LG 32LB3RS, Руководство пользователя

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1. Power Board
- The whole flowchart which it follows in voltage output stat
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TROUBLESHOOTING
2. Check the interface signal condition. 1. Check the Power off condition.
No
Yes
No
Yes Yes
4. Check the 5V Monitor signal circuit. 3. Check the St_by 5V signal circuit.
Yes Yes
5. Check the VSC RL_ON signal.
Yes
Doesn’t
the screen whole
come out?
Is it with
power off condition
identical?
Is the interface
signal operated?
No
No
No
Yes No
No
No
Yes
Yes
Doesn’t the
low pressure output
come out?
Doesn’t the
St-by 5V signal
come out?
Doesn’t the
5V monitor signal
come out?
Doesn’t the
VSC signal RL_ON
come out?
6. Check the VSC low pressure output.
Yes
Doesn’t the
VSC Low pressure Output
come out?
8. Check the Vs, Va voltage output circuit.
Yes
No
Doesn’t the
Va, Va voltage output
come out?
7. Check the VSC Vs_ON signal.
Manufacture enterprise
meaning of a passage
No
9. Check the power board
output high tension circuit.
No
10. Check the Z B/D
Module output circuit.
No
11. Check the Y B/D
Module output circuit.
Yes
Doesn’t the
VSC signal Vs-ON
come out?
Doesn’t the
high tension output
come out?
High tension
output voltage drop
it occurs?
When
remove the Y,Z B/D
Module input connector, power
Board high tension output
voltage drop it
occurs?
No
When
remove the Y B/D
Module input connector,
output voltage drop
it occurs?
No
When
remove the Z B/D
Module input connector,
output voltage drop
it occurs?
Start check