Schematic Diagram - Front Rear Amp Board - Sony HCD-FL7D Service Manual

8-39. SCHEMATIC DIAGRAM – FRONT REAR AMP Board –
C451 R451
∗ 1k
∗
C401,451
C453
10 50V (EXCEPT US,CND) 100p
10 100V (US,CND)
C452 R452 R453
470p 47k 470
∗
C404,454
47 10V (EXCEPT US,CND)
NO801 47 50V (US,CND)
7P
C454
FRONT R
∗
FRONT GND
FRONT L
C404
∗
FRONT GND
REAR R
C402 R402 R403
REAR GND
470p 47k 470
(Page
REAR L
71)
C401 R401 C403
∗ 1k 100p
∗ R418
56k (US,CND,AEP,UK)
82k (EA,MX,SP,KR)
EP402
C469
100p
(CHASSIS)
(AEP,UK,KR)
C481 R481
∗ 1k
C483
100p
C482 R482 R483
∗ C431,481 470p 47k
10 50V (EXCEPT US,CND)
10 100V (US,CND)
C484
∗
C434,484
47 10V (EXCEPT US,CND)
47 50V (US,CND)
C434
C432 R432 R433
470p 47k 680
C431 R431 C433
∗ 1k 100p
POWER AMP
IC401
STK402-070S
R455
0.22
2W
R457
R456
1k
0.22
2W
R454
47k
R458
15k
Q423
2SC2785
R411 STANDBY
100
SWITCH Q451
R419 R428 R427
2SC2785
10k 15k 33k
C422 OVER LOAD
47 50V
DETECT
R412 D421
100 1SS133T
R420 C407 C408
1 22 22
50V 50V
C420
1000p
C419
100p
R418 R417
* 100k
R416 D402
100k 1SS133T
Q419
Q419,420
R404 2SC2785
47k THERMAL
Q420
2SC2785 DETECT
TH401 2SC2785
OVER LOAD
DETECT
R406
R407
0.22
1k
2W
R405
0.22
2W
POWER AMP
IC431
STK402-070S
R437
1k
R485
0.22
2W
R486
0.22
2W
R484 R470 R487
47k 1 1k
680
Q481
2SC2785
∗ C470
1000p R469 R488 OVER LOAD
10k R461 22k
DETECT
100
(US,CND)
∗ D481
C472
1SS133T
47
R462
50V
100
C457 C458
22 22
50V 50V
R434
47k
C455 C456 R460
0.1 0.1 10
D491
D15XB20 3
1 4
(MX)
R421
2.2k 2
C493
R491 C491
2200
Q421,422 100k 0.1
50V
Q421 STANDBY
R422
2SA1175
22k SWITCH
C494
R492 C492
2200
R423 100k 0.1
50V
68k
Q422
2SC2785
C421
R424 R426 R425
47
5.6k 2.2k 2.2k
50V
(AEP,UK,KR)
R410
10
Q401
C406
0.1
C405
0.1
D432
1SS133T
D431
1SS133T
Q431
2SC2785
R438 OVER LOAD
22k
DETECT
R471 R475
2.2k 2.2k
Q471
2SA1175
R472
22k
R473 Q472
68k 2SC2785
C471 Q471,472
R474
C485 47
5.6k STANDBY
0.1 50V
SWITCH
C486
0.1
R476
R490 2.2k
10
R440 C436 C435
10 0.1 0.1
R436
0.22
2W
R435
0.22
2W
77 77
NO701
6P
AC1(VL)
AC1(VL)
AC-GND
AC-GND
AC1(VL)
AC1(VL)
(Page 95)
EP401
C495
0.1
(CHASSIS)
CN402
18P
STK MUTE
OVER LOAD
POWER GND
POWER GND
FRONT R
FRONT R
FRONT R GND
FRONT R GND
FRONT L
FRONT L
FRONT L GND
FRONT L GND
(Page 81)
REAR R
REAR R
REAR GND
REAR GND
REAR L
REAR L
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER
The components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specified.
HCD-FL7D
Les composants identifiés par une marque 0 sont
critiques pour la sécurité. Ne les remplacer que
par une pièce portant le numéro spécifié.