![background image](http://html.mh-extra.com/html/canon/d78-5132/d78-5132_service-manual_62449083.webp)
Part 4: Troubleshooting
4-5
5V_SW.
S6V
15V
5V
7
P.F.C.
control
P.F.C.
Abnormal temperature detection inside
of the projector.
Abnormal temperature detection on
the Main board.
Interlock switch
TSW611
LAMP
CB2
CB2
K8CC-1
K8CC-4
CB1
LAMP.DET
LAMP
SW.
When an abnormal
temperature is detected at
the periphery of lamp
driver circuit, the voltage of
this line comes HIGH.
LAMP BALLAST UNIT
Switching power
supply
Check signal at pin 5
of T651
Abnormal temperature
detection at the
periphery of P.F.C.
circuit
Check that the thermal switch (TSW611)
is operating.
If temperature at peraiphery of P.F.C.
circuit reaches 95˚C, TSW611 turns on.
TSW611 -- OPEN: Normal
Q671, Q681
IC2641 ~ IC2681
Check that the FAN DRIVE
signal at pin 19 of IC1804 is
correct.
H : Power ON
Is projection of lamp cover inside
broken or not fitting correctry ?
Check the interlock switch (SW904)
and lamp cover.
SW904 -- OPEN : abnormal
Is thermal switch (SW902) operating ?
If peripheral temperatures at the lamp
house reaches 100˚C, the thermal
switch turns off.
SW902 -- OPEN: abnormal
(Power-On: H)
(Error: H)
F
A
N
_
D
R
IV
E
F
A
N
C
O
N
T
1
LAMP_BST_SW
LAMP_SW
LAMP_ERR
IC2831
PSDA
PSDA
IC2832
TEMP.
SENSOR
TEMP.
SENSOR
TEMP. BOARD
IIC BUS
SW902
SW904
Содержание D78-5132
Страница 2: ......
Страница 3: ...CANON Multimedia Projector LV 7105U D78 5132 LV 7105E D78 5133 SERVICE SMANUAL ...
Страница 10: ......
Страница 11: ...Part 1 General Information ...
Страница 12: ......
Страница 33: ...Part 2 Repair Information ...
Страница 34: ......
Страница 54: ......
Страница 55: ...Part 3 Adjustment ...
Страница 56: ......
Страница 77: ...Part 4 Troubleshooting ...
Страница 78: ......
Страница 81: ... Memo Part 4 Troubleshooting 4 3 ...
Страница 91: ...Part 4 Troubleshooting 4 13 TP561 S H B INTPUT TP571 TP1571 S H B OUTPUT TP505B TP506B S H B OUTPUT ...
Страница 92: ...Part 4 Troubleshooting 4 14 4 IC BLOCK DIAGRAMS FA5332M Power Factor Control IC01 AN5265 AUDIO OUTPUT IC001 ...
Страница 93: ...Part 4 Troubleshooting 4 15 PW164 10RK System Control Scan Converter IC301 CXA2111R LCD Driver IC401 ...
Страница 94: ...Part 4 Troubleshooting 4 16 M62358FP DAC IC431 CXD3503R White Uniformity Compensation IC471 ...
Страница 96: ...Part 4 Troubleshooting 4 18 IDT71V016S RAM IC811 CXA2016S Sync Separator IC1021 ...
Страница 97: ...Part 4 Troubleshooting 4 19 MC10H351ML IC1501 LM76CHMX Thermal Sensor IC1831 IC1832 ...
Страница 99: ...Part 4 Troubleshooting 4 21 TC4053BF Switching IC5001 SAA7114H Digital Video Processor IC5101 ...
Страница 100: ...Part 4 Troubleshooting 4 22 ...
Страница 101: ...Part 5 Parts Catalog ...
Страница 102: ......
Страница 103: ...PARTS CATALOG Multimedia Projector LV 7105U REF NO D71 5132 LV 7105E D71 5133 Power Projector LV 7105J D71 5131 ...
Страница 104: ......
Страница 113: ...U 1 U 2 V 1 V 2 W 1 X 1 Z Page 5 CANON LV 7105J REF No D78 5131 LV 7105U D78 5132 LV 7105E D78 5133 ...
Страница 117: ......
Страница 118: ...Part 6 Electrical Diagrams ...
Страница 119: ......