Contents of adjustment mode ................................................................................ 56
Internal Pattern Generator ..................................................................................... 57
Cable Diagnostic Screen ............................................................................................ 57
Adjustments ................................................................................................................ 58
Driver Set-up .......................................................................................................... 58
Initialization Pulse Adjustment ............................................................................... 59
Drive Waveform ....................................................................................................... 59
P.C.B. (Printed Circuit Board) exchange procedure ................................................ 60
Adjustment Volume Locations................................................................................... 61
Test Point Locations ................................................................................................... 62
Troubleshooting .......................................................................................................... 63
No Picture or Partial Picture ................................................................................... 63
Scan and Sustain Drive Waveform ........................................................................ 66
Scan and Sustain Drive Check points .................................................................... 66
Vertical line problems............................................................................................. 71
Picture ok, Sound NG ............................................................................................ 72
No picture, no sound .............................................................................................. 73
No picture, sound ok .............................................................................................. 74
How to determine whether the D board or SC board is defective?......................... 75
Additional Troubleshooting Hints............................................................................ 76
SC20 or D20 Connector........................................................................................... 77
How to determine whether the D board or SS board is defective?......................... 78
Defective Board ....................................................................................................... 79
Glossary and Acronyms ............................................................................................. 80
Summary of Contents for TH-42PX50U
Page 40: ...SC board Waveform Figure 30 SU And SD Board Shift Registers Figure 31 35 ...
Page 43: ...SS Board Schematic Figure 33 SS Board Waveform Figure 34 38 ...
Page 66: ...Adjustment Volume Locations Figure 53 61 ...
Page 67: ...Test Point Locations Figure 54 62 ...
Page 71: ...Scan and Sustain Drive Waveform Figure 55 Scan and Sustain Drive Check points Figure 56 66 ...
