Sony DVP-NS50P Service Manual page 23

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
0.60 - 0.82 PAUSE
1.16 - 1.47 PREVIOUS
1.80 - 2.12 NEXT
2.48 - 2.70 -
2-3-1. FLD and LED All ON
2-3-1-1. Transition Keys in Self Check Mode
• key and key on the main unit
Z x
• key on the remote commander
T
2-3-1-2. Operation and display
In this mode, all LEDs and all segments of FLD turn ON.
• Example of FLD all ON
2-3-2. Main Unit Key Name Display and Key Code Display
2-3-2-1. Transition Keys in Self Check Mode
• Keys on the main unit except keys transited in Self Check Mode
2-3-2-2. Operation and Display
When a key on the main unit is pressed in the Self Check mode, the name of that key is displayed on the FLD. Aslo, the key name display
and the key code display can be switched with the [DISPLAY] key on the remote commander, "NOTHING" is displayed when nothing is
entered. Also, DVD, V, CD segments turn on when a communication error occurred.
• FLD display (at input of
H
IC404: Pin No. (Signal)
PIN eg (O/C) PIN eh (STOP)
OPEN/CLOSE STOP
- PROGRESSIVE
- -
- -
- -
key on the main unit)
PIN ej
POWER
-
-
-
-
6-5
DVP-NS50P/NS41P/NS52P