XW-HTP550
35
5
6
7
8
5
6
7
8
C
D
F
A
B
E
7.1.2 TROUBLE SHOOTING
(1) In a case where the power is not turned on (the channel indicator is not on)
1. Transmitter side
No power
(The channel indicator is not on.)
Check around IC8051.
Replace the AC adaptor.
LED(D8501-D8504) or
Transistor(Q8501-Q8504)
may be broken.
The module may be broken.
Replace the module.
Is the
AC adaptor's
Voltage
active?
Is either of potential
of CN8201 pin5-8
active?
Is V+5 voltage
active?
(CN8201 pin 1,2,
C8054)
No
No
No
Yes
Yes
Yes
(2) In a case where no sound is output
No sound
Check the Audio Lines sequentially
from WIRELESS IN to CN8201.
The module may be broken.
Replace the module.
Is TUNED LED
in Receiver
lit?
No
The module may be broken.
Replace the module.
No
Yes
Yes
Has the signal inputted
from WIRELESS IN
reached to AIR(pin11)
AIL(pin12) in CN8201?
