Forum Replies Created
January 24, 2020 at 9:25 pm #18903
Finally got bulb verified as being good so went deeper into fault. Stripped projector down to expose the thermal switch which seemed to click into position when pressed with a screwdriver. Next was the tangential fan which cools the bulb it was completly bunged up with hard packed dust, cleaned this out and reassembled ……. O joy! after switching on the lamp worked.
Projector now back in Reception class of local primary school.
Thank You for help,
January 22, 2020 at 10:05 am #18873
Thank you Adam.
January 21, 2020 at 8:26 pm #18871
Installed a known good bulb from another working projector and still get the same sequence of tryig to power up, so still no light output.
PS How do I open a new ‘post’?
January 15, 2020 at 4:49 pm #18834
Thank You Adam will have to try another bulb though at the cost of a new one I will have to find some way of testing replacement bulb.
January 14, 2020 at 12:01 pm #18821
Thank you for prompt reply.
New bulb was fitted originally because there was no light whatsoever (sorry my choice of words in original post ‘light loss’ sounds the bulb went dim), it was swapped back when new bulb did not cure problem. Both bulbs have same fault……..bulb completely dead.
Is it commom for new bulbs to be faulty? The actual bulb in new assembly is Philips UHP 200/150W. Is there any way to verify if our new bulb is faulty other than having another OHP of same model?
Had a closer look at faulty bulb seems like it exploded as reflector is cracked, front lens all clouded and a wire I noticed wrapped around the new bulb glass has gone/disappeared from original lamp.
Just tried projector without any lamp fitted and get the same sequence of attempting to power up.
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