4-12
Samsung Electronics
Alignment and Adjustments
3. IC (INTEGRATED CIRCUIT)
IC has built in DIODE against overvoltage in PIN. Generally, except for internal circuit defects, IC defects
can be found, by measuring the DIODE.
›
Defects have SHORT(0 ohm) for both forward and reverse direction.
Hundreds of ohms
Forward Direction
Reverse Direction
Varying depending on IC but generally normal
Infinity in DIODE TEST MODE
Summary of Contents for PPM42S2X/XAA
Page 2: ...ELECTRONICS Samsung Electronics Co Ltd APR 2002 Printed in Korea AA82 ...
Page 10: ...3 2 Samsung Electronics MENO ...
Page 25: ...Circuit Operation Description Samsung Electronics 5 3 5 1 2 D PDP PS 42 BLOCK DIAGRAM ...
Page 38: ...Circuit Operation Description 5 16 Samsung Electronics 5 2 3 D DRIVER CIRCUIT DIAGRAM ...
Page 39: ...Circuit Operation Description Samsung Electronics 5 17 5 2 3 E DRIVER BOARD CONNECTOR LAYOUT ...
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Page 93: ...Exploded View Parts List Samsung Electronics 7 1 7 Exploded View Parts List 7 1 PPM42S2X XAA ...
Page 106: ...Electrical Parts List 8 12 Samsung Electronics MEMO ...
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Page 133: ...Samsung Electronics Schematic Diagrams 12 3 TP01 12 3 SCALER3 3D COMB FILTER TP01 CVBS IN ...
Page 134: ...Schematic Diagrams 12 4 Samsung Electronics 12 4 SCALER4 VIDEO DECODER PIP FIRST IN OUTPUT ...
Page 135: ...Samsung Electronics Schematic Diagrams 12 5 12 5 SCALER5 VIDEO DA CON ...
Page 141: ...Samsung Electronics Schematic Diagrams 12 11 12 11 SOUND ...
Page 143: ...Samsung Electronics Schematic Diagrams 12 13 12 13 CONTROL REMOCON CONTROL REMOCON ...