Daewoo MST-9E88 Service Manual
Service Manual
LCD TV
CHASSIS : MST9E88
Model : DLP-26H1
DLP-32H1
S/M NO. : DLP26H1001
OCT. 2007
Contents
1. Product Safety Servicing Guidelines........................................ 1
2. Product Function Specifications ............................................ 3
2-1 Product Function ..................................................... 3
2-2 Specifications ....................................................... 4
3. Lcd Panel Spec ............................................................. 5
3-1 General Description .................................................. 5
3-2 General Features ..................................................... 5
4. Block Diagram .............................................................. 6
4-1 Chassis Block Diagram ................................................. 6
4-2 Signal Processing Part ................................................ 8
4-3 Power Part ............................................................ 9
5. Service Mode And Adjustment ............................................... 10
5-1 Service Mode ........................................................ 10
6. Software Updating ......................................................... 13
6-1、Updating Tool ....................................................... 13
6-2、Software Updating Operation................................................................................................ 14
7. Bill Of Materials ......................................................... 24
8. Troubleshooting ........................................................... 34
9. Ciruit Diagram ............................................................ 35
1. Product Safety Servicing Guidelines
1
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.
5. Connection wires must be kept away from components with high voltage
or high temperature.
6. 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
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
2
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 inspection. 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 and 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. P ro d uc t Fu n ct io n a nd S pe c if ic a ti on s
3
2- 1 Pr o du ct F u nc ti o n
Give N am e
1 2
HDMI
HDMI
10
1
2
11
IR angle for the remote control
6m
15
8m
15
6m
screen
30
30
6m
Y
PB
PR
SCART1 SCART2
AUDIO/R
VGA
Y
AUDIO/L
PB/CB
COMPONENT IN
VIDEO
PR/CR
AUDIO/L
VIDEO IN
AUDIO/R
S-VIDEO
ANT 75
8m
1
1
1
6m
Source
TV
Zoom
Picture
Sound
2
3
1
5
6
4
7
8
9
Display
Recall
0
CH
VOL
VOL
CH
I/ii
Menu
Mute
Still
Hold
Index Hold
Sleep
Pip
Move
Text
Reveal
CancelSubcode
Mix
Source Swap
AC i nput so cket
No t e : The above figures are for referenc e only, please refer to the actual units to determine t h e
appearances.
2- 2 Sp e ci fi c at io n s
4
6W+6W
Refer to rating label.
Refer to rating label.
820(L )X 240(D )X 628(H )
22.5kg
3. LCD Panel Spec
5
3-1 General Description
LCD3206NEU’S LCD Panel is a 32” TFT Liquid Crystal Display module
with 18-EEFL 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.
3-2 General Features
4. Block Diagram
6
4-1 Chassis Block Diagram
POWER BOARDMAIN BOARD
MAIN BOARD
7
POWER BOARD
4- 2 S i g n a l P r o c e s s i n g P a rt
8
TUNER
TDQ-6FT
SAW FILTER
Hs9453
Hs6257
HDMI INPUT
VGA INPUT
COMPONENT
INPUT
VGA/COMPONENT
AUDIO INPUT
IF
TDA9886
SIF
LCD PANEL
SPEAKER
VIDEO INPUT
S-VIDEO
INPUT
AV/S-VIDEO
AUDIO INPUT
KEY/CONTROL
SCART1
SCART2
TPA
3101D2
CVBS/RGB
CVBS
FLASH
PSL25V040
MST9E88L
DDR
128M
EARPHONE
9
DDR2 .5
MST2.5
MST3.3
+2.5VM
+3.3AVDD
1117-2 .5
+3.3V
1117-3 .3
MST2.5 (A )
1084 -3 .3
MST1.8 (D )
+1.8V
DC-D C
74HC 405 2
1117-5
TUNER
+33V
+8V
L780 8
PANEL POW ER
+5V
+12V
PANEL POW ER
Inve rte r POW ER
+24V
DC/DC
AMP
+28V
DC/DC
DC/DC
DC/DC
PFC
50/60 HZ
AC INPU T
4- 3 P o w e r P a r t
5. Service Mode And Adjustment
10
5-1 Service Mode
Use the remote control, first open MAIN MENU with MENU button, and
choose SOUND with the CHANNEL UP/DOWN button, then choose the BALANCE
with VOLUME UP, while Balance value is 0, press 0、5、3、2,you can enter
factory menu.
5-1-1、Fac. Menu
Factory Menu
White Balance
Auto Test
Auto Calibration
LOGO
OSD Language
Country
Option
Factory Init
Test Pattern
Version:
Auto Calibration
Auto Color
Color Temp. Standard
RED COLOR 130
GREEN COLOR 138
BLUE COLOR 140
White Balance
R DRV 10
G DRV 10
B DRV 10
R CUT 130
G CUT 138
B CUT 140
BRIGHT_H 80
CONTRAST _H 80
BRIGHT_L 40
CONTRAST_L 40
LOGO
NULL
HISENSE
WELCOME
11
Option
SOURCE TV
BRIGHT 0 10
BRIGHT 50 100
BRIGHT 100 135
CONTRAST 0 60
CONTRAST 50 125
CONTRAST 100 155
TOFAC M
HDMI Cable Standard
Factory Init
QingDao
HuangDao
Guiyang
Hungary
France
Austria
CLEAR PROTECTLY
CLEAR UNPROTECTLY
Test Pattern
BLUE
Version
Version:
LCD3206NEU(1)_VER1.10.200708
31
Panel Type:
LG 32 (1366*768)
FLASH :
PS25LV040
Design Menu
12
Picture Mode
Sound Mode
Sound Settings
Power Save
PIP Option
EMI
MOVESHARPNESS
LipSync
Picture Mode
Standard Brightness 50
Contrast 50
Colour 50
Bright Brightness 60
Contrast 60
Colour 55
Soft Brightness 45
Contrast 45
Colour 45
Sound Settings
VOLUME 0 128
VOLUME 1 79
VOLUME 20 27
VOLUME 40 23
VOLUME 100 18
TVPRE SCALER 6
VOLUME SCALER 0
Sound Mode
Standard 120Hz 12
500Hz 10
1.5KHz 11
5KHz 8
10KHz 15
Music 120Hz 19
500Hz 11
1.5KHz 12
5KHz 14
10KHz 20
Speech 120Hz 4
500Hz 10
1.5KHz 12
5KHz 7
10KHz 5
6. Software Updating
13
6-1、Updating Tool
- You can update the software through a special tool (show as below)
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