Troubleshooting - Sony VPL-ES7 Service Manual

Change the
main board.
1
Check the R/G/B
LCD connectors.
Color is normal ?
Yes
Run the ADC calibration.
VPL-ES7
Section 3

Troubleshooting

Connect the power cord to the unit.
The ON/STANDBY
LED indicator
is flashing
in red ?
Yes
The ON/STANDBY
No
LED indicator
is flashing
in green ?
Yes
No
The projector
lamp illuminated ?
Yes
Any image
is projected ?
Yes
Strange color
Yes
or
One of the 3 color is
missing ?
No
3
No
Change the main board
or the optical unit.
CN701 on the
No
power board is connected
to J17 on the
main board?
Yes
Check the power board.
F601 on the
power board
blows out ?
No
The temperature fuse
works normally ?
Yes
No
Change the power board.
All white screen ?
(only ES7/EX7/EX7IN)
All black screen ?
(only EX70)
No
Change the main board.
Nothing is projected ?
Yes
Change the optical unit.
No
Connect the
harness securely.
Yes
Change F601.
No
Change the
temperature fuse.
Yes
Check the R/G/B
LCD connectors.
3-1