Sony HCD-GRX20 / HCD-RXD3 / MHC-GRX20 / MHC-RXD3 (serv.man2) Service Manual ▷ View online
33
— MAIN BOARD —
IC103
LC72131
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
2 3 4 5
6 7 8 9
16
15
14
13
12
11
10
17
18
19
20
XOUT
VSS
AOUT
AIN
PD
VDD
FMIN
AMIN
XIN
DO
CL
DI
CE
IFIN
IO1
BO4
BO3
BO2
BO1
IO2
UNLOCK
DETECTOR
DATA SHIFT REGISTER LATCH
IC201
TA8189N
CH2/A CH2/B
NF
VCC
CG
NF
ALC
METAL
OUT
PRE
OUT
OUT
TAPE A
/TAPE B
REC
OUT
OUT
REC
IN
CH1/A CH1/B
NF
GND1
M/H
NF
CH2
CH2
ALC
M/N
CH1
GND
GND
CH1
+
–
+
–
+
–
+
–
A/B
GND
METAL
OUT
PRE
OUT
OUT
MIX
OUT
REC
OUT
OUT
REC
IN
IREF
VREF2
VREF1
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
34
IC252
74HC165
IC301
M62439SP
1
2
3
4
5
6
7
8
9
10
16
15
14
13
12
11
CK
E
F
G
H
QH
D
C
B
A
SERIAL
IN
CLOCK
INHIBIT
SHIFT/
LOAD
GND
QH
VCC
OUTPUT
QH
SERIAL
INPUT
A
B
C
D
CLOCK
INHIBIT
SHIFT/
LOAD
CLOCK
E
F
G
H
OUTPUT
QH
PARALLEL INPUTS
PARALLEL INPUTS
— FRONT BOARD —
IC602
BU2092
1 2
3
4
5 6 7 8 9
10
16 15 14 13 12 11
CONTROL
CIRCUIT
12 BIT
SHIFT
REGISTER
12 BIT
STORAGE
REGISTER
OUTPUT
BUFFER
(OPEN DRAIN)
17
18
VDD
OE
Q11
Q10
Q9
Q8
Q7
Q6
Q5
Q4
Q3
Q2
Q1
Q0
LCK
CLOCK
DATA
VSS
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
CONTROL
LOGIC
REC OUT SW
INPUT SW
MONAURAL SW
MUTE
VOLUME CONTROL
Low boost
High boost
REC OUT2
INA2
INB2
INC2
IND2
TONEH2
TONEL2
OUT2
Vss
CONT
VDD
GND
OUT1
TONEL1
TONEH1
IND1
INC1
INB1
INA1
REC OUT1
35
SECTION 7
EXPLODED VIEWS
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 mechanical parts with no reference number
in the exploded views are not supplied.
in the exploded views are not supplied.
•
Hardware (# mark) list and accessories and
packing materials are given in the last of this
parts list.
packing materials are given in the last of this
parts list.
•
Abbreviation
AUS
AUS
: Australian model
G
: German model
SP
: Singapore model
MX
: Mexican model
AR
: Argentina model
TW
: Taiwan model
AED
: North European model
The components identified by mark
!
or
dotted line with mark
!
are critical for safety.
Replace only with part number specified.
7-1. CABINET SECTION
1
2
4
5
6
12
7
11
8
9
9
9
9
10
13
13
14
15
CD mechanism deck
Front panel section
T001
not supplied
#10
#10
#10
#15
#15
#18
#18
#18
#12
#12
#15
#15
#15
#4
#15
#14
#14
#15
#17
#17
#17
#17
#17
#11
#17 #15
#10
#22
not supplied
not supplied
E,MX MODEL
UK MODEL
AUS MODEL
SP,TW MODEL
SP,TW,AEP,AED,
CIS,G MODEL
CIS,G MODEL
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
1
4-220-797-01 DOOR,CD (RXD3)
1
4-221-607-01 DOOR,CD (GRX20)
2
4-220-799-01 COVER, TOP
4
A-4426-302-A MAIN BOARD ,COMPLETE (RXD3)
4
A-4426-303-A MAIN BOARD ,COMPLETE (GRX20)
* 5
4-210-591-01 CABINET (A), REAR
6
4-221-603-01 CABINET, REAR (RXD3)
6
4-221-604-01 CABINET, REAR (GRX20:AUS)
6
4-221-605-01 CABINET, REAR (GRX20:AR,E,SP,TW)
6
4-221-606-01 CABINET, REAR (GRX20:MX)
7
A-4426-292-A AMPLIFIER BOARD ,COMPLETE (RXD3)
7
A-4426-293-A AMPLIFIER BOARD ,COMPLETE (GRX20:AUS)
7
A-4426-294-A AMPLIFIER BOARD ,COMPLETE
(GRX20:AR,E,MX,SP,TW)
8
1-674-558-11 FUSE BOARD
! 9
1-551-506-99 CORD, POWER (GRX20:E,MX)
! 9
1-555-795-00 CORD, POWER
(GRX20:SP,TW/RXD3:AED,AEP,CIS,G)
! 9
1-696-572-21 CORD, POWER (RXD3:UK)
! 9
1-696-966-11 CORD, POWER (GRX20:AUS)
! 9
1-783-941-41 CORD, POWER (GRX20:AR)
10
3-703-244-21 BUSHING, CORD
11
1-674-554-11 TR BOARD
12
1-674-794-11 PHOTO SOCKET BOARD
13
4-220-602-01 RUBBER, FOOT
! 14
1-569-008-21 ADAPTOR, CONVERSION 2P (SP,TW)
15
1-674-880-11 AC SWITCH BOARD (GRX20:AR,E,MX,SP,TW)
! T001
1-433-917-11 TRANSFORMER, POWER (GRX20:MX)
! T001
1-433-918-11 TRANSFORMER, POWER (RXD3)
! T001
1-433-919-11 TRANSFORMER, POWER (GRX20:AR,E,SP,TW)
! T001
1-433-920-11 TRANSFORMER, POWER (GRX20:AUS)
36
7-2. FRONT PANEL SECTION
54
64
63
55
65
56
57
59
58
71
83
69
68
83
85
70
86
87
76
89
90
77
88
78
67
60
51
61
62
75
72
74
73
79
80
81
85
93
92
63
53
52
not supplied
#17
#18
#12
#12
#18
#17
#17
#17
#18
not supplied
not supplied
not supplied
66
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
51
A-4411-712-A PANEL ASSY, FRONT (GRX20:AUS/RXD3)
51
A-4411-741-A PANEL ASSY, FRONT (GRX20:SP,TW)
51
A-4411-739-A PANEL ASSY, FRONT (GRX20:AR,E)
51
A-4411-740-A PANEL ASSY, FRONT (GRX20:MX)
52
4-220-592-01 WINDOW (L), CASSETTE
53
4-220-595-01 DOOR(L), CASSETTE
54
4-220-626-01 HOLDER (L), CASSETTE
55
4-220-623-01 SPRING (L), DOOR
56
4-220-593-01 WINDOW (R), CASSETTE
57
4-220-796-01 DOOR(R), CASSETTE
58
4-220-627-01 HOLDER (R), CASSETTE
59
4-220-624-01 SPRING (R), DOOR
60
4-220-614-01 EMBLEM, LOGO
61
4-220-605-01 WINDOW, DISPLAY
62
4-220-804-01 COVER, FRONT
63
4-220-622-01 DAMPER (GRY), GEAR
64
4-220-594-01 KNOB, VOLUME
65
4-220-621-01 RING, VOLUME
66
4-220-602-01 RUBBER, FOOT
67
1-674-559-11 H/P BOARD
68
4-220-612-01 BUTTON, ENTER/NEXT
69
4-220-611-01 BUTTON, CASS/REC
70
4-220-610-01 BUTTON, DISC
71
1-674-561-11 VR BOARD
72
4-220-805-01 BUTTON, FUNCTION
73
4-220-617-01 LENS(A), BUTTON
74
4-220-618-01 LENS(B/L), BUTTON
75
4-220-619-01 LENS(B/R), BUTTON
76
4-220-806-01 BUTTON, TUNER
77
4-220-807-01 LENS(CD), BUTTON
78
4-220-609-01 BUTTON, FILE SELECT
79
A-4426-056-A FRONT BOARD ,COMPLETE(GRX20:AUS/RXD3)
79
A-4426-289-A FRONT BOARD ,COMPLETE (GRX20:AR,E)
79
A-4426-290-A FRONT BOARD ,COMPLETE (GRX20:MX)
79
A-4426-291-A FRONT BOARD ,COMPLETE (GRX20:SP,TW)
80
4-220-616-01 BUTTON, CLOCK
81
4-220-606-01 BUTTON, DISPLAY
83
4-220-628-01 SPRING, EJECT LEVER
85
4-220-629-01 LEVER, EJECT
86
1-772-163-11 DECK, MECH
87
1-783-579-11 WIRE(FLAT TYPE) (16 CORE)
88
1-769-273-11 WIRE(FLAT TYPE) (22 CORE)
89
4-220-613-01 BUTTON, REC
90
4-220-615-01 LENS, PAUSE BUTTON
92
4-220-811-01 SPRING (R), BUSHING
93
4-220-810-01 SPRING (L), BUSHING
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