I to have a simular problem. My father in law can over and looked at my TV

Model# PR3052-A102
Serial# 29283525
Chassis# PTV520-AH01
This is a Magnavox Big Screen

This all started about a month ago. It started getting dimmer and dimmer until it now will not powerup completely. When I turn on the set, we do not here the High Voltage come on, but I do get the green power light on, and when I turn up the volume, I hear static (it is not plugged into a cable line). So, when he looked at it he found that it does not have High Voltage and the Blue CRT/Lens does not light up at the bottom (the other 2 do).When I look into the CRT/Lenses, it is dark. In addition, he found a resistor (R934) burned out. He suggested replacing R934 and possible the Horizontal Output Transistor (Q906). Problem is that we do not know wha the part#/value of these items are as we do not have a schemetic for the unit, I contact www.servicemanuals.net and they are looking for one for me. But as for now, does anyone know what I need to do to replace it? Also any other information would be greatly appreciated.

Thanks
Bret

I have a similar model Philips/Magnavox RM8530-A104 that was recently working fine then suddenly lost picture completely. The sound is perfect. I am not willing to pay $25 plus for a service manual if there is a simple repair available. There is a small glimmer of light in each of the CRT tubes and the 3 Leds on the power board are lit, although one of them blinks very slowly. If there are any suggestions or some simple repair options available out there, I am willing to try them. I am a trained electrical/electronic tech, soldering and use of multi-meters is not a problem. Scopes are hard to come by. Any help would be greatly appreciated. Thanks Mista Maverick

I decided to modify the 46" Projection TV by removing only the front screen/plexiglass and internal mirror. Surprisingly, the inside front of most large projection TV's is a large open cavity. I had enough room to build a platform above the 3 CRT's and place a 27" color crt television inside. I maintained the integrity of the electronics inside the projection TV and tapped into audio-input circuit in order to use the speakers as an external sound system for my 27" TV. To tell you the truth, I like the CRT picture quality better, despite the reduction in screen size from 46" to 27"...but at least I have picture with sound now...Problem Eliminated!

Mista Maverick