Part 4: Troubleshooting
1. TROUBLESHOOTING ..................................................................................... 4-1
1.1 No Power ................................................................................................. 4-1
1.2 No Picture ................................................................................................ 4-3
1.3 No Sound ................................................................................................. 4-5
2. CONTROL PORT FUNCTIONS ...................................................................... 4-6
2.1 System Control & I/O Port Table (IC801) ................................................ 4-6
2.2 IC Bus DA Converter (M62393, IC281) Port Functions ........................... 4-8
2.3 IC Bus I/O Expander (M62320, IC1851) Port Functions .......................... 4-8
2.4 IC Bus DA Converter (M62392, IC6211) Port Functions ......................... 4-8
2.5 Parallel Bus DA & I/O Port Functions ...................................................... 4-9
3. WAVEFORM .................................................................................................... 4-10
4. IC BLOCK DIAGRAMS .................................................................................... 4-11
Part 5: Parts Catalog
Part 6: Electrical Diagrams
1. PARTS DESCRIPTION AND READING IN SCHEMATIC DIAGRAM .............. 6-1
2. DIODE, TRANSISTOR AND IC PINS............................................................... 6-3
Chassis Block Diagrams ................................................................................... 6-4
Schematic Diagrams ......................................................................................... A3
Printed Wiring Board Diagrams......................................................................... A11
V
Содержание LV-7215U
Страница 9: ...Part 1 General Information ...
Страница 25: ...Part 2 Repair Information ...
Страница 43: ...Part 3 Adjustment ...
Страница 66: ...Part 4 Troubleshooting ...
Страница 77: ...Part 4 Troubleshooting 4 11 4 IC BLOCK DIAGRAMS AD8075 Selector IC201 AN7513 Audio Output IC5601 ...
Страница 78: ...Part 4 Troubleshooting 4 12 AN5870 RGB SYNC SW IC1201 IC5201 BA7078 Sync Separator IC5341 ...
Страница 80: ...Part 4 Troubleshooting 4 14 CXD3536 LCD Driver IC401 FA5502 P F Control IC621 ...
Страница 81: ...Part 4 Troubleshooting 4 15 M62392 M62393 D A IC6271 IC281 ML60851 USB Driver IC9801 ...
Страница 82: ...Part 4 Troubleshooting 4 16 STR Z2156 Power Switching Control IC631 TB1274 Video Decoder IC3101 ...
Страница 83: ...Part 4 Troubleshooting 4 17 TC90A69F Y C Separator IC2101 ...
Страница 84: ...Part 5 Parts Catalog ...
Страница 85: ......
Страница 99: ...Part 6 Electrical Diagrams ...