Sony HCD-RG88 Service Manual ▷ View online
HCD-RG88
46
46
7-25. PRINTED WIRING BOARDS – PAD SWITCH/VOL Boards –
•
See page 27 for Circuit Boards Location.
1-683-535-
11
(11)
1
4
1
8
P
PANEL BOARD
NO604
IC603
1
3
DISPLAY
MUSIC EQ
TUNER MEMORY
PLAY MODE
EFFECT
ON/OFF
ON/OFF
GROOVE
GAME EQ
P FILE
SURROUND
ENTER
MOVIE EQ
DIMMER
SPECTRUM
FM MODE
REPEAT
+
−
VOL BOARD
1-683-536-
11
(11)
S748
(ROTARY ENCODER)
VOLUME
4
1
S750, 752,
S754
− 762,
S765
− 778
3
1
2
DIRECTION
EDIT
PAD SWITCH
BOARD
(Page 44)
HCD-RG88
47
47
7-26. SCHEMATIC DIAGRAM – PAD SWITCH/VOL Boards –
• Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : TUNER (FM/AM)
no mark : TUNER (FM/AM)
NO605
TP682
S776
S777
S775
S774
S773
S772
S771
S770
S769
S768
S767
S766
S765
S754
S755
S757
S758
S759
S760
S761
S762
CN606
CN607
S750
D613
C615
S748
R625
C614
R750
R765
R766
R767
R768
R769
R770
R771
R772
R773
R774
R775
R776
R777
R778
S778
S752
S756
R752
R753
R755
R756
R757
R758
R759
R760
R761
R762
IC603
R754
C752
C751
8P
4P
4P
1SS133T
-72
47
10V
47
0.001
270
470
680
1k
1.5k
1.5k
2.2k
3.3k
4.7k
6.8k
10k
15k
22k
33k
68k
680
1k
1.5k
2.2k
3.3k
4.7k
6.8k
10k
15k
22k
NJL74H400A
1.5k
0.1
0.1
VOL 1A
VOL 1B
GC DGND
KEY 1
VOL 1B
VOL 1A
KEY 1
KEY INT DISPLAY
KEY 0
SIRCS
DGND
EVER +4V
VOL 1A
VOL 1B
GC DGND
KEY 1
VOLUME
(ROTARY ENCODER)
DISPLAY
DIMMER
FM MODE
REPEAT
SPECTRUM
TUNER MEMORY
PLAY MODE
S766
S765
S767
S769
S768
S770
GROOVE
S771
S772
S773
EFFECT
ON/OFF
S774
S775
ENTER
S776
S777
MOVIE EQ
GAME EQ
MUSIC EQ
S778
SURROUND
P FILE
-
+
REMOTE CONTROL
RECEIVER
DIRECTION
EDIT
(Page 45)
HCD-RG88
48
48
7-27. PRINTED WIRING BOARDS – MAIN TRANS/SUB-TRANS Boards –
•
See page 27 for Circuit Boards Location.
MAIN TRANS BOARD
1-683-539-
11
(11)
4
1
∗
∗ NOT REPLACEABLE:
BUILT IN TRANSFORMER
T910
MAIN POWER
TRANSFORMER
M
POWER
BOARD
NO501
IC971
SUB-TRANS BOARD
1-683-540-
11
(11)
1
3
3
E
N
POWER BOARD
NO504
1
1
4
2
1
2
AC IN
VOLTAGE SELECTOR
S901
120V
220V
230
− 240V
T972
SUB POWER
TRANSFORMER
A
B
C
D
E
F
G
H
1
2
3
4
5
6
7
(MX)
(E, SP, AR)
(E, SP)
(E, SP)
(MX)
(MX)
(E, SP, AR)
(MX)
(AR)
(E, SP)
(MX, AR)
(E, SP)
(E, SP)
(Page 42)
(Page 42)
• Semiconductor
Location
Ref. No.
Location
D971
G-4
D972
F-2
D973
F-2
D974
E-2
D975
E-2
D976
G-2
D977
C-7
IC971
G-2
Q971
G-3
HCD-RG88
49
49
7-28. SCHEMATIC DIAGRAM – MAIN TRANS/SUB-TRANS Boards –
• Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : TUNER (FM/AM)
no mark : TUNER (FM/AM)
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
TP1
TP2
TP3
TP4
TP5
TP6
TP7
TP8
TP9
TP10
TP11
TP12
TP13
D977
JW972
JW971
R974
R975
CN976
C975
D974
D975
D973
D972
C976
C973
C978
C977
JW984
JW986
JW987
CN997
T972
T910
R952
R941
Q971
C971
D971
CN974
RY971
S901
D976
F974
F975
F976
F977
F971
JW975
JW974
JW973
CN973
JW993
JW990
NO971
R951
C941
R953
R944
IC971
11ES2
100k
10k
3P
2200
16V
11ES2
11ES2
11ES2
11ES2
0.1
100
16V
16V
0.1
0.1
13P
0.15
1
2SC2785
10000p
250V
1SS133T
2P
T6.3AL
250V
T6.3AL
250V
T8AL
250V
250V
T8AL
250V
250V
T5AL
250V
250V
0.1
100
63V
63V
∗
∗
STBY RELAY
D-GND
N
220
120
AC3
AC4
AC4
VF
VF
VL
VL
AC3
VH
GND
GND
VH
230-240
220
120
230-240
N
230-240
220
230-240
220
120
120
VP
TRANSFORMER
TRANSFORMER
SUB POWER
MAIN POWER
∗
NOT REPLACEABLE:
BUILT IN TRANSFORMER
G
O
I
+4V REGULATOR
RELAY DRIVE
POWER ON/OFF
AC IN
220V
VOLTAGE SELECTOR
120V
230-240V
-1
-2
(E,SP)
(MX)
(M
X)
(AR
)
(E,SP,AR)
(E,SP)
∗
4P
2P (MX,AR)
CN973
(E,SP)
(E,SP)
(MX,AR)
(E,SP)
(AR)
(E,SP,AR
)
(MX)
EVER+4V
(E,SP)
NO971
∗
4P
2P (MX,AR)
(E,SP)
µPC3504AHF
(Page 43)
(Page 43)
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