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DP-1001
CIRCUIT DESCRIPTION
1. Test mode
1-1. Setting the test mode
This microprocessor built in this unit can be put to
Test Mode by just short-circuiting the test pins (X32-).
The Test Mode can be also initiated with short-circuit-
ing the test pins when tray ts OPEN. If unit is in test
mode, TRACK No. displays "05".
POWER ON
YES
Are test
pins shorted ?
Track No. "01"
is displayed.
Tray is closed
NO
Test mode process is
Press PLAY key
performed
Track No.7, 8 and 6
Press STOP key
are programmed
automatically
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