Daewoo DLP-26H1 User manual

Liquid Crystal Display Television
Service Manual
Chassis：： MST9E88
Product Type：：DLP-26H1
DLP-32H1
Ver 1.0
Otc. 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
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
1

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 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

Give Name
6m
30
8m
6m
6m
6m
15
15
30
8m
Note: The above figures are for reference only, please refer to the actual units to determine the
appearances.
IR angle for the remote control
screen
1
1
1
Source
TV
Picture Sound Zoom
1
4
7
2
5
8
0
3
6
9
Recall
Mute Still
I/ii
Display
CH
Menu
CH
VOL VOL
Hold
Pip Move Sleep
Reveal Mix CancelSubcode
Index Hold
Text
Source Swap
YPBPR
SCART1 SCART2
11
10 1 2
AC input socket
HDMI VGA
COMPONENT IN
VIDEO AUDIO/L AUDIO/R
VIDEO IN
ANT 75
S-VIDEO
YPB/CBPR/CR
AUDIO/L AUDIO/R
HDMI
1 2
2. Product Function and Specifications
2-1 Product Function
3

820(L)X240(D)X628(H )
22.5kg
Refer to rating label.
Refer to rating label.
6W+6W
2-2 Specifications
4

3. LCD Panel Spec
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
5

4. Block Diagram
4-1 Chassis Block Diagram
POWER BOARDMAIN BOARD
6

MAIN BOARD
POWER BOARD
7

TUNER
TDQ-6FT
SAW FILTER
Hs9453
Hs6257
IF
TDA9886
HDMI INPUT
VGA INPUT
VGA/COMPONENT
AUDIO INPUT
VIDEO INPUT
S-VIDEO
INPUT
COMPONENT
INPUT
SCART1
SCART2
KEY/CONTROL
SIF
DDR
128M
FLASH
PSL25V040
LCD PANEL
AV/S-VIDEO
AUDIO INPUT
TPA
3101D2
CVBS/RGB
CVBS
MST9E88L
SPEAKER
EARPHONE
4-2 Signal Processing Part
8