Sony RMT-V259 - SECTION 5 INTERFACE, IC PIN FUNCTION DESCRIPTION; 5-3. SYSTEM CONTROL - MECHANISM BLOCK INTERFACE (MA-373 BOARD IC162)

5-2
CASSETTE CASSETTE
TAPE TAPE
Signal Pin No. I/O EJECTED
LOADING UNLOADING
THREAD- UNTHREAD- STOP FF REW PB REC
ING ING
CAM
MA-373
O M H/M L/M H/M L/M M M M M M
IC162ed
MODE 1
MA-373
IH ––L L HHHHH
IC162wl
MODE 2
MA-373
IH ––LLHHHLL
IC162wk
MODE 3
MA-373
IL ––HHHLLLL
IC162wj
MODE 4
MA-373
IL ––HHLHHLL
IC162wh
REC PRF
MA-373
IL *1 *1 *1 *1 *1 *1 *1 *1 *1
IC162e;
T REEL
MA-373
I H/L H/L H/L H/L H/L H/L *2 *2 *2 *2
IC162i;
S REEL
MA-373
I H/L H/L H/L *2 *2 H/L *2 *2 *2 *2
IC162ul
END LED
MA-373
OL L L *3 *3 *3 *3 *3 *3 *3
IC162w;
T SENS
MA-373
I *3 *3 *3 *4 *4 *4 *4 *4 *4 *4
IC1627
S SENS
MA-373
I *3 *3 *3 *4 *4 *4 *4 *4 *4 *4
IC1626
5-3. SYSTEM CONTROL – MECHANISM BLOCK INTERFACE (MA-373 BOARD IC162)
∗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.