EBN Technology TM-70, Руководство по обслуживанию

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Chapter 5
15
5.
5 Troubleshooting
Symptom Check Points Detail Steps
NO POWER 1. Power cord
2. Power Supply
3. Power button
cable
4. A/D board 1. Check Power Cord is well plugged or not
2. If yes to item 1, check power supply LED is on
with green light.
3. If yes to item2, check power cord to M/B well
connected or not.
4. If yes to item 3, replace with another power
cord for testing
5. If fail, open rear cover, remove inverter cable
on A/D board , check power button cable to M/B
well connected.
6. If yes to item 5, unplug power cord; reconnect
power cold after 1 minute. Check if LED on front
cover (Upper Left) is on.
7. If LED is on, replace with another power button
cable for testing.
8. If LED is not on, replace with another A/D
board for testing
9. If fail, System RMA to your dealer
LCD Blank 1. Inverter Cable
2. Inverter to LCD
cable
3. A/D board to LCD
cable
4. Inverter Board
5. A/D Board 1. Shut Down Power,
2. Open rear cover, check if inverter cable well
connected between A/D board and inverter
board
3. If yes, replace with another inverter cable for
testing
4. If fail, check if LCD cable well connected with
inverter board.
5. If yes, replace with another LCD cable for
testing.
6. If fail, check if LCD signal cable well connected
on A/D board.
7. If yes, replace with another LCD signal cable
for testing
8. If fail, replace with another inverter board for
testing
9. If fail, replace with another A/D board for
testing
10. If fail, System RMA to your dealer