Sony TC-765 - IC701 Function and Mode Control

TC-765 |
1. Action of 1€701 (CX738) (Refer to Fig. 1)
Pushing any of the function buttons grounds the
actuating circuit of IC701 (terminals @) to G}) and
the output from terminals@)to@controls each mode.
(Output occurs when terminals @)to (} are at less
than 4.5V.)
Fig. 1 indicates the output in each mode by
a logic value.
fast
record rewind stop forward forward pause
e << = > p> il
FLIP-FLOP
1C701 _CX-738
0: OV output ’
1: 12V output
HOLD: Previous mode condition does not change.
*1, pP represents DELAY Forward.
*2. If PAUSE is 0 (previous condition), Brake becomes 1.
If PAUSE is 1 (previous condition), Brake becomes 0.
*3. In Forward mode, if PAUSE button is pressed, the
solenoid is de-energized and the brake is operated.