Return to the Electronics Forum | Post a Follow-Up

 o
Philips Magnavox rear proj tv problem

Posted by mrhsmith2 (My Page) on
Sat, Aug 4, 07 at 13:05

My 1998 PM rear projection tv model number 7p5451c101 displays a blue screen with wavy horizontal lines over the top of my regular picture. I can barely see shadows of the picture behind it. The signal chassis number is 212844e050b. When I press the menu button the picture goes black within 5 sec. I read other postings about replacing the R3340 resistor but I when I opened up the back of the tv I was overwhelmed with 6 circuit boards, three for the tubes, one larg signal chassis board, one large board next to the sig chassis and one small board mounted on the side. The sound works great, all AUX channels show blue screen. I need some direction before I start tearing out circuit boards.

Any help is much appreciated.


Follow-Up Postings:

 o
Philps 7p5451c101 chassis 212844e050b

My 1998 PM rear projection tv model number 7p5451c101 displays a blue screen with wavy horizontal lines over the top of my regular picture. I can barely see shadows of the picture behind it. The signal chassis number is 212844e050b. When I press the menu button the picture goes black within 5 sec. I read other postings about replacing the R3340 resistor but I when I opened up the back of the tv I was overwhelmed with 6 circuit boards, three for the tubes, one larg signal chassis board, one large board next to the sig chassis and one small board mounted on the side. The sound works great, all AUX channels show blue screen. I need some direction before I start tearing out circuit boards.
Any help is much appreciated.


 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!


Return to the Electronics Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.


Learn more about in-text links on this page here