hifi engine

Admiral 30A15-UL



Admiral 30A15-UL

Greetings, I just recently purchased this television in hopes of bringing it back to life. I am looking for some info. I tested all tubes and all are fine. I plugged the unit in and all tubes lit up but I had a loud humming from the speaker that I couldn’t lower or get rid of. I would appreciate any advice and it would be wonderful if someone had an owners manual or wiring diagram. Thanks so much in advance. Bob




Comments

Recaptcha's picture

Re: Admiral 30A15-UL

Does it contain a Fly-back transformer? I have worked on several CRT's and the fly-back transformer can cause audio issues if blown. The fly-back is the box with the wire coming out which plugs in to the side of the glass picture tube.

BTW, THE FLYBACK IS CHARGED WITH THOUSANDS OF VOLTS EVEN WHEN OFF. DISCHARGE PROPERLY BEFORE TOUCHING.