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MB BOARD IC BLOCK DIAGRAM
IC1301: CXA2131CS
45
APC
<HUE>
ACC DET.
ACC AMP
CHROMA
CHROMA SW
TV/C2 IN
43
C1 IN
2
Y SW
CVBS2/Y2 IN
41
CVBS1/Y1 IN
4
MONITOR SW
COMB-C IN
7
VIDEO SW
9
COMB-Y IN
<VIDEO SEL>
MON OUT
6
<S SEL>
46
40
47
44
8
1
FSC
<FSC SW>
DEMOD.
C VCO
CHROMA
COLOR KILLER
AMP
<<KILLER ID OFF>>
FILTER ALIGNMENT
BPF
CAL. by fsc
<C BPF>
SHARPNESS DL
SHARPNESS AMP
TRAP + EQ
ATT
<SHARPNESS>
<TRAP OFF>
<SHP F0>
<PRE/OVER>
Y
COUNTDOWN
LINE COUNTER
<CD MODE>
V TIM GEN.
<INTERLACE>
<JUMP SW>
V SYNC SEP
<REF P>
<VSS>
<VBLKW>
H SYNC SEP
<HSS>
<H MASK>
AFC
<AFC GAIN>
HSAW GEN.
<FH HIGH>
<HOSC>
<<HLOCK>>
(ZAP)
<<HCENT>>
20
15
39
38
37
36
28
27
EYUV CLAMP
YUV SW
<YSEL>
YUVOUT
<YUVOUT>
DPIC
CLAMP
<DPIC>
COLOR AMP
RGB 1/2
<AGING>
<COLOR>
<AGING2>
<C OFF>
AXIS
<AXIS NTSC>
<AXIS PAL>
CLAMP
Y/C MIX
DC TRAN
RGB CLAMP
<DC TRAN>
VPROT
<<VGN>>
VM AMP
<VM LEV>
(OFF YS/YM)
WIDE SAW FUNC.
<ASPECT>
<SCROLL>
<UPPER VLIN>
<LOWER VLIN>
<V ZOOM>
<JUMP SW>
VSAW GEN
VTIM
PHASE DET.
H TIM GEN.
<H POSITION>
HD GEN.
<H BLK>
<AFC BOW>
<LEFT HBLK>
<AFC ANGLE>
<RIGHT HBLK>
HPROT
<HD W>
<<HNG>>
19
17
5
18
— 33 —
26
25
32
31
30
29
42
ABL FIL
3
ABL IN
ABL/PEAK LIM
AKB
<ABL MODE>
21
IK IN
<<IKR>>
<ABL VTH>
24
B OUT
23
G OUT
22
R OUT
I C BUS
2
DAC
35
SDA
DECODER
SW
STATUS I/F
34
SCL
14
VD-
VD SAW FUNC.
<VON>
<S CORRECTION>
<V SIZE>
<V LINEARITY>
<V POSITION>
<EHT COMP>
13
VD+
EW PARABOLA FUNC.
<H SIZE>
<TRAPEZIUM>
11
EW
<PIN AMP>
<EW DC>
<UPPER CPIN>
<LOWER CPIN>
IREF
REG
10
12
16
33
KV-25FS12 / 25FS12C
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