Sony HCD-GX40 / MHC-GX40 Service Manual ▷ View online
37
HCD-GX40
IC102 LC72131D (MAIN BOARD)
IC701 BA6956AN (DRIVER BOARD)
PHASE
DETECTOR
CHARGE PUMP
SWALLOW COUNTER
1/16, 1/17 4BITS
12BITS
PROGRAMMABLE
DRIVER
UNIVERSAL
COUNTER
REFERENCE
DIVIDER
POWER
ON
RESET
1/2
CCB
INTERFACE
1
3 4 5 6
7 8 9 10
18
17
16
15
13
12
11
19
20
21
22
XOUT
GND
AOUT
AIN
PD
VDD
FMOSC
AMOSC
14
NC
XIN
DO
CL
DI
CE
2
NC
IFIN
SD/IN
FA
VCO STOP
IF REQ
FM
NC
UNLOCK
DETECTOR
DATA SHIFT REGISTER LATCH
1
2
3
4
5
6
7
8
9
CONTROL LOGIC
TSD
VREF
OUT2
OUT1
RNF
VM
VCC
FIN
GND
RIN
38
HCD-GX40
5-17. IC Pin Function Description
• IC601 LC876662W-5Z15 Master Control (PANEL Board)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30 to 41
42 to 45
46
47 to 54
55
to
65
66
67
68
69
70
71
72
73
74
75
76
77
78
I/O
O
O
O
O
O
O
I
I
I
–
I
I
O
–
I
O
–
I
I
O
I
I
I
I
I
I
I
I
I
O
O
–
O
O
I
I
I
I
I
I
–
O
O
O
O
I
I
Pin Name
PWR LED
P.S.RELAY
SYS MUTE
CD MOTOR +
CD MOTOR –
CD RWC
VR ENCODER B
VR ENCODER A
BU1924/FLASH DATA
FLASH R/W
RESET
XT1
XT2
VSS
CF1
CF2
VDD1
TAPE A: STAT
TAPE B: STAT
VACS
SPEANA IN L
SPEANA IN R
KEY INPUT 0
KEY INPUT 1
KEY INPUT 2
PWR SW, DISP SW
REMOCON IN
PWR DOWN
BU1924 CLK
G12 to G01
P01 to P04
VDD
P05 to P11
P12 OP. OUT 10(SW11)
to
P22 OP. OUT 00(SW01)
OPTION SW INPUT
CD CLOSE
CD DRF
CD WRQ
CD BUSY
(PIC UP/DOWN)SW
CD NUMBER SENSOR
VDD
CD MUTE
CD SLED (+)
CD SLED (–)
CD RESET
HEAD PHONE SENSOR
TUNER TUNED
Description
PWR LED control signal output
Standby relay control signal output
System muting signal output
CD changer motor control signal output
CD changer motor control signal output
Read/write control signal output
Volume signal input from the rotary encoder
Volume signal input from the rotary encoder
Data input from the RDS decoder IC
Fixed at “H”
Reset input
Connection for a crystal resonator
Connection for a crystal resonator
Ground
Connection for a ceramic resonator
Connection for a ceramic resonator
Power sypply
TAPE A switches signal input
TAPE B switches signal input
VACS control signal output
Spectrum analyzer signal input
Spectrum analyzer signal input
Function key input
Function key input
Function key input
POWER switch or DISP switch key input
Data input from the remote control receiver
Power down signal input
Clock input from the RDS decoder IC
FL tube grid signal ouput
FL tube segment signal ouput
Power supply
FL tube segment signal ouput
FL tube segment signal ouput or switch signal output
Switch signal input
CD tray close switch signal input
RF level detection signal input
Subcode Q standby signal input
CD BU up/down switch signal input
Table address sensor switch signal input
Power supply
CD audio muting signal output
Sled motor control signal output
Sled motor control signal output
CD reset signal output
Headphone detection signal input
Tuning a frequency signal input
39
HCD-GX40
Pin No.
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
I/O
I
I
I
I
I
I
O
O
O
O
–
–
O
O
O
O
O
I
O
O
I
O
Pin Name
TUNER STEREO
CD OPEN
TAPE PHOTO A
TAPE PHOTO B
TAPE AMS
PROTECTOR SENSOR
PT8300 LATCH
CD LED
TUNER LED
TAPE LED
VSS
VDD
GAME LED
GAME MIX LED
LC72131 CE
BD3871 DATA/LATCH
LC72131,PT8300
DATA OUT
LC72131 DATA IN
LC72131,BD3871,
PT8300 CLK
LA9241M,LC78622NE
COIN
LA9241M,LC78622NE
SQOUT
LA9241M,LC78622NE
SQCK
Description
Stereo tuning signal input
CD tray open switch signal input
A deck photo sensor singanl input
B deck photo sensor singanl input
AMS signal input
Power amplifier circuit protection signal input
Latch signal output to the I/O expander
CD LED control signal output
TUNER LED control signal output
TAPE LED control signal output
Ground
Power supply
GAME LED control signal output
GAME MIX LED control signal output
Chip select signal output to the PLL tuner IC
Data/latch signal output to the sound processor
Data output to the PLL tuner IC and the I/O expander
Data input from the the PLL tuner IC
Clock output to the PLL tuner IC, the sound processor and the I/O expander
CD command data signal output
CD subcode Q signal input
CD command clock signal output
40
HCD-GX40
NOTE:
•
-XX, -X mean standardized parts, so they may
have some differences from the original one.
have some differences from the original one.
•
Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
The components identified by mark
0
or
dotted line with mark
0
are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque
0
sont critiques pour la sécurité.
Ne les remplacer que par une pièce portant
le numéro spécifié.
le numéro spécifié.
•
The mechanical parts with no reference number
in the exploded views are not supplied.
in the exploded views are not supplied.
6-1. Main Section
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
CD mechanism deck section
(CDM58F-K6A)
#1
#1
#1
#5
#5
#1
#1
#1 #1
#1
#1
#1
#2
#5
#5
#1
a
a
#2
3
2
9
1
1
1
1
4
Front Panel
section
section
MAIN board section
M961
not
supplied
not
supplied
not
supplied
6
7
b
b
SECTION 6
EXPLODED VIEWS
1
3-363-099-41 SCREW (CASE 3 TP2)
2
4-224-549-21 CASE (SIDE-L)
3
4-238-616-01 CD DOOR
4
4-224-550-81 CASE (TOP)
6
1-684-302-11 SUB TRANS BOARD
7
1-684-298-11 VIDEO OUT BOARD
9
4-224-548-61 CASE (SIDE-R)
M961
1-763-072-11 FAN, D.C.
#1
7-685-647-79 SCREW +BVTP 3X10 TYPE2 N-S
#2
7-685-871-01 SCREW +BVTT 3X6 (S)
#5
7-685-872-09 SCREW +BVTT 3X8 (S)
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