Abnormal Power On/Off - Olevia 232-S12 Service Manual

TITLE
LCD TV For 232-S12

4-2 Abnormal Power On/Off

Trouble Condition
Abnormal Power
On/Off
Note: Before
proceeding confirm
that Power cable is
connected and that
proper voltage is
being fed to TV.
(Check power
switch located next
to power input and
confirm that it's
ON.)
Service Manual
No Power
Abnormal Power
Off
Shut down
Source can't
switch
Doc No.
Version
Page
Check Item
Step1:
Check Power Supply, Con.
CN904–pin 7 to ground = 5VS
Con .CN904 pin 8 to ground =
5V
OK
Step2：
Check Keypad board
CN1-pin1 to ground = 5V
or Check D1 lighting?
OK
Step3：
Check System Board
CN4 pin1 to ground = 5Vs,
and pin3 to ground = 5V,
1.0
7/44
Replace Material
Fail
Replace Power
supply
Fail
Replace Keypad
board
Fail
Replace System
board
Test
Finish
Test