Sony RMT-V267B, Service Manual

Page: 62 / 91

5-2
5-4.
SYSTEM CONTR
OL — SYSTEM CONTR
OL PERIPHERAL CIRCUIT INTERF
A
CE (MA-360 BO
ARD IC161)
Signal
ASURA
RESET
ASURA
CS
S IN 0 S OUT 0 S CLK
Pin No.
$º @§ @£ @¢ @∞
I/O
I I I
O
I
I/O Le
vel
Normally “H”, “L” when service interruption is detected or restored. Chip select signal fr
om timer micr
opr
ocessor
.
V per
iod
“L
”
pulse
.
Serial comm
unica
tion da
ta from timer micropr
ocessor
.
V per
iod
“ L
”
pulse.
Serial comm
unica
tion da
ta to timer micr
opr
ocessor
.
V per
iod
“L” pulse.
Serial comm
unica
tion c
lock from timer micropr
ocessor
.
V per
iod
“L” pulse.
5-5.
SYSTEM CONTR
OL — A
UDIO BLOCK INTERF
A
CE (MA-360 BO
ARD IC161)
*1.
30 Hz 50 % duty pulse a
pprox. 5 msec dela
yed fr
om RF SW P
.
*1.
Uncer
tainl
y.
*2.
“L” when erasing protection tab is bent. “H” when not bent.
*3.
P
ause of period in pr
oportion to reel r
ota
ting speed.
*4.
Approx. 2 msec period “H” pulse.
*5.
Pulse at tape running.
*6.
Normally “L”. 2 msec period “H” pulse when tape top or tape end is detected.
Signal
CAM2 MODE 1 (*8) MODE 2 (*8) MODE 3 (*8) MODE 4 (*8) (IN REC PRF) T REEL FG S REEL FG T/E LED CAP ST
OP
CAP R
V
S
T SENS S SENS
Pin No.
9 @¡ @º !ª !• !∞ &¶ &§ #™ #£ #º ^¡ ^™
I/O
HI-Z
I I I I I I I
O (O.D) O (O.D)
O
I I
EJECTED
L H H L L H
H/L H/L
*4
L H
*4 *4
CASSETTE
LO
ADING
H L L L H
*2
H/L H/L
*4
L
*4 *4
CASSETTE UNLO
ADING
L L L L H
*2
H/L H/L
*4
L
*4 *4
T
APE
THREADING
H
*1 *1 *1 *1 *2
H/L
*3 *4
H L
*6 *6
T
APE
UNTHREADING
L
*1 *1 *1 *1 *2
H/L
*3 *4
H H
*6 *6
ST
OP
*7
H H H L
*2
H/L H/L
*4
L
H/L
*6 *6
FF
*7
H H L H
*2 *3 *3 *4
H L
*6 *6
REW
*7
H H L H
*2 *3 *3 *4
H H
*6 *6
PB
*7
H L L H
*2 *3 *3 *4
H L
*6 *6
PB P
A
USE
*7
H L L L
*2
H/L H/L
*4
L L
*6 *6
SLO
W
*7
H L L L
*2 *3 *3 *4 *5
L/*5
*6 *6
x 2
*7
H L L L
*2 *3 *3 *4
H L
*6 *6
CUE
*7
H L L L
*2 *3 *3 *4
H L
*6 *6
REVIEW
*7
L L H L
*2 *3 *3 *4
H H
*6 *6
REC
*7
H L L L
*2 *3 *3 *4
H L
*6 *6
REC
P
A
USE
*7
H L L L
*2
H/L H/L
*4
L L
*6 *6
*7.
When tr
ansition to UNLO
ADING dir
ection :
“L
”.
When tr
ansition to LO
ADING direction :
“H”.
When CAM MO
T
OR is stopped :
Hi-Z.
*8.
When R
VS slo
w : Mode 1=”L”
When R
VS slo
w : Mode 2=”L”
When R
VS slo
w : Mode 3=”H”
When R
VS slo
w : Mode 4=”L”
Signal
AF
ENV
A
MUTE
AF REC P AF
SWP
FULL ERS
Pin No.
%ª
#¡
2 `⁄‚‚
#¢
I/O
I
O (O.D)
O O
O (O.D)
ST
OP/FF/
REW
L L
*1
H
T
APE
LO
ADING
L L
*1
H
T
APE
UNLO
ADING
L L
*1
H
PB *1
L
*1
H
PB P
A
USE
H L
*1
H
SLO
W
H
L
*1 H
x 2
H L
*1
H
CUE
H L
*1
H
REVIEW
H L
*1
H
REC
L H
*1
L
REC P
A
USE
L L
*1
H
AF RF en
v
elope signal input ter
minal for automa
tic trac
king
.
5-3.
SYSTEM CONTR
OL — MECHANISM INTERF
A
CE (MA-360 BO
ARD IC161)