Sony HCD-RG121 / MHC-RG121 Service Manual ▷ View online
37
37
HCD-RG121
5-16. PRINTED WIRING BOARD – TRANS SECTION –
•
: Uses unleaded solder.
POWER TRANSFORMER
(SUB)
E2, E3, SP, EA, E51, MX
1
1
1
3
3
2
3
4
E
1
10
MAIN
BOARD
CN303
(Page 29)
F
AMP
BOARD
CN442
(Page 38)
N
1
2
3
4
1
3
AC
IN
1
2
1
2
A
B
C
D
E
F
3
4
5
6
7
8
9
10
11
12
VOLTAGE
SELECTOR
120V
220V
230 - 240V
S901
SP, E2, E3, E51, EA
SP, E2, E3, E51, EA
MX
AEP, UK, AR, AUS
AEP, UK, MX, AR, AUS
AEP
, UK,
MX,
AR,
A
U
S
AEP
, UK,
AR,
A
U
S
AEP, UK, MX, AR, AUS
SP, E2, E3, E51, EA
E51, SP, E2,
E3, EA, MX
AEP, UK
AUS, AR
JW914
JW913
*
*
Not replaceable
built in transformer
built in transformer
POWER TRANSFORMER
(MAIN)
AEP
, UK,
MX,
AR,
A
U
S
Ref. No.
Location
D901
B-3
D902
B-2
D903
B-2
D904
B-2
D905
B-2
D906
C-10
D908
C-8
Q902
C-9
• Semiconductor
Location
38
38
HCD-RG121
5-17. PRINTED WIRING BOARD – AMP SECTION –
•
: Uses unleaded solder.
IC441
SPEAKER
(IMPEDANCE USE 6–16 )
+
-
+
-
L
R
(CHASSIS)
(CHASSIS)
(CHASSIS)
MAIN
BOARD
CN307
(Page 29)
TRANS
BOARD
CN905
(Page 37)
E
E
E
E
E
E
E
E
E
E
1
3
13
1
1
2
A
B
C
D
E
F
G
3
4
5
6
7
8
9
10
AEP,UK
EXCEPT
AEP, UK
AEP, UK
EXCEPT AEP
, UK
EXCEPT
AEP, UK
AEP, UK
AEP
, UK
C491
Ref. No.
Location
D401
F-3
D441
D-6
D442
D-6
D443
D-2
D481
D-6
D482
D-4
D483
C-9
IC441
B-7
Q441
D-6
Q442
D-6
Q481
D-9
Q482
D-8
Q483
D-8
Q484
D-8
Q485
C-4
Q486
C-4
Q487
C-4
Q488
C-5
Q489
C-9
• Semiconductor
Location
39
39
HCD-RG121
5-18. SCHEMATIC DIAGRAM – AMP POWER SECTION –
30
31
C459
0.1
C460
0.1
C455 0.1
R463 10
C457 0.1
C456 0.1
R464 10
C458 0.1
JW901
JW
JW925
JW
C403
C404
C441
C442
C908
EP401
EP402
Q441
Q442
Q481
Q482
Q483
Q484
Q485
Q486
Q487
R441
R442
R446
R458
R459
R460
R495
RY901
D908
C
4
0
7
C
4
0
8
D
9
0
6
R492
R494
JW917
JW401
J
W
4
0
2
JW403
JW404
RY441
R481
R487
R488
R490
C911
C447
C448
L441
L442
R461
R462
D401
IC441(1/2)
IC441(2/2)
TH441
JW909
C405
C406
R451
R452
R411
R412
C446
JW441
JW442
FH908
FH907
FH910
FH912
FH909
FH911
F904
F905
F906
FH913
FH914
F907
C906
R908
C910
C909
R903
R904
Q902
C
92
4
C
9
2
5
C
92
6
CN906
CN902
D905
D903
D902
D904
D
9
0
1
JW903
JW906
JW910
JW902
W001
CN901
PT901
CN905
CN907
C402
R
4
5
6
D
4
4
2
D
4
4
1
C489
R402
EP491
Q489
R467
R491
C445
R413
EXCEPT AEP, UK
R493
C488
R447
C451
C453
D
4
8
1
R453
C481
R485
R483
R484
R486
C444
R444
R414
C487
R489
D
4
8
2
C411
EXCEPT
AEP, UK
AEP, UK
R401
D443
R407
R455
R466
R465
JW407
R496
R457
C486
R482
C454
C452
R454
R448
R445
R443
AEP,UK
C491
1000P
1000P
C443
C492
D483
CN442
JK441
CN441
PT902
Q
4
8
8
CN904
C
92
0
C
9
2
1
C
9
22
C
92
3
CN903
0.1
100V
0.1
100V
10
50V
10
50V
220
63V
63V
TERMINAL, EARTH
TERMINAL, EARTH
2SC1841
2SC1841
2SC2785
2SC2785
2SC2785
2SC2785
2SA1175
2SC2785
2SC2785
1k
1k
1k
22k
47k
47k
1
1/4W
FR
RELAY U
10EDB40-TB3
0
.0
1
1
6
V
0
.0
1
1
6
V
M
T
Z
J
-T
7
2
-2
7
D
1k
1/4W
2.2k
1/4W
1/4W
JW
JW
J
W
JW
JW
SP RELAY
12V
4.7k
1/4W
1/4W
33k
1/4W
22k
1/4W
4.7k
1/4W
1/4W
1000
25V
22
35V
22
35V
10 1/2W
10 1/2W
0.1
1 1/4W
100
50V
50V
10
50V
12k
1k
2SA1932
0.1
0
.1
0
.1
3P
3P
10EDB40-TB3
10EDB40-TB3
10EDB40-TB3
10EDB40-TB3
1
S
S
1
3
3
T
-7
7
2P
3P
10P
0.01
16V
1
k
1
S
S
1
3
3
T
-7
7
1
S
S
1
3
3
T
-7
7
100
100V
100k
TERMINAL,
EARTH
2SC1841
33k
1/4W
22k
1/4W
33k
1/4W
22
35V
0.1
0.1
1
S
S
1
3
3
T
-7
7
10
1/2W
100
10V
10V
100k
1/4W
1/4W
100k
1/4W
1/4W
1000p
4.7
50V
50V
4.7k
1/4W
1/4W
1
S
S
1
3
3
T
-7
7
0.01
16V
100k
1SS133T-77
100
1/2W
1k
56k
1/4W
47k
1/4W
JW
100 1/4W FR
22k
2.2
50V
50V
10k
1/4W
0.1
0.1
10
1/2W
1k
1000p
0.01
1SS133T-77
3P
13P
*
0
.01
0.0
1
0
.01
0.0
1
*
JW
JW912
JW
JW908
JW
2200
50V
2200
50V
0.22
5W
0.22
5W
STK403-090
STK403-090
TH-10K
D10XB20
2.2k
1/4W
1/4W
2.2k
1/4W
1/4W
100p
50V
JW
JW
T6.3AL/250V
T6.3AL/250V
T3.15AL/250V
T3.15AL/250V
JW
JW
JW
JW
AC CORD U
100p
50V
6.8k
1/4W
33k
1/4W
22
1/4W
56k
1/4W
33k
1/4W
6.8k
1/4W
33k
1/4W
33k
1/4W
2
S
C
2
7
8
5
T
P
-F
E
K
CN904, CN903
2P : AEP, UK, MX. AR, AUS
4P : SP, E2, E3, E51, EA
2P : AEP, UK, MX. AR, AUS
4P : SP, E2, E3, E51, EA
*
240V
220V
4P
2P
SP, E2,
E3, E51,
EA
E3, E51,
EA
AEP, UK
JW907
JW
AUS, AR
SP, E2,
E3, E51,
EA, MX
120
220
240
AEP, UK, MX, AR, AUS
SP, E2, E3, E51, EA
S901
VOLTAGE
SELECTOR
120V
220V
230 - 240V
↓
↑
AEP, UK,
AR, AUS
AR, AUS
E2, E3, SP,
EA, E51, MX
JW904
JW
MX
JW905
JW
AEP, UK, AR, AUS
AEP,UK
AEP,UK
AEP,UK
40
40
HCD-RG121
• IC BLOCK DIAGRAMS
IC201 BA3126N (MAIN BOARD)
1
REC SW1
2
3
PB SW1
GND
4
CONT
5
GND
6
V
CC
7
PB SW2
8
GND
9
REC SW2
IC251 BA5947FM (BD80A BOARD)
15
16
17
18
19
20
21
22
23
24
25
26
27
36
28
29
30
31
32
33
34
35
1
2
3
4
5
6
7
8
9
10
11
12
13
14
LEVEL
SHIFT
SHIFT
F
R
R
F
R
F
F
19k
6.5k
50k 50k
100k
50k
PIN3
10k
Vref
50k 50k
PIN26
(ch1, 2)
POW
VCC
(ch3, 4)
SW
Pre
Vcc
INTER
FACE
INTER
FACE
INTER
FACE
R
F
50k 50k
POW
VCC
MUTE
Vref
POW
VCC
R
F
10k
CH1PUTF
CH1OUTR
CH2OUTF
CH2OUTR
POWVCC
CNF4
GND
C-M
C-P
VG
CH2RIN
CH2FIN
CH1RIN
CH1FIN
SW
OPIN+
OPIN-
NC
CH4OUTR
CH4OUTF
CH3OUTF
CH3OUTR
POWVCC
MUTE
GND
GND
PREGND
CT
CH3RIN
CH3FIN
CH4IN
CH4CAPA
OUTVREF
DPOUT
TREVCC
NC
D
D
D
D
D
D
D
D
IC701, 712 BA6956AN (DRIVER BOARD)
1
2
3
4
5
6
7
8
9
CONTROL LOGIC
TSD
VREF
OUT2
OUT1
RNF
VM
VCC
FIN
GND
RIN
IC101 BD3401KS2 (MAIN BOARD)
0
+
TNF2
TNF1
SUR1
SUR2
LINEOUT2
LINEOUT1
SAOUT2
SAOUT1
CAP
MIC
GAME L
GAME R
TUNER L
TUNER R
MD L
MD R
VOLOUT1
TONE OUT1
TONE OUT2
AMS OUT
BNF2
BNF1
MNF1
MNF2
MOUT1
MOUT2
BOUT2
BOUT1
BBNF1
BBIN1
VIN1
VIN2
VOLOUT2
BBNF2
BBIN2
LF1
LF2
LF3
LF4
SWOUT
FILTER
1/2 Vcc
Vcc
GND
VDD
SI
SC
ALC
CD L
CD R
TAPE L
TAPE R
PBNF2
PBNF1
PBOUT2
PBOUT1
TAPE A1
TAPE A2
TAPE B1
TAPE B2
RECNF2
RECNF1
DIGITAL
CONTROL
Di-LIMITER
RECOUT2
RECOUT1
46
45
44
43
42
41
40
39
38
37
36
35
34
33
48
47
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
SURROUND
ATT
ATT
BUFFER
MIX
MIC MIX
VOCAL FADER
+
-
+
-
BASS MIDDLE TREBLE
BASS MIDDLE TREBLE
G
fc=100HZ
f
ALC
ALC
INPUT
SELECTOR
+
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
49
SOFT
SWITCH
+
+
-
+
-
+
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