Electrical Adjustments; Preparation; Required Equipment; Optical Unit Adjustment - Sony VPL-CS5 Service Manual

2-1. Preparation

2-1-1. Required Equipment

. Oscilloscope
Sony Tektronix 2465 or equivalent (350 MHz band
width or more)
. NTSC, PAL, SECAM component signal generator
Sony Tektronix TG2000 + AVG1 (option module) +
AWVG1 (option module) or equivalent
. VG (programmable video signal generator)
VG814 or equivalent
. Digital voltmeter
Advantest TR6845 or equivalent
. Illuminance meter
n
Allow the warm-up time of 5 minutes after the power is on
before starting the following adjustments.

2-1-2. Optical Unit Adjustment

Rotate the cooling fan and turn on the lamps.
(1) Mirror adjustment
Adjust the screen size to 80 inch at the WIDE end.
1. Select the green only mode.
2. Check to see if there is any black zone at the top,
bottom, left or right of screen. If there is any black
zone on screen, loosen the adjustment plate fixing
screw and adjust the G dichroic mirror for minimum
black zone.
3. Tighten the adjustment plate fixing screw.
4. Select the cyan only mode.
5. Check to see if there is any black zone at the top,
bottom, left or right of screen. If there is any black
zone on screen, loosen the adjustment plate fixing
screw and adjust the RB mirror adjustment plate for
minimum black zone and the blue color is distinguish-
ing.
6. Tighten the adjustment plate fixing screw.
7. Select the all white mode.
8. Check to see if there is any black zone at the top,
bottom, left or right of screen. If there is any black
zone on screen, loosen the adjustment plate fixing
screw and adjust the RB mirror adjustment plate for
minimum black zone and the red color is distinguish-
ing.
VPL-CS5/CX5
Section 2

Electrical Adjustments

9. Tighten the adjustment plate fixing screw.
10. Tighten the six adjustment plate fixing screws manual-
ly with a torque driver.
Tightening torque: 0.19 ± 0.03 Nm
11. Check to see that the illumination range error is within
the tolerable limit.
When installing the optical unit in this model, alignment of
the gear tooth position is required. Perform the following
steps.
Lens gear
Gear alignment portion
Procedure
1. Rotate the lens focus and zoom in the fully clockwise
positions. Lock the dial in the direction shown in Fig.
1.
Lens
Dial
Optical unit
Lens gear
Fig. 1
2-1