SERVICE MANUAL Diagnostics
23JUL01
SM5766-1
Page
90 of 96
ZERO POSITION SWITCH (Model
2000 only) does not operate
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.
After the FOCUS MOTOR energizes
and moves, the FOCUS MOTOR
oscillates.
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.
Malfunction Solution
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