Daewoo 529B, Service Manual

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6
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Power IC, Transistor or Devices Removal/Replacement
1. Heat and remove all solders from the device leads.
2. Remove the heatsink mounting screw (if applicable).
3. Carefully remove the device from the circuit board.
4. Insert new device in circuit board.
5. Solder each device lead and clip off excess lead.
6. Replace heatsink.
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Diode Removal/Replacement
1. Remove defective diode by clipping its leads as close as possible to the diode body.
2. Bend the two remaining leads perpendicularly to the circuit board.
3. Observing diode polarity, wrap each lead out of the new diode around the corresponding lead on the
circuit board.
4. Securely crimp each connection and solder it.
5. Inspect the solder joints of the two “original” leads on the circuit board copper side. If they are not
shiny, reheat them and apply additional solder if necessary.
TECHNICAL INFORMATION
Electrical
CRT dot pitch 0.28mm dot pitch
Horizontal frequency 30KHz to 70KHz(Automatically)
Vertical fequency 50Hz to 160Hz (Automatically)
Operating temperature 10 - 40°C / 50 - 104°F
Operating humidity 8 - 80%
Mechanical
Cabinet Molded Plastic Cabinet with detachable tilt & swivel base
Dimension (set with stand) 381(H) x 366(W) x 400(D) mm
Weight(net) 12.1 Kg
Controls Power Switch
OSD control
Pincushion, Trapezoid, Pin balance, Parallelogram,
Pin corner top, Pin corner bottom, Rotation, H. center &V. center,
Color Temp, R Gain, B Gain, H. size & V. size, Degauss, Status,
Language, Recall