Sanyo CP21YS2 - Page 4

Chassis Block Diagrams
-4-
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
QXX
AVC568N
12 13
14
23
2827
34 33
29
26
OSD RED OUT(Active=Hig
h)
OSD GREEN OUT
(Active=High)
OSD BLUE OUT
(Active=High)
CRT UNIT
POWER PROTECT IN
(POWER ERR
OR=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
56
5
4
IC3701
AUDIO CONTROL
19
20
S-VIDEO IN (S-IN=LOW)
24
WOOFER MUTE
(To IC3701)
System Control
QXXAVC812---N
SM_21-BB4V(AC6-B)AUS 8/21/07 6:45 PM Page 4