3-32
6. FRONT PANEL Troubleshooting Flow
NO
NO
NO
NO
NO
YES
YES
1) If front panel board is not working
START
The IC 5V power is supplied normally?
The IC -28, -24, -21.5V powers are
supplied normally?
The clock #1 operates normally?
The signal #2 operates normally?
YES
YES
Check IC100(13), IC100(43),
IR100(2) voltage : 5V
Check Connector P101(3), P101(2),
P101(1) voltage : -28, -24, -21.5V
Check IC100(5) clock waveform
: See
FIG. 01
Check IC100(8) clock waveform
: See
FIG. 02
The signal #3 operates normally?
END
YES
Check IC100(42) clock waveform
: See
FIG. 03
Содержание LST-3100A
Страница 17: ...3 8 Fig 01 12 2880MHz clock Fig 02 48KHz clock Fig 04 Analog Audio Signal Fig 03 Data Signal ...
Страница 19: ...3 10 Fig 06 Analog Audio Signal ...
Страница 22: ...3 13 Fig 07 Digital Audio Signal Fig 08 Coaxial Digital Audio Signal ...
Страница 31: ...3 23 FIG 04 V sync signal FIG 03 H sync signal ...
Страница 33: ...3 25 FIG 05 Input Stream to IC203 FIG 06 Interrupt Signal ...
Страница 34: ...3 26 ...
Страница 35: ...3 27 ...
Страница 36: ...3 28 YES D Check analog buffers IC303 for 480i Jump to A flow ...
Страница 50: ...3 50 3 51 2 CPU AUDIO POWER CIRCUIT DIAGRAM ...
Страница 51: ...3 52 3 53 3 HD2 TUNER DVI CIRCUIT DIAGRAM ...
Страница 52: ...3 54 3 55 4 ATSCII STB CIRCUIT DIAGRAM ...
Страница 53: ...3 56 3 57 5 FRONT CIRCUIT DIAGRAM ...
Страница 54: ...3 58 3 59 PRINTED CIRCUIT DIAGRAMS 1 DIGITAL MAIN P C BOARD BOTTOM LOCATION GUIDE ...
Страница 55: ...3 60 3 61 2 DIGITAL MAIN P C BOARD TOP ...
Страница 56: ...3 62 3 63 3 FRONT P C BOARD 4 POWER P C BOARD LOCATION GUIDE ...
Страница 57: ......