Sanyo 3000 ANSI LUMENS PLC-XU305, Service Manual

Page: 52 / 122

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Chassis Block Diagrams
FAN_C
ON_C
373
POWER
LAMP BALLAST
IC001
A
U
DI
O
-OUT
<TP
A3123>
IC5001
A
U
DI
O
-C
O
NT
OL
<NJW1156
>
R
C
RECEIVER
POWER SUPPL
Y
SW901 LAMP C
OVER
SWIT
CH
P.
F.
C
ONTROL
SP901
SPEAKER
MUTE
LAMPDC_ON
R
C
MAIN
Q6842
R/
C
IC9882
INVERTER
<HD74LVC14T>
3
4
ON:H ON:H ON:H
ERROR:H
P
-ON:H
P.
Fail:L
ON:H
6
2 1
1
M
u
te
O
n
:H
M
u
te
O
n
:H
Po
wer On:H
P
o
wer On:L
L/R
VOL
UME
POWER_LED
BLAST_A
C
BLAST_A
C
FAN_ERR
TEMP_LED
ON_33V ON_150
V
346
284
184 11
LAMP_DE
T
185
201
ON_50V
269 110
REA
D
Y
_LED
P_F
AI
L
215
FAN_SW1
FAN_SW1
285
P
o
wer On:H
LAMP_DC_ON
89 91
CHO_T
XD
CHO_RXD
CHO_T
XD
CHO_RXD
MUTE
KEY1
295 26
92 28
KEY2
126
POW_KE
Y
R/C-PW
R/C
SCL1/SD
A1
SCL2/S
D
A
2
268 214 211,294
SCL0/SD
A0
293,212 290,208
FAN_C
ON_A
TD
A
C
1
30
IC301
SYSTEM CONTROL
Q6843
D6833
Q037
Q6841
ON:H
LAMP_LED
Q6844
D6831 D6832
LAMP REPL
A
C
E
W
A
RNIN
G
POWER
IC4891 NAND
2
13
1 10
IC9882
INVERTER
K8R
K6R
K8S
3 1
K8H
4 5 1
K8D
K29D
3
S3.3V
Q6861
FA
N
C
ONTROL CIRCUIT
KEY SWIT
CH
SCL2_5V/SD
A2_5V
9
K8F
1 3
LAMP_DE
T
ON_18
V
363
ON:H
LED_MCI
Q6845
D6834
WLAN
FAN_SW2
FAN_SW2
345
IC1802
I/O EXPANDER
SC
D
T
8
SIRST
94
DVI_HPD
93
SIPD
O
92
SIPD
91
IC8001
DVI-RECEIVER
<SiI7169
>
R
X
D
2
_
M
C
I
75
T
X
D2_MCI
74
R
X
D
_
M
C
I
73
T
X
D_MCI
72
MCI_O
N
48
UP
D
A
TE
79
POWER_ON_MCI
50
NE
T_H/L
97
NE
T
W
OR
K
(MCI)
D
IR
X
G
51
D
IR
X
R
52
D
IR
X
B
100
DDC_SW
1
99
IC385
1
G-SENSO
R
<MXA2500>
67,68 1,5
DVI
System control