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PDF LS17DOA Fiche technique - Samsung

Numéro de référence LS17DOA
Description (LS17DOA / LS19DOA) LCD Monitor Manual
Fabricant Samsung 
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70 Pages
		

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LS17DOA Datasheet, Description
LCD-Monitor
Chassis
LS17DOA
LS19DOA
Model
741MP
941MP
SERVICE Manual
LCD Monitor
Fashion Feature
- All - in - One Chip
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LS17DOA Fiche technique
Contents
1. Precautions ………………………………………………………………………………………………………………………………………1-1
1-1. Safety Precautions ………………………………………………………………………………………………………………………1-1
1-2. Servicing Precautions ……………………………………………………………………………………………………………………1-2
1-3. Static Electricity Precautions ……………………………………………………………………………………………………………1-2
1-4. Install Precautions …………………………………………………………………………………………………………………………1-2
2. Product specifications …………………………………………………………………………………………………………………………2-1
2-1. Fashion Feature ………………………………………………………………………………………………………………………… 2-1
2-2. Specifications Comparison to the Old Model …………………………………………………………………………………………2-1
2-3. LS17DOA Specifications …………………………………………………………………………………………………………………2-2
2-3. LS19DOA Specifications …………………………………………………………………………………………………………………2-3
2-4. Option Specification ………………………………………………………………………………………………………………………2-4
3. Alignments and Adjustments …………………………………………………………………………………………………………………3-1
3-1. EDID input method ………………………………………………………………………………………………………………………3-1
3-2. DDC JIG Installation ……………………………………………………………………………………………………………………3-2
3-3. EDID Installation with Windows Program ………………………………………………………………………………………………3-3
3-4. Factory Mode Adjustments ………………………………………………………………………………………………………………3-4
4. Troubleshooting ………………………………………………………………………………………………………………………………4-1
4-1. No Power ………………………………………………………………………………………………………………………………… 4-1
4-2. No Picture (PC Signal) ………………………………………………………………………………………………………………… 4-2
4-3. No Picture (TV) …………………………………………………………………………………………………………………………… 4-4
4-4. No Picture (Video/S-Video/Scart) ……………………………………………………………………………………………………… 4-6
4-5. No Picture (Component) ………………………………………………………………………………………………………………… 4-8
4-6. No Sound (TV) ………………………………………………………………………………………………………………………… 4-10
4-7. No Sound (Component) ……………………………………………………………………………………………………………… 4-12
5. Exploded View and Parts List …………………………………………………………………………………………………………………5-1
5-1. Exploded View …………………………………………………………………………………………………………………………… 5-1
5-2. Parts List ………………………………………………………………………………………………………………………………… 5-2
6. Electrical Parts List ……………………………………………………………………………………………………………………………6-1
6-1 LS19DOW Parts List ………………………………………………………………………………………………………………………6-1
7. Block Diagram …………………………………………………………………………………………………………………………………7-1
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3 Page

LS17DOA pdf
1 Precautions
1 Precautions
Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as electrical shock.
1-1 Safety Precautions
1-1-1 Warnings
1. For continued safety, do not attempt to modify the circuit
board.
2. Disconnect the AC power and DC power jack before
servicing.
1-1-2 Servicing the LCD Monitor
1. When servicing the LCD Monitor, Disconnect the AC
line cord from the AC outlet.
2. It is essential that service technicians have an accurate
voltage meter available at all times. Check the
calibration of this meter periodically.
1-1-3 Fire and Shock Hazard
Before returning the monitor to the user, perform the
following safety checks:
1. Inspect each lead dress to make certain that the leads are
not pinched or that hardware is not lodged between the
chassis and other metal parts in the monitor.
2. Inspect all protective devices such as nonmetallic control
knobs, insulating materials, cabinet backs, adjustment
and compartment covers or shields, isolation resistor-
capacitor networks, mechanical insulators, etc.
3. Leakage Current Hot Check (Figure 1-1):
WARNING : Do not use an isolation
transformer during this test.
Use a leakage current tester or a metering system that
complies with American National Standards Institute
(ANSI C101.1, Leakage Current for Appliances), and
Underwriters Laboratories (UL Publication UL1410,
59.7).
Figure 1-1. Leakage Current Test Circuit
4. With the unit completely reassembled, plug the AC line
cord directly into a 120V AC outlet. With the unit’s AC
switch first in the ON position and then OFF, measure
the current between a known earth ground (metal water
pipe, conduit, etc.) and all exposed metal parts,
including: metal cabinets, screwheads and control shafts.
The current measured should not exceed 0.5 milliamp.
Reverse the power-plug prongs in the AC outlet and
repeat the test.
1-1-4 Product Safety Notices
Some electrical and mechanical parts have special safety-
related characteristics which are often not evident from visual
inspection. The protection they give may not be obtained by
replacing them with components rated for higher voltage,
wattage, etc. Parts that have special safety characteristics are
identified by on schematics and parts lists. A substitute
replacement that does not have the same safety characteristics
as the recommended replacement part might create shock, fire
and/or other hazards. Product safety is under review
continuously and new instructions are issued whenever
appropriate.
1-1
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