Haier HL26R1 - R-Series - 26" LCD TV, Service Manual

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44
Horiaontal/vertical bars or
picture shaking Check for local interference such as an electrical appliance or
power tool.
Television out of control
Disconnect the television from power supply and 10 seconds
later, connect the television to the power supply. If the problem
still exists, contact authorized after-sales service for technical
assistance.
9-2. Power Supply Board failure check.
Check (F1/3A) for 12V？
Check F1 and peripheral power supply
Check E33/470μF/16V for 5V
F1 is damaged？
Were those
LDO(U10,U13,U16,U18,U19,
etc.)worked normal?
OK
Turn on the TV-set(By button or
remote control)
Check power
supply net
follow F1
Check U6/MCU
1:Power supply(U7、U9))
2:Reset signal
3:Crystal
LDO was damaged
or the loader is in
short circuit
OK
Check U1 for 5V
output
Change U1/MP1410ES-LF or
D17/SK34A-SMA
Check L9/47
μ
H
It’s normal but the
voltage is high
It’s normal but the
voltage is Low
Check Pin No.4 of
U1/MP1410-ES or
change U1
E33 was damaged
or the loader is in
short circuit
Y
N
Y
N
N Y
Y N
Y
N
Y N