Haier HL42XR1 Service Manual page 50

Horiaontal/vertical
pictureshaking
Televisionout of control
bars
or
Check for local interference such as an electrical appliance or
power tool.
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.
heck (F1/3A) fo:F 12V'.71
I
N
Check FI and peripheral power supply
F1 is damaged? ] I
N Y
[ Check p!wez"
supp[y net
fol low FI
N
Y
Check E33/470 p F/16V for 5V
Tu:Fn on the TV set(By button o:F
:['emote cont:Fol)
I Y
Check U6/MCU
1'Power supply(U7, U9))
2'Reset signal
3' Crystal
x I
Change U1/MP1410ES-LF or
D 17/S K34A-S MA
Check U1 fo:F 5V
output
yt
] i check. ,47
I
It's normal but the 1 I voltage is high
I CheckPinN°'4°f II
U1/MP1410-ES or
change U1
I
]
(
Were those 1
I LDO(U10,U13,U16,U18,U19,
_ etc.)worked normal?
_ J Y
LDO was damaged J
or the loader is in
short circuit
It's normal but the
voltage is Low
E33 was damaged "}
or the loader is in
J
short circuit
]
50