4-2
No audio output
Trouble shooting chart
Check the U12 power supply
Check the U12 power supply
(U17.4=-12V and U17.8=12V)
Check whether the audio
signal is right from the
U11.7 and U11.1
Check the connection of
the 6PIN cable from
CON3 on the main board
Connect the 6pin cable to
JP2 properly on output
board
solder the FB9 or FB11
properly
Yes
Yes
No
Go
Check whether the audio signal
is right from the U12.44 and
U12.45
No
Yes
Replace the U12
Replace the U17
Yes
NO
NO
Check whether the
FB11and FB9 solder is
OK on output board
Replace the output
board
Yes
No audio output
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Summary of Contents for DVDR3588H
Page 24: ...Output Board Print layout Bottom Side for DVDR3588H 93 6 6 6 6 家电维修资料网 免费下载各种维修资料 ...
Page 25: ...Output Board Print layout Top Side for DVDR3588H 93 6 7 6 7 家电维修资料网 免费下载各种维修资料 ...
Page 27: ...Power Board Print layout Bottom Side for DVDR3588H 93 6 9 6 9 家电维修资料网 免费下载各种维修资料 ...
Page 28: ...Power Board Print layout Top Side for DVDR3588H 93 6 10 6 10 家电维修资料网 免费下载各种维修资料 ...
Page 38: ...Main Board Print layout Top Side for DVDR3588H 93 6 20 6 20 家电维修资料网 免费下载各种维修资料 ...
Page 39: ...Main Board Print layout Bottom Side for DVDR3588H 93 6 21 6 21 家电维修资料网 免费下载各种维修资料 ...
Page 41: ...DVDR3588H 93 Ex ploded View 7 2 家电维修资料网 免费下载各种维修资料 ...