Diagnosis Of The Amplifier Section - Pioneer XW-HTP550 Service Manual

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7.1.4 DIAGNOSIS OF THE AMPLIFIER SECTION

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The Amplifier section can be diagnosed even if the transmitter section is not available.
Input the Audio Signals to the Jumper Wire for service use indicated below.
At that time, remove the RX MODULE.
A
MAIN ASSY
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L 13942296513
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6
SIDE B
312
315
GNDRF
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2 9
8
Jumper Wire for service for Signal Input
R3513
R3514
R3512
R3511
R12
D13 D3511
Q Q
3 6 7 1 3 1 5
R11 D12
D15
D3503
D16
R16
D3453
R3464
R3465
R3459
R3458
Q3453
R3463
R3460
D3452
D3451
R3371 R3372 C3374
C3375 C3376 R3374
R3377 R3378 R3376
R3379 R3380
C3396 C3395
C3392 C3391
C3386
R3455
R3405
co
.
XW-HTP550
7
9 4 2 8
1.NC
2.NC
3.GNDD
4.VD+9
5.GNDRF
6.ROUT
7.GNDA
8.LOUT
9.GNDRF
10.GNDRF
11.V+9
12.V+9
D14
0 5 8 2 9 9 4 2 8
R3997
R3995
R3461
R3996
C3701
D3371
C3373
R3373
R3375
R3381
C3381
C3377
R3308
C3382
R3307
R3382
m
Lin
8
9 9
A
B
C
9 9
D
E
Rin
F
39
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