Unplug the convergence board, if it powers up, replace the chips. Jeff FAX 717-564-4952 Intrepid Video & Electronics 501 Luther Rd Harrisburg PA 17111-2055 Be careful of your thoughts. They may become your words any moment. Order your tip CD today. Filled with TV, VCR, camcorder tips and more. Version 3.0, ready, with more tips, user friendly program. $49.00 for CD, plus first year of tip updates. sales@xxxxxxxxxxxxxxx for more info www.tech-repair.net www.intrepid-video.com www.thetoolcaddy.com www.9-11-2001tragedy.com ******************************************************************** ----- Original Message ----- From: "Frodo Underhill" <frodo.underhill@xxxxxxxxxxxxx> To: <techassist@xxxxxxxxxxxxx> Sent: Wednesday, November 06, 2002 1:21 PM Subject: [TechAssist] Toshiba TP50F61 No Picture or Sound This unit was given to me with a broken red tube, and burnt red yoke. After replacing the red tube and yoke (remanufactured tube, new toshiba yoke) and adjusting the convergence, the unit worked fine. After about two weeks of working fine, one day the picture shrunk for a second, and come back to normal. This happened maybe twice while I was watching it, then the tv shutoff. Now the red led is solid on, no picture, no sound. If you press the power button the LED goes dark. I have checked Z801 to see if this is a shutdown condition, and I don't think it is. (Shutdown would blink the led, Z801-16 High) Next I went to the no indication on screen diagnosis, it says to check for 5V on QA01 at 22, 23, 24, 25. I get ~4.7 on 22, 23, .5 on 24, 0 on 25. QR60 59, 60, 61 pins show no voltage either. Before I go and change out those ICs, are there any other suggestions I can check? Referance material : http://www.tacpservice.toshiba.com/TACP/training/TV/pjtv05f.pdf See above, page 33 "No indication on screen" http://www.tacpservice.toshiba.com/TACP/training/TV/pjtv06f.pdf Page 18, Troubleshooting shutdown circuits. Patrick Neckolaishen Aurora, IL ------------------------------------------ To REMOVE your email address, click here: http://www.tech-assist.org/unsubb.html To CHANGE your email address, click here: http://www.techassist.net/forms/change.html ------------------------------------------ ***NEW*** Tips Added Instantly!!!*** Submit Repair Tips here: http://www.tech-assist.org/secure/tip/ ____________________________________________________________ Free 20MB Web Site Hosting and Personalized E-mail Service! Get It Now At Doteasy.com http://www.doteasy.com/et/ ------------------------------------------ To REMOVE your email address, click here: http://www.tech-assist.org/unsubb.html To CHANGE your email address, click here: http://www.techassist.net/forms/change.html ------------------------------------------ ***NEW*** Tips Added Instantly!!!*** Submit Repair Tips here: http://www.tech-assist.org/secure/tip/