Haier L32A7A-A1 Service Manual page 10

②
Video Without Signal
TV Without
with
Check tuner 5V supple
Yes
Check if the bus control is normol
Yes
Check if the tuner is output
Yes
Check if the signal is input the
picture decode chip
Yes
Check if the chip supple,crystal
osciuator or bus control is normal
Yes
Chip is damaged,replace
without
Check and repair 5V supple part
No
Deck and repair bus control part
No
Tuner is damaged,replace
Check and repair if the signal
No
circuit is erroneous
Check an repair the chip relevant
No
circuit