Trouble Shooting - Pioneer XW-HTP550 Service Manual

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7.1.2 TROUBLE SHOOTING

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1. Transmitter side
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(1) In a case where the power is not turned on (the channel indicator is not on)
Replace the AC adaptor.
Check around IC8051.
The module may be broken.
Replace the module.
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L 13942296513
(2) In a case where no sound is output
The module may be broken.
Replace the module.
Check the Audio Lines sequentially
from WIRELESS IN to CN8201.
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No power
(The channel indicator is not on.)
No
No
No
No
No
The module may be broken.
Replace the module.
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Is the
AC adaptor's
Voltage
active?
Yes
Is V+5 voltage
active?
(CN8201 pin 1,2,
C8054)
Yes
Is either of potential
of CN8201 pin5-8
active?
Yes
LED(D8501-D8504) or
Transistor(Q8501-Q8504)
may be broken.
Q Q
3 6 7 1 3 1 5
No sound
Is TUNED LED
in Receiver
lit?
Yes
Has the signal inputted
from WIRELESS IN
reached to AIR(pin11)
AIL(pin12) in CN8201?
Yes
co
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XW-HTP550
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9 4 2 8
0 5 8 2 9 9 4 2 8
m
7
8
9 9
A
B
C
9 9
D
E
F
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