LG 26LC2R / 32LC2R (CHASSIS:LP61C) Service Manual ▷ View online
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TROUBLESHOOTING
1. No power
(1) Symptom
1) Front LED is No light
2) The Set doesn’t discharge little
2) The Set doesn’t discharge little
(2) Check process
Is plug in power cord?
Plug in a power cord
No
Yes
Is connect the line filter cable to PSU?
Connect a cable
No
Yes
Is normal the Fuse(F901) on PSU
Exchange the Fuse
No
Yes
Is connect the PSU and Main board with 13P cable ?
After remove the cable connect to PSU (except the EL11
connection cable), authorizes the AC voltage marking
on manual. When ST-BY 5V does not operate, replace
PSU.
connection cable), authorizes the AC voltage marking
on manual. When ST-BY 5V does not operate, replace
PSU.
Connect a 13p cable
No
Yes
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2. Cannot Power on
(1) Symptom
1) Front LED is Red, but doesn’t change Green ( Cannot turn on the SET )
2) Don’t operate power on using a Remocon or Local key.
2) Don’t operate power on using a Remocon or Local key.
(2) Check process
Pull off the power cord and wait until discharge entirely
(you can watch the LED on a main board through
a Back cover. If LED is off, a discharge is finished)
Then plug in the power cord again. Has it still a problem?
(you can watch the LED on a main board through
a Back cover. If LED is off, a discharge is finished)
Then plug in the power cord again. Has it still a problem?
Yes
Is connect the IR board, Local key, and main board
with 10p and 4pin cable?
with 10p and 4pin cable?
Connect cables.
No
Yes
Is normal the IR board and Local key?
Exchange the IR and Local key
No
Yes
Is normal the Main board?
( Check voltages of P900 in main board )
( Check voltages of P900 in main board )
Exchange the Main board
No
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3. Protect mode
(1) Symptom
1) After once shining, it does not discharge minutely
from module
2) The Rely falls down (The sound is audible “click”)
3) The front LED turn Green to Red
3) The front LED turn Green to Red
(2) Check process
Exchange the PSU
No
Yes
Is normal cables?
Do cable connect well each wafer?
Is normal Main B/D?
Is normal PSU?
Does the Low/High voltage operate normally?
No
No
No
No
Yes
Disconnecting cable(P301, P900, P1001)
at main B/D, are Voltages normal?
at main B/D, are Voltages normal?
Exchange the cable
Yes
Exchange main board
4. No raster
(1) Symptom
1) Front LED is Green
2) The Set doesn’t discharge little
2) The Set doesn’t discharge little
(2) Check process
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Exchange the PSU
No
Yes
Is normal cables?
Do cable connect well each wafer?
Is normal Main B/D?
Is normal PSU?
Does the Low/High voltage operate normally?
No
No
No
No
Yes
Disconnecting cable(P301, P900, P1001)
at main B/D, are Voltages normal?
at main B/D, are Voltages normal?
Exchange the cable
Yes
Exchange main board
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