Panasonic AG-7350 Series Service Manual page 112

SCM-6
SERVO SYSTEM CO~HROL
SERVO SCHEMATIC DIAGRAM
. . . CYLINDER SERVO SPEED LOOP
• • CYLINDER SERVO PHASE LOOP
¢=J
CAPSTAN SERVO SPEED LOOP
QD
CAPSTAN SE1
H
G
F
E
D
c
B
A
VR9
n
100KB VLOCK
NTSC (6H)
I
n.
1
VLOCK PAL
1
VR2
100KB
VR3
n
r
PG SHIFrEAl
50KB lL.:.:N.:.:TS:.::C _ _ _
...J
VR4
100KB
n
1
VLOCK NTSC
1
VR7
50KB.n~
P2201
PG SHIFT PAL
VLOCK PAL
NTSC 5V
PG SHIFTER
SP 5V
VLOCK
FWD FIX
REV FIX
9
L-----------~1~0~
REF. NO. 2200 SERIES
P2202
SLOW TR
TA FIX
' - - - TR VR
L _ _ _
SFA+
~~=
I
SLOW FREE RUN
I
r - -
EP SV
SLOW FREE RUN
1
2
3
4
5
6
7
8
9
10
L----.J¥V.I....----~~~____J r
SERVO VR C.B.A.
(VEPOOR51B)
<t
SERVO TP C. B.A. ( VEPOORBOA)
2
P2203
SA PHOTO
HSW
CAP FG
CTL
GNO
SFR
3
4
TO SYSTEM CTl)
( UNREG GNO 2
( VM PROTECT
( UNREG GNO 1
( N. SW 5.4V
------~,-~
0REG12V
( REG 12.3 V
.r- f_J
( UNREG 22V
('-~A~G~N~O
_ _ _
_J)-
)
A110
3300
015 MA151K
Q1
2SD1275
(REG I ..--.
05
MA178
022 MA178
C88
~
16V1~
C84 ,~23.5(\ !f
11.8
o.o~T '~o ~~.!130(13Vl
010
o1o
fi:e .
~x:~s:~1FF)
MA•nao 100 cas
(18VI
Tfr
Tfr
25V100 Rl1
9
10K
ssv
IC10
~
AEC \!PLAY 4.6Vp-p
016
TP2001
;_.'(
T=OjScVS~T~E~M ~C~TL~I==>j-----+-r+-----<
J 12
(_ DGND
)+
:I:
~
: :J13
I I
\ 11EOS04
TP 2 ~'.-·-f-.-l-----+---+ '1_~J-gs_o_4 +'~-~-~s_o_4
--+----1f--t--+-----+--+--------,
-
I I
L _
..J
NOT USED
( TO SYSTEM CTL )
( S SCK
( S SOA
( CAP FG
( GNO
S5V
)
R1
1000
0.2
52 51
~~~2 --1 ~-~~
Il1l_
R105
T
R106 C91
~-1~M~~--rlr~~10MK~
__
4 o.4~7------------------------,
TP2011
~
sov
IC1
MN6742VC
(SERVO
MICRO
PROCESSER)
ENVE
SELECT TEST
TP2<l11
REC~
4.6Vo>p
~.._._~~T~·~
1
~
IC16
>-----+----~~---.
L _ _ _ _
1
A107 R108
lOOK 10K
VDD(D) ROTARY
sw
( TO SYSTEM CTL )
H. SW
SLOW
a::
LM393PS • C
922
1' "
109
ss;:_
fYY\
4.6
(AMP) 16V22 10K
~1
-
R
47
1
0
2o ,. L1 •
,. 1001J C6 C109
50
VPW
H AMP
"'
4.7
49
4.7
48
SLOW
FREE
RUN
DOD/
EVEN
4.5
4.6
FF/REW
X9<!:J
ART V SLOW TR
ART V
....
OUT SLOW TA REF CY L
ET
4 5
0 0
VA CAP ET
7
2.3
C10
16Vo47
~:~)
2 2
A16 A17
2700 3300
,----
ROTARY SW
H. A. SW
ENV SELECT
ART VI H
L8 Y--2201J
'=
16Vo47
I
0.1 C7
L7
~,,2~20~"-1--+---+-~-------+H+~I---+---------___J
TOOl
L8 ~20~ ,j,.
l9 220~
~R15
.l.
22K
~~
C22
l0.56
(TO SYSTEM CTL )
( SLOW TRAC
I
I
( SLOW TRAC
I +
I
( TRAC VA I- I
( TRAG VA ( +)
P2005
L - - PG SHIFT PAL
VLOCK. PAL
R73
56K
NTSC 5V 3
PG. SHIFT
SP 5V
VLOCK
FWD FIX
REV FIX
SLOW TA
TA FIX
TA VA
SFA
+
SFA-
SLOW FREE RUN
EP 5V
(TO SYSTEM CTL.)
4
5
6
7
8
9
10
,,f-----
12
13f-----
14
15
16
17
18
19
20
l10 220!1
c1os C57 lese
1cgo
Tcgs
-rc97 c1oo c101 .J-c,o21C1031c10•Tc,os
l270P l270P l270P ro4700Pr270P l270P l270P r270P l270P .r270P r270P
1
270P
R66
2200
A1:d
A 2
A 3
06
MA151K
VR1
100KB
1
VA 2
~
100KB
N I
012
I
...M.Al~~--------.J
NOT USED
l
ssv
L4
100\1
IC2
MC14053BF
L13
1001-1
C11~~
50V1J.
R13
22K
C8~
JJoeP
C9
I
4700P '="
R14
22K
R18
3300
C
l l c 2 3
l0.1
~
l056
(Ao4)
0
(4.61
43
TR VA
10
2.0
4.5
41
45
39
VSS(D) ASl
H SW NTSC (Q
VSS AF81 ASN
,,
0.1
ASH1 AFG1
12 13
.3,,
.3
50V1
~C116
560P
s
01
MA15111
R19
220K
1.(
15
2.3 2
~
R20
3900
C15
4.
16V10
(A61 \ (A 7)
TP2005 RECIPLAY 4 4\1
l.lC95
0.01
R21
10K
( REV IRl
L-----------------------------------------------~~+----------------------------------;-------~~---r----_-_-_-_-_-_-_~----------~----~5
~~
( SR PHOTO
P2002
SA PHOTO
H SW
CAP FG
CTL
GND
SFR
P2001 (TO A/C HEAD )
CTL HEAD
CTL HEAD +
r
CTL GND
s o a
13
11
a
12
IC15
MC14013BF
l
f7
f FRJO~~~Y~S~~~~ ~CTL~I ~~§"
1
L
FE
CD ~
B 2
EXT SYNC ~ B 3
EE VIDEO 8 4
SYNC EXT (0 B 5
AEC
9
8 6 8 - LINE
5
6
IC 6
LM3~93PS
+ 3
1
- 2
IC 8
LM3~58PS
+ 5
7
- 6
IC 16
LM3~93PS
+ 5
7
- 6
7
C41
16V33
lc36,JR48
l2200P
J.
2200
IC 3
AN3726K
l~~~~IJ
"·
r----------~f
1
I
TP2007 REG
TP2012
I
QR3
MRN140~
C47
~0022
L_ _____________
4_6~~~ ~
• QR7
MRN1404
8
1
R62
3900
rl
A60
8200
r?L ~
-w
~
+32d8 :
A_S
F. F.
0 :
~f.ffi
ON .
1 ~
SHA SHA :
C39
50V1
9
VCC/2
L¥---.:1
~
PER PER
J;.
3 4
5.0 ___ 2.5 2.5
c:,',o
J
Hi-J
C40
ji
16V3~
I
C42 _% •
10V47
R58
150
7
10
0
A121
1000
,~t
2.0
R113
820
~~3
C44
50V3.3
R59
820
50V3 3
,,
0.5
12
5.0
I
~
... TP2003
I
C46
~
L
.I4700P
~
(811
~TP20<
-)
11