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6-6
Chassis Block Diagrams
PO
WER
LAMP_REP
R_C
USB
CONTR
OL
POR
T
KEY
SWITTCH
R/C
RECEIVER
LED-On:
H
R/C BO
ARD
AV
B
O
A
R
D
MAIN BO
ARD
IC1801
OUTPUT
EXPANDER
IC1871
COMPARATOR
OPTION
RESISTORS
K8D
12
1
16
13
W
ARNING
15
14
45,46
174
182
From the power fail
detection diodes.
IC5201
SELECT
O
R
IC101
VIDEO
DECODER
IC401
COLOR CORRECT
IC1841
EEPROM
IC4852
AND
IC9861
USB
CONTR
O
L
IC8811
TEMP.
SENSOR
IC8821
TEMP.
SENSOR
IC8831
TEMP.
SENSOR
IC4811
LAMP
CONTROL
M_SCL2/SD
A
2
Q1843 Q1844
44,116
M_SCL1/SD
A
1
P_SCL2/SD
A
2
P_SCL1/SD
A
1
Q1841 Q1842
IC501,
IC531,
IC561
S&H
IC9801
RS232C DRIVER
RECEIVER
173
47,181
140
2
2
1
1
178
K10T
K3T
K68A
K8A
K10Y
K3Y
RESET
SW
P_F
AIL
KEY01-03
17-19
READ
Y
12
SC_SW
DC_ON
ON_3.3V
IC1803
OUTPUT
EXPANDER
16
15
FAN_SW2
18
17
FAN_SW1
19
LAMPDC_ON
IC1804
OUTPUT
EXPANDER
TURBO_ST
13
R/G/B_ST
14-16
IC1802
OUTPUT
EXPANDER
PC1/PC2_SW
19
S/CV_SW
PC/A
V_SW
MUTE
16
17
12
R_V1/V2
14-15
B_V1/V2
18-19
G_V1/V2
16-17
KEY11-13
2-4
S_SW
9
LAMP_ERR
8
OPTION2
OPTION1
6
7
5
OPTION3
51
45,43
51,52
47-50
7,8
K690
K8S
K29D
Alw
a
ys A
v
ailab
le
Alw
a
ys A
v
ailab
le
Standb
y off
Standb
y
off
PO
WER
LAMP_REP
W
ARNING
IC1811
BUFFER
3
2
D0 - D15
A1 - A21
SCLK/SD
AT
A_PW
IC4801
INVERTER
S-VIDEO
S_SW
USB+/USB
-
CPU_RESET
RXD1/TXD1
PC1/PC2_SW
TXL
SCEL
RXL
IC351
B
UFFER
IC9401
DIGIT
A
L
ENHANCER
LAMP B
ALLAST
PO
WER BO
ARD
CN02
K8H
3
K6R
4
1
SW BO
ARD
LAMP CO
VER SW
SW902
1
3
NMI
RXD/TXD
56,127
WR/RD
LAMP_PO
W
FAN_ERR
LAMP_PWM
117,180
SCLK/SD
AT
A
IC1821
B
UFFER
IC8201
A/D
IC4811
IC3531
DAC
FAN_CON_C
6
FAN_CON_A
4
FAN_CON_B
5
IC7961
DAC
IC5302
YUV_SYNC
IC5001
AUDIO
4
IC4851
OR
4
19
20
11
4
2
8
9
3
7
3
12
13
1
6
IC361
OR GA
TE
5
3
IC801
FLASH
TXL
SCEL
RXL
IC1861
INVER
T
ER
ERR
OR :
L
ERR
OR :
L
Lamp-ON :
H
ERR
OR :
H
ERR
OR :
H
ERR
OR :
Open
Lamp-ON :
L
Lamp Dimmer Control
L = Lo
w beam.
H = High Beam
3.3V to 5V
3.3V to 5V
red
yello
w
green
red
FAN CONTR
O
L
CIRCUIT
5V_SW
LAMP_BST_SW
DC_ON
LAMPDC_ON
PO
WER
OSCILLA
TION
CIRCUIT
K8R
12
11
IC301
SYSTEM CONTROL
System controls
Содержание D78-5532
Страница 2: ...CANON Multimedia Projector LV X4U D78 5532 LV X4E D78 5533 SERVICE SMANUAL ...
Страница 9: ...Part 1 General Information ...
Страница 26: ...Part 2 Repair Information ...
Страница 43: ...Part 3 Adjustment ...
Страница 62: ...Part 4 Troubleshooting ...
Страница 79: ...Part 4 Troubleshooting 4 17 AN5870SB RGB SYNC SW IC5201 LM4889 Audio Amplifier IC5031 ...
Страница 81: ...Part 4 Troubleshooting 4 19 FA5502 P F Control IC621 VPC3230D Video Decoder IC101 ...
Страница 82: ...Part 4 Troubleshooting 4 20 L3E07070 Signal Processor for TFT LCD IC401 NJW1141 Audio Selector IC5001 ...
Страница 83: ...Part 4 Troubleshooting 4 21 STR Z2156A Power Switching Control IC631 PW168A Scaler Main CPU IC301 ...
Страница 84: ...Part 4 Troubleshooting 4 22 TA1370FG Sync Separator Frequency Counter IC5302 ...
Страница 85: ...Part 5 Parts Catalog ...
Страница 86: ......
Страница 94: ......
Страница 96: ...V 1 U 2 U 1 V 2 Z 1 Z 2 X Y W Accessories Page 5 CANON LV X4J LV X4U LV X4E REF NO D78 5531 D78 5532 D78 5533 ...
Страница 100: ...Part 6 Electrical Diagrams ...