Read Sony DVP-NW50 (serv.man2) Service Manual online
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6-2. LEDs on MAIN board
(2) Communication LED
D21 (Blue: TEST)
- LINK activity
ON
OFF
OFF
FLASHING
D20 (Red: SPD100)
- SPEED
ON
OFF
ON
ON
D18 (Red: Duplex)
- Full duplex
ON
OFF
ON
ON
D13 (Red: Collision)
- Collision
ON
OFF
OFF
OFF
Turn on the set, Booting, Operating,
D21 (Blue: TEST)
D20 (Red: SPD100)
D18 (Red: Duplex)
D13 (Red: Collision)
D20 (Red: SPD100)
D18 (Red: Duplex)
D13 (Red: Collision)
Four LEDs are connected with PHYSICAL LAYER TRANCEIVER (U26) to
confirm the network communication.
confirm the network communication.
When the set turns on and SYSTEM CONTROLLER boots up, PHYSICAL
LAYER TRANCEIVER starts booting.
LAYER TRANCEIVER starts booting.
If network is connected correctly, the following operation starts.
Blue LED of TEST starts flash and two Red LEDs of SPD100 and Duplex light
up for a while. Only Red LED of Collision doesn’t light up.
up for a while. Only Red LED of Collision doesn’t light up.
Next, all LEDs put out for a while.
Next, Blue LED of TEST starts flash and two Red LEDs of SPD100 and Duplex
light up again.
light up again.
If network cable is not connected, all LED don’t light up.
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