Schematic Diagram - Power Board (Rg490) - Sony HCD-RG490 Service Manual

7-24. SCHEMATIC DIAGRAM – POWER Board (RG490) –
C441
10 R441
50V 2.2k
R434
0
C443 R443
0.001 47k
C448
22
35V
R444
47k
R446
1k
C444
0.001
C446
100p
R435
0
R442
2.2k
C442
(AEP,RU)
10
50V
C493 C494
2200p 2200p
CN443
6P
+VCC
NC
GND
-VCC
OVERLOAD/DC DETECT
(Page 51)
RELAY+
RELAY-
HCD-RG490/RG590
4
IC441(1/2)
STK403-130
C445
100p
10
POWER AMP
R491
10k
D483 R492
R445 1SS355 1k
Q489
1k
2SC5625
STANDBY
SWITCH
C447
R493 R457
22
C489 47k 22k
35V C488
C491 47
22
63V
0.1
35V
(AEP,RU) C490
100
D441
63V
MC2836
R495 R458
1 22k
R448 47k
Q441,442
OVER LOAD
9
DETECT
14
IC441(2/2) 7
STK403-130
6
2
15 3
1
8
JW402
R496
R449
100
47 1/2W
R447 47k
JW401
R497 R466 R465
Q481,482
R451 100k 100k 47k
0.22 DC DETECT
5W
C451
0.1
Q481
Q482 2SC3052
R455
2SC3052
1k C453
0.1
R483
Q441
2SC5625 R425 R453 C481
10 10 100
10V TH441
R459 D481 R424 R420
47k 1SS355 10 10
R460
47k Q442
2SC5625 R423 R421
10 10
Q485
R422 R454
2SA1235
10 10 R482 C486
PROTECTOR 10k 2.2
50V
R456
1k C454 R481
0.1 4.7k
C452 R487
Q487
0.1 47k
2SC3052
PROTECT
DETECT
R498
1k
R440 22k
Q486,488
R499 R490
R452 RELAY DRIVE 1k 4.7k
0.22
5W
R488
Q486 Q488
22k
2SC3052EF 2SC2411K
47 47
L441
R461 10 R411
-1
R413 10 R412
L442
-2
R462 10 R414
Q483,484
R416 10 R415
TEMPERATURE DETECT
Q483 RY441
R485
2SC3052
100k
R480 R484
100k 100k D443
1SS355
22
Q484
R417 R418
2SC3052
100 100
R486 R407 R419
100k 100 100
C411
0.01
2
C403
1 4
0.1
100V
C405
R401 D401
2200 3
100k D10XB20
63V
C404
0.1
C406
R402 100V
2200
100k
63V
HCD-RG490/RG590
Ver. 1.1
10
10
10
10
SP GND
L
SP(L)
JK441
C459
SPEAKER
1000p 100V
SP GND
C460 (AEP,RU)
R
1000p 100V
SP(R)
(CHASSIS)
EP401
CN441
13P
SP L-OUT (EXCEPT MX)
SP-GND
SP R-OUT
SP RELAY B+
(Page 39)
PROTECT
R-OUT
AMP-A-GND
L-OUT
UNREG +16V
PWR-GND
(Page 43)
STK-MUTE
-VFL
GND (MX)
CN442
3P
AC1
NC
GND
AC1
(Page 59)