Haier TV-8888-42 Service Manual page 27

5. Picture display but no sound
Picture exists but no sound
Cut of C601, connect red pen of multi-meter(R*1K) with ground,
and black pen tap Pin1 of N602 if there is snapping
Cut off collection electrode of V602, use
Power amplifier is normal.
black pen of multimeter tap Pin1 of
Check N101 and external SIF
N601 if there is snapping sound
circuit
Yes
No
Check muting circuit Check to see if +19V
exists
and V601\V602
Check SIF circuit and speaker Inspect +19V
power supply
27