 -
INFORMATION OF ICS
IC GM5221 PQFP-208 (DVI Input Port)
Pin No.
Pin Name
VDD_RX0_1.8
Description
VDD (1.8V) for TMDS input pair 2. Must be bypassed with external
capacitor to GND_RX0
126
127
AGND_RX0
Analog GND for TMDS input pair 0. Must be connected directly to the
analog ground plane.
128
129
130
RX0+
RX0-
TMDS input pair 0
TMDS input pair 0
AVDD_RX0_3.3 Analog VDD (3.3V) for TMDS input pair 2. Must be bypassed with
capacitor to AGND_RX0
131
AGND_RXC
Analog GND for TMDS input clock pair. Must be connected directly to
the analog ground plane.
132
133
134
RXC+
RXC-
TMDS input clock pair
TMDS input clock pair
AVDD_RXC_3.3 Analog VDD (3.3V) for TMDS input clock pair.
Must be bypassed with 100pF capacitor to AGND_RXC.
136
137
138
GND_RXPLL
Analog GND for the TMDS receiver internal PLL.
Must be connected directly to the analog ground plane.
VDD_RXPLL_1.8 Analog VDD (1.8V) for the TMDS receiver internal PLL.
Must be bypassed with a capacitor to AGND_RXPLL.
CLK_OUT
Reserved, unconnected.
IC GM5221 PQFP-208 (RCLK PLL Pins)
Pin No.
Pin Name
Description
165
GND_RPLL
Digital GND for ADC clocking circuit. Must be directly connected to the
digital system ground plane.
166
168
VDD_RPLL_1.8 Digital power (1.8V) for ADC digital logic. Must be bypassed with
capacitor to GND1_ADC.
AGND_RPLL
Analog ground for the Reference DDS PLL. Must be directly connected
to the analog system ground plane.
169
170
171
XTAL
TCLK
Crystal oscillator output.
Reference clock (TCLK) from the 14.3MHz crystal oscillator.
AVDD_RPLL_3.3 Analog VDD (3.3V)
IC GM5221 PQFP-208 (Input Video Port)
Pin No.
Pin Name
VCLK
Description
Video port data clock input. Up to 75Mhz
[Input, 5V-tolerant]
112
111
110
109
108
107
106
103
102
GPIO23/VDATA0 Input YUV data in 8-bit BT656 or GPIO23:16 if VPORT is disabled.
GPIO22/VDATA1 [Bi-Directional, 5V-tolerant]
GPIO21/VDATA2
GPIO20/VDATA3
GPIO19/VDATA4
GPIO18/VDATA5
GPIO17/VDATA6
GPIO16/VDATA7
- 33 -
INFORMATION OF ICS
IC GM5221 PQFP-208 (Analog Input Port)
Pin No.
Pin Name
Description
141
AVDD_BLUE_3.3 Analog power (3.3V) for the blue channel. Must be bypassed with
capacitor to AGND_BLUE pin on system board.
142
143
144
BLUE+
BLUE-
AGND_BLUE
Positive analog input for Blue channel.
Negative analog input for Blue channel.
Analog ground for the blue channel. Must be directly connected to the
analog system ground plane.
145
146
AVDD_GREEN_3.3 Analog power (3.3V) for the green channel. Must be bypassed with
capacitor to AGND_GREEN pin on system board.
SOG_MCSS
Dedicated Sync-on-Green pin.
NOTE: This pin requires the same AC-couple capacitor (if applicable)
like the regular RGB input pins.
147
148
GREEN+
GREEN-
Positive analog input for Green channel.
Negative analog input for Green channel.
NOTE: For SOG support this pin should be pulled down to GND
through a 1MΩ, resistor.
149
150
AGND_GREEN Analog ground for the green channel. Must be directly connected to the
analog system ground plane.
AVDD_RED_3.3 Analog power (3.3V) for the red channel. Must be bypassed with
capacitor to AGND_RED pin on system board.
151
152
153
RED+
RED-
AGND_RED
Positive analog input for Red channel.
Negative analog input for Red channel.
Analog ground for the red channel. Must be directly connected to the
analog system ground plane.
154
AVDD_ADC_3.3 Analog power (3.3V) for ADC Analog blocks that are shared by all three
channels. Includes bandgap reference, master biasing and full scale
adjust. Must be bypassed with capacitor th AGND_ADC pin on system
board.
156
AGND_ADC
Analog ground for ADC analog blocks that are shared by all three
channels. Includes bandgap reference, master biasing and full scale
adjust. Must be directly connected to analog system ground plane.
Digital GND for ADC clocking circuit. Must be directly connected to the
digital system ground plane.
163
164
181
182
GND1_ADC
VDD1_ADC_1.8 Digital power (1.8V) for ADC encoding logic. Must be bypassed with
capacitor to GND1_ADC pin on system board.
HSYNC/CSYNC ADC input horizontal sync or composite sync input.
[Input, Schmitt trigger with 1V hysteresis and 1.65V threshold. 5V-tolerant]
VSYNC
ADC input vertical sync.
[Input, Schmitt trigger with 1V hysteresis and 1.65V threshold. 5V-tolerant]
- 34 -
INFORMATION OF ICS
IC GM5221 PQFP-208 (System Interface)
Pin No.
Pin Name
Description
81
GPIO0
General-purpose input/output signals
82
GPIO1
[Bi-directional, Schmitt trigger, 5V-tolerant]
83
GPIO2
84
GPIO3
85
GPIO4
88
GPIO5
89
GPIO6
90
91
92
93
GPIO7/IRQin
GPIO8/IRQout
GPIO9/SCL
GPIO10/SDA
General-purpose input/output signals [Bi-directional, Schmitt trigger, 5V-
tolerant] or OCM interrupt and chip status.
General-purpose input/output signals [Bi-directional, Schmitt trigger, 5V-
tolerant] or master device on serial interface bus.
98
GPIO11/PWM0 General-purpose input/output signals or PWM signals. [Bi-directional,
99
GPIO12/PWM1 Schmitt trigger, 5V-tolerant]
GPIO13/PWM2
GPIO14/PWM3
100
101
69
GPIO15
General-purpose input/output signals [Bi-directional, Schmitt trigger, 5V-tolerant]
77
DDC_SCL_VGA DDC2Bi clock for VGA Port
78
79
DDC_SDA_VGA DDC2Bi data for VGA Port [internal 10KΩ, pull-up resistor]
DDC_SCL_DVI DDC2Bi and HDCP clock for DVI Port
80
DDC_SDA_DVD DC2Bi and HDCP data for DVI Port [internal 10KΩ, pull-up resistor]
178
RESETn
Hardware Reset (active low) [Schmitt trigger, 5V-tolerant] Connect to
ground with 0.01uF (or larger) capacitor. See section, Chip
Initialization, for detail
172
173
174
175
176
177
71
LBADC_VDD_3.3 Analog 3.3V power supply for general-purpose ADC
LBADC_IN1
LBADC_IN2
LBADC_IN3
LBADC_RETURN
LBADC_GND
LBADC channel 1
LBADC channel 2
LBADC channel 3
Analog Ground (signal return path) for LBADC channels 1, 2 and 3
Ground
HOST_SCL/UART_DI Host input clock or 186 UART Data In or JTAG clock signal. [Input,
Schmitt trigger, 5V-Tolerant]
72
HOST_SCL/UART_DO Host input data or 186 UART Data out or JTAG mode signal.
[Bi-directional, Schmitt trigger, slew rate limited, 5V-Tolerant]
JTAG_TDI JTAG Data input signal.
66
64
56
JTAG_TDO
JTAG data output signal.
JTAG reset signal.
JTAG_RESET
- 35 -
INFORMATION OF ICS
IC GM5221 PQFP-208 (LVDS Display Interface)
Pin No.
Pin Name
AVDD_LV_E_3.3
AVSS_LV_E
CH3P_LV_E
CH3N_LV_E
CLKP_LV_E
CLKN_LV_E
CH2P_LV_E
CH2N_LV_E
CH1P_LV_E
CH1N_LV_E
CH0P_LV_E
CH0N_LV_E
AVSS_LV_E
AVDD_LV_E_3.3
AVSS_LV
Description
Digital Power for LVDS outputs. Connect to digital 3.3V supply.
Ground for LVDS outputs.
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
67
68
43
44
45
46
47
48
49
Ground for LVDS outputs.
Digital Power for LVDS outputs. Connect to digital 3.3V supply.
Ground for LVDS outputs.
AVDD_LV_3.3
Analog Power for LVDS outputs. Connect to analog 3.3V supply.
AVDD_LV_O_3.3 Digital Power for LVDS outputs. Connect to digital 3.3V supply.
AVSS_LV_O
CH3P_LV_O
CH3N_LV_O
CLKP_LV_O
CLKN_LV_O
CH2P_LV_O
CH2N_LV_O
CH1P_LV_O
CH1N_LV_O
CH0P_LV_O
CH0N_LV_O
AVSS_LV_O
Ground for LVDS outputs.
Ground for LVDS outputs.
AVDD_LV_O_3.3 Digital Power for LVDS outputs. Connect to digital 3.3V supply.
PPWR
PBIAS
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
Panel Power Control [Tri-state output, 5V-tolerant]
PANEL Bias Control (backlight enable) [Tri-state output, 5V- tolerant]
Reserved, unconnected.
Reserved, unconnected.
Reserved, unconnected.
Reserved, unconnected.
Reserved, unconnected. (Display Enable for TTL interface)
Reserved, unconnected. (Display Horizontal Sync for TTL interface)
Reserved, unconnected. (Display Vertical Sync for TTL interface)
- 36 -
INFORMATION OF ICS
IC GM5221 PQFP-208 (TTL Display Interface)
Pin No.
Pin Name
AVDD_LV_E_3.3
AVSS_LV_E
ER0
ER1
ER2
ER3
ER4
ER5
ER6
ER7
EG0
EG1
AVSS_LV_E
AVDD_LV_E_3.3
AVSS_LV
AVDD_LV_3.3
Description
Analog Power for TTL outputs. Connect to analog 3.3V supply
Ground
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
43
44
45
46
47
48
49
55
67
68
Red channel bit 0
Red channel bit 1
Red channel bit 2
Red channel bit 3
Red channel bit 4
Red channel bit 5
Red channel bit 6
Red channel bit 7
Green channel bit 0
Green channel bit 1
Ground for TTL outputs.
Not used.
Not used.
Red channel bit 0
Red channel bit 1
Red channel bit 2
Red channel bit 3
Red channel bit 4
Red channel bit 5
Not used.
Not used.
Digital Power for TTL outputs. Connect to digital 3.3V supply.
Ground for TTL outputs.
Digital Power for TTL outputs. Connect to digital 3.3V supply.
AVDD_LV_O_3.3 Digital Power for TTL outputs. Connect to digital 3.3V supply.
AVSS_LV_O
EG2
EG3
EG4
EG5
EG6
EG7
EB0
EB1
EB2
EB3
AVSS_LV_O
Ground for TTL outputs.
Green channel bit 2
Green channel bit 3
Green channel bit 4
Green channel bit 5
Green channel bit 6
Green channel bit 7
Blue channel bit 0
Blue channel bit 1
Blue channel bit 2
Blue channel bit 3
Ground
Green channel bit 0
Green channel bit 1
Green channel bit 2
Green channel bit 3
Green channel bit 4
Green channel bit 5
Not used.
Not used.
Blue channel bit 0
Blue channel bit 1
AVDD_LV_O_3.3 Digital Power for TTL outputs. Connect to digital 3.3V supply.
EB4
EB5
EB6
Blue channel bit 4
Blue channel bit 5
Blue channel bit 6
Blue channel bit 7
Display Enable
Blue channel bit 2
Blue channel bit 3
Blue channel bit 4
Blue channel bit 5
EB7
DEN
DHS
DVS
DCLK
PPWR
PBIAS
Display Horizontal Sync.
Display Vertical Sync.
Display Pixel Clock.
Panel Power Control [Tri-state output, 5V-tolerant]
Panel Bias Control (backlight enable) [Tri-state output, 5V-tolerant]
- 37 -
INFORMATION OF ICS
IC GM5221 PQFP-208 (Miscellaneous)
Pin No.
Pin Name
ROM-DATA3
ROM-DATA2
ROM-DATA1
ROM-DATA0
ROM-OEn
ROM-WEn
ROM-CSN
CRVSS
Description
1
2
3
4
5
6
7
External ROM DATA3
External ROM DATA2
External ROM DATA1
External ROM DATA0
External ROM Output Enable
External ROM Write Enable
External ROM Crip Select Enable
Ground for cord power
8,42,51,
74,76,87,
94,97,
140,180
9,41,75,
86,96,
139,179
CVDD_18 Cord
Digital power. Connect to digital 1.8V supply.
Reserved, unconnected
10,57,58, RESERVED
59,60,61,
62,63,65,
70,135,
155,167
50,73,95 RVDD_33
52,53,54, N.C.
104,105,
Ring VDD power. Connect to digital 3.3V supply
No connected
157,158,
159,160,
161,162
- 38 -
INFORMATION OF ICS
IC SAA5264PS/M3/0104 SDIP52
Pin No.
Pin Name
PWM
Description
Output for 14-bit high precision Pulse Width Modulator(PWM)
Output for 6-bit PWMs 0 to 6
1
2
3
4
5
6
7
8
PWM0
PWM1
PWM2
PWM3
PWM4
PWM5
PWM6
ADC0
9
Inputs for the software Analog-to-Digital-Converter(ADC) facility
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
ADC1
ADC2
ADC3
VSCC
SCL(NVRAM)
SDA(NVRAM)
Core ground
I2C-bus Serial Clock input to Non-Volatile RAM
I2C-bus Serial Data input/output (Non-Volatile RAM)
Input/output for general use
Input/output for general use
Input/output for general use
8mA current sinking capability for direct drive of Light Emitting
Diodes (LEDs)
Input/output for general use
Analog ground
Composite Video Baseband Signal(CVBS) input; a positive-going
1 V (peak-to peak) input is required; connected via a 100 nF capacitor
VSSA
CVBS0
CVBS1
SYNC_FILTER Sync-pulse-filter input for CVBS; this pin should be connected to VSSA
via a 100nF capacitor
26
27
IREF
Reference current input for analog circuits; for correct operation a
24kΩ resistor should be connected to VSSA
Frame de-interlace output synchronized with the VSYNC pulse to
produce a non-interlaced display by adjustment of the vertical
deflection circuits
FRAME
28
29
TEST
COR
Not avallable; connect this pin to VSSA
Contrast reduction:open-drain, active LOW output which allows selective
contrast reduction of the TV picture to enhance a mixed mode display
Output for 6-bit PWM7
Analog supply voltage (3.3V)
Blue colour information pixel rate output
Green colour information pixel rate output
Red colour information pixel rate output
Video/data switch push-pull output for pixel rate fast blanking
Horizontal sync pulse input: Schmitt triggered for a Transistor Transistor
Lever(TTL) version; the polarity of this pulse is programmable by
register bit TXT1.H POLARITY
30
31
32
33
34
35
36
PWM7
VDDA
B
G
R
VDS
HSYNC
- 39 -
INFORMATION OF ICS
IC SAA5264PS/M3/0104 SDIP52
Pin No.
Pin Name
VSYNC
Description
Vertical sync pulse input; Schmitt triggered for a TTL version; the
polarity of this pulse is programmable by register bit TXT1. V POLARITY
Periphery ground
Core supply voltage (+3.3V)
Crystal oscillator ground
12 MHz crystal oscillator input
12 MHz crystal oscillator output
Reset input; if this pin is HIGH for at least 2 machine cycles (24 oscillator
periods) while the oscillator is running, the device resets; this pin
should be connected to VDDP via a capacitor
Periphery supply voltage (+3.3V)
37
38
39
40
41
42
43
VSSP
VDDC
OSCGND
XTALIN
STALOUT
RESET
44
45
46
47
48
49
50
51
52
VDDP
Input/output for general use
Input/output for general use
Input/output for general use
Input/output for general use
SCL
SDA
I2C-bus Serial Clock input from application
I2C-bus Serial Data input/output (application)
Input/output for general use
Input/output for general use
IC TPA1517NE DIP20
Pin No.
Pin Name
Description
IN1 is the audio input for channel 1.
SGND is the input signal ground reference.
SVRR is the midrail bypass.
OUT1 is the audio output for channel1.
PGND is the power ground reference.
1
2
3
4
5
6
7
8
IN1
SGND
SVRR
OUT1
PGND
OUT2
VCC
OUT2 is the audio output for channel 2.
VCC is the supply voltage input.
M/SB
M/SB is the mute/standby mode enable. When held at less than 2 V,
this signal enables the TPA1517 for standby operation. When held
between 3.5V and 8.2V,this signal enables the TPA1517 for mute
operation. When held above 9.3V, the TPA1517 operates normally.
IN2 in the audio input for channel 2.
9
IN2
10-20
GND/HS
GND/HS are the ground and heatsink connections. All GND/HS
terminals are connected directly to the mount pad for thermal-enhanced
operation.
IC TVP5146PFP S-PQFP-G80 (Clock Signals)
Pin No.
40
Pin Name
DATACLK
XTAL1
Description
Line-locked data output clock.
74
External clock reference input. it may be connected to an external
oscillator with a 1.8V compatible clock signal or a 14.31818-MHz
crystal oscillator.
75
XTAL2
External clock reference output. Not connected if XTAL1 is driven by an
external single-ended oscillator.
- 40 -
INFORMATION OF ICS
IC TVP5146PFP S-PQFP-G80 (Analog Video)
Pin No.
Pin Name
VI_1_A
VI_1_B
VI_1_C
VI_2_A
VI_2_B
VI_2_C
VI_3_A
VI_3_B
VI_3_C
VI_4_A
Description
80
1
2
7
8
VI_1_x: Analog video input for CVBS/Pb/B/C
VI_2_x: Analog video input for CVBS/Y/G
VI_3_x: Analog video input for CVBS/Pr/R/C
VI_4_x: Analog video input for CVBS/Y
Up to 10 composite, 4 S-video, and 2 composite or 3 component
video input(or a combination thereof) can be supported.
The inputs must be ac-coupled. The recommended coupling
capacitor is 0.1μF.
9
16
17
18
23
The possible input configurations are listed in the input select
register at I2C subaddress 00h
IC TVP5146PFP S-PQFP-G80 (Digital Video)
Pin No.
57,58
59,60,
63,64,
65,66,
69,70
58
Pin Name
C[9:0]/
GPIO[9:0]
Description
Digital video output of CbCr, C[9] is MSB and C[0] is LSB. Unused
outputs can be left unconnected. Also, these terminals can be
programmable general-purpose I/O.
For the 8-bit mode, the two LSBs are ignored.
D_BLUE
D_GREEN
D_RED
FSO
Digital BLUE input from overlay device.
Digital GREEN input from overlay device.
Digital RED input from overlay device.
Fast-switch overlay between digital RGB and any video.
Digital video output of Y/YCbCr, Y[9] is MSB and Y[0] is LSB.
For the 8-bit mode, the two LSBs are ignored. Unused outputs
can be left unconnected.
59
60
57
43,44
45,46,
47,50,
51,52,
53,54
Y[9:0]
IC TVP5146PFP S-PQFP-G80 (Miscellaneous Signals)
Pin No.
Pin Name
Description
35
FSS/GPIO
Fast-switch(blanking) input. Switching signal between the synchronous
component video(YPbPr/RGB) and the composite video input.
Programmable general-purpose I/O
37
GLCO/I2CA
Genlock control output(GLCO). Two Genlock data formats are available:
TI format and real time control(RTC) format.
During reset, this terminal is an input used to program the I2C address LSB.
Interrupt request
30
33
34
INTREQ
PWDN
RESETB
Power down input: 1=Power down 0=Normal mode
Reset input, active low
IC TVP5146PFP S-PQFP-G80 (Host Interface)
Pin No.
Pin Name
SCL
SDA
Description
28
29
I2C clock input
I2C data bus
- 41 -
INFORMATION OF ICS
IC TVP5146PFP S-PQFP-G80 (Power Supply)
Pin No.
26
13
12
79
10
15
24
78
11
14
25
3
Pin Name
AGND
Description
Analog ground. Connect to analog ground.
Analog 1.8-V return
A18GND_REF
A18VDD_REF
CH1_A18GND
CH2_A18GND
CH3_A18GND
CH4_A18GND
CH1_A18GND
CH2_A18GND
CH3_A18GND
CH4_A18GND
CH1_A33GND
CH2_A33GND
CH3_A33GND
CH4_A33GND
CH1_A33VDD
CH2_A33VDD
CH3_A33VDD
CH4_A33VDD
Analog power for reference 1.8V
Analog 1.8-V return
Analog power. Connect to 1.8 V.
Analog 3.3-V return
6
19
22
4
5
20
21
Analog power. Connect to 3.3 V.
27,32,42 DGND
56,68
Digital return
31,41,55 DVDD
67
Digital power. Connect to 1.8 V.
39,49,62 IOGND
38, 48,61 IOVDD
Digital power return
Digital power. Connect to 3.3 V or less for reduced noise.
Analog power return
77
76
PLL_A18GND
PLL_A18VDD
Host Interfacewer. Connect to 1.8 V.
IC TVP5146PFP S-PQFP-G80 (Sync Signals)
Pin No.
Pin Name
HS/CS/GPIO
Description
Horizontal sync output or digital composite sync output Programmable
general-purpose I/O
72
73
71
36
VS/VBLK/GPIO Vertical sync output (for modes with dedicated VSYNC) or VBLK
output Programmable general-purpose I/O
FID/GPIO
Odd/even field indicator output. This terminal needs a pulldown resistor.
Programmable general-purpose I/O
AVID/GPIO
Active video indicator output
Programmable general-purpose I/O
- 42 -
REPLACEMENT PARTS LIST
The following service parts list are available for purchase.
Serviceman may quote the components shown in this page for servicing purposes.
PRODUCT SAFETY NOTE : Critical parts that have special safety characteristics are identified by a
in
the replacement parts list or the schematic diagrams. Use of any substitute replacement part that does not have
the same safety characteristics as the recommended replacement part in the parts list might create shock, fire
and/or other hazards.
Please do not degrade the safety of this TV through improper servicing.
Cxx-LC880SNT
Part No.
Description
15”
20”
PCB ASSEMBLY
G771-15LB01-01
G771-15LB02-01
G771-15LB03-01
G771-20LB01-01
G771-20LB02-01
G771-20LB03-01
G771E15LB01-01
G771E20LB01-01
G7801-001001
Control Keys PCB Ass’y
15” Receiver PCB Ass’y
Tuner PCB Ass’y
Control Keys PCB Ass’y
20” Receiver PCB Ass’y
Tuner PCB Ass’y
Main PCB Ass’y
Main PCB Ass’y
PCB Ass’y Power BL1504015-06A
PCB Ass’y Power BL2006009-07
G7801-002001
SUPPLIED ACCESSORIES
G7101-001001
G7101-002001
AC Adaptor SAWA-01-451
AC Adaptor SAWA-02-521
Remote Control CLE-968
G7501-001001
LCD PANEL
G6203-001001
G6203-002001
Display LCD LTM150XH-L06
Display LCD A20SN02-PV4
- 43 -
PARTS LIST (FOR REFERENCE ONLY)
The components shown in the remaining pages served as a reference only. It is not meant for ordering
of components for servicing purposes. Do not quote any components from these lists.
MAIN PCB ASSEMBLY
Item
Part No.
G1102-001001
G1102-001002
G1102-002001
G1107-001001
G1301-001006
Description
Circuit No.
1
2
3
4
5
COIL FIX C 120K T04 0603
COIL FIX C 2R7K T04 0603
COIL FIX C 3R3K T08 1206
COIL FIX 33uH 16.5X9 24.5T
CAPACITOR EC V A SMA 220M
16DC T05 4X7
L47
L34 L35 L36
L48 L49 L50
L15
C102 C18 C233 C29 C38 C48
C73 C75 CA1 CA5 CA7 CB10
CB9
6
7
8
9
G1301-001018
G1301-001019
G1301-001021
G1301-001024
CAPACITOR EC V A SMA 100M
16DC T05 4X7
CAPACITOR EC V A SMA 3R3M
50DC T05 4X7
CAPACITOR EC V A SMA 2R2M
50DC T05 4X7
CAPACITOR EC V A SMA 100M
25DC T05 4X7
C168 CA50
CA20
CA40
C12 C13 C14 C3 CA16 CA23
CA25 CA30 CA31 CA34 CA35
CA48
10
11
12
13
14
15
16
17
18
19
20
21
G1301-001026
G1301-001031
G1301-001111
G1301-002015
G1323-001013
G1323-001024
G1323-001026
G1323-001027
G1323-001029
G1323-001035
G1323-001038
G1323-001083
CAPACITOR EC V A SMA 101M
16DC T05 6X7
CAPACITOR EC V A SMA 470M
16DC T05 5X7
CAPACITOR EC V A SMA 331M
16DC T05 8X9
CAPACITOR EC V A SAII 471M
25DC T05 8X14
CAPACITOR CE C TC CG331J
50DC T04 0603
CAPACITOR CE C TC CG150J
50DC T04 0603
CAPACITOR CE C TC CG330J
50DC T04 0603
CAPACITOR CE C TC CG470J
50DC T04 0603
CAPACITOR CE C TC CG221J
50DC T04 0603
CAPACITOR CE C TC CG220J
50DC T04 0603
CAPACITOR CE C TC CG560J
50DC T04 0603
CAPACITOR CE C TC CH5R0J
C104 C105 C110 C111 C125
C236 C237 C78 C94 C95 CA54
CB1
C82 C83
C79 CA13 CA43 CA9
C127 C141 C148 C164 CA32
CA41 CA61 CA65
C169 C170 C171
C117 C118
C229 C230 C231 C232 C76
CA14 CA15 CA51
C46 C47 C55 C64 C66
C88 CA37 CA38
CA18 CA33 CB2 CB3
C58 C59
50DC T04 0603
CB4 CB5 CB6 CB7 CB8
- 44 -
C15-LC880SNT & C20-LC880SNT
SC No. 0013E
Copyright Digital Media Systems Group, (2005) All rights reserved
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