Hardware Trouble shooting
-17-
Y signal(RC238)
C. When “No signal” in Y/Pb/Pr signal (Component)
1) First check if other inputs are not working
=>If other inputs are not working, replace MAIN PCB
2) Checking waveforms with Color Bar Pattern(Using the oscilloscope)
-Main TP(COMP_Y) : RC238 near IC401(TOP)
-Main TP(COMP_Pb) : RC237 near IC401(TOP)
-Main TP(COMP_Pr) : RC239 near IC401(TOP)
=> If all signal does not appear, replace MAIN PCB.
Pb signal(RC237)
Summary of Contents for LA32L1B1LM
Page 11: ...5 Block Diagram 11 1 Block Diagram of Digital Board...
Page 12: ...12 Block Diagram 2 Power Tree...
Page 18: ...Hardware Trouble shooting 18 Pr signal RC239...
Page 22: ...Hardware Trouble shooting 22 B signal RC237 H Sync RC207...
Page 24: ...Hardware Trouble shooting 24 5 No Sound...
Page 26: ...7 Schematic 26...
Page 27: ...Schematic 27...
Page 28: ...Schematic 28...
Page 29: ...Schematic 29...
Page 30: ...Schematic 30...
Page 31: ...Schematic 31...
Page 32: ...Schematic 32...
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Page 38: ...Schematic 38...
Page 39: ...Schematic 39...
Page 40: ...Schematic 40...
Page 41: ...Schematic 41...
Page 52: ...10 Mechanical Exploded View 52 1 LA32L1B1LM...
Page 53: ...Mechanical Exploded View 53 2 LA37L1B1LM...
Page 54: ...Mechanical Exploded View 54 3 LA42L1B1LM LA42L1B1LF...
