Sanyo CP21G1 - SYSTEM CONTROL

-4-
Chassis Block Diagrams
SYSTEM CONTROL
12
KEY SWITCH IN
KEY
SWITCH
SCL
2
1
31
SDA
POWER ON/OFF
PHOTO COUPLE
(ON=HIGH, OFF=LOW)
IC201
IF/VIDEO / CHROMA/DEF.
IC801
CPU
QXXABV864
22
19 20
21
18
17
27
34
7 6
32
28
OSD BLK OUT(Active=High)
OSD RED OUT(Active=High)
OSD GREEN OUT(Active=High)
OSD BLUE OUT(Active=High)
DEFLECTION
CIRCUIT
HORIZ. SYNC IN (ACTIVE=LOW)
VERT. SYNC IN (ACTIVE=LOW)
POWER PROTECT IN
(POWER ERROR=LOW)
POWER CIRCUIT
etc.
SCL
SDA
IC802
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.
IC001
AUDIO AMP.
(MONO)
A101
F/S TUNER
AFT SIGNAL INPUT
10
RESET INPUT (ACTIVE=LOW)
13
MUTE OUTPUT (MUTE ON=HIGH)
29
56
3