Sony RMT-D175A - Auto Self Check and Key Input Tests; Auto Self Check Display Sequence; Self Check Functionality Tests

6-4
DVP-NS72HP/NS77H/NS77HP/NS78H/NS78HP
2-2. Operation of Auto Self Check
When the Self Check mode becomes active at the AC Power ON or by key input, the test display of the following steps (1) to (4) is repeated.
(1) FLD and all ON (for 5 seconds)
(2) MODEL display (for 2 seconds)
3) Version display (for 2 seconds)
(4) ROM creation date display (for 2 seconds)
(2-3. Each Self Check Function
Each Self Check function tests the FLD display, LED display, and key input.
Input IC404: Pin No. (Signal)
Voltage [V] PIN ef (AD1) PIN eg (O/C) PIN eh (AD2) PIN ej (POWER)
0 - 0.20 PLAY OPEN/CLOSE STOP POWER
0.6 - 0.8 PROG