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5-5. IC BLOCK DIAGRAMS
A BOARD IC201 TDA7495
A BOARD IC501 STV 9379
VOLUME
>
GENERATOR
AMPLIFIER
MUTE/STBY
THERMAL
PROTECTIONS
PROTECTION
VOLUME
A BOARD IC101 TDA9817/V1
Sh
AFC
DETECTOR
VIDEO
DEMODULATOR
AND AMPLIFIER
QSS MIXER
INTERCARRIER
MIXER
AM DEMODULATOR
FM-PLL DEMODULATOR
APC
PAUNTSC
sw
EYUV CLAMP
<i>
|___,}
a.57ag45mbz
DEMOD
NTSC
| vuv sw
9.582058MHz
PAL,SECAM
<¥ SEL>
Yuv OUT
ABL/PEAK LIM
<KILLER OF F>
<C DECOD>
<ABL MODE>
RGB 2/2
<ABL VTH>
ACO DET.
COLOR SYSTEM DISCRIMINATOA
PAL 1D <PAUNTSC> <XTAL ID>
cotoeee
<
>
=
PAL/NTSC COLOR KILLER <KILLER>
DELAVUNE
eee
Bae
all
ce
Rar,
SECAM ID <SECAM>
PALUSECAR
A
SIE
nt Sa
Falawizel
4
<XTAL> <COL SYSTEM> <COL LOOP>
{
)
AXIS
3m
Sal<z|=< $/e/Stlze
ge 425
CHROMA | | ID START> <ID STOP> <HUE>
OE-
<COL MATRIX>
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EMPHASIS
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EP
RGB CLAMP
[—?]
a
v
PAL 4.43MHz
NTSC 3.58MHz
C BPF
nbdecibte
PC BUS
Pd]
DECODER
(OFF YS/VM)
STATUS VT
ACC AMP
ACC DET
FILTER ALIGNMENT
DL
VD SAW FUNG
Bases
PAUNTSC
SHONES® AAG
<VON>
<S CORRECTION>
:
300 x 200nS
WIDE SAW FUNC
<VSIZE>
<V LINEARITY>
ATT +>] NTSC 3.58MHz
<SHARPNESS>
SECAM
<V POSITION>
<EHT COMP>
SECAM 4.2 - 4.43MHz
<SHP FO>
CHROMA SW
TRAP OFF
300 x 200nS
<PREOVER>
<ASPECT>
@)
ie
7
<Y DELAY>
<SCROLL>
<UPPER VLIN>
Ysw
=
COUNT DOWN
LINE COUNTER
<LOWER VLIN>
V TIM GEN
Vv SAW GEN
<V ZOOM>
EW PARABOLA FUNG
(4)
|_| <FIELD FREQ>
<UNDER SCAN>
(50/50)
<V UNDER SCAN>
<H SIZE>
<TRAPEZIUM>
MONITOR SW
V SYNC SEP [| <cD MODE>
vTIM
<PIN AMP>
<EW DC>
<VSS>
<INTERLACE>
<FIELD IO>
<CORNER PIN>
(7)
VIDEO SW
<VSS LPF>
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| -cae-|
T r e n e s e |
[axe
nnwaew || [Eee
<S SEL>
H
SYNC
SEP
<!
>
ae
"<HSS>
<APC GAIN>
Perna
<H BLK>
<AFC BOW>
HD GEN
ee
see
(6)
<FH HIGH>
pares
<LEFT HBLK>
<AFC ANGLE>
<HD W>
<H CENT>
<RIGHT HBLK>
HPROT
<HNG>
@)
(}
+
ee
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