-4-
Chassis Block Diagrams
SYSTEM CONTROL
BASS EXPANDER / WOOFER (BASS ON=HIGH)
37
39
KEY SWITCH IN
KEY
SWITCH
IIC SCL
32
31
36
IIC SDA
POWER ON/OFF
PHOTO COUPLE
(ON=HIGH, OFF=LOW)
IC201
QXXAVC568N
12
13
14
23
28
27
34
33
29
26
OSD RED OUT
(Active=High)
OSD GREEN OUT
(Active=High)
OSD BLUE OUT
(Active=High)
CRT UNIT
POWER PROTECT IN
(POWER ERROR=LOW)
POWER CIRCUIT
etc.
IIC SCL
IIC SDA
IC801
MEMORY
OSC
X801
32.768KHz
CPU OSC OUT
CPU OSC IN
LED
ON-TIMER LED OUT
(ON TIMER ON=Low)
RC SIGNAL IN
(ACTIVE=HIGH)
RC PRE-AMP.
30
SOUND MUTE
(MUTE=H)
IC001
AUDIO AMP.
A101
F/S TUNER
RESET INPUT (RESET=LOW)
40
5
6
5
4
IC3701
AUDIO CONTROL
19
20
S-VIDEO IN (S-IN=LOW)
24
QXXA
VC813---N
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