Sony DVP-K370 Service Manual page 83

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3 7 63 1515 0
2-3. Each Self Check Function
Each Self Check function tests the FLD display, LED display, and
key input.
Input
Voltage [V]
Pin ej
0 – 0.2
0.6 – 0.82
1.16 – 1.47
1.8 – 2.12
2.48 – 2.7
3.3
2-3-1. FLD and LED All ON
2-3-1-1. Transition Keys in Self Check Mode
[STOP] [OPEN/CLOSE]
• key and
[LEFT]
• key on the main unit and the remote commander
2-3-1-2. Operation and Display
In this mode, all LEDs except STANDBY LED and all segments
of FLD turn ON.
Example of FLD all ON
TE
L 13942296513
2-3-2. Main Unit Key Name Display and Key Code Display
2-3-2-1. Transition Keys in Self Check Mode
• Keys on main unit except keys transited in self check
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. Also, the key name
display and the key code display can be switched with the
PLAY]
key on the remote commander. "NOTHING" is displayed
when nothing is entered. Also, VIDEO CD, DVD, and CD seg-
ments turn on when a communication error occurred.
FLD display (at input of
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(POWER) (O/C)
Pin ef
POWER OPEN/CLOSE
TVS PREVIOUS
PREQ PAUSE
– NEXT
– –
– –
key on the main unit
[PLAY]
key on the main unit)
x ao
y
i
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8
IC404: Pin No. (Signal)
(PLAY) (DISPLAY)
Pin eg Pin eh
PLAY STOP
– DISPLAY
– MENU
– RETURN
– TOP MENU
– –
Q Q
3 6 7 1 3
[DIS-
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6-13
2 9 9 4 2 8
(CURSOR)
Pin ed
ENTER
DOWN
LEFT
UP
RIGHT
–
1 5 0 5 8 2 9 9 4
m
co
9 9
2 8 9 9