Test Condition; Inspection Procedure - Optoma EP706 Service Manual

4-3 Test Condition

- Circumstance Brightness : Dark room less than 0.5 lux.
- Inspection Distance : 1.5m~3m for functional inspection
- Screen Size : 60 inches diagonal (wide)
- After repairing each EP1690, the unit should be burn-in (Refer to the table below).
Symptom
Normal Repair
NFF
Auto Shutdown

4-4 Inspection Procedure

No Step
Frequency
and Track-
ing

Boundary
2
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Burn-in Time
2 Hours
4 Hours
6 Hours
Specification
Eliminate visual - Test Signal :
wavy noise by 1024x768@60Hz
Rsync, Frequen- - Test Pattern : PANA-
cy or Tracking ICON
selection. - check and see if image
sharpness and focus
are well-performed.
- If not, re-adjust by the
following steps:
(1) Select "Frequency"
(2) Then, select
Horz. And Vert. - Test Signal :
position of 1024x768@60Hz
video should be - Test Pattern : General
adjustable to - Adjust Resync or
be the screen Frequency / Tracking /
frame. H. Position / V. Position
to the inner of the screen.
Procedure
function to adjust
the total pixel number
of pixel clock in one
line period.
"Tracking" function
and use right or left
arrow key to adjust
the vgalue to
minimize video flicker.
4-2
Photo
EP706/709