Sony SLV-ED8ME - Page 59

5-2
CASSETTE CASSETTE
TAPE TAPE
PB • REC •
Signal Pin No. I/O EJECTED
LOADING UNLOADING
THREAD- UNTHREAD- STOP FF REW PB
PAUSE
SLOW × 2 CUE REVIEW REC
PAUSE
ING ING
CAM
MA-325
O Hi-Z H L H L *7 *7 *7 *7 *7 *7 *7 *7 *7 *7 *7
IC1619
MODE 1
MA-325
IH L L *1 *1 HHHHHHHH L HH
IC161@™
MODE 2
MA-325
IH L L *1 *1 HHHLLLLL L LL
IC161@¡
MODE 3
MA-325
IL L L *1 *1 HLLLLLLL H LL
IC161@º
MODE 4
MA-325
IL H H *1 *1 LHHLLLLL L LL
IC161!ª
C IN REC PRF
MA-325
IH *2 *2 *2 *2 *2*2*2*2*2*2*2*2*2*2*2
IC161!∞
T REEL FG
MA-325
I H/L H/L H/L H/L H/L H/L *3 *3 *3 H/L *3 *3 *3 *3 *3 H/L
IC161^¢
S REEL FG
MA-325
I H/L H/L H/L *3 *3 H/L *3 *3 *3 H/L *3 *3 *3 *3 *3 H/L
IC161^£
T/S LED
MA-325 O
*4 *4 *4 *4 *4 *4 *4 *4 *4 *4 *4 *4 *4 *4 *4 *4
IC161#™ (O.D)
CAP STOP
MA-325 O
L L L H H LHHHL*5HHHHL
IC161#∞ (O.D)
CAP RVS
MA-325
O L H L H/L H L H H H/*5H H L H H
IC161&™
T SENS
MA-325
I *4 *4 *4 *6 *6 *6 *6 *6 *6 *6 *6 *6 *6 *6 *6 *6
IC161^¡
S SENS
MA-325
I *4 *4 *4 *6 *6 *6 *6 *6 *6 *6 *6 *6 *6 *6 *6 *6
IC161^™
5-3. SYSTEM CONTROL – MECHANISM BLOCK INTERFACE (MA-325 BOARD IC161)
∗1. Uncertainly.
∗2. “L” when erasing protection tab is bent, “H” when not bent.
∗3. Pulse of period in proportion to reel rotating 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.
∗7. When transition to UNLOADING direction: L.
When transition to LOADING direction: H.
When CAM motor is stopped: Hi-Z.
∗8. When RVS slow: mode 1; L.
When RVS slow: mode 2; L.
When RVS slow: mode 3; H.
When RVS slow: mode 4; L.