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6-7
Chassis Block Diagrams
3,4
7,8
9,10
A
V
BO
ARD
Lamp Error
: H
Lamp-On: L
FN904
FN905
FN906
12
12
12
FN902
12
FN901
12
FN903
12
S15.5V
S6V
-
5V
S15.5V
15.5V
S-5V
K6D
PO
WER BOP
A
RD
BRIDGE
DIODE
P.
F.
CONTR
OL
IC7861
FAN CONTR
O
L
IC7911
FAN CONTR
O
L
IC651
PO
WER
OSC
.
T651
CONVER
TER
TRANS
.
PC643
Q651
PC642
PC641
1-2
3
5-7
11 12
9
1-2
3
5-7
11 12
9
4
3
1
A
C
INPUT
THERMAL SW
FUSE
K6A
CN01
K6B
IC5641
12V
Q2501
ON_15V
15.5VL
5V
A
IC5642
9V
L2506
15.5VP
D3612
D3611
IC5631
3.3V
IC491
1.8V
D3603,D3604
L5611
S5V_PW
IC371
IC5601
S5V
IC3541
5V_REF
Q372
S1.5V_PW
Q371
S3.3V_PW
IC392
S2.5V_PW
D3602
D3609
IC161
S3.3V_M
D3608
D3601
D3607
D3606
IC5081
5V_A
UDIO
SW BO
ARD
LAMP
CO
VER SW
UNIT_LAMP B
ALLAST
IC1871
COMP
A
RA
TO
R
IC301
SYSTEM
CONTR
O
L
12V
S5V
S-5V
FAN_SW2
FAN_SW1
FAN_CON_A
FAN_CON_B
FAN_CON_C
IC1803
EXP
ANDER
IC7961
DA
C
IC4811
LAMP
CONTR
OL
IC4801
INVERTER
RXL
TXL
SCEL
5V
LAMP_PO
W
LAMP_PWM
FAN_ERR
IC4852
AND
RXL
TXL
SCEL
4
3
1
CN02
375V
IGNIT
OR
K8S
K690
SW901
MAIN BO
ARD
P
ow
er F
ail:
L
P
ow
er F
ail:
L
Fan Error : L
Stand-b
y :
L
Stand-b
y :
L
Stand-b
y :
L
Stand-b
y :
L
PWM
Lamp-On: H
BLUE
LCD
PANEL
GREEN
LCD
PANEL
RED
LCD
PANEL
15.5VP
Q661
Q3582
Q662
19
17
15
16
18
4
5
6
174
20
19
9
3
8
12
7
3
2
71
72
140
178
K3T
K10T
K25B
K25G
K25R
K6R
K8R
K8H
FAN_C
FAN_B
FAN_C
FAN_B
IC1811
B
UFFER
LAMP_ERR
Fan Loc
k :
H
PRIMAR
Y
CIRCUIT
4
11
2
3
8
13
4
4
Q3601
D3617
D3614
D3616
K6L
K6M
K6K
K8P
K6J
K8N
Lamp Error
: H
IC4851
OR
LAMPDC_ON
DC_ON
ON_5V
A
ON_5V
A
S6V
ON_3.3V
Power supply & protection circuit
Summary of Contents for D78-5532
Page 2: ...CANON Multimedia Projector LV X4U D78 5532 LV X4E D78 5533 SERVICE SMANUAL ...
Page 9: ...Part 1 General Information ...
Page 26: ...Part 2 Repair Information ...
Page 43: ...Part 3 Adjustment ...
Page 62: ...Part 4 Troubleshooting ...
Page 79: ...Part 4 Troubleshooting 4 17 AN5870SB RGB SYNC SW IC5201 LM4889 Audio Amplifier IC5031 ...
Page 81: ...Part 4 Troubleshooting 4 19 FA5502 P F Control IC621 VPC3230D Video Decoder IC101 ...
Page 84: ...Part 4 Troubleshooting 4 22 TA1370FG Sync Separator Frequency Counter IC5302 ...
Page 85: ...Part 5 Parts Catalog ...
Page 86: ......
Page 94: ......
Page 100: ...Part 6 Electrical Diagrams ...