54
FIXING ERRORS
(1) Locking Error
Check the power status of
tuner(30V,
VCC_TUNER,3V3)
30V, 3V3 voltage OK?
Check Power
LNBP Input control?
LNBP output OK?
(IC101)
Eliminate problem causing factors.
Replace LNBP
Check the power of
LNB(13V/18V)
12C Line Check?
Reset Check?
Check Locking Voltage(1-16V)
Tuner PIN 13 near TP
Replace Tuner
B
Check IC related parts.
Check and eliminate
problem parts.
Check Reset
Circuit
Eliminate problems.
Replace Tuner
NO
YES
NO
YES
NO
NO
NO
NO
NO
YES
YES
NO
YES
YES
NO
YES
2. Poor quality screen
Содержание DSI-9100
Страница 5: ...4 SCHEMATIC DIAGRAM ...
Страница 6: ...5 SCHEMATIC DIAGRAM ...
Страница 7: ...6 SCHEMATIC DIAGRAM ...
Страница 8: ...7 SCHEMATIC DIAGRAM ...
Страница 9: ...8 SCHEMATIC DIAGRAM MPEG STI5518 ...
Страница 10: ...9 SCHEMATIC DIAGRAM MPEG CIMAX ...
Страница 11: ...10 SCHEMATIC DIAGRAM MPEG MEMORY 27M ...
Страница 12: ...11 SCHEMATIC DIAGRAM MPEG VIDEO ...
Страница 13: ...12 SCHEMATIC DIAGRAM MPEG AUDIO ...
Страница 14: ...13 SCHEMATIC DIAGRAM MPEG POWER RS 232 VCR CON ...
Страница 15: ...1 Block Diagram 14 CIRCUIT INFORMATION MPEG ...
Страница 24: ...23 CIRCUIT INFORMATION MPEG EMI Interface Timing ...
Страница 59: ...58 PCB CIRCUIT BOARD 1 MAIN PCB Circuit Board ...
Страница 60: ...59 PCB CIRCUIT BOARD 2 MPEG PCB Circuit Board ...
Страница 61: ...60 INSTRUMENT DISASSEMBLY 1 PACKING ASS Y ...
Страница 62: ...61 INSTRUMENT DISASSEMBLY 2 FRONT PANEL ASSEMBLY 1 7H32D ...
Страница 63: ...62 INSTRUMENT DISASSEMBLY 2 4J32D ...
Страница 64: ...63 INSTRUMENT DISASSEMBLY 3 SET TOTAL DISASSEMBLY ...
Страница 76: ...686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA DAEWOO ELECTRONICS Corp ...