Sony HCD-GX255 / HCD-RG170 / HCD-RG470 / MHC-GX255 / MHC-RG170 / MHC-RG470 Service Manual ▷ View online
45
45
HCD-GX255/RG170/RG470
HCD-GX255/RG170/RG470
6-24. SCHEMATIC DIAGRAM – POWER Board – (RG470: E2, E51, AR, MX)
J3
MAIN BOARD
(3/3)
CN031
J6
MAIN BOARD
(3/3)
CN031
R450
Q490
Q484
Q441
CN441
CN442
C413
C414
R
4
7
3
C403
C404
R411
R412
R461
R413
EP401
EP402
C402
R419
R418
R417
R407
D443
R490
R440
R499
R498
R482
R487
R488
R481
R486
R485
C481
D481
R437
R409
R410
R401
R402
R404
R403
R405
R406
Q482
R465
R466
R497
R425
R424
R420
R453
C453
C451
R421
R423
R422
R454
C454
C452
R460
Q442
R458
R459
R456
R492
R457
R491
R455
R478
R475
R463
R474
Q491
R464
R472
R471
D444
R470
R416
R415
R414
R462
C463
R469
D446
R477
C462
R476
R436
R479
R439
R444
C442
R442
R
4
43
C
4
4
3
R441
C441
Q483
C486
D441
C444
JK441
L441
L442
RY441
R484
R480
R483
TH441
Q481
R449
R448
R468
R447
Q489
IC441(1/2)
IC441(2/2)
C446
JR442
R495
R446
C448
C447
R445
JR441
C445
R467
Q487
Q486
Q488
Q485
C405
C406
C410
C409
D401
D402
C411
R496
D445
C461
JW404
JW403
0.22
5W
2SC3052
EF
2SC3052
EF
2SC5625
13P
5P
0.1
0.1
4
7k
0.1
100V
0.1
100V
10
10
10
10
0.01
100
220
100
100
1SS355
4.7k
22k
1k
1k
10k
47k
22k
4.7k
100k
100k
100
10V
10V
1SS355
10k
100k
100k
100k
100k
100k
100k
100k
100k
2SC3052
EF
47k
100k
100k
10
10
10
10
0.1
0.1
10
10
10
10
0.1
0.1
100k
2SC5625
22k
100k
1k
47k
22k
47k
1k
22k
10k
47k
2.2k
2SA2026
100k
100k
100k
1SS355
47k
10
10
10
10
470
6.3V
47k
UDZS-16B
100
47
100V
22k
22k
10k
10k
47k
10
50V
2.2k
47
k
0
.0
0
1
2.2k
10
50V
2SC3052
EF
2.2
50V
50V
MC2836
0.001
100k
100k
22
2SC3052
EF
0.22
5W
47k
2.2k
1W
47k
2SC5625
STK412-240
STK412-240
100p
0
1
1k
47
50V
47
50V
1k
0
100p
2.2k
1W
2SC3052
EF
2SC3052
EF
2SC3052EF
2SA1235
EF
2200
71V
2200
71V
4700
50V
4700
50V
D10XB20
D10XB20
1000p
100
UDZS-16B
47 100V
GND
AC-VH
AC-VL
AC-VL
AC-VH
SP-GND
AMP-A-GND
RELAY B+
PWR GND
STK MUTE
PROTECT
SP(L)
SP(R)
SP GND
SP GND
NC
(L)
(R)
IMPEDANCE
SPEAKER
Q483,484
TEMPERATURE
DETECT
Q481,482
DC DETECT
Q441,442
DETECT
OVER LOAD
Q490,491
SHIFT
SWITCH
STANDBY
LEVEL
POWER AMP
DETECT
PROTECT
RELAY
DRIVE
RELAY
SWITCH
PROTECTOR
SP L-OUT
SP R-OUT
R-OUT
L-OUT
UNREG +16V
GND
(CHASSIS)
(CHASSIS)
USE 6
−16Ω
(SUFFIX-11)
(SUFFIX-12)
(Page 35)
(Page 59)
(Page 39)
46
46
HCD-GX255/RG170/RG470
HCD-GX255/RG170/RG470
6-25. PRINTED WIRING BOARDS – AUDIO IN, MIC, HEADPHONE Boards –
: Uses unleaded solder.
•
See page 25 for Circuit Boards Location.
JW802
JW809
JW808
JW807
W801
JW812
JW813
CN801
JW804
C813
C811
C851
C817
C818
C801
C814
C809
JK801
JK802
JW810
VR801
C869
C857
C858
C861
C870
C863
VR851
JW811
JW805
C803
C805
JR801
JR802
R819
C859
C867
C802
C808
C810
C815
C819
C852
C854
C856
C862
C864
C865
C868
R801
R802
R803
R804
R805
R806
R807
R808
R809
R810
R811
R812
R813
R814
R815
R816
R818
R817
R852
R853
R851
R854
R855
R856
R857
R858
R859
R860
R861
R862
Q801
C833
D851
C853
C807
C816
IC801
MIC BOARD
1-865-659-
11
(11)
ECHO LEVEL
MIC LEVEL
MIC
MIC 1
(MX)
(E2, E51, AR, MX)
(MX)
(MX)
MIC 2
(MX)
(E2, E51, AR)
E2, E51,
AR
1
4
(CHASSIS)
E
CN751
J751
R752
R751
1-865-925-
11
(11)
AUDIO IN
BOARD
AUDIO IN
1
5
CN701
JW701
J701
C783
C781
C782
1-865-920-
12
(12)
HEADPHONE
BOARD
PHONES
1
5
A
B
C
D
1
2
3
4
5
6
7
8
IC802
E2, E51,
AR
MAIN BOARD
CN066
E2
(SUFFIX-12)
MAIN BOARD
CN066
E1
(SUFFIX-11)
MAIN BOARD
CN061
MAIN BOARD
CN061
(SUFFIX-12)
(SUFFIX-11)
G2
G1
MAIN BOARD
CN065
MAIN BOARD
CN065
(SUFFIX-12)
(SUFFIX-11)
F2
F1
(Page 32)
(Page 36)
(Page 32)
(Page 36)
(Page 32)
(Page 36)
47
47
HCD-GX255/RG170/RG470
HCD-GX255/RG170/RG470
6-26. SCHEMATIC DIAGRAM – AUDIO IN, MIC, HEADPHONE Boards –
•
See page 61 for IC Block Diagrams.
F1
MAIN BOARD
(2/3)
CN065
F2
MAIN BOARD
(2/3)
CN065
G2
MAIN BOARD
(2/3)
CN061
G1
MAIN BOARD
(2/3)
CN061
E2
MAIN BOARD
(2/3)
CN066
E1
MAIN BOARD
(2/3)
CN066
R814
C811
C814
R860
C861
IC801(1/2)
D851
R813
C815
R818
R817
C818
C819
R816
R815
C817
R812
C809
R810
R808
C810
R819
R811
C807
R809
C803
R807
C802
R804
R803
R806
C801
R805
R862
R861
R851
C870
C869
C868
R855
R859
R858
R857
C867
C864
C865
C862
C853
C854
R853
R852
C857
C858
C856
R854
C859
C851
C852
C808
R856
C833
IC802
CN801
C816
VR851
C863
R802
R801
Q801
JR801
JR802
JK801
JK802
W801
VR801
CN751
R751
R752
J751
J701
CN701
JW701
C781
C782
IC801(2/2)
C805
C813
220k
0.1
50V
2.2
50V
50V
100k
1
50V
BA4558F-E2
UDZSTE-17-5.1B
10k
47p
4.7k
4.7k
10
16V
0.1
100k
100
2.2
50V
50V
100
10
16V
1k
10k
470p
220k
47k
1000p
100k
0.022
10k
1000p
2.2k
4.7k
100k
10
16V
100k
470
470
22k
47
16V
47
16V
0.022
22k
22k
22k
22k
0.047
1000p
4700p
0.047
0.047
0.022
22k
22k
0.47
50V
0.47
50V
4700p
47k
0.1
1
50V
1000p
220p
10k
0.1
M65850FP
4P
220p
50K
2.2
50V
2.2k
4.7k
2SC3052
0
0
50K
5P
10k
2.2k
5P
1000p
1000p
BA4558F-E2
0.022
100
16V
MIC SIG
MIC +10V
MIC CTL
MIC GND
(CHASSIS)
MIC 1
(MX)
MIC 2
(MX)
MIC
LEVEL
LEVEL
ECHO
NC
LPF1IN
LPF1OUT
OP1OUT
OP1IN
CC1
CC2
GND
NC
VCC
CLOCK
REF
OP2IN
OP2OUT
LPF2IN
LPF2OUT
(MX)
GND
LINE IN-R
LINE IN-L
GND
DETECT
AUDIO IN
HP CTL
HP-GND
L-OUT
R-OUT
D-GND
PHONES
MIC
MUTING
2
1
4
8
5
6
7
MIC AMP
ECHO AMP
3
(E2,E51,AR,MX)
(E2,E51,AR)
(E2,E51,AR)
(E2,E51,AR)
(SUFFIX-11)
(SUFFIX-12)
(SUFFIX-12)
(SUFFIX-11)
(SUFFIX-12)
(SUFFIX-11)
(Page 38)
(Page 38)
(Page 38)
(Page 34)
(Page 34)
(Page 34)
48
48
HCD-GX255/RG170/RG470
HCD-GX255/RG170/RG470
6-27. PRINTED WIRING BOARDS – CD-G Section – (MX model only)
: Uses unleaded solder.
•
See page 25 for Circuit Boards Location.
CN1004
L1001
L1002
Q1008
FB1001
JR1001
R1015
R1021
R1022
R1023
R1031
R1032
R1036
R1037
R1038
C1018
C1019
C1005
C1006
C1011
C1004
C1025
C1027
C1029
C1002
C1031
C1001
X1002
C1030
C1028
C1024
C1023
C1013
C1012
Q1007
C1008
C1010
C1026
E
E
1-865-725-
11
(11)
CD-G BOARD
(COMPONENT SIDE)
1
3
C1003
R1003
R1004
R1005
R1006
R1011
R1012
R1013
R1016
R1017
CN1001
R1020
R1029
R1030
R1033
R1034
R1035
C1015
C1016
C1022
C1007
C1014
Q1001
Q1002
Q1005
Q1006
Q1009
Q1010
CD-G BOARD
(CONDUCTOR SIDE)
1-865-725-
11
(11)
E
E
E
E
E
E
IC1002
CN803
C803
VIDEO OUT
BOARD
1-865-726-
11, 21
(11, 21)
J803
VIDEO
OUT
A
B
C
D
1
2
3
4
5
6
7
8
R1051
MAIN BOARD
CN331
MAIN BOARD
CN331
(SUFFIX-12)
(SUFFIX-11)
B2
B1
IC1001
IC1005
IC1006
IC1003
(Page 32)
(Page 36)
•
Semiconductor
Location
Location
Ref. No. Location
IC1001
C-4
IC1002
C-6
IC1003
D-3
IC1005
B-3
IC1006
A-4
Q1001
C-6
Q1002
C-7
Q1005
B-7
Q1006
C-7
Q1007
C-3
Q1008
D-3
Q1009
B-7
Q1010
A-6
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