Lendsey: What was the symptoms to start with? Jerry Alpha 21 Electronics Granite City, IL 62040 618-452-8620 alpha21century@xxxxxxxxxxxxx Lindsey Altman <athomeservice@xxxxxxxxxxxxx> wrote: Hi All, Finally got this one going! It's been a couple months or more since I first posted on this one. Not sure where the email is actually. May not have sent it all... First the memory, or is it eyes/ hair? Any how, I changed the yoke board mounted on the middle of the cabinet to effect repair. Never saw this symptom in an "RCA 169", that wasn't related to the "Auxiliary Power Supply". Looked like defective diodes on the supply board. After I replaced the filament resistor to the tubes. Pulsed, red tube lit with retrace only, repeated endlessly I suspect. Resistor location R4703 / 2.1ohm 3W got the filaments back (note: must be checked out of circuit). The schematic says 3.2 but research by "North Texas Distributors" got the right one for me. They also stuck it in the mail for under a dollar. Thank you NTD. I may decide to troubleshoot further but depends on the time here. I'll let ya'll know if further develops in it. I'm also going to add a fan to extend play life on this unit I hope. I added some stiff cardboard behind the gaskets to prevent cuts / coolant leakage and taped them in place. HTH, Lindsey AT HOME SERVICE COMPANY Lindsey Altman 440 Cedar Ave. Claxton, Ga. 30417 912-739-1019 athomeservice@xxxxxxxxxxxxx labeauman@xxxxxxxxxxxxx ----------------------------------------------------------------------------- This Email List is Public. Remove: http://www.tech-assist.org/remove.htm Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/ ----------------------------------------------------------------------------- This Email List is Public. Remove: http://www.tech-assist.org/remove.htm Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/