Pioneer XW-HTP550 Manuale di servizio - Pagina 37
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5
QQ
3 7 63 1515 0
(2-2) In a case where no sound is output
Are the IC12 and
IC13 in MAIN Assy
The +B and ground circuits are
most likely to be short-circuited,
or IC3302 is likely to be broken.
TE
L 13942296513
www
.
5
http://www.xiaoyu163.com
6
(A)
No
broken?
Yes
inputting an audio signal to the
jumper lead for servicing(*2),
It is most likely that the RX module
or Transmitter section is in failure.
To diagnosis of the Transmitter section
x
ao
u163
y
i
6
http://www.xiaoyu163.com
2 9
8
(B)
IC3302
No
STANDBY(pin 5) : "H"?
MUTE(pin 6) : "L"?
Yes
Detach the
RX module, then by
check if sound is
(*2) See page 39.
output.
Sound is output.
Q Q
3
6 7
1 3
1 5
co
.
XW-HTP550
7
9 4
2 8
Check the circuits around Q3305
and Q3511.
No
Check the audio lines sequentially
sound
from jumper lead to amplifier input
(IC3302 pin 2 and pin 4).
0 5
8
2 9
9 4
2 8
m
7
8
9 9
A
B
C
9 9
D
E
F
37
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