Sony SLV-E580EE Service Manual page 47

QQ
5-3. SYSTEM CONTROL – MECHANISM BLOCK INTERFACE (MA-315 BOARD IC161)
3 7 6 3 1 5 1 5 0
Signal Pin No. I/O
MA-315
CAM O
IC161%•
MA-315
MODE 1 I
IC161@ª
MA-315
MODE 2 I
IC161@•
MA-315
MODE 3 I
IC161@¶
MA-315
MODE 4 I
IC161@§
MA-315
REC PRF I
IC161#º
MA-315
T REEL I
IC161*º
MA-315
S REEL I
IC161&ª
MA-315
END LED O
IC161@º
MA-315
T SENS I
IC1617
T E
L 1 3 9 4 2 2 9 6 5 1 3
MA-315
S SENS I
IC1616
∗1. "L" when erasing protection tab is bent. "H" when not bent.
∗2. Pulse of period in proportion to reel rotating speed.
∗3. Approx. 2 msec period "H" pulse.
∗4. Normally "L" .2 msec period "H" pulse when tape top or tape end is detected.
∗5. Hi-Z
www
.
http://www.xiaoyu163.com
TAPE
CASSETTE CASSETTE
EJECTED THREAD-
LOADING UNLOADING
ING
M H/M L/M H/M
H – – L
H – – L
L – – H
L – – H
L *1 *1 *1
H/L H/L H/L H/L
H/L H/L H/L *2
L
*3 *3 *3
*3 *3 *3 *4
*3 *3 *3 *4
x a o u 1 6 3
y
i
http://www.xiaoyu163.com
8 9
TAPE
UNTHREAD- STOP FF REW
ING
L/M M M M
L H H H
L H H H
H H L L
H L H H
*1 *1 *1 *1
H/L H/L
*2 *2
*2 H/L *2 *2
*3 *3 *3 *3
*4 *4 *4 *4
Q Q
3 7 6 3 1 5 1
*4 *4 *4 *4
c o
.
2 4 2
9 8
PB REC
M M
H H
L L
L L
L L
*1 *1
*2 *2
*2 *2
*3 *3
*4 *4
5 0 8 9 2 4 9 8
*4 *4
m
9 9
2 9 9