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10
SWITCH DESIGNATIONS TRANSISTOR FUNCTIONS
Q
1 Bias Oscillator
Q 2 Bias Oscillator Enable
Q 3 Projector 1 Relay Drive
Q 4 Motor Restart
0 5 Motor Stop Control
Q 6 Projector 2 Relay Drive, Motor Stop
Q 7 1 kHz Oscillator Start
Q 8 150 Hz Oscillator Start
Q 9 5.OV DC Regulation
Q10 Battery Diode
Q11 Motor Supply Regulation/Shutoff
Q12 Power-up Audio Mute Circuit
Q13 Power-up Audio Mute Circuit
Q14 Aux Out Buffer
Q15 Sync Playback
Q16 Motor Restart Tone Interrupt
Q17 Sync Out Shunt
Q18 Playback ALC Defeat
SW Function
SW1 REC/PLAY, shown in Play
SW2 PA
SW3 ALC
SW4 Tape Stop/Off/Proj. 2
SW5 Sync Record/Erase
SW6 Slide (1) Advance
SW7 Tape Stop/Restart,
Slide (2) Advance
SW8 Anti-Sync Record
SW9 Main Power
Location
Main PC Board
Front Panel
Front Panel
Jack Panel
Front Panel
Front Panel
Front Panel
Transport, right rear
Transport
INTEGRATED CIRCUIT FUNCTIONS
ICl TA7224P
Preamp, ALC, Main Amp,
Meter Drive
IC2 TA75324P
A: Sync Playback/EQ
B: Sync Oscillator Out
c: Proj 1 Drive Comparator
D: Proj 2 Drive Comparator
1 kHz Filter/Oscillator
1 kHz Oscillator Start
150 Hz Oscillator Start
150 Hz Filter/Oscillator
RELAY FUNCTIONS
I
RL 1 Projector 1 Advance
RL 2 Projector 2 Advance
RL 3 Sync Record
IC3 TA75324P
A:
B:
c:
D:
I I
BLOCK DIAGRAM
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