Sony SLV-7700KME, Service Manual

Page: 81 / 135

6-1
SLV-7700KME/7700KML
SECTION 6
INTERFACE AND IC PIN FUNCTION
Signal
Pin No.
I/O
PB
SLOW
x 2
CUE
REVIEW
REC
VPB
IC201
@£
OHH
H
L
L
L
L
L
L
HH
RF SWP
IC201
1
O
*
1*
1
*
1
*
1
*
1
*
1
*
1*
1*
1*
1*
1
QVD
IC201
2
O
L
L
L
*2
*3
*3
*3
*3
*3
L
L
SP
IC201
(™
O
*
4*
4
*
4
*
5
*
5
*
5
*
5*
5*
5*
4*
4
SP/EP/LP
IC201
!ª
O
*
4*
4
*
4
*
5
*
5
*
5
*
5*
5*
5*
4*
4
V SYNC
IC201
^§
I
*
6*
6
*
6
*
6
*
6
*
6
*
6*
6*
6*
6*
6
CTL REC
IC201
(¢
OL
L
L
L
L
L
L
L
L
HL
JOG
IC201
5
OL
L
L
L
H
H
H
H
HL
L
ORC SETTEI
IC201
&∞
O
L
L
L
L
L
L
L
L
L
*7
*7
NTSC
IC201
@¢
O
*
8*
8
*
8
*
9
*
9
*
9
*
9*
9*
9*
8*
8
T
APE
THREAD-
ING
T
APE
UNTHREAD-
ING
PB •
P
AUSE
ST
OP
FF/
REW
REC •
P
AUSE
6-1. SYSTEM CONTROL
– VIDEO BLOCK INTERF
ACE (MA-303 BOARD IC201)
*1. Sync
hr
oniz
ed with dr
um r
ota
tion. 25 Hz (P
AL)/30 Hz (NTSC) 50% duty pulse.
*6. Composite Sync signal (positi
ve).
*2. Normally "L". "H" when CTL signal is not generated.
*7. "H" while
APC is set.
*3.
V per
iod "H" pulse.
*8. Selected by REC mode. "L" in NTSC mode.
*4. Selected by REC mode. SP mode: "L"
*9. Selected by the tape recording mode. "L" to the NTSC mode.
*5. Selected according to the tape recording mode.
SP
LP
EP
SP
(™
LM
H
SP/EP/LP
!ª
L
Hi-Z
H
Mode
Signal