Troubleshooting; Electric Troubleshooting - Sony VPL-ES4 Service Manual

3-1. Electric Troubleshooting

Connect the Power
System Standby?
Yes
Power projector
Lamp ON ?
Yes
System shut-down
And cooling
No
No Picture ?
No
Picture quality
No good ?
No
1
VPL-ES4/EX4
Section 3

Troubleshooting

No
1. Check the LED Message and find error.
2. Check lamp door, dust door.
3. Check the power board out voltage 5V.
4. Change main board.
No
1. check the Ballast power and control
signal wire.
2. Check lamp door status.
3. Check lamp status.
Yes
1. Check the LED message and find error.
2. Check the Fan status or Thermal sensor
status.
3. Check the lamp door or dust door.
Yes
1. The picture is full-white pattern; please
check the LCD panel connector.
2. The picture is full-black pattern; please
check the LCD driver on the main board.
3. Check the system status: Is system in
burn-in mode?
Yes
1. The picture a little green, blue, red,
please check the LCD panel connector.
2. The picture has dust, please check the
lens.
3. The picture flicker, please alignment
again.
3-1