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• An abnormality occurs on the drive signals;
5V_SW signal (Power-on: H) is output from pin 146 of IC301 to Q661, IC65A
through Q301 on the Main board and Q662, Q65B and Q65C on the Power board.
FANDRIVE signal (Power-on: H) is output from pin 14 of IC1804 to IC671 and
IC681 through Q672 and Q682 on the Power board.
LAMP-BST-SW signal (Power-on: H) is output from pin 15 of IC1813 to IC611 on
the P.F. board through Q651 and PC643 on the Power board.
LAMP_POW signal (Power-on: L) is output from pin 2 of IC301 to lamp ballast board
through the lamp switch circuit, IC711, IC721 and IC731.
●
When the POWER indicator (red) is lighting, the symptom indicates that the projector
detected an abnormality in the circuit but is not specified error. Check the following;
• Lamp cannot turn on, check following signals;
LAMP_ERR signal (Error: H) is sent from the lamp ballast board and input to pin 8
of IC1822.
LAMP_POW signal (Power-on: L) is output from pin 2 of IC301 to lamp ballast board
through the lamp switch circuit, IC711, IC721 and IC731.
●
Reset switch
The microprocessor inside the projector may occasionally malfunction and does not
allow any controls. In this case, press the reset switch on the rear panel with a sharp
tool to restart the projector.
Part 4: Troubleshooting
4-2
Fig. 4-1
Содержание LV-5200U
Страница 2: ...CANON Power Projector LV 5200U D78 5382 LV 5200E D78 5383 SERVICE SMANUAL ...
Страница 9: ...Part 1 General Information ...
Страница 25: ...Part 2 Repair Information ...
Страница 45: ...Part 3 Adjustment ...
Страница 65: ...Part 4 Troubleshooting ...
Страница 84: ...Part 4 Troubleshooting 4 19 AD9884AKS A D IC8201 AN5870SB RGB SW IC5201 ...
Страница 87: ...Part 4 Troubleshooting 4 22 FA5502 P F Control IC611 CXD3526GG LCD Driver Timing Generator IC401 ...
Страница 88: ...Part 4 Troubleshooting 4 23 LA7217 Sync Separator IC5361 M62392 D A IC3561 ...
Страница 89: ...Part 4 Troubleshooting 4 24 M62393 D A IC281 IC7801 NJM2284M Switch IC2101 ...
Страница 91: ...Part 4 Troubleshooting 4 26 VPC3230D Video Decoder IC3101 ...
Страница 92: ...Part 5 Parts Catalog ...
Страница 94: ......
Страница 97: ...58 70 63 71 57 60 65 59 64 66 51 55 62 Page 2 CANON REF No LV 5200U D78 5382 LV 5200E D78 5383 ...
Страница 101: ...45 45 45 45 52 52 a 52 Page 4 CANON REF No LV 5200U D78 5382 LV 5200E D78 5383 ...
Страница 105: ...Page6 CANON LV 5200U REF NO D78 5382 LV 5200E D78 5383 A B C A6800 E FUSE LF901 L901 902 L903 LABEL2 ...
Страница 107: ...U 1 U 2 V 1 W X Y Z 1 Page 7 Z 2 CANON REF No LV 5200U D78 5382 LV 5200E D78 5383 ...
Страница 111: ...Part 6 Electrical Diagrams ...