Question about Optoma RD65 65" Rear Projection HDTV

3 Answers

After lamp replacement

I replaced the lamp in tv it restarted fine picture is great. NOW when I turn off the tv it begins to start up but shuts off and the two red lights indicating lamp failure are on. If I slid out the lamp and then push it back in the tv starts up fine. I have to do this everytime I shut it off. Is there a reset? or what can I do?

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  • fatmag Dec 15, 2007

    i have same issue. Replaced lamp, but I have a feeling lamp was not bad in the first place. I get sometimes one red light by lamp, sometimes both red lights, if i re-seat the lamp, it generally works fine.

  • Anonymous Jan 25, 2008

    I have the same problem. However, My Optoma RD65 TV's OEM lamp is OSRAM 120W/1.3 E23. I got the replacement lamps OSRAM/100-120w/1.0 E23h and OSRAM 100-120w/1.3 E23h, both started the first time and would not start up subsequently thereafter. However, they would start up after re-seating the lamp assembly. My OEM lamp has no issue in start-up.

    I notice that the E23h lamps have a smaller coil (inside the lamp) while the OEM E23 lamp has a bigger coil. Perhaps this bigger coil is that Optoma TV needs to start up the lamp. Based on what I read, the replacement lamps sold on ebay are all China-made knockoffs that nay not be the exact OEM-German made OSRAM. So buyer beware!! My experience speaks for itself.

  • Anonymous Feb 29, 2008

    Exact problem. I got a replacement for just the lamp, but I think they sent me a Philips bulb.

  • Anonymous Apr 10, 2008

    My replcement bulb exhibits the same problems described. Bulb was replaced a couple of days ago and the TV now takes a couple of trys to fire up.



    Yes - I bought the bulb from EBAY and it appeared to be identical to the one that I threw away. It fired up properly the first time and start-up problems appeared the next day. I have turned off the set completely by using the swithc on the left side of the television which may explain why i have not needed to re-seat the bulb assembly.

  • Anonymous Jan 31, 2009

    Same problem!  Replaced lamp with OSRAM E-23.   TV will not restart.  However, if I remove the lamp assembly and re-install it will come on.   There appears to be a protective  circuit that is tripping.  Possibly it is static electricity.

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3 Answers

Optoma RD50/RD65 uses E23 5Kv precharge lamp. E23h lamps from ebay are 15Kv precharge. The letter h from E23h indicates High precharge voltage, 15Kv. Check out my other post here:
http://www.avsforum.com/avs-vb/showthread.php?p=13566616

Insist on E23 with 5Kv precharge or it's not going to work on Optoma RD50/RD65. I ought to know, I bought 2 lamps E23h on ebay to find out the truth.

Posted on Apr 19, 2008

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I just replaced my lamp. TV seems to be working fine, but I kept on getting the message saying time to change lamp. I went to the service menu using Menu 6-1-9 Menu, and try to reset the lamp life, but it's not letting me do anything so every time i turn on my TV, I am getting that error message.

Posted on Mar 12, 2008

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  • Master
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Sounds like the plug is not making a good connection needs to be seated better.

Posted on Dec 10, 2007

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