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-37-
Chassis Block Diagrams
14-15
18-19
16-17
SER
VICE
POR
T
KEY
SWITTCH
R/C
RECEIVER
LED-On:
H
R/C BO
ARD
CONTR
OL BO
ARD
AV
BO
ARD
SENSOR BO
ARD
MAIN BO
ARD
IC1801
OUTPUT
EXPANDER
IC1871
COMPARATOR
OPTION RESIST
ORS
K8E
12
1
16
13
15
14
K8G
K68B
45,46
174
182
From the power fail
detection diodes.
IC5201
SELECT
OR
IC101
VIDEO
DECODER
IC401
COLOR
CORRECT
IC501,IC531,IC561
LCD DRIVER
IC5303
IC5001
IC401
IC1821
IC501,IC531,IC561
IC9401
IC5631
IC5003
Q101
K50B
Q6201
IC401
IC501
IC531
IC561
IC5621
IC501,IC531,IC561
IC1841
EEPROM
IC4801
NAND
IC8801
TEMP.
SENSOR
IC8802
TEMP.
SENSOR
IC8821
TEMP
.
SENSOR
M_SCL2/SD
A2
Q1843 Q1844
44,116
M_SCL1/SD
A1
P_SCL2/SD
A2
P_SCL1/SD
A1
Q1841 Q1842
173
47,181
140
1
2
178
71
201
141
72
K10E
K50B
RESET
SW
K8H
K88A
P_F
AIL
17-19
12
FAN_SW
ON_3.3V
IC1802
OUTPUT
EXPANDER
19
TURBO_ST
IRM_RS
17
12
13
SH_RGB_ST
14-16
R_V1/V2
B_V1/V2
G_V1/V2
FIL
T_480P
VO
L
IC3551
DAC
5
S/CV_SW
6
15
PC/A
V_SW
14
13
CG_FIL
T
4
CBAL_SW
IC3561
DAC
4-6
15
14
16
2-4
5
6
7
8
3,5
1
13 14 15
19
17-18
K8811
K48L
K68C
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
SCLK/SD
AT
A_PW
IC1882
LAMP CPU
IC1881
INVERTER
DIMMER
ON/OFF
LAMP_DET
FA
N
CONTR
O
L
PO
W_ON
IC9401
TURBO
UNIT_PO
WER
CN202
K8A
3
4
5
2
UNIT_LAMP B
ALLAST
CN300
K48K
1
5
4
SW BO
ARD
LAMP CO
VER SW
SW8801
1-2 3-4
56,127
117,180
SCLK/SD
AT
A
6
5
IC1821
B
UFFER
IC8201
A/D
IC3571
DAC
IC5302
YUV_SYNC
4
7
4
3
1
6
4
2
9
11
1
6
IC361
OR GA
TE
5
3
IC801
FLASH
IC1861
INVER
TER
P_SCL1/SD
A1
ERR
OR :
L
ERR
OR :
L
Lamp-ON :
H
Po
w
er-ON :
H
ERR
O
R :
Open
Lamp-ON :
L
Lamp Dimmer Control
L = Lo
w beam.
H = High Beam
Mute-ON :
H
3.3V to 5V
3.3V to 5V
red
yellow
green
red
R_C
PO
WER
LAMP_REP
W
ARNING
KEY01-03
READ
Y
MUTE
D0 - D15
A1 - A21
NMI
WR/RD
5V_SW
MONIT
OR_SW
MUTE_A
V
ON_15V
RXD/TXD
KEY11-13
LAMP_ERR
9
MUTE_SW
OPTION2
OPTION3
OPTION1
ERROR :
H
IC351
B
UFFER
IC9801
RS232C DRIVER
RECEIVER
CPU_RESET
MUTE_A
V
MONIT
OR_SW
MUTE_SW
RXD1/TXD1
FIL
T_480P
FAN_CONT3
FAN_CONT2
FAN_CONT1
17
FAN_CONT4
REF_R/G/B
LAMP_PO
W
FAN_ERR
LAMP_PWM
IC301
MAIN CPU
ERR
OR :
H
TXL
SCEL
RXL
Q5007, IC1811
Q2501
K50B
K50B
Q3582,Q5622
●
System Controls
Содержание LV-S4
Страница 1: ...Multimedia Projector SERVICE MANUAL Original Version FILE NO Model No LV S4 ...
Страница 49: ... 49 BA9743AFV DC DC Converter IC371 IC Block Diagrams BA7078AF Sync Detector IC5301 ...
Страница 50: ... 50 IC Block Diagrams LM4865 Audio Amplifier IC5003 PW168A Scaler Main CPU IC301 ...
Страница 51: ... 51 VPC3230D Video Decoder IC101 IC Block Diagrams TA1370FG Sync Separator Frequency Counter IC5302 ...
Страница 52: ...SERVICE MANUAL LV S4U LV S4E ...