4. Troubleshooting
Code 5851: “imb - service door tamper event” (Error)
Situation Solution
A board in the Card Cage has been
removed.
Clear the security warning. See "Authorization to clear security warning on the projector",
page 245.
Brief procedure to clear the se curity wa rning:
1. Ensure the cover plate of the Light Processor compartment is properly installed.
2. Ensure that all boards in the Card Cage are properly installed.
3. Start up the projector.
4. Initiate authorization by holding the security key in the security socket (im age 4-37).
5. Enter th e pin code within 5 seco nds.
The cover plate of the Light
Processor com partment has
been removed. Security s witches
are ac tivated (reference 1 & 2
image 4-38).
Clear the security warning. See "Authorization to clear security warning on the projector",
page 245.
Brief procedure to clear the se curity wa rning:
1. Ensure the cover plate of the Light Processor compartment is properly installed.
2. Ensure that all boards in the Card Cage are properly installed.
3. Start up the projector.
4. Initiate authorization by holding the security key in the security socket (im age 4-37).
5. Enter th e pin code within 5 seco nds.
Defect security switches (reference
1 & 2 image 4-38).
If all compartments and devices are installed and security error w ill not authorize,
replace D C I security switches.
Malfunction Signal B ackplane If switch replacement is not the solution, then replace Signal Backplane. See
"Replacement of the signal ba ck plane", p age 231.
Code 5853: “imb - logical marriage tamper event” (Error)
Situation Solution
The ICP and Mediablock are not a
couple.
This means one of both has been r eplaced. You need to marry both. Start the clear
security warning procedure. See "Authorization to clear s ecurity warning on the
projector", page 245. Together with this error y ou will always have an error “imb -
physical marriage tamper event”.
Code 5854: “imb - physical marriage tamper event” (Error)
Situation Solution
The ICP and/or lMediablock hav e
been remov ed and inserted again.
You ne ed to remarry both. Start the clear security warning procedure. S ee "A uthorization
to clear security warning on the p rojector", page 245.
Code 5960: “light pipe - temperature too high” (Error)
This error code is probably preceded by the warning code 5961: “light pipe - temperature high”. The same troubleshooting table
can be applied.
Code 5961: “light pipe - temperature high” (Warning)
Situation Solution
Damaged wire unit o f the
temperature sensor which m easures
the temper ature of the cooling block
of the light pipe entrance.
1. Repair the wire unit.
2. If not repairable, r eplace the whole w ire unit and temperature sensor.
Defect temperature sensor on
the cooling block of the light pipe
entrance.
Replace the temperature s ensor.
Misalignment of the lamp inside the
lamp house.
1. Readjust the Z-alignment of the lamp. S ee "Realignm ent of the lamp in its reflector",
page 111.
2. Replace the lamp house with a new lamp house. See "Removal of the lamp house",
page 96.
Misalignment of the cold mirror. Readjust the cold mirror. See "Cold m irror assembly", page 123.
R5905043 DP2K-12C/11CX 19/02/2018 69
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