Sony RMT-V259M, Service Manual, Page: 82 / 117

5-2
5-4.
SYSTEM CONTR
OL — SYSTEM CONTR
OL PERIPHERAL CIRCUIT INTERF
A
CE (MA-388 Boar
d IC160)
Signal
S IN O S OUT O S CLK ASURA
RESET
ASURA
CS
Pin No.
wd wf wg r; wh
I/O
I
O
I I I
I/O Le
vel
Ser
ial comm
unica
tion da
ta fr
om timer micropr
ocessor
.
V per
iod
“L
” pulse.
Ser
ial comm
unica
tion da
ta to timer micr
opr
ocessor
. V per
iod
“L
” pulse.
Ser
ial comm
unica
tion c
loc
k with timer micr
opr
ocessor
. V per
iod
“L
” pulse.
Normally “H”. “L” when service interruption is detected or restored. Chip Select signal fr
om timer micropr
ocessor
.
V per
iod
“L
” pulse.
5-5.
SYSTEM CONTR
OL — A
UDIO BLOCK INTERF
A
CE (MA-388 Boar
d IC160)
*1:
25 Hz 50 % duty pulse a
pprox. 5 msec dela
yed fr
om RF SWP
.
*1:
Uncertainty
*2:
“L” when erasing protection tab is bent.
“H” when not bent
*3:
P
ause of per
iod 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
CAM controll MODE 1 (*8) MODE 2 (*8) MODE 3 (*8) MODE 4 (*8) CIN (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 wa w; ql qk qg uj uh es ed e; ya ys
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
z
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
z
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 dir
ection:
“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 ERASE
Pin No.
tl ea 2
<z//
ef
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
z
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
z
P
A
USE
L L
*1
H
AF RF en
v
elope signal input terminal for automa
tic trac
king
.
5-3.
SYSTEM CONTR
OL — MECHANISM INTERF
A
CE (MA-388 Boar
d IC160)