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The Service Manual received was helpful. Good copy of original document.. I recomend all of my friends about this technical page.
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very good quality that can be magnified several times, and it remains readable.
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7. GENERAL INFORMATION
7.1 DIAGNOSIS
7.1.1 TROUBLESHOOTING
(1) No power (POWER LED not lit)
No power (POWER LED not lit)
A
Has the fuse blown?
YES
NO
PROTECT activated
Diagnose the unit, referring to the explanation of the Protection function.
B
Replace fuse FU1. NO NO Is the POWER LED lit? YES YES Completed. Check if there is short-circuiting. Short-circuiting between +B and GND is highly likely: POWER ASSY : CN12 MAIN ASSY : CN3304,CN3305 AMP ASSY : CN3302 REGULATOR ASSY : CN3303 Has the fuse been blown again?
C
(2) No sound
No sound
D
NO
Is TUNED lit?
Check the voltage at each part in the module. Check the voltage at the following parts: � Transmitter: TX ASSY: CN8201 (Pin 11)
U6 (5V) U17 (5V) U21 (5V) U22(3.3V) [T22] [T33] [T17] [T20]
E
YES
Narrow down the point of failure by checking the AUDIO lines. � Wireless speakers R52 � U2 (Pin 76) � U28 (Pin 7) � CN3701 (Pin 5) � IC3001 (Pin 13) � CN3304 (Pin 1) � CN3306 (Pin 5) � Transmitter JA8202 � CN8201 (Pin 6) � U9 (Pin 2) � U1 (Pin 76) � R74 In a case in which no sound is output from the AMP module Besides the failure in the POWER IC, activation of the MUTE function is possible. Check that Pin 6 of CN3304 is "L" and that Pin 4 of CN3304 is "H." XW-DV1WS
5 6 7
� Wireless speakers MAIN ASSY: CN8201 (Pin 1), RX module: D16 cathode
D16 Cathode [T32] U12 (5V) [T25] U19 (3.3V) [T35]
Note: The numbers in brackets are for the test terminals in the module.
F
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