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3. System switches
The following diagram shows the multi system, selection circuit of this chassis.
The description
on the foIlowing page, describe these switches which are controlled by IC701
(CPU) output.
y
4:
4(
.......
S1
(DI06)
NTSC
Band Limitter
;101(TDA836;
Fin
V
ir
TV
OU!
SECAM
REF.
ilF in
I
CHROMA IC
TV ID
(Tree Base
34
35
,
7
12
6
. ........
6.5MHz Filter ~%
Sll
(Q156)
6.OMHZFilter l-($%
Slo
(Q155)
5.5MHz Filter *>
S9
(Q154)
4.5MHz Filter ~%
SIF Filter
S6
(0153)
H
S2
—
5.5MHz Trap
I
1+~'")
r
4.5MHz Trap
I
I---Ly4
S3
Sound Carrier Trap
(I
D121)
I
5.5/6 .O/6.5MHz Trap
:.
PkE!&-
14'
. . . . .
. ..1
~ (Q203)
~
.................
~
. ......................................... ........................
IC701(CPU)
20
SECAM'44";
-
C ID
SECAM 4J.-..-------........-.,
15
~
TV ID
4.5 40---------------------
5.5 .39-----------
6.0 ,38---.1
---42-4.43
6.5 ~~i
~
-..43 3.56
::
;:
50160 ID
::
::
2
::
:!
::
..................................................i
:
..........................................................
.............................. .........................................
_ V-SYNC.
f%ke
(for OSD)
-22-
A7-A
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