Sony Car Stereo System XR C6100 User Manual

XR-C6100  
SERVICE MANUAL  
Saudi Arabia Model  
Dolby noise reduction manufactured under license  
from Dolby Laboratories Licensing Corporation.  
“DOLBY” and the double-D symbol a are trade-  
marks of Dolby Laboratories Licensing Corporation.  
Model Name Using Similar Mechanism  
Tape Transport Mechanism Type  
NEW  
MG-25F-136  
SPECIFICATIONS  
– Continued on next page –  
FM/MW/SW CASSETTE CAR STEREO  
MICROFILM  
Pin No.  
Pin Name  
I/O  
Function  
Loading/tape operation motor control signal output to the LB1638M (IC361)  
(For the eject direction and reverse side operation) *1  
37  
LM EJ  
O
Forward/reverse direction control signal output to the CXA2510AQ (IC301)  
“L: forward direction, “H”: reverse direction  
38  
N/R OUT  
O
39  
40  
41  
42  
43  
44  
P.ON  
CM ON  
TAPEON  
COLSEL  
RC IN1  
TEST  
O
O
O
I
Polar stereo detection signal output terminal “H”: polar stereo Not used (open)  
Capstan/reel motor (M901) drive signal output terminal “H”: motor on  
Tape system power supply on/off control signal output terminal “H”: tape on  
Setting terminal for the illumination color “L”: amber, “H”: green (fixed at “H”)  
Rotary remote commander shift key A/D input terminal  
I
I
Setting terminal for the test mode “L”: test mode (normally fixed at “H”)  
Power supply on/off control signal output terminal at the illumination and liquid crystal display  
driver (IC901) “H”: power on  
At power select switch (S501) on mode: “H” output at the accessory on  
At power select switch (S501) off mode: “H” output at the power on  
45  
ILL ON  
O
46  
47  
48  
49  
50  
51  
52  
53  
BEEP  
MUT  
O
O
O
O
O
O
O
O
Beep sound signal output terminal  
Line muting control signal output terminal “H”: line muting on  
Chip enable signal output to the electrical volume (IC161)  
Chip enable signal output terminal Not used in this set (open)  
Serial data transfer clock signal output to the electrical volume (IC161)  
Serial data transfer clock signal output terminal Not used in this set (open)  
Serial data output to the electrical volume (IC161)  
VOLCE  
SUBCE  
VOLCKO  
SUBCKO  
VOLSO  
TAPMUT  
Tape muting on/off control signal output to the CXA2510AQ (IC301) “H”: tape muting on  
Dolby control in/out terminal  
At initial mode: valid/invalid selection input of dolby function (“L” input: valid)  
At normal mode: dolby on/off control signal output to the CXA2510AQ (IC301)  
“H”: dolby on  
54  
DOLON  
I/O  
Dolby B/C selection control in/out terminal  
At initial mode: dolby B only/dolby B and C type selection input (“L” input: dolby B and C)  
At normal mode: dolby type selection signal output “L”: dolby B, “H”: dolby C  
Not used this function (fixed at “H”)  
55  
56  
DOLBC  
AMSIN  
I/O  
I
Whether a music is present or not from CXA2510AQ (IC301) is detected at auto music sensor  
“L”: music is present, “H”: music is not present  
METAL control in/out terminal  
At initial mode: auto/manual mode selection input of METAL function “L”: manual mode  
At manual mode: METAL on/off control signal output to the CXA2510AQ (IC301)  
“H”: METAL on  
57  
MTLSEL  
I/O  
At auto mode: input at MTLIN (pin )  
58  
59  
AD ON  
O
I
Power supply on/off control signal output for the A/D converter “L”: power on  
Internal RAM reset detection signal input from the RN5VD23AA (IC651)  
Input terminal to check that RAM data are not destroyed due to low voltage  
This checking is made within 100 msec after reset  
RAMBU  
System reset signal input from the reset signal generator (IC652) and reset switch (S503)  
“L” is input for several 100 msec after power on, then it changes to “H”  
60  
RESET  
I
61  
62  
63  
64  
65  
66  
SIRCS  
BU IN  
I
I
I
I
I
I
Sircs signal input from the remote control receiver (IC902)  
Battery detect signal input terminal “H”: battery on  
PW SEL  
ACCIN  
Power select switch (S501) input terminal “L”: off (halt mode), “H”: on (operation mode)  
Accessory detect signal input terminal “L”: accessory on  
NOSESW  
TELMUT  
Detects the removal of the attaching and removing type front panel block “L”: attaching  
Telephone muting signal input terminal At input of “L”, the signal is attenuated by –20 dB  
– 18 –  
Pin No.  
Pin Name  
I/O  
Function  
Input of acknowledge signal for the key entry Acknowledge signal is input to accept function  
and eject keys in the power off status On at input of “H”  
67  
KEYACK  
I
68  
69  
70  
71  
72  
73  
74  
75  
VDD  
X OUT  
X IN  
O
I
Power supply terminal (+5V)  
Main system clock output terminal (5 MHz)  
Main system clock input terminal (5 MHz)  
Ground terminal  
GND  
O
I
XT OUT  
XT IN  
AVDD  
AVREF0  
Sub system clock output terminal (32.768 kHz)  
Sub system clock input terminal (32.768 kHz)  
Power supply terminal (+5V) (for A/D converter)  
Reference voltage input terminal (+5V) (for A/D converter)  
I
Key input terminal (A/D input)  
OFF, SOURCE, MODE *, SEEK AMS + + ), SEEK AMS = 0 –, VOLUME –,  
SEL, VOLUME +, DSPL, ATT keys input (LSW901 to LSW910)  
76  
77  
KEYIN0  
KEYIN1  
I
I
Key input terminal (A/D input)  
6, INTRO 1, REPEAT 2, SHUF/a 3, BL SKIP 6, ATA 5, BANK/MTL 4, BTM LCL, FILE,  
PRESET DISC +/– keys input (LSW921 to LSW931)  
78  
79  
80  
D-BASS  
VSM  
I
I
I
D-BASS switch (SW951) input (A/D input)  
FM and AM signal meter voltage detection input from the FM/AM tuner unit (TU1)  
Setting terminal for the key (fixed at “L”)  
KEYSEL  
*1 loading/tape operation motor control  
MODE  
STOP  
LOADING/  
FORWARD  
EJECT/  
REVERSE  
BRAKE  
TERMINAL  
LM LOD (pin )  
“L”  
“L”  
“H”  
“L”  
“L”  
“H”  
“H”  
“H”  
LM EJ (pin )  
– 19 –  
XR-C6100  
6-4. SCHEMATIC DIAGRAM – MAIN Section (1/2) – See page 31 and 32 for IC Block Diagrams.  
– 23 –  
– 24 –  
XR-C6100  
6-5. SCHEMATIC DIAGRAM – MAIN Section (2/2) – See page 32 for IC Block Diagramas.  
• Waveforms  
1 IC1 1 (XO)  
4.2 Vp-p  
7.2 MHz  
2 IC501 (XOUT)  
4.6 Vp-p  
5 MHz  
3 IC501 &™ (XT_OUT)  
5 Vp-p  
32.768 kHz  
– 25 –  
– 26 –  
XR-C6100  
6-7. SCHEMATIC DIAGRAM – PANEL Section –  
– 29 –  
– 30 –  
• IC Block Diagrams  
– MAIN BOARD –  
IC1 BU2624F-E2  
IC301 CXA2510AQ-T4  
20 VSS  
19 PD1  
1
2
XOUT  
XIN  
REFERENCE  
DIVIDER  
30  
29 28 27 26  
25  
24  
23 22 21  
NR  
PHASE  
DETECT  
120µ/  
70µ  
T2  
+
18 VDD  
20  
MSMODE  
19 DRSW  
18  
+
NR BIAS  
TAPE/AUX  
TAPE EQ  
FWD/RVS  
VCC  
MS  
MODE  
PBFB1 31  
X1  
I/O  
CONTROL  
PBRIN1 32  
3
4
CE  
CK  
TAPESW  
17  
16  
FMIN  
AMIN  
F2  
33  
34  
PBREF1  
PBFIN1  
17 INSW  
NR  
MODE  
16 NRSW  
5
6
DA  
CD  
MAIN  
COUNT  
VCT 35  
VCT  
15 NC  
PBGND  
36  
MS ON/  
OFF  
+
LPF  
+
DETECT  
SHIFT  
REGISTER  
LATCH  
7
8
PRESCALLER  
P0  
P1  
P3  
P4  
14 MSOUT  
13 DGND  
37  
PBFIN2  
F3  
F1  
15  
P2  
PBREF2 38  
X1  
PBRIN2  
PBFB2  
39  
40  
14 IF1  
12 MSTC  
11 FF  
+
IF COUNT  
CONTROL  
9
+
OFF/B  
NR  
T1  
120µ/  
70µ  
10  
13  
20BIT COUNT  
IF2  
2
3
4
5
6
7
8
9
10  
1
12  
11  
SD  
PD2  
IC361 LB1638M  
IC611 TDA7384  
10  
1
N.C.  
GND  
IC161 LC75373ED  
DRIVER  
DRIVER  
DRIVER  
DRIVER  
2
9
OUT1  
IN1  
33  
32  
31 30 29  
28 27 26  
25 24  
23  
8
7
VS  
+
+
VCC  
IN2  
3
4
22 LFIN  
+
OUT2  
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19  
20  
21 22 23  
24 25  
1
2
+
+
21 LFOUT  
34  
LSELO  
5
6
N.C.  
GND  
L4 35  
L3 36  
L2 37  
L1 38  
+
LROUT  
VREF  
20  
+
+
+
19  
VDD 39  
+
SHIFT  
REGISTER  
IC671 BA3918-V2  
IC701 BA8270F-E2  
18  
17  
16  
15  
14  
DECODER  
LATCH  
CONTROL  
CE  
DI  
+
R1  
40  
CL  
+
R2 41  
R3 42  
R4 43  
VSS  
RROUT  
+
BUS ON  
SWITCH  
14 VCC  
BUS ON  
1
2
3
RSELO 44  
+
REGULATOR  
RESET  
SWITCH  
+
13  
RST  
RST  
13  
RFOUT  
12 BUS ON  
11 CLK IN  
10 BU IN  
+
+
+
BATTERY  
SWITCH  
12 RFIN  
BATT  
OVER VOLTAGE  
PROTECT  
2
3
4
5
6
7
8
9
10  
11  
1
4
5
6
CLK  
VREF  
DATA  
+
9
8
DATA IN  
+
+
+
GND  
7
DATA OUT  
2
3
4
5
6
7
8
9
10  
11  
12  
1
– 31 –  
– 32 –  

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