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Part 2: Repair Information
2-2
2. CIRCUIT PROTECTIONS
This projector is equipped with the following circuit protections to operate in safety. If
the abnormality occurs inside the projector, it will automatically turn off by operating
one of the following protection circuits.
2.1 Fuse
The fuse is located inside of the projector.
When either the LAMP indicator or the
READY indicator is not illuminated, a fuse
may be opened. Check the fuse according to
the following steps. The specified fuse should
be used as follows;
[How to replace the fuse]
1. Remove the cabinet top according to step
1 of "Service (Mechanical Disassembles)".
2. Remove the fuse from fuse holder.
To install the fuse, take reversed step in the above.
2.2 Thermal Switch
When the internal temperature of the
projector reaches near 90˚C, the thermal
switch (SW905) turns off the AC main power
supply automatically.
(Check the resistance between the terminals
of the thermal switch by using a tester. If it is
open, the thermal switch may be in
operative.)
Reset the thermal switch according to the
following procedure.
[How to reset the thermal switch]
1. Remove the cabinet top according to step
1 of "Service (Mechanical Disassembles)".
2. Press the reset button on the thermal switch.
Fuse Part No. DY4-6319-000 (250V 6.3A)
Before pressing the reset
button, disconnect the AC
cord from the projector.
CAUTION
Fig. 2-2
Fig. 2-1
Fuse
Filter unit
Lamp cover
Содержание LV-7545U
Страница 2: ...CANON Power Projector LV 7545E D78 5231 SERVICE SMANUAL ...
Страница 9: ......
Страница 10: ...Part 1 General Information ...
Страница 23: ...7 SUPPORTED COMPUTER SYSTEM MODE See the attached sheet Owner s Manual page 26 Part 1 General Information 1 13 ...
Страница 24: ......
Страница 25: ...Part 2 Repair Information ...
Страница 46: ...Part 3 Adjustment ...
Страница 69: ...Part 4 Troubleshooting ...
Страница 86: ...Part 4 Troubleshooting 4 17 BH3540 Volume Control IC1652 CXA2101AQ RGB Matrix IC4101 ...
Страница 87: ...Part 4 Troubleshooting 4 18 FA5332M P F Controller IC601 FA7612CA PWC Controller IC6602 IC6603 IC6616 ...
Страница 90: ...Part 4 Troubleshooting 4 21 LB1645 Motor Drive IC1601 LC863316 SUB CPU IC1851 ...
Страница 91: ...Part 4 Troubleshooting 4 22 ML60851 USB I F IC9801 M62393 D A IC212 IC2381 ...
Страница 92: ...Part 4 Troubleshooting 4 23 M62399 D A IC3501 IC3551 PW365 System Control Scan Converter IC301 ...
Страница 93: ...Part 4 Troubleshooting 4 24 SII161ACT DVI I F IC8001 STR Z2156 Power Switching IC651 ...
Страница 94: ...Part 4 Troubleshooting 4 25 TA1287 RGB YUV Converter IC4551 TB1274AF Video Decoder IC1101 ...
Страница 95: ...Part 4 Troubleshooting 4 26 TDA7056 Audio Output IC1631 IC1632 ...
Страница 96: ...Part 5 Parts Catalog ...
Страница 97: ......
Страница 101: ...62 54 63 53 62 58 61 64 56 59 70 71 52 55 65 Page 2 CANON LV 7545J REF No D78 5231 LV 7545U D78 5232 LV 7545E D78 5233 ...
Страница 105: ...Page 4 CANON LV 7545J REF No D78 5231 LV 7545U D78 5232 LV 7545E D78 5233 23 a 23 b 23 51 b 51 a 51 43 43 2 ...
Страница 113: ...Part 6 Electrical Diagrams ...
Страница 130: ......