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SERVICE MANUAL
23JUL01
SM5766-1
Page
ZERO POSITION SWITCH (Model
90 of 96
2000 only) does not operate
After the FOCUS MOTOR energizes
and moves, the FOCUS MOTOR
oscillates.
Malfunction
Solution
1.
De-energize the projector.
2.
Check for continuity between PIN
B5 and B6 on the 12-PIN
DISSOLVE PLUG.
3.
Install a SLIDE TRAY.
4.
Rotate the SLIDE TRAY to
engage the ZERO POSITION
SWITCH, the DVM should
measure 0 W.
5.
If the W measurement is not
correct, see the adjustment for the
ZERO POSITION SWITCH. Install
a new ZERO POSITION SWITCH
if necessary.
1.
Remove R3 and install a new 68K
W 1/4 W RESISTOR (part
220040).
2.
If there is still a malfunction,
install a new PHOTOCELL.
Diagnostics
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