Schematic Diagram -Power Board - (Gx255/Rg170) - Sony HCD-GX255 Service Manual

6-20. SCHEMATIC DIAGRAM – POWER Board – (GX255/RG170)
C441
10 R441
50V 2.2k
JR441 C445
0 100p
R445
1k
C447
C443 R443
22
0.001 47k
35V
C491
1000p
C448
(AEP,EE,RU)
22
35V
R444
47k
R446
1k
C444
0.001
14
C446
100p
JR442
0
15
R442
2.2k
(AEP,EE,RU) C442
10
50V
C493 C494
1000p 0
HCD-GX255/RG170/RG470
POWER AMP JW401
4
IC441(1/2)
∗
10
R469
2.2k
∗IC441
(AEP,EE,RU)
STK403-090 (CND)
STK403-100 (E2,E3,E51,EA,AR,AUS)
STK433-030 (AEP,EE,RU)
R491
47k
D483
1SS355 R492
R457
TE-17 1k
22k
Q489 Q441
2SC3052EF 2SC5625
STANDBY
Q441,442
SWITCH R493 R459
OVER LOAD
C489 47k 47k
C488
47 DETECT
22
50V
35V
R460
C490
47k
100
D441
50V
MC2836
R495 R458
1 22k
R448 47k
R456
1k
9
R468
2.2k
(AEP,EE,RU)
IC441(2/2) 7
∗
6
2
3
1
8
JW402
R496
R449
100
47 1/2W
R447 47k
(EXCEPT AEP,EE,RU)
JW422
R497 R466 R465
Q481,482
R451 100k 100k 47k (AEP,EE,RU)
0.22 DC DETECT
2W TH443
C451
Q481
0.1
Q482 2SC3052
2SC3052 EF
R455
EF
1k C453
0.1
TH441
R425 R453 C481
10 10 100
(EXCEPT AEP,EE,RU)
D481 10V
1SS355 R424 R420
TE-17 10 10
Q442
2SC5625 R423 R421
10 10
Q485
R422 R454
2SA1235EF
10 10 R482 C486
PROTECTOR 10k 2.2
50V
C454 R481
0.1 4.7k
C452 R487
Q487
0.1 47k
2SC3052EF
PROTECT
DETECT
R498
1k
R440 22k
R499 R490
R452 1k 4.7k
0.22
2W
R488
Q486 Q488
22k
2SC3052EF 2SC3052EF
RELAY DRIVE RELAY SWITCH
41 41
L441
R461 10 R411
R413 10 R412
L442
R462 10 R414
Q483,484
R416 10 R415
TEMPERATURE DETECT
Q483 RY441
2SC3052
R485
EF
100k
R480 R484
100k 100k D443
1SS355TE-17
R483
22
Q484
2SC3052
R417 R418
EF
100 220
R486 R407 R419
100k 100 100
∗C411
1000p (AEP,EE,RU) C411
∗
0.01 (EXCEPT AEP,EE,RU)
JW441
C403
0.1
100V
D401
C405 R401 ∗
∗ 100k
C404
0.1
C406 R402 100V
∗
100k
∗C405,406
2200 42V (AEP,EE,RU)
2200 50V (EXCEPT AEP,EE,RU)
∗D401
D3SBA20-4101 (AEP,EE,RU)
D10XB20 (EXCEPT AEP,EE,RU)
HCD-GX255/RG170/RG470
10
10
10
10
SP GND
(L) JK441
SP(L)
SPEAKER
C459 IMPEDANCE
1000p SP GND
USE 6−16Ω
C460 (AEP,EE,RU)
(R)
1000p
SP(R)
(CHASSIS)
EP401
CN441
13P (SUFFIX-11)
SP L-OUT
J1
SP-GND
SP R-OUT
MAIN BOARD
RELAY B+
(3/3)
CN031
PROTECT
(Page 35)
R-OUT
AMP-A-GND
L-OUT
J4
R437
UNREG +16V
10k
PWR GND
MAIN BOARD
(3/3)
STK MUTE
CN031
NC
(Page 39)
GND
(SUFFIX-12)
CN442
3P
AC1
NC
GND
AC1
(Page 55)