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PDF HTX20S32 Data sheet ( Hoja de datos )
| Número de pieza | HTX20S32 | |
| Descripción | COLOR TELEVISION Service Manual | |
| Fabricantes | Haier | |
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Hay una vista previa y un enlace de descarga de HTX20S32 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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HTX20S32
COLOR TELEVISION
Service Manual
MODEL: HTX20S32
Features
MTS Stereo
Front Audio/Video input
V-CHIP, CCD
NO:M-AM-US-20R21-76814
Edition: 2002.12.30
Free Datasheet http://www.datasheet4u.com/
1 page  
Safety Precautions
4. Safety Precautions
SAFETY PRECAUTIONS
IMPORTANT SAFETY NOTICE
Many electrical identify these parts and mechanical parts in this chassis have special safety-related
characteristics! In the Schematic Diagram and Replacement Parts List.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of the manufacturer.
General Guidance
An Isolation Transformer should always be used during the servicing of a receiver whose chassis is
not isolated from the AC power line. Use a transformer of adequate power rating as this protects the
technician from accidents that might result in personal injury caused by electrical shocks.
It will also protect the receiver and it’s components from being damaged by accidental shorts of the
circuitry that might be inadvertently introduced during the service operation.
If any fuse (or Fusible Resistor) in this TV receiver is blown, replace it with a specified one.
When replacing a high wattage resistor (Oxide Metal Film Resistor, over 1W), keep the resistor
10mm away from PCB.
Keep wires away from high voltage or high temperature parts.
Due to the high vacuum and large surface area of the picture tube, extreme care should be taken in
handling the Picture Tube. Do not lift the Picture Tube by its Neck.
X-RAY Radiation
Warning:
The source of X-RAY RADIATION in this TV receiver is the High Voltage Section and the Picture
Tube.
For continued X-RAY RADIATION protection, the replacement tube must be of the same type as
specified in the Replacement Parts List.
Before returning the receiver to the customer,
Always perform an AC leakage current check on the exposed metallic parts of the cabinet, such as
antennas, terminals, etc., to make sure that the set is safe to operate without any danger of electrical
shock.
4
Free Datasheet http://www.datasheet4u.com/
5 Page 
Warning and Cautions
At other connections
Use the following technique to repair the defective copper pattern at connections other than IC Pins.
This technique involves the installation of a jumper wire on the component side of the circuit board.
1) Remove the defective copper pattern with a sharp knife.
Remove at least 1/4 inch of copper, to insure that a hazardous condition will not exist if the jumper
wire opens.
2) Trace along the copper pattern from both sides of the pattern break and locate the nearest
component that is directly connected to the affected copper pattern.
3) Connect insulated 20-gauge jumper wire from the lead of the nearest component on one side of
the pattern break to the lead of the nearest component on the other side.
Carefully crimp and solder the connections.
CAUTION: Be sure the insulated jumper wire is dressed so that it does not touch components or
sharp edges.
10
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11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet HTX20S32.PDF ] | |
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