Yeah Bob, You should be embarrassed, anybody would have known that..... :^) "joe" ================================
[EMAIL PROTECTED] From: [EMAIL PROTECTED](Gemini�Computer�&�TV) Date: Fri, Jul 23, 2004, 7:12am To: [EMAIL PROTECTED] (ELECTRONICS PROFESSIONALS LIST) Subject: Re: [Techs] Sharp 27US60 immediate shutdown Reply�to: [EMAIL PROTECTED] (ELECTRONICS PROFESSIONALS LIST) Never mind I found the problem. Here is the story below. I can't believe I had not checked vertical before creating this post. I am so embarrassed! There was no 24 volts to pins 3 and 6 of vertical IC (IC501 - LA7841). Traced source back to D502 which checked okay. When checking the continuity path between pin 7 of the flyback to the anode of D502, there was none. Problem ended up being that there is a solder rivet surrounding pin 7 which really needs a good "blob" of solder to ensure good continuity. This corrected the set. Bob Waterman, CET� #RI-28 Master Technician License #9109 Service Manager / Parts Manager Gemini Computer, TV, & Security Alarms (508)695-7302 (508)695-7769 FAX [EMAIL PROTECTED] [EMAIL PROTECTED] www.geminicomputertvsecurityalarms.com ----- Original Message ----- From: "Gemini Computer & TV" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, July 23, 2004 6:34 AM Subject: [Techs] Sharp 27US60 immediate shutdown I have a Sharp 27US60 that is going into immediate shutdown (within 10 seconds or so, the high voltage does come up with the set) after power on. The TV can not be switched on or off again until the set has been unplugged and reset. The B+ is 126 volts and steady, the 7 and 17 volt standby sources are normal, 200 volts is good, and so is 9 volt regulator IC751. I had a new flyback on the shelf so I swapped it with no change. I can find very few tips on this model and I have checked D707, D712, and IC702 as per the 32US60 in WINSTIPS. Need some assistance on this one. I am getting bogged down with dogs as it is getting busy with lightning season if effect. Bob Waterman, CET� #RI-28 Master Technician License #9109 Service Manager / Parts Manager Gemini Computer, TV, & Security Alarms (508)695-7302 (508)695-7769 FAX [EMAIL PROTECTED] [EMAIL PROTECTED] www.geminicomputertvsecurityalarms.com ______________________________________________ Tech Repair CD...order your just $49.00 plus shipping...One year of updates free. www.intrepid-video.com www.tech-repair.net Techs mailing list [EMAIL PROTECTED] http://intrepid-video.com/mailman/listinfo/techs_intrepid-video.com ______________________________________________ Tech Repair CD...order your just $49.00 plus shipping...One year of updates free. www.intrepid-video.com www.tech-repair.net Techs mailing list [EMAIL PROTECTED] http://intrepid-video.com/mailman/listinfo/techs_intrepid-video.com Joes....Electronics �(Joe:Tech/2004) [EMAIL PROTECTED] Fax::509-479-2283 _______________________________________________ Tech Repair CD...order your just $49.00 plus shipping...One year of updates free. www.intrepid-video.com www.tech-repair.net Techs mailing list [EMAIL PROTECTED] http://intrepid-video.com/mailman/listinfo/techs_intrepid-video.com
