Alba L42M1, Service Manual

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42 ″ LCD TV ALBA L42M1
32
Abnormal Display
No Sound
Check TV system setup
Reset source
NG
Replace the filter or resistance
RF signal
Check Tuner
Replace Tuner
Check LVDS cable
Check input
Replace LVDS cable
Check panel
Replace panel
OK
OK
NG
OK
OK
NG
OK
OK
NG
OK
Check the source
Reset source
NG
OK
Check input signal
TV SIF
Check TV
system
Reset TV system
NG
Check TU201
NG
Change TU201 Check U400
OK
OK Change U400
NG
Check U600
OK
NG
Change U600
Check speaker
NG
Change speaker
Check if mute
OK
Check signal filter circuit
Check the source