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Excellent Service Manual and best price on the Internet. This Service Manual covers everything you could ever need including full circuit schematics, component layout diagrams, stripdown procedure and full parts list/breakdown. I needed this to carry out a modification to one of these headunits and this manual covered everything I needed. Fast delivery, processed within a few hours.
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Thought I would never find a copy of the Technics SX-EN2 Service Manual until I found Owner-Manuals.com. Price was very fair and I received the download promptly. While a photocopy, it is quite readable and includes all the pertinent information and diagrams. Thank you Owner-Manuals!
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I really like this manual and it's reliable.I found and bought easly.thank you.
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Thank you very much. the Instruction corresponds to my expectations. Sent it in time. I don't regret that paid money.
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Good quality. Quick service. I recommend to everyone.
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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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