![background image](http://html.mh-extra.com/html/canon/d78-5232/d78-5232_service-manual_62451008.webp)
2.11 HDTV Gain Adjustment ......................................................................... 3-15
2.12 VIDEO Pedestal Adjustment .................................................................. 3-16
2.13 VIDEO A/D Input Adjustment ................................................................. 3-16
2.14 A/D Offset Adjustment ........................................................................... 3-17
2.15 Video Gain Adjustment .......................................................................... 3-17
2.16 Video Gamma Shift Adjustment ............................................................. 3-18
2.17 Common Center Adjustment ................................................................. 3-18
2.18 White Balance Adjustment ..................................................................... 3-18
2.19 Note on White Uniformity Adjustment .................................................... 3-18
3. OPTICAL ADJUSTMENTS .............................................................................. 3-19
3.1 Contrast Adjustment ................................................................................ 3-19
3.2 Condenser Lens Adjustment ................................................................... 3-20
3.3 Relay Lens (OUT) Adjustment ................................................................. 3-21
4. TEST POINTS AND LOCATIONS ................................................................... 3-22
Part 4: Troubleshooting
1. TROUBLESHOOTING ..................................................................................... 4-1
1.1 No Power ................................................................................................. 4-1
1.2 No picture ................................................................................................ 4-4
1.3 No sound ................................................................................................. 4-7
1.4 Lens Motor Error ...................................................................................... 4-8
2. PORT FUNCTIONS ......................................................................................... 4-9
2.1 System control & I/O port table (IC801) ................................................... 4-9
2.2 Parallel I/O expander (IC1801, M66500FP) ............................................. 4-11
2.3 IC bus I/O expander (IC1641, M62320FP) port function ......................... 4-12
2.4 IC bus DA converter (IC212, M62393FP) port function ........................... 4-12
2.5 IC bus DA converter (IC2381, M62393FP) port function ......................... 4-12
2.6 IC bus DA converter (IC3551, M62399FP) port function ......................... 4-13
2.7 IC bus DA converter (IC3501, M62399FP) port function ......................... 4-13
3. WAVEFORMS ................................................................................................. 4-14
4. IC BLOCK DIAGRAMS .................................................................................... 4-16
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
Circuit Block Diagram (LV-7545U/E)................................................................. A3
Power Supply Lines (LV-7545U/E) ................................................................... A4
Schematic Diagrams ......................................................................................... A5
Printed Wiring Board Diagrams......................................................................... A13
V
Summary of Contents for D78-5232
Page 2: ...CANON Power Projector LV 7545E D78 5231 SERVICE SMANUAL ...
Page 9: ......
Page 10: ...Part 1 General Information ...
Page 24: ......
Page 25: ...Part 2 Repair Information ...
Page 46: ...Part 3 Adjustment ...
Page 69: ...Part 4 Troubleshooting ...
Page 86: ...Part 4 Troubleshooting 4 17 BH3540 Volume Control IC1652 CXA2101AQ RGB Matrix IC4101 ...
Page 90: ...Part 4 Troubleshooting 4 21 LB1645 Motor Drive IC1601 LC863316 SUB CPU IC1851 ...
Page 91: ...Part 4 Troubleshooting 4 22 ML60851 USB I F IC9801 M62393 D A IC212 IC2381 ...
Page 93: ...Part 4 Troubleshooting 4 24 SII161ACT DVI I F IC8001 STR Z2156 Power Switching IC651 ...
Page 94: ...Part 4 Troubleshooting 4 25 TA1287 RGB YUV Converter IC4551 TB1274AF Video Decoder IC1101 ...
Page 95: ...Part 4 Troubleshooting 4 26 TDA7056 Audio Output IC1631 IC1632 ...
Page 96: ...Part 5 Parts Catalog ...
Page 97: ......
Page 113: ...Part 6 Electrical Diagrams ...
Page 130: ......