Hisense LCD3233EU User manual

Liquid Crystal Display Television
Service Manual
Chassis：M-STAR
Product Type：LCD3233EU/LCD2633EU
Ver 1.0
LCD Institute R&D Center
Hisense Electric Co.，Ltd.
Jun. 2006
Note: This Specification is subject to change without notice.

- 2 -
LCD TV Service Manual
Hisense Confidential
Contents
Contents .................................................................. - 2 -
Service Manual ............................................................ - 3 -
1. Product Safety Servicing Guidelines.................................... - 3 -
2. Product Function Specifications ........................................ - 4 -
2-1 LCD3233EU/LCD2633EU Product Function ............................. - 4 -
2-2 LCD3233EU/LCD2633EU Specifications ............................... - 7 -
3. Lcd Panel Spec ......................................................... - 9 -
3-1 General Description .............................................. - 9 -
3-2 General Features ................................................ - 11 -
4. Block Diagram ......................................................... - 12 -
4-1 Chassis Block Diagram ............................................ - 12 -
4-2 Video Processing Part ............................................ - 15 -
4-3 Audio Processing Part ............................................ - 16 -
4-4 I2C Controlling Part ............................................. - 16 -
4-5 Power Part ....................................................... - 17 -
5. Service Mode And Adjustment ........................................... - 17 -
5-1 Service Mode .................................................... - 17 -
6. Software Updating ..................................................... - 21 -
6-1、Updating Cable .................................................. - 21 -
6-2、LCD3233EU/LCD2633EU Software Updating Operation ................. - 21 -
7. LCD3233EU/LCD2633EU Explode View And Bom.............................. - 29 -
8. Spare Parts List ...................................................... - 32 -
9. Troubleshooting ....................................................... - 32 -
10. Ciruit Diagram ....................................................... - 32 -
○
CCopyright LCD Institute R&D Center Hisense Electric Co.，Ltd.,
Jun, 2006 All Rights Reserved.
No Reproduction and Redistribution Allowed！

- 3 -
LCD TV Service Manual
Hisense Confidential
Service Manual
1. Product Safety Servicing Guidelines
WARNING:
Service should not be attempted by anyone unfamiliar with the
necessary precaution on this receiver.The following are the necessary
precaution to be observed before serving this chassis.
1.Since the power supply circuit of this receiver is directly connected
to the AC power line ,an Isolation transformer should be used during any
dynamic service to avoid possible shock hazard.
2.When replacing a chassis in the cabinet, always be certain that all
the protective devices are put back in place, such as : non-metallic
control knobs, insulating cover,shields,isolation resistor-
capacitor network etc.
3.When replacing parts or circuit boards, disconnect the power cord.
4.When replacing a high wattage resistor (oxide metal film resistor )
on the circuit board, keep the resistor(1/2in) away from circuit
board.
6.Connection wires must be kept away from components with high voltage
or high temperature.
7.If any fuse in this LCD TV receiver is blown , replace it with the FUSE
specified in the chassis part list.
The lightning flash with arrowhead symbol, within an
equilateral triangle is intended to alert the user to the

- 4 -
LCD TV Service Manual
Hisense Confidential
presence of uninsulated dangerous voltage within the products
enclosure that may be of sufficient magnitude to constitute a risk of
electric shock.
The exclamation point within an equilateral triangle is
intended to alert the user to the presence of important
operating and maintenance( servicing ) instructions in the literature
accompanying the set.
Many electrical and mechanical parts in the chassis have special
safety-related characteristics.These characteristics are often passed
unnoticed by a visual inspe-ction.When replacement parts are required ,
be sure the service technician uses replacement parts specified by us
that have the same characteristics as the original part. Unauthorized
substitutions may result in fire , electric shock , injury to persons
or other hazards.This LCD TV product should be situated away from heat
source such as radiation,stoves,or other product that produce heat.
2. Product Function Specifications
2-1 LCD3233EU/LCD2633EU Product Function

- 5 -
LCD TV Service Manual
Hisense Confidential

- 6 -
LCD TV Service Manual
Hisense Confidential
zMultimedia - TV receiver, Video monitor and PC display, all in one.
zWider viewing angle, 16:9 display – 176°viewing angle.
zDigital display device - truthfully reproducing the images, without

- 7 -
LCD TV Service Manual
Hisense Confidential
distortion or blurring, irrespective of magnetic or geomagnetic
effect.
z200 channels memory
zSleep timer
zTeletext with 252 pages memory
zStereo
zDual SCART interface
zMulti-language OSD
2-2 LCD3233EU/LCD2633EU Specifications

- 8 -
LCD TV Service Manual
Hisense Confidential

- 9 -
LCD TV Service Manual
Hisense Confidential
3. Lcd Panel Spec
3-1 General Description
LCD3233EU’S Lcd Panel is a 32” TFT Liquid Crystal Display module
with 16-CCFL Backlight unit and 1ch-LVDS interface. This module supports
1366 x 768 WXGA format and can display true 16.7M colors ( 8-bit colors).
The inverter module for backlight is built-in.
AC 100
to 240V

- 10 -
LCD TV Service Manual
Hisense Confidential
FEATURES
- High brightness (400 nits)
- Ultra-high contrast ratio (1200:1)
- Faster response time (gray to gray average 6.5ms)
- High color saturation NTSC 75%
- Ultra wide viewing angle : 176(H)/176(V) (CR>20) with Super MVA
technology
- DE (Data Enable) only mode
- LVDS (Low Voltage Differential Signaling) interface
- 180 degree rotation display (option)
- Color reproduction (nature color)

- 11 -
LCD TV Service Manual
Hisense Confidential
LCD2633EU’S Lcd Panel is a 26.0 inch Color TFT-LCD Module T260XW02.
This LCD module has a TFT active matrix type liquid crystal panel 1366x768
pixels, and diagonal size of 26.0 inch. This module supports 1366x768
XGA-WIDE mode (Non-interlace).
Each pixel is divided into Red, Green and Blue sub-pixels or dots which
are arranged in vertical stripes. Gray scale or the brightness of the
sub-pixel color is determined with a 8-bit gray scale signal for each
dot.
The T260XW02 has been designed to apply the 8-bit 1 channel LVDS
interface method. It is intended to support displays where high
brightness, wide viewing angle, high color saturation, and high color
depth are very important.
3-2 General Features

- 12 -
LCD TV Service Manual
Hisense Confidential
4. Block Diagram
4-1 Chassis Block Diagram
POWER BOARDMAIN BOARD

- 13 -
LCD TV Service Manual
Hisense Confidential
MAIN BOARD

- 14 -
LCD TV Service Manual
Hisense Confidential
POWER BOARD

- 15 -
LCD TV Service Manual
Hisense Confidential
4-2 Video Processing Part
LCD PANEL
U200
MST5151
I2C
H/V
R/G/B
VGA
Y
Pb/Cb
Pr/Cr
SAW
U601
ANT.IN
R/G/B/FB
Y/C
S-VHS
SCART2
SCART1 CANNAL+ 62WV5128BLL
RAM
U500
HDMI
SST39VF088
FLASH
U606
HY5DU281622ET
DDRAM
U213
HY5DU281622ET
DDRAM
U214
Video_OUT
656 8
VCT49XX
U603

- 16 -
LCD TV Service Manual
Hisense Confidential
4-3 Audio Processing Part
4-4 I2C Controlling Part
VCT49X
X
U603
SCART1 AUDIO
L/R AUDIO
TV AUDIO
TPA3008D
AMPLIFIER
U800
TDA2822M
EAR AMP.
U801
L
R
L
R
OUTPUT 6W+6W
P14V
+12V
SCART2 AUDIO
L/R AUDIO
HDMI AUDIO
AV/S-Video/Compent AUDIO
PC AUDIO
HDMI INPUT
74HC4052
U501
MST5151
U200
74HC40
52
U501
Audio Output
Subwoofer Output
AVSW1 AVSW2
MST5151
U200
VCT49XX
U603
XP208
HDMI
24LC04
U206
24LC04
U605
24LC64
U604
Tuner
U600
I2C
DDROM
U213
DDROM
U214
PCF9555
U602
PU_DVI
P_EN
BKLON
AMUTE
AVSW1
AVSW2
STANDBY
LED
OPTION2
OPTION3
RST_MST

- 17 -
LCD TV Service Manual
Hisense Confidential
4-5 Power Part
5. Service Mode And Adjustment
5-1 Service Mode
Use the remote control, first open MAIN MENU with MENU button,and
choose AUDIO SETTING with the CHANNEL UP/DOWN button,then choose the
BALANCE with VOLUME UP/DOWN,In this condition,press 0、5、3、2,you can
enter factory menu.
5-1-1、Fac. Menu
AMS1117-2.5
U202
LD1085
U203
AMS1117-3.3
U604
U106
L7808
PFC
AC INPUT
50/60HZ
DC/DC
DC/DC
+5V
+12V
PANEL POWER
+8V U108
AMS1117-5.0
+24V Inverter POWER
MST5151
AMS1117-3.3
U103 VCT49XX
M4334(U207)
DC/DC
TDA2822M(U801)
VCT49XX
74HC4052(U501)
VCT49XX
PANEL POWER
MST5151
AC INPUT
50/60HZ DC/DC +5V (Standby ) AMS1117-1.8
U105
AMS1117-3.3
U109
+1.8
V
+3.3V
VCT49XX
VCT49XX
PCF9555(U602)
+3.3V
62WV5128BLL(U500)
+3.3V
+3.3V
FLASH(U606)
24LC64(U604)
24LC04(U605)
U213/U214

- 18 -
LCD TV Service Manual
Hisense Confidential
Options 1 (TV)
FrontAV(Ext3) <Yes>
FrontAVY/C(Ext4) <No>
FrontAV(Ext5) <No>
DVBModule <No>
Picture Tube16:9 <Yes>
BlueScreen <No>
PictureMute <No>
UHFOnly <No>
SearchForBG,DK,I <Yes>
Search For L/L’ <No>
Search For M <Yes>
Pref.Search Standrd <BG,DK,I>
Station Ident <Yes>
ATSDelayTime(ms) <50>
Back:i Exit:ok
Additional settings (TV)
DYNFOC-Vertical(PWMV) <+1>
DYNFOC-Norstart(DFHB) <+1>
DYNFOC-Horstop(DFHE) <+1>
OSDH-shift <+205>
OSD H-shift split screen <+220>
OSDV-shift <+33>
OSDpixelclock <+72>
Caption status Display <NO>
XDSDataDisplay <NO>
Back:i Exit:ok
White Balance (TV)
Rgain +126
Ggain +121
Bgain +115
Roffset +119
Goffset +122
Boffset <+121>
WBH-Bright <+100>
WBH-Contrast <+100>
WBH-Satiation <+100>
WBL-Bright <+80>
WBL-Contrast <+80>
WBL-Satiation <+80>
Back:i Exit:ok
Service Mode (TV)
White Balance
Additional Settings
Options 1
Options 2
Audio Options
Deviation settings
DRX
NVM Edit
NVM Initialize
MinMidMax Init
Scaler
Set channel
ToFAC <0>
LCD26/3233EU
20060719

- 19 -
LCD TV Service Manual
Hisense Confidential
DRX (TV)
StandardSelect <BG,DK>
Topsetting <+7>
VideoPeaking <0>
SIP Reference <+2>
Back:i Exit:ok
Deviaton Settings (TV)
MJapa <+24>
BTSC <+24>
DKDual <+24>
BG <+24>
NICAML <+24>
NICAMI <+24>
DKNICAM <+24>
FMRadio <+24>
Back:i Exit:ok
Audio Options (TV)
Equslizer <Yes>
ShowVolumebar <Yes>
AutoStoreVolume <No>
BBE <No>
Voice <No>
SRSWOW <No>
ACF <No>
VolumeLim <+100>
Volume0 <-115>
Volume1 <-60>
Volume20 <-30>
Volume50 <-15>
Volume100 <-2>
Back:i Exit:ok
Options 2 (TV)
JPEGViewer <NO>
Show Versions of Ics
GTIEnable <Yes>
LTIEnable <No>
ScalerChipSelect <6151>
Logo <hisense>
Back:i Exit:ok

- 20 -
LCD TV Service Manual
Hisense Confidential
Scaler (TV)
ADC Rgain <+128>
ADC Ggain <+128>
ADC Bgain <+128>
ADC Roffset <+128>
ADC Goffset <+128>
ADC Boffset <+128>
Back:i Exit:ok
MinMidmax Init (TV)
Brightness0 <-252>
Brightness1 <-100>
Brightness50 <+100>
Brightness100 <+252>
Contrast0 <0>
Contrast50 <+30>
Contrast100 <+63>
Picture Mode_Bright_Bri <+125>
Picture Mode_Bright_Con <+153>
Picture Mode_Standard_Bri<+125>
PictureMode_Standard_Con<+145>
Picture Mode_Soft_Bri <+125>
Picture Mode_Soft_Con <+125>
Other More
Back:i Exit:ok
NVM Initialize (TV)
Initialize NVM from Rom
Continue:LEFTkey Exit: Mkey
Back:i Exit:ok
NVM EDit (TV)
NVM_edit addr.(hex) _ _ _
NVM_edit data.(hex) _ _
WARNing: Editing may cause
defects!
NVM_data dev:000 bin:00000000
A: B: C; D: E; F; G:
Back:i Exit:ok