A guide for the lamp replacement on a PRM-35 projector can be found by going to http://www.PrometheanKB.com and searching for article 11166.
Have you tried another bulb since you got the 20 power LED sequence?
Promethean Technical Support
- Release notes for ActivInspire v2.23 (released 22 February 2022)
- Release Notes for Radix 21.01.1481 (released 30 January 2022)
- Release Notes for Radix VISO v1.44 (released 10 February 2022)
- Release notes for myPromethean Portal v1.6.1 (released 26 January 2022)
- Release notes for Radix VISO v1.42 (released 2 December 2021)