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1801 BASIC TIMING CHART
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1C704 PIN® CASSETTE LODE SW ON AND MS. SW, OFF.
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X701 BASE @© MEANS Q8V OR BELOW
@ MEANS HI-IMPEDANCE
1C702-F PIN@® 3. Vec OF 1701 702 703 803 804 805 806 ARE PINIG.
AND GND ARE PIN7
SCAN SIGNAL Se eee 4. >, , B , MEANS OPEN COLLECTOR.
RESET
SIG.ON
Red line show +B circuits.
No. 1443 _30-
7