3. CPU (System Control) Troubleshooting
NO
YES
YES
Start
Is Power supplied normally?
Is each clock OK?
YES
Is each reset OK at the time of
power- on reset?
YES
Is each chip selection OK?
YES
Is each I2C channel OK?
YES
Are messages output through
RS- 232C port on PC terminal?
YES
End
Check Power : Refer to (A)
NO
NO
NO
NO
NO
Check each clock : Refer to (B)
Check reset circuit : Refer to (C)
Check each chip selection : Refer to (D)
Check each I2C channel : Refer to (E)
Check RS- 232C circuit : Refer to (G)
3-14
Summary of Contents for LST-3100A
Page 17: ...3 8 Fig 01 12 2880MHz clock Fig 02 48KHz clock Fig 04 Analog Audio Signal Fig 03 Data Signal ...
Page 19: ...3 10 Fig 06 Analog Audio Signal ...
Page 22: ...3 13 Fig 07 Digital Audio Signal Fig 08 Coaxial Digital Audio Signal ...
Page 31: ...3 23 FIG 04 V sync signal FIG 03 H sync signal ...
Page 33: ...3 25 FIG 05 Input Stream to IC203 FIG 06 Interrupt Signal ...
Page 34: ...3 26 ...
Page 35: ...3 27 ...
Page 36: ...3 28 YES D Check analog buffers IC303 for 480i Jump to A flow ...
Page 50: ...3 50 3 51 2 CPU AUDIO POWER CIRCUIT DIAGRAM ...
Page 51: ...3 52 3 53 3 HD2 TUNER DVI CIRCUIT DIAGRAM ...
Page 52: ...3 54 3 55 4 ATSCII STB CIRCUIT DIAGRAM ...
Page 53: ...3 56 3 57 5 FRONT CIRCUIT DIAGRAM ...
Page 54: ...3 58 3 59 PRINTED CIRCUIT DIAGRAMS 1 DIGITAL MAIN P C BOARD BOTTOM LOCATION GUIDE ...
Page 55: ...3 60 3 61 2 DIGITAL MAIN P C BOARD TOP ...
Page 56: ...3 62 3 63 3 FRONT P C BOARD 4 POWER P C BOARD LOCATION GUIDE ...
Page 57: ......
