1-1
BLOCK DIAGRAMS
IF/Video/System Control Block Diagram
L2200XBLIF
58
73
75
16
63
56
32
SCL
CF31
CF32
VCO F/B
Q31
AFT
A
GC-IN
EXT
-H
PR
O
TECT
-2
PR
O
TECT
-1
PR
O
TECT
-3
P-ON-H
SD
A
TUNER
LINE
TO
CR
T/H.V
. BLOCK
WH301A
TO
CR
T/H.V
. BLOCK
WH301B
BLUE
5
GREEN
4
RED
3
IC111
IC31
(IF SIGNAL PR
OCESS)
REMO
TE
SENSOR
KEY
SWITCH
CHR
OMINANCE
PR
OCESS
CIRCUIT
LUMINANCE
PR
OCESS
CIRCUIT
H-SYNC
PR
OCESS
CIRCUIT
V
-SYNC
PR
OCESS
CIRCUIT
VCXO
OSD
RGB MA
TRIX
/COLOR CONT
OSD SW
/CONTRAST
/BRIGHTNESS
RGB DRIVE
/CUT OFF
/H.V
. BLK
LPF
14
11
53
46
45
38
37
AC
L
H-DRIVE
FBP
V
-DRIVE
V
-RAMP-F/B
TO
A
UDIO/PO
WER
CONTR
OL BLOCK
TO
PO
WER SUPPL
Y BLOCK
TO
CR
T/H.V
. BLOCK
PR
O
TECT
-2
PR
O
TECT
-1
PR
O
TECT
-3
P-ON-H
KEY
-IN2
KEY
-IN1
RCV
-IN
RCV101
JK701
VIDEO-IN
24
X301
3.58MHz
SA
W
FIL
TER
VIF
AMP
VIDEO
DET
VCO
4.5MHz
FIL
TER
LPF
IF A
GC DET
EQ
AMP
RF
AG
C
AMP
AFT
4.5MHz
TRAP
FM
DET
AF
AMP
16
11
13
18
6
17
4
2
7
1
9
TU1
SF1
IF
AG
C
SD
A
SCL
EXT
.CLK
1
11
5
4
8
IC151
(MEMOR
Y)
SCL
6
SD
A
5
14
26
TU-A
UDIO
52
51
50
MAIN CB
A
VIDEO SIGNAL
RF/IF SIGNAL
A
UDIO SIGNAL
TV MICON/VIDEO
/A
UDIO/CHR
OMA
/DEFLECTION
67
68
76
79
69
66
70
WF16
WF1
WF6
SCL
SD
A
TO
A
UDIO/PO
WER
CONTR
OL BLOCK
WF2
PR
O
TECT
-2
PR
O
TECT
-1
SD
A
4
I2C-OPEN
2
SCL
5
CN301
(NO CONNECTION)
CN301 is used f
or
adjustment at f
actor
y
7
CS
72
I2C-OPEN
