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Speaker No Sound (Test signal: ≦0.5Vrms @1kHz sine waveform)
Please ensure the signal cable is connected
and has output and remove the earphone.
Audio Problem
No Audio issue
No Audio
Have you enabled
No
MUTE function
and speaker OFF?
Check U802 (26"only) power
Pin 6,7,12,13=12Vdc
U801(15"/19"/22" only) power
pin# 4,9,16,21=5V
Yes
Check U801, U802
audio input
Yes
Check U801, U802
output signal
Yes
Check net "MUTE" and "HP"
circuit
Disable MUTE function from
Yes
remote control and increase
Volume
Note: Speaker will be muted when
headphone is plugged.
No
No
Check equipment output
NO
U801, U802 fail
Check power bd 12V
83
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