Same applies to the RCA's....fans come on, color wheel spins up, High voltage for lamp fires...If Jonas isn't getting the Main power supply to stay on, I'd look at it more closely, maybe with the lamp removed and the lamp switch activated---that way you can see if the bulb is shorted, if so everything should spin up and I believe that the lamp power supply should tic tic tic... If it still shuts down, I'd take a look at the 200+ volt supply that powers up the lamp driver board, I don't think there's any other hi-current supplies in that unit. As for the DM2, I think it has it's own section for power, and it's likely not built in the DM2. Now if I actually pull out the schematics I could be a REAL help, couldn't I?? Damon Brunger Telrad Electronic Services Ft Wayne, IN 46815 ----- Original Message ----- From: "Jeff Farnsworth" <jlfonz@xxxxxxxxx> To: <techassist@xxxxxxxxxxxxx> Sent: Sunday, August 22, 2004 10:37 PM Subject: [TechAssist] Re: RCA HDLP50W151 SHUTDOWN | Can you hear the color wheel? If so--is it to loud. Set might not be able | to sync up with color wheel thereby causing shutdown. Replace light engine? | Samsung won't fire at all (light) if color wheel don't sync up. | | TV Doctor | Avalon, Wi | | ----- Original Message ----- | From: "jonas miglinas" <miglinasj@xxxxxxxxxxx> | To: <techassist@xxxxxxxxxxxxx> | Sent: Sunday, August 22, 2004 5:49 PM | Subject: [TechAssist] RCA HDLP50W151 SHUTDOWN | | | > Hello all, | > Repaired this set a month ago and it's back to haunt me again. This time | it's come in dead with standby voltages ok. Changed the DM2 board and the | set fires up, but shuts down after ~ 20 seconds, after 20-30 seconds it | starts up again runs for about ~20 seconds and keeps repeating this pattern. | The fans don't even attempt to turn, so I suspect this is the problem. I | just can't seem to locate the fans on the cd schematic so I can trace where | the problem is. Either I'm going blind or can this be a board replacement | problem? | > Thanks for any advice. | > | > Jonas Miglinas | > Miglinas TV | > Chicago | > | > -------------------------------------------------------------------------- | --- | > Lost Password: | > http://www.tech-assist.org and select "Login Problems?". | > Email Archives: | > //www.freelists.org/archives/techassist/ | > | > | | | -------------------------------------------------------------------------- --- | Lost Password: | http://www.tech-assist.org and select "Login Problems?". | Email Archives: | //www.freelists.org/archives/techassist/ | ----------------------------------------------------------------------------- Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/