Schematic and/or wiring diagram - Magnavox TV Mod 20ms233s

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Hi I need the wire diagram or the schematic for my Philips/model/42pfl7403d/f7. I am trying to replace some capacitors on the ac power unit. I made the mistake of removing the two,and forgot where the went. Please help. Miller

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Hello

Do you mean you wants to get the schematic diagram of Philips Magnavox Tv circuit of PT series? I've with me that schematic for 20PT6245 [B-1] chasis. If you are interested in getting the same, send me a mail to my email address given below, as I can't upload it through this site. It is in Adobe Acrobat document format. All PT series will be similar with some minute diifferences. OK
[email protected]

I have the same model 355H radio/phongraph and would like to find the schematic to replace1 to 2 parts

The Philips Magnavox URC may work on that TV.

Hi and welcome to FixYa,

Offhand your described problem could be:

• top and/or bottom - vertical deflection, most likely a failing capacitor or the Vertical IC. In some instances, it could just be a cold solder on any of the IC's pins;
• all 4 sides - likely to be a main B+ issue. Often, this would be the main filter capacitor. In some instances, this could be a failing component in the horizontal section.

This would require opening the unit. This of course would require a fair familiarity of electronic components/circuitry and safety procedures, use of a DVM and a soldering iron. It would be to your added advantage access to a service manual or at the very least a schematic diagram with voltage readings. Should you be uncomfortable performing a DIY (do-it-yourself), perhaps your best bet would then be to seek the services of a qualified professional.

Just a start, do postback how things turned up or should you need additional information. Good luck and Thank you for using FixYa.

Usually it "Blows" the primary winding of the step down transformer and often does nothing else, if ya lucky, so try replacing the transformer, sometimes it can also, as well blow the Bridge Rectifier OR rectifier Diodes, on the secondry side. I havent seen schematics have you Goggled for them?