Sony DVP-NS72HP Service Manual page 65

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
Voltage [V] PIN ef (AD1)
0 - 0.20 PLAY
0.6 - 0.8
IC404: Pin No. (Signal)
PIN eg (O/C) PIN eh (AD2)
OPEN/CLOSE STOP
PROG
PIN ej (POWER)
POWER
6-4