Philips DVDR1000/001, Service Manual

Page: 256 / 317

Circuit-, IC Descriptions and List of Abbreviations
GB 256 DVDR1000 /0x1 /691 9.
PAL/NTSC/SECAM Video Decoder with Adaptive Comb Filter,
Component Video Input, VBI-Data Slicer and High Performance Scaler
SAA7118
6 SYSTEM BLOCK DIAGRAM
B
ound
ar
y
S
c
an
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XT
AL
Vi
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ion
Lum
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C
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P
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P
roc
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s
s
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C
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P
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F
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A
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1
A
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A
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A
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AD
-Po
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II
C
R
egi
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ter
M
A
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VBI
D
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S
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F
IF
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Vide o FIFO
F IR -P re filte r
P re sca le r
B C S -S caler
H-
P
o
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O u tp ut F orm a tter I-P ort
2n
d
T
as
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I
IC
R
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ter
M
ap
S
c
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L ine F IFO B u ffer
Ve rtical S caling
V
ideo
/T
ex
t A
rb
it
er
A nalog Inpu t C on trol
D eco der O u tp ut C o ntrol
X-
Po
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S
c
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E
v
ent
C
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1s
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IC
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ter
M
ap
S
c
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Po
w
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r Su
p
p
ly
Cl
o
c
k
H orizo ntal Fine -
(P ha se-) S calin g
FSW
AI
1
1
AI
1
2
AI
1
3
AI
1
4
AI
2
1
AI
2
2
AI
2
3
AI
2
4
AI
3
1
AI
3
2
AI
3
3
AI
3
4
AI
4
1
AI
4
2
AI
4
3
AI
4
4
P
o
we
r-
O
n
Co
n
tr
o
l
Te
x
t
IPD
(7:
0)
IC
L
K
ID
Q
IT
R
D
Y
IT
R
I
IGPH IGPV IGP0 IGP1
S D A
S C L
CO
M
B
F
ilt
e
r
AI
1
D
AI
2
D
AI
3
D
AI
4
D
AG
ND
AGNDA
V S S A
V D D A
V S S I
V S S E
V D D I
V D D E
L LC
L LC 2
X TA L
X TA L I
X TO U T
X P D (7 :0 )
H P D (7:0)
A D P (8:0)
T R S TN
T C K
T M S
T D I
T D O
A M C LK
A LR C LK
A S C LK
A M X C LK
X C LK
X R H
X R V
X T R I
Cl
o
c
k
R T S 0
R T S 1
X D Q
X R D Y
IN T_ A
Bl
o
c
k
d
ia
g
ra
m
SAA7
1
1
8
GP
O
C E
R E S O N
A
DC1
A
DC2
A
DC3
A
DC4
+
+
+
+
C
ont
ro
l
V X D D
V X S S
C LK E X T
AO
U
T
TE S T
R T C O
Cb
Cr
Cb
Cr
YC
b
C
r
Y Cb Cr Y Cb Cr S
Y C b C r
Y C bC rS
RA
W
RA
W
C
Y
S
R
G B
S
S
S
Fig.1 Blockdiagram SAA7118