Olevia 232-S12, Service Manual

Page: 7 / 44

Doc No.
Version 1.0
TITLE
Service Manual
LCD TV For 232-S12
Page 7/44
4-2 Abnormal Power On/Off
Abnormal Power
Off
Shut down
Source can’t
switch
Abnormal Power
On/Off
No Power
Replace System
board
Replace Keypad
board
Fail
Replace Power
supply
Fail
Fail
OK
OK
Test
Finish
Trouble Condition Check Item Replace Material Test
Step3
：
Check System Board
CN4 pin1 to ground = 5Vs,
and pin3 to ground = 5V,
Step2
：
Check Keypad board
CN1-pin1 to ground = 5V
or Check D1 lighting?
Step1:
Check Power Supply, Con.
CN904–pin 7 to ground = 5VS
Con .CN904 pin 8 to ground =
5V
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.)