Service manual

EPSON ELP-3500 Service Manual
2-8
Main Board Circuit Block
Figure 2-9.
C
N
5
0
1
FU500 451002 (2 A)
FU501 451002 (2 A)
FU502 451002 (2 A)
FU503 CCP2E20 (0.8 A)
FU504 451002 (2 A)
FU505 CCP2E20 (0.8 A)
CN505
SRAM
Flash ROM
Memory
controller
t
IC301
CPU
PAJ system
control
IC102
ADC
Line buffer
PC control
IC600 Control
panel power
On/Off control
Display signal
generator
IC201
Digital-
Video processor
Fan control
circuit
PLL
Speaker
AMP
Digital croma
A/D
converter
C
N
5
0
2
C
N
5
0
3
C
N
4
0
0
C
N
5
0
4
CN
600
OSC
8 MHz
C
N
1
0
0
C
N
2
0
0
C
N
1
0
1
OSC 16M
Fuse
Connects to the
power supply
with cable
+18 V
+12 VS
+12 VA
+5 VA
+5 VD
+5 VT
POWER ON
MAD
Connects
to the
control panel
LED control
Thermos
signal
SCL
SBA
M1 11
(Mouse)
R/G/B IN
GIN
HS/VS
Connects to
receptor board
Connects to
the interface
board
G
S
0
7
B
S
0
7
Read / write
signals
Lamp control
Intake
fan
Exhaust
fan
Speaker
RT 0 ~ 7 / GT 0 ~ 7 / BT 0 ~ 7
Display signal / data clock
Connects to
the driver
board
Connects
to the interface
unit (IB1)
S-Video/Video in
Audio R/L in
Audio out
R
S
0
7