Epson RS-353, Service Manual

Page: 91 / 130

Focus adjustment
Perform the positional adjustment first on the light bulb G and perform positional
adjustments the other light bulbs with respect to the light bulb G. You make just as
focusing individually and not mean to obtain the alignment. Consequently, this
adjustment alone cannot provide perfect display quality. When making a focus
adjustment, take care not to change the position of the LCP,
screen, (occasionally
check the optical axis for misalignment using the reflected ray from the mirror).
Adjustment tool is prepared by EPSON witch is useful for focus and alignment
adjustment. If you don’t have this tool, ‘you can take the. focus and alignment
adjustment with driver board. When the driver board is mounted, we can’t secure the
enough space for adjustment and produce hard operations.
When you have this tool, remove the driver board plug the three convectors by refering
figure
shown below.
Figure 5-6
diagram for adjustment tool>
Power ON/OFF
M Power
GND
Fan, Audi
Analog
5V
Figure 5-7