Sony DVP-NC675P Service Manual page 73

2-3. Each Self Check Function
Each Self Check function tests the FLD 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 DISC 5
Vref = 3.3V
2-3-1. FLD All ON
2-3-1-1. Transition Keys in Self Check Mode
• Z key and x key on the main unit
• T key on the remote commander
2-3-1-2. Operation and display
In this mode, all segments of FLD turn ON.
• Example of FLD all ON
DVD
VCD
MP3
ALL DISCS
2-3-2. Main Unit 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,
key code is displayed on the FLD.
• Key code display
(at input of H key, key code: 0Ah)
DVD
VCD
MP3
ALL DISCS
• At input of faulty voltage
DVD
VCD
MP3
ALL DISCS
IC404: Pin No. (Signal)
PIN eg (AD2) PIN eh (AD3) PIN ej (AD4)
OPEN/CLOSE STOP
EXCHANGE DISC 4
DISC SKIP DISC 3
- DISC 2
- DISC 1
POWER
-
-
-
-
6-6