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PDF GSD37SEN Fiche technique - Samsung

Numéro de référence GSD37SEN
Description TFT LCD TV Service Manual
Fabricant Samsung 
Logo Samsung Logo 

70 Pages
		

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GSD37SEN Datasheet, Description
TFT-LCD TV
Chassis
GSA32SEN
GSD37SEN
GSD40SEN
Model
LE32S67BDX
LE37S67BDX
LE40S67BDX
SERVICE Manual
TFT-LCD TV
Fashion Feature
- Luxurious Slim Design
- Supreme Picture Quality
- Supreme Sound Quality
- Supreme Convenience Quality
- Convenience for Users
- DVB-T, iDTV
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GSD37SEN Fiche technique
Contents
1. Precautions ………………………………………………………………………………………………………………………………………1-1
1-1 Safety Precautions ……………………………………………………………………………………………………………………… 1-1
1-2 Servicing Precautions …………………………………………………………………………………………………………………… 1-2
1-3 Static Electricity Precautions …………………………………………………………………………………………………………… 1-3
1-4 Installation Precautions…………………………………………………………………………………………………………………… 1-4
2. Product specifications …………………………………………………………………………………………………………………………2-1
2-1 Fashion Feature …………………………………………………………………………………………………………………………… 2-1
2-2 LE32S67BDX Specifications …………………………………………………………………………………………………………… 2-2
2-3 LE37S67BDX Specifications …………………………………………………………………………………………………………… 2-3
2-4 LE40S67BDX Specifications …………………………………………………………………………………………………………… 2-4
2-5 DTV Specification ………………………………………………………………………………………………………………………… 2-5
2-6 Spec Comparison ………………………………………………………………………………………………………………………… 2-6
2-7 Option Specification ……………………………………………………………………………………………………………………… 2-7
3. Alignments and Adjustments …………………………………………………………………………………………………………………3-1
3-1 Service Instruction ……………………………………………………………………………………………………………………… 3-1
3-2 How to Access Service Mode …………………………………………………………………………………………………………… 3-2
3-3 Factory Data ……………………………………………………………………………………………………………………………… 3-3
3-4 Service Adjustment ……………………………………………………………………………………………………………………… 3-12
3-5 Software Upgrade ……………………………………………………………………………………………………………………… 3-14
3-6 DTV Program Download & Generals ………………………………………………………………………………………………… 3-15
4. Troubleshooting ………………………………………………………………………………………………………………………………4-1
4-1 First Checklist for Troubleshooting ………………………………………………………………………………………………………4-1
4-2 Checkpoints by Error Mode ……………………………………………………………………………………………………………… 4-2
5. Exploded View and Parts List …………………………………………………………………………………………………………………5-1
5-1 LE32S67BDX Exploded View …………………………………………………………………………………………………………… 5-1
5-2 LE32S67BDX Parts list …………………………………………………………………………………………………………………… 5-2
5-3 LE37S67BDX Exploded View …………………………………………………………………………………………………………… 5-3
5-4 LE37S67BDX Parts list …………………………………………………………………………………………………………………… 5-4
5-5 LE40S67BDX Exploded View …………………………………………………………………………………………………………… 5-5
5-6 LE40S67BDX Parts list …………………………………………………………………………………………………………………… 5-6
6. Electrical Parts List ……………………………………………………………………………………………………………………………6-1
6-1 LE32S67BDX Parts List ………………………………………………………………………………………………………………… 6-1
6-2 LE372S67BDX Parts List ……………………………………………………………………………………………………………… 6-27
6-3 LE40S67BDX Parts List ………………………………………………………………………………………………………………… 6-52
7. Block Diagram …………………………………………………………………………………………………………………………………7-1
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3 Page

GSD37SEN pdf
14 Reference Infomation
14 Reference Infomation
14-1 Technical Terms
- TFT-LCD
(Thin film Transistor Liquid Crystal Display)
ADC(Analog to Digital Converter)
This is a circuit that converts from analog signal
to digital signals.
- PLL(Phase Locked Loop)
During progressing ADC, Device makes clock
synchronizing HSYNC with Video clock
- Inverter
Device that supply Power to LCD panel lamp.
this device gernerate about 1,500~2,000V.
- AC Adapter
Device that converts AC(90V~240V) to DC(+12V
or 14V)
- SMPS(Switching Mode Power Supply)
Switching Mode Power supply. This design tech-
nology is used to step up/down the input power
by switching on/off
- FRC(Frame Rate Controller)
Technology that change image frame quantity
displayed on screen for one second.
Actually TFT-LCD panel require 60 pcs of frame
for one second.
so,this technology is needed to convert input
image to 60 pcs regardless input frame quantity.
- Auto Configuration(Auto adjustment)
This is an algorithm to adjust monitor to optimum
condition by pushing one key.
- OSD(On Screen Display)
On screen display. customer can control the
screen easily with this.
- Image Lock
This means "Fineness adjustment" in LCD
Monitor, the features are "Fine" and "Coarse"
- FINE
"Fine" adjustment is used to adjust visibility by
control phase difference.
- COARSE
This is a adjustment by tuning with Video colck
and PLL clock.
- L.V.D.S.(Low Voltage Differential Signaling)
a kind of transmission method for Digital.It can
be used from Main PBA to Panel.
- DVI (Digital Visual Interface)
This provides a high speed digital connection for
visual data types that is display technology inde-
pendent. this interface is primarily forcused at
providing a connection between a computer and
its display device.
- Image Scaler
Technology that convert various input resolution
to other resolution.(ex. 640* 480 to 1024*768)
- T.M.D.S
(Transition minimized Differential Signaling)
a kind of transmission method for Digital.
It can be used from Video card to Main PBA.
14-1
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