Akai X-360D

VII. TRANSPORT MECHANISM
Explanation of Relays and Solenoids included in X-360.
REC 2 : Recording Relay 2
Actuated by REC Relay 1.
Switches Recording Head to ON/OFF.
RT : Reverse Timing Relay
Charges at 220 uw when changing from
Reverse to Normal operation.
REV H : Head Reverse Solenoid
Depresses Playback Head to Reverse
position in the reverse mode.
REV 1 : Reverse Relay 1
Reverses motor rotation. Locks Reverse
circuit. Controls PLY Relay.
REV 2 : Reverse Relay 2
Switches the “Reel: Motor Tension
during Reverse operation.
REV 3 : Reverse Relay 3
Switches the Playback Head connection
(L.ch. — R.ch.) during Reverse operation.
PT : Pinch Roller Timing
Stops tape in 4 seconds while changing
Normal and Reverse.
PLY : Play Relay
Locks BRK., QT., PR. control & PLY
circuit.
PR : Pinch Roller Solenoid
REC 1 : Recording Relay 1
Locks REC Relay 2 control and
Recording circuit.
BIAS : Bias Head Control Solenoid
QT : Quick Tension
Used under all operations and at starting
time, operates to provide Reel. Motor a
high force.
BRK > Krake Solenoid
MAG : Magnetic Brake Relay
Constantly ON during normal operation.
In Off position Magnetic. Brake circuit
operates.
TIM : Time Constant Relay
ON during Fast Forward and Rewind
operations. Controls Magnetic Brake
operation.
RWD : Rewind Relay
FF : Fast Forward
DS : Direction Switch Relay
Operates only during Rewind mode.
Controls the direction of the Magnetic
Brake operation.
SENS : Sensing Relay
Operated by Sensing Tape or Reverse
Dial. Also sets Reverse circuit to ON.