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
Содержание PPM42S2X/XAA
Страница 2: ...ELECTRONICS Samsung Electronics Co Ltd APR 2002 Printed in Korea AA82 ...
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Страница 25: ...Circuit Operation Description Samsung Electronics 5 3 5 1 2 D PDP PS 42 BLOCK DIAGRAM ...
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Страница 53: ...Circuit Operation Description Samsung Electronics 5 31 5 3 Logic part 5 3 1 Logic Board Block diagram ...
Страница 76: ...Circuit Operation Description 5 54 Samsung Electronics 29 Jig board U1 LE01 pin35 30 Jig board U1 LE01 pin46 ...
Страница 77: ...Circuit Operation Description Samsung Electronics 5 55 31 Jig board U2 LE02 pin35 32 Jig board U2 LE02 pin46 ...
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Страница 93: ...Exploded View Parts List Samsung Electronics 7 1 7 Exploded View Parts List 7 1 PPM42S2X XAA ...
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Страница 133: ...Samsung Electronics Schematic Diagrams 12 3 TP01 12 3 SCALER3 3D COMB FILTER TP01 CVBS IN ...
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Страница 135: ...Samsung Electronics Schematic Diagrams 12 5 12 5 SCALER5 VIDEO DA CON ...
Страница 137: ...Samsung Electronics Schematic Diagrams 12 7 12 7 SCALER7 ADC VIDEO TP20 TP21 TP19 TP19 HS OUT TP20 VHS TP21 VCLK ...
Страница 138: ...Schematic Diagrams 12 8 Samsung Electronics 12 8 SCALER8 ADC PC TP23 TP24 TP22 TP22 MHSYNC TP23 MHS TP24 PCLK ...
Страница 140: ...Schematic Diagrams 12 10 Samsung Electronics 12 10 SCALER10 POWER DEGUGER MEMORY REMOCON RS232 RTC ...
Страница 141: ...Samsung Electronics Schematic Diagrams 12 11 12 11 SOUND ...
Страница 143: ...Samsung Electronics Schematic Diagrams 12 13 12 13 CONTROL REMOCON CONTROL REMOCON ...