Olevia 232-S12 User manual

Doc No.
Version 1.0
TITLE Service Manu
LCD TV For 232-S12 Page 1/44
Service Manual
LCD TV For 232-S12
Doc No.：
Version：1.0
Total Pages：41
Approval Made by Revise by Revise by
Hans Chung
2007/1/29 Kanzi Lee 2007/1/29
Daniel Villa
12/8/06
Troubleshooting/disassembling
/Firmware Update/EDID
Update/Manual Structure
Randal J. Cook
12/7/06
Introduction

Doc No.
Version 1.0
TITLE Service Manual
LCD TV For 232-S12 Page 2/44
Table of Contents
1. Introduction………………………………………………………………….......3
1-1 Preface……………………………….……………….……………………………………..3
1-2 Caution…………………………………………………..………………………………….3
1-3 Warning………………………………………………………..……………………………3
2. Specifications…………………………………..……………….…………………4
3. Wiring Diagram…………….……………………………………….…………….5
4. Trouble shooting flow chart…………………………………………………….6
4-1 Abnormal Display………………………………………………………………………....6
4-2 Abnormal Power On/Off…………………………………………………………………..7
4-3 LED Light Abnormal Display、Keypad Problem………………………………………..8
4-4 Image Abnormal Display………………………………………………………………….9
4-5 Audio Abnormal Output…………………………………………………………………..10
4-6 The Other Abnormal Display……………………………………………………………..11
5. Disassembly……………………………………………………………………12
5-1 Stand.……………………………………………………….……………………………….12
5-2 Back Cover……………………………………………………….…………………………12
5-3 System Board……………………………………………………………………………….13
5-4 Power Module………………………………………………………………………………14
5-5 Panel Module……………………………………………………………………………….15
5-6 Speaker..…………………………………………………………………………………..16
5-7 Keypad Board………………………………………………………………………………16
6. Firmware upgrade………………………………………………………………..17
7. EDID write in and ADC correction and Parameter Adjustment………………..20
7-1 EDID write in……………………………………………………………………………...20
7-1.1 EDID tools………………………………………………………………………………20
7-1.2 EDID write in……………………………………………………………………………20
7-2 ADC Correction and Parameter Adjustment………………………………………………21
7-2.1 ADC Correction…………………………………………………………………………21
7-2.2 Parameter Adjustment.……………………………………………………………………22
8. Exploded view…………………………………………………………………...23
9. Parts List and Photo……………………………………………………………...25
9-1 Parts List…………………………………………………………………………………...25
9-2 Parts Photo…………………………………..……………………………………………26
9-3 Parts List(Low bright panel)…………………………………………………………...33
9-4 Parts Photo(Low bright panel)……………..……………………………………………34
10. Block Diagram………………………………………………………………...41

Doc No.
Version 1.0
TITLE Service Manual
LCD TV For 232-S12 Page 3/44
1. Introduction
1-1 Preface
This service manual describes module-level LCD TV repair for qualified service personnel.
This service manual also includes selected production troubleshooting information for
electronic technicians and engineers.
1-2 Caution
This service manual contains important safeguards and instructions that must be followed for
the safe and proper servicing of this TV.
1-3 Warning
1. Advise customers to follow all operating instructions and safety precautions that have been
furnished with the product.
2. Unplug the ac line cord before cleaning or disassembling the product.
3. Check the ac line cord and plug for wear or damage and replace as necessary.
4. Do not use liquid cleaners or aerosol cleaners to clean the display.
5. Do not place the product on an unstable table or cart. It can cause the product to fall,
resulting in injury and product damage. If a cart is used, use caution when moving the
cart/apparatus combination to avoid injury from tip-over.
6. Use only replacement parts specified by the manufacturer or replacement parts with the
same performance and safety characteristics. Use of substitute parts with different
characteristics can result in fire or electric shock.
7. Do not hit the LCD panel. In case of breakage, use care when removing broken glass.
8. Keep the product away from heat sources such as radiators, heaters, stoves, and other
heat-generating apparatus.
9. Do not block any ventilation openings.
10. Do not use the product near water; for example, near a bathtub, washbasin, kitchen sink
laundry tub, in a wet basement, or near a swimming pool.
11. If the product uses a grounded-type ac plug and line cord, but the location has a 2-prong
receptacle, advice the customer to contact a qualified electrician to replace the outlet.

Doc No.
Version 1.0
TITLE Service Manual
LCD TV For 232-S12 Page 4/44
2. Specifications
PRODUCT SPECIFICATIONS
LCD Panel 32" TFT
Power Management
(Standby Mode) ＜1W
Displayable Resolution VGA 1360*768 max.
Pixel Pitch 0.17025mm x 0.51075mm x RGB
LCD Display Color 16.7M colors(8-bits colors).
Viewing Angle 178(H)/178(V) (CR>10)
Response Time 8ms (Gray to Gray)
Active Display Area 697.685mm x 392.256mm (31.51" diagonal)
RF Tuner
Combo RF (NTSC/ATSC)
Power Voltage : 100~240 V
Consumption : 164W
Speaker 10W
Compliance FCC, cUL, CSA, Energy Star
Temperature Operating: -10℃~40℃
Storage: -10℃~60℃
Weight w/o stand 33.63lbs
Weight w/ stand 35.5lbs
Gross Weight 45.421lbs
Dimensions (WxDxH) 37.76 inches x 9.37 inches x 22.20 inches
Carton Dimensions
(WxDxH) 42.80 inches x 12.40 inches x 25.35 inches

Doc No.
Version 1.0
TITLE Service Manual
LCD TV For 232-S12 Page 5/44
3. Wiring Diagram

Doc No.
Version 1.0
TITLE Service Manual
LCD TV For 232-S12 Page 6/44
4. Trouble shooting flow chart
4-1 Display Problems
Note: Refer to the Wiring Diagram during troubleshooting for a visual of inter-connections
when indicated by this symbol.
Trouble Condition Check Item Replace Material Test
Display Problems
Abnormal display
1. No video Image
2. Video noise
3. Display flashes
4. Abnomal color
Bright spots
Dark spots
Backlight uniformity
Light leakage
Spot & Simi
Ghosting
Dust & Scratch
1.Replace Powe
r
Module if voltage
is missing.
2.Replace Syste
m
board if voltage is
missing.
Step1：
1. Check for a loose video
cable connection
2. Check video cable
3. Check source settings
4. Check TV input
5Ch kS Ch l
1. Reconnect cable
2. Replace cable
3. Change source
settings
4. Change TV input
5. Run auto Scan
Test
Finish
Step3：
1. Check System board (5Vs)
CN4-pin1 to ground = 5V,
2. Check System Board
CN4-pin3 to ground = 5V
CN5-pin2 to ground = 12V
Step2：
Check for a loose or broken
connection between Con.J28
from system board to Panel
LVDS connection.
Secure connection
or replace the
LVDS wire
Step1:
Check damage to
panel Replace Panel
Fail
Fail
OK
OK
Fail
Fail
Step2:
Check for a loose or
broken connection
between Con.J28 from
system board to Panel
LVDS connection.
FailReplace LVDS
connect wire
OK

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.)

Doc No.
Version 1.0
TITLE Service Manual
LCD TV For 232-S12 Page 8/44
4-3 LED is Malfunctioning、Keypad Problem
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.
CN904-pin7 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
Trouble Condition Check Item Replace Material Test
Step1：
Check connector CN 1 on
System board to CN1 located
on Keypad board for a loose
connection
Step2：
Check connector CN 1 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 1 on system
board to CN 1 on Keypad
board for a loose
connection or bad cable
Step3：
Check System board
CN1-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

Doc No.
Version 1.0
TITLE Service Manual
LCD TV For 232-S12 Page 9/44
4-4 Image Problems
No picture through
component
Replace System
board
OK
1. Reconnect cable
2. Replace cable
3. Change source
settings
Fail
Image Problems
Fail
No picture through
composite
No picture through
S-Video
No Picture through
Tuner
No picture through
HDMI
No picture through
VGA
Replace System
board
Fail 1. Secure connection
2. Change PC resolution to
fit the timing table
3. Replace VGA cable
OK
Test
Finish
Trouble Condition Check Item Replace Material Test
Step1：
1. Check if VGA cable
is loose.
2. Make sure the PC is
set to a resolution the
TV supports
3. Check both ends of
VGA cable for broken
or loose pins.
Step2：
Check component J21 on
system board for a short &
component E6 that stores
EDID information for a
short.
Step2：
1. Check System Board component
L29, L30,L31 for a short.
2. Check System Board component
FB10,L20 for a short
3. Check System Board component
FB11, FB12, L16, L17 for a short
4. Check System Board component
L23 ,FB53, FB54 for a short
5. Check J2 Con. broken? E5
EDID OK?
Step1：
1. Check video cable
connection
2. Check video cable
3. Check source settings
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.)
Note: Before proceeding make
sure the PC is not in standby or
hibernation mode. Make sure
the video card is secure and not
loose (AGP or PCI slot).

Doc No.
Version 1.0
TITLE Service Manual
LCD TV For 232-S12 Page 10/44
4-5 Audio Problems
Audio Problems Can’t adjustment
Volume Replace Keypad
board
Replace speaker
module
No audio on one
side of speaker
Fail
OK
Replace connect
wire
Fail
Replace Power
Module
Fail
No audio
Check switches on the
keypad board
OK
Set the speaker
setting to off
Fail
OK
1. Secure earphone
connection.
2. Replace Earphone
cable
Replace System
board
OK
Fail
Fail
No audio through
earphone
Test
Trouble Condition Check Item Replace Material Test
Step2：
Check OSD speaker
setting is off and not on
Step1：
1. Check earphone
connection
2. Check earphone
cable
Step3：
Check System board
component J30 & Q28
for a short
Step1：
Check for loose
connection between
CN2 and peaker and
CN3 and speaker
Step2：
Check if the Speaker
module is broken
Step3：
Check System board
CN5-pin1 to ground =
12V
Fail
Make sure external audio
connection is secure before
proceeding with
troubleshooting
Finish

Doc No.
Version 1.0
TITLE Service Manual
LCD TV For 232-S12 Page 11/44
4-6 Other Problems
Sometimes picture
flashes
Replace System
board
Fail
NO
Replace Keypad/IR
board
Firmware update
fails
Fail
OK
Replace connect wire
Fail
Replace Remote
control & Battery
Fail
Remote control fails
Replace LVDS
connect wire
Fail
Replace System
board
Fail
OK
1.Change USB Disk
format to FAT32
2.Copy FW file to
USB Disk
Fail
Other display problems
Test
Finish
Trouble Condition Check Item Replace Material Test
Step1：
1. Check USB Disk
is FAT32 format
2.
Check FW file
Check connecto
r
CN 1
on System board to CN1
located on Keypad board
for a loose connection
Step3：
Check for a broken
Keypad/IR board
Step2：
Check System board
component Q13, Q7
FB19(LPL),
FB20(CMO&AUO) for a
short
Step1：
Check Con. J11 to
panel LVDS onnection
Step1：
Check Remote control
& Battery
OK
OK
Ste
p
2：
Check System board,
J12 Connector and
FB69, E15 for a short

Doc No.
Version 1.0
TITLE Service Manual
LCD TV For 232-S12 Page 12/44
5. Disassembly
5-1 Stand
5-2 Back Cover
1. Loosen and remove 8 screws.
2. Safely remove the Stand.
1. Loosen and remove 10 screws.
2. Safely remove the Back Cover.
Screw M4 25mm
ScrewT4*10-PH-Cross-Black
ScrewT4*10-PH-Cross-Black

Doc No.
Version 1.0
TITLE Service Manual
LCD TV For 232-S12 Page 13/44
5-3 System Board
Figure 5
Figure 1
Figure 2
Figure 3
Figure 4
Screw MT4x8-PH-Cross-Black
Screw M4x8-PH-CETW-NI
Screw T3*8 Black
MT3*6-PH-CROSS-Black
1. Loosen and remove 17 screws
as indicated in Figure 1~4.
2. Take off the Support Metal.
3. Loosen and remove 5 screws and safely remove
connectors as indicated by red circles on Figure 5.
4. Take off the System Board.

Doc No.
Version 1.0
TITLE Service Manual
LCD TV For 232-S12 Page 14/44
5-4 Power Module
MT3*6-PH-CROSS-Black
ScrewT4*10-PH-Cross-Black
Screw MT4x8-PH-Cross-Black
2. Loosen and remove 18 screws and safely remove
connectors indicated by red circles.
3. Move the Wall mount and pull out connector as red
circles.
4. Safely remove the Power module and Wall mount.
1. Loosen and remove 6 screws
and safely remove connectors
indicated by red circles.

Doc No.
Version 1.0
TITLE Service Manual
LCD TV For 232-S12 Page 15/44
5-5 Panel Module
1. Safely remove the LVDS wire
indicated by red circles.
2. Remove the panel housing.

Doc No.
Version 1.0
TITLE Service Manual
LCD TV For 232-S12 Page 16/44
5-6 Speakers
5-7 Keypad Board
2. Safely remove speakers.
1. Gently remove the speaker connectors
that are indicated b
y
a
red circle.
Screw T3*8 Black
1. Loosen and remove 6 screws that
are indicated by blue circles.
2. Genntly remvoe connector
indicated by a red circle.
3. Safely remove the Keypad board.

Doc No.
Version 1.0
TITLE Service Manual
LCD TV For 232-S12 Page 17/44
6. Firmware upgrade
Olevia Firmware Updating Instructions
What does this do?
This process installs a new version of the firmware and fixes the past bugs.
What products does this instruction apply to?
Model: Olevia 227, 232, 427, 432, 527 and 532
What do you need before installing?
1. A compatible USB thumb drive
2. A Computer with Microsoft® Windows® 2000 or Microsoft® Windows® XP
operatingsystems.
Important Notes:
1. To make sure that no other files are in the thumb drive.
2. It is highly recommended to print the instructions as a reference before installing.
Loading Instructions:
1. Review the available downloads, the bugs fixed, and the new features added.
2. Follow the instructions on the firmware download section to successfully
download and load firmware into the TV.
Note: USB thumb drive must be formatted in FAT32 for detection.
Right click on removable
thumb drive.
Highlight Format.

Doc No.
Version 1.0
TITLE Service Manual
LCD TV For 232-S12 Page 18/44
Select FAT32
Select Start to Initiate
Format.
Make sure all data in thumb drive has
been backed up before you select OK.

Doc No.
Version 1.0
TITLE Service Manual
LCD TV For 232-S12 Page 19/44
3. After you have located the firmware, download it to a thumb drive. There are
fivedifferentfiles.
4. Turn TV off and insert the USB thumb drive into the TVs USB input.
5. Turn TV power on, OLEVIA screen will pop up and after a few seconds a blue
bar and will appear on the lower part of the screen covering the whole image
from left to right, then a red bar.
6. Once the firmware loading is complete the TV will turn on and initial
Home/Showroom option screen will appear.
7. Check under OSD menu Firmware Version and make sure that it matches with
that of thumb drive. (MenuÆSetupÆFirmware Version)
8. Take off the thumb drive.
9. For more help, please call our technical support at 1-866-9OLEVIA (965-3842)

Doc No.
Version 1.0
TITLE Service Manual
LCD TV For 232-S12 Page 20/44
7. EDID write in and ADC correction and Parameter Adjustment
7-1 EDID write in
7-1.1 EDID tools
7-1.2 EDID write in
1. Open Labview EDID Writ Eeprom20060816 file, and confirm software Keep Running.（Refer
Step 1）
2. choice RS-232 (PC System)Port No.(Refer Step 2)，choice burn in type (Refer Step 3)
3. press Set Model button（Refer Step 4）, and key in 232-S12. and confirm Scalar solution（Refer
Step 5）
4. confirm EDID Jig PCBA (printer port and USB A-B Line connect to PC, HDMI line to TV first ,
MinDim RS-232 to TV)
5. and then press Button（Refer Step 6）, then open a save file path in widow.
operate Barcode scanner scan S/N stick No.
6. First write HDMI EDID code , if finish OK you can find green light.（Refer Step 7）
7. And have a message that change EDID Jip PCBA VGA Cable to TV.(HDMI line must leave
PCBA Jig.) ,if write OK you can fine green light and show the
1. PC（Notebook）
2. Software（EDID Write EEprom20060816.exe）and confirm Personal computer hard disk
Have 2 files (1. C:\EDID Editor(including Hex files) 2.C:\LCD TV\DATA(product and
record had No.)
3. EDID PCBA tool、USB cable、RS232 mini din、Print cable、VGA cable
Step 1
Step 4
Step 5
Step 2
Step 3
Step 6
Step 7