Olevia 237T Service Manual

TITLE
Service Manual
LCD TV For 237-T11
Doc No. SM_237-T11_19Nov07
Version 1.2
Page 14/72
Company Confidential-DRAFT
4-3 LED is Malfunctioning、
、、
、Keypad Problem
Trouble Condition
Check Item
Replace Material
Test
LED is not working
LED is Malfunctioning
Replace System
board if there is no
voltage
Replace board if
there is no voltage
Secure connection
or replace cable
LED flashes
Check Power supply
Con.
J101-pin1 to ground =5V
Replace Power
Supply if there is
no voltage
Fail
Fail
Fail
OK
OK
OK
Keypad doesn’t work
Replace Cable
Secure connection
Fail
Test
Finish
Step1
：
Check connector CN 10 on
System board to CN1
located on Keypad board for
a loose connection
Step2
：
Check connector CN 10 on
System board to CN1
located on Keypad board for
a broken cable
Step2
：
Check Keypad board
D1 & CN1-pin 1 to
ground = 5V
Step1
：
Check CN 10 on system
board to CN 1 on
Keypad board for a
loose connection or bad
cable
Step3
：
Check System board
CN10-pin1 to ground
= 5V
Fail
Fail
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.)
Step 3
：
Replace Keypad Board
OK
Step 4
：
Replace System Board
Fail

Olevia 237T Specifications

General

Brand	Olevia
Model	237T
Category	LCD TV
Language	English