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Sony HCD-GT55 Service Manual

Sony HCD-GT55
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HCD-GT22/GT44/GT55
4747
HCD-GT22/GT44/GT55
7-23. SCHEMATIC DIAGRAM – AMP Board (GT44) –
• See page 58 for IC Block Diagrams.
M2
BOARD
(4/4)
MAIN
CN031
TRANS
CN903
BOARD
P2
SUB WOOFER
CN502
BOARD
Q2
IC B/D
-50.4
-51
51
0
0
0
0
49.8
0
0
0.6
0
0
0
15.6
0.7
15.6
0
0
15.5
0
0.2
0.2
1.8
15.6
15.6
0
0
0
15.4
1.9
0
15.40
31.6 2.6
3.2
0
0
0.8
0.8
100V
0.1
C403
100V
0.1
C404
2SC3052EF-
T1-LEF
Q481
2SC3052EF
-T1-LEF
Q482
2SC3052EF
-T1-LEF
Q483
2SC3052EF
-T1-LEF
Q484
2SC3052EF-T1-LEF
Q486
2SC3052EF-T1-LEF
Q487
50V
47
C447
50V
47
C448
50V
2.2
C486
50V
10
C441
50V
10
C442
10V
100
C481
100p
C445
100p
C446
1000p
C443
1000p
C444
47k
R443
47k
R444
47k
R447
47k
R448
47k
R465
47k
R487
4.7k
R481
22k
R457
22k
R458
22k
R488
330
R483
2.2k
R441
2.2k
R442
R491
10k
10k
R482
100k
R401
100k
R402
100k
R403
100k
R404
47k
R459
47k
R460
100kR466
R480
33k
47k
R484
47k
R485
100k
R486
R497
120k
100
R407
100
R417
100
R418
100
R419
10
R467
10
R415
10
R413
10
R414
10
R412
10R416
10
R420
10
R421
10
R422
10
R423
10
R424
10
R425
10
R453
10
R454
10
R461
10
R462
1k
R445
1k
R446
1k
R455
1k
R456
1k
R499
TH441
5W
0.22
R451
5W
0.22
R452
0.1
C451
0.1
C452
0.1
C453
0.1
C454
2SC5625
Q441
2SC5625
Q442
1k
R498
R493
47k
R492
1k
C488
22
35V
E
EP401
1.7uH
L441
1.7uH
L442
RY441
-1
-2
1
3
4
5
6
7
CN443
7P
+VCC
GND
-VCC
PROTECT
RELAY+
RELAY-
C411
1000p
1
2
3
4
5
6
7
8
9
10
11
12
13
13P
CN441
GND(AC-3_RELAY)
VFL
STK_MUTE
POWER_GND
UNREG.16V
IN-L
AMP-A_GND
IN-R
PROTECT
RELAY_B+
HP R-OUT
HP-GND
HP L-OUT
198765432151413121110
STK403-130-E
IC441
-PRE
-Vcc
+Vcc
CH1_OUT+
CH1_OUT-
CH2_OUT+
CH2_OUT-
+PRE
SUB
GND
CH1-IN
CH1-NF
ST-BY
CH2-NF
CH2-IN
1
3
4
CN442
4P
AC
GND
AC
63V
47
C489
63V
100
C490
JL401
JL403
JL405
JL411
JL413
JL426
JL427
JL429
MC2836
D441
22k
R426
47k
R427
2SC3052EF-T1-LEF
Q489
2SC3052EF-T1-LEF
Q480
2SC3052EF-T1-LEF
Q488
2.2k
R490
2.2k
R489
15k
R440
ISA1235AC1TP-1EF
Q485
D10XB20
D401
MA111-TX
D483
MA111-TX
D481
MA111-TX
D443
2200
63V
C405
2200
63V
C406
1
R495
100
R496
1/2W
47R449
AMP BOARD
IC441
POWER AMP
(CHASSIS)
R
+
SPEAKER
-
-
+
L
JK441
Q483,484
TEMPERATURE
DETECT
Q481,482
DC DETECT
OVER LOAD
DETECT
DETECT
OVER LOAD
PROTECTOR
PROTECT DETECT
RELAY DRIVE
Q480,486,488
A
1012
J
H
B
1311
C
78
I
14
F
96
K
4 15 163
G
D
5
E
12
STANDBY SWITCH
OVER LOAD DETECT
~
~
(Page 41)
(Page 57)
(Page 49)
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1
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3
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1
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1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
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5
1
5
1
3
6
7
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Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

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Sony HCD-GT55 Specifications

General IconGeneral
BrandSony
ModelHCD-GT55
CategoryStereo System
LanguageEnglish

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