Technics SJ-HD505 Service Manual page 76

Pin Mark I/O
No. Division
8 LOAD1 O
9 LOAD0 O
10 NEFMON O
11 TEST01 O
12 TVSW I
13 DISC IN I
14 REFLECT I
15 LOAD I
SW0
(OPEN)
16 LOAD I
SW1
(TRG)
17 LOAD I
SW2
(PLAY/
REC)
18 LOAD I
SW3
(PLAY)
19 PROTECT I
20 MMOD —
21 RST I
22 UNIT I
TEST
23 CS2 I
24 SCTSY I
25 MDISY I
26 PANEL I
REQ
Function
Loading motor drive 1
output terminal
Loading motor drive 0
output terminal
Magnetic head current
output terminal
Test signal output terminal
(Not used, open)
Traverse innermost
detection switch signal
input terminal
Disc detection switch
signal input terminal
Reflection rate switch
signal input terminal
Loading mechanism
position det. Switch 0
signal input terminal
Loading mechanism
position det. Switch 1
signal input terminal
Loading mechanism
position det. Switch 2
signal input terminal.
Loading mechanism
position det. Switch 3
signal input terminal
Erase prevention switch
signal input terminal
Connected to GND
Reset signal input terminal
("L":Reset)
Test signal input terminal
(Open)
Test signal input terminal
(Open)
Micro computer interrupt
signal input terminal (SUBQ
/ADIP simultaneous signal)
Micro computer interrupt
signal input terminal (MD
simultaneous signal)
Panel I/F request signal
input terminal