Sony CMT-GP6V / HCD-GP6V Service Manual ▷ View online
37
HCD-GP6V
IC805
BH2220FVM-TR
– VCD Board –
REC-O_L
REC-O_R
TUNER-R
TUNER-L
CD-L
A
UX-L
OUT
-L
OUT
-R
T
ON_L-L
T
ON_L-R
A
UX-R
CD-R
VSS
T
ON_H-R
T
ON_H-L
T
APE-L
T
APE-R
IC301
BD3881FV
– MAIN Board –
R-2R
DAC
8bit REG
+
DEC
R-2R
DAC
8bit REG
+
DEC
SERIAL
INTERFACE
R-2R
DAC
8bit REG
+
DEC
POWER ON
RESET
1
AO1
2
AO2
7
CLK
3
AO3
4
VCC
8
LD
6
DI
5
GND
38
HCD-GP6V
IC504
BU9262AFS
– CONTROL Board –
1
2
3
4
5
6
7
8
9
CONTROL LOGIC
TSD
VREF
OUT2
OUT1
RNF
VM
VCC
FIN
GND
RIN
IC604
BA6956AN
1
N. C.
2
TESTB
3
SCK
4
SLT
5
SI
6
CLKO
7
CLKI
8
N. C.
9
DSOUT
10
TESTOUT
11
LPF1I1
12
LPF1I2
13
LPF1O
14
ADI
15
ADO
16
GND
32 MIXIN
31 MICIN
30 VDD
29 LCIN
28 RCIN
27 FBOUT
26 LCOUT
25 RCOUT
24 VREF
23 DSIG
22 VOIN
21 LPF2O
20 LPF2I2
19 LPF2I1
18 DAO
17 DAI
SERIAL
CONTROL
CIRCUIOT
CIRCUIOT
CLOCK
A/D
CONVERETR
LOW-PASS
FILTER
INPUT
MIX
SELECTOR
DLYVOL
MIX OUT
REFERENCE
RESET
FBVOL
LOW-PASS
FILTER
D/A
CONVERETR
PROCESSOR
RAM
TEST OUT
CONTROL
LOGIC INPUT
– MIC/ECHO Board –
IC201
STK403-040
PRE DRIVER
IC CH1
1
2
3
4
5
6
7
8
9
10
11
12
PRE DRIVER
IC CH2
BIAS CIRCUIT
–VCC (–VP)
+VCC (+VP)
CH1 OUT
CH2 OUT
+PRE
SUB
GND
CH1 IN
CH1 NF
ST BY
CH2 NF
CH2 IN
C4
C2
C1
C3
TR4
TR6
TR3
TR2
TR5
TR1
R5
R6
R1
R2
R3
R4
R7
R8
SUB
39
HCD-GP6V
• IC Pin Function Description
• CONTROL BOARD IC601 LC876756C-52C3 (SYSTEM CONTROLLER)
• CONTROL BOARD IC601 LC876756C-52C3 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
NC
—
Not used (open)
2
NC
—
Not used (open)
3
O-CD DATA
O
Data output to the video CD circuit
4
T-SOL
O
Solenoid control signal output to the tape deck
5
T-END
I
Tape deck reel switch signal input
6
T-MTR.CONT
O
Motor control signal output to the tape deck
7
O-SHIFT
O
Clock shift control signal output
8
P-CONT
O
Power relay control signal output
9
P AMP-MUTE
O
Muting control signal output to the power amplifier
10
F-DATA
O
Control signal output to the sound processor
11
I-RESET
I
Reset signal input from the reset IC (IC602)
12
I-XT1
I
Resonator terminal (32.768kHz)
13
O-XT2
O
Resonator terminal (32.768kHz)
14
GND.
—
Ground terminal
15
XIN
I
Resonator terminal (8.64MHz)
16
XOUT
O
Resonator terminal (8.64MHz)
17
VDD1
—
Power supply terminal
18
I-KEY1
I
Key AD input 1
19
I-KEY2
I
Key AD input 2
20
NC
—
Not used (open)
21
NC
—
Not used (open)
22
NC
—
Not used (open)
23
NC
—
Not used (open)
24
T-SW
I
Tape switch status signal input from the tape deck (SW2 to 4)
25
I-POWER_MONI
I
Power amplifier overload monitoring signal input
26
I-POWER_DOWN
I
Power down detection signal input
27
NC
—
Not used (open)
28
CD-DOOR-SW
I
CD door open/close switch signal input
29
RMC_IN
I
Remote sensor signal input
30 to 33
NC
—
Not used (open)
34 to 44
O-GRID1 to 11
O
Grid signal output to the fluorescent indicator tube
45
O-SEG1
O
Segment signal output to the fluorescent indicator tube
46
VDD3
—
Power supply terminal
47 to 50
O-SEG2 to 5
O
Segment signal output to the fluorescent indicator tube
51
GND.
—
Ground terminal
52 to 66
O-SEG6 to 20
O
Segment signal output to the fluorescent indicator tube
67, 68
NC
—
Not used (open)
69 to 71
I-INI-1 to 3
I
Initial selection signal input
72
VDD4
—
Power supply terminal
73
O-CLOSE
O
CD tray close control signal output
74
O-OPEN
O
CD tray open control signal output
75
LED-CONT
O
Standby LED control signal output
76
O-DSG
O
Muting control signal output to the sound processor (IC301)
77
T-REC
O
REC/PLAY control signal output to the REC/PLAY switch circuit
78
I-INI.DSG OFF
—
Not used (fixed at “L”)
79
T-PLAY.SW
I
Play switch signal input from the tape deck
80
R-MUTE
O
Muting signal output to the tuner
40
HCD-GP6V
Pin No.
Pin Name
I/O
Description
81
O-BIAS
O
Bias control signal output to the bias oscillation circuit
82
CD
O
CD power supply control signal output
83
TUNER
O
Tuner power supply control signal output
84
R-CE
O
Tuner chip enable signal output to the tuner
85
O-BU-CLK
O
Clock output to the echo processor (IC504)
86
O-BU-DATA
O
Data output to the echo processor (IC504)
87
O-BU-STB
O
Latch signal output to the echo processor (IC504)
88
I-CD DATA
I
Data input from the video CD circuit
89
VSS2
—
Ground terminal
90
VDD2
—
Power supply terminal
91
NC
—
Not used (open)
92
R-ST
I
Stereo/mono detection signal input from the tuner
93
R-TUNED
I
Tuner tuned status signal input
94
O-CD ACK
O
Acknowledge signal output from the video CD circuit
95
NC
—
Not used (open)
96
O-CD STB
O
Data output to the video CD circuit
97
C-VF ON
O
Vocal fader on/off control signal output
98
R-DATA
O
Strobe signal output to the tuner
99
R-COUNT
I
IF count signal input from the tuner
100
R-CLK
O
Clock signal output to the tuner
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