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Check 8
Sound is abnormal, picture display normal.
Power lamp: Lighted green
Internal speaker
Is Internal speaker of
sound menu selected ?
Yes
Which audio terminal is
connected for audio cable ?
AUDIO 1
Is audio input terminal of menu
selected correctly, for connected
audio terminal number ?
Yes
Does 14V appear on CN4
pin w on Audio PCB ?
Yes
Audio circuit faulty.
Replace Audio PCB.
(10 sec or more)
Start
Is audio cable connected
No
correctly ?
Yes
Which speaker is used ?
External speaker
Is External speaker of
sound menu selected ?
No
Yes
AUDIO 2
No
No
DC/DC power PCB
circuit faulty.
– 18 –
Connect audio cable correctly.
No
Select necessary speaker.
Select correct Audio input
terminal.
Replace DC/DC
power PCB Assy.
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