Villy Boor Boorelec Durban -- If the transistor is getting hot it is usually drive causing it, have a close look at your drive waveform, may be the jungle IC. Tip if the output transistor is expensive dont test with a new one as you can loose 2 much on blow ups. Use 2 cheap say BU508AF paralleled or DF if required. Takes a lot to blow em up and you see all the wiggles before they get stressed. On Fri, 30 Aug 2002 09:00:52 Lyles Tv wrote: > >Resolder the HDT and replace the cap tied to it--I believe a .47uf 50VDC > >Jeff Farnsworth >Lyles TV and Appliance >17 S Washington St >Elkhorn, Wi. 53121 >ph 262-723-3477 >fax 262-723-3658 >tech@xxxxxxxxxxx >----- Original Message ----- >From: "Ron Miller" <rlmbkm@xxxxxxxx> >To: <techassist@xxxxxxxxxxxxx> >Sent: Thursday, August 29, 2002 7:42 PM >Subject: [TechAssist] Re: Sony KV27TS27, Blows regulators Q601 & Q602 > > >> >> Take a close look at the yoke plug, horiz pins sand and recrimp >> connector.HTH >> Country TV >> Ron Miller >> 484 FM444 S. >> Inez,TX 77968-5002 >> V.(361)782-6419. F.(361)782-9149 >> e-mail: rlmbkm@xxxxxxxx >> >> ----- Original Message ----- >> From: <gulftech@xxxxxxxx> >> To: <techassist@xxxxxxxxxxxxx> >> Sent: Thursday, August 29, 2002 7:23 PM >> Subject: [TechAssist] Sony KV27TS27, Blows regulators Q601 & Q602 >> >> >> > >> > Techs, >> > >> > This set has me crying "Uncle." Found F602, 2.5A fuse blown, Q601 & >Q602 >> > shorted. Replaced those along with C650 (330@16v), high ESR. R647, >> > D622, C613 & Q613 check good. Applied power. After 10-15 seconds, pix >> > pulls in on all sides (I think??). Turned set off. Regulators were >very >> > warm. >> > >> > Rechecked components in area. Still found nothing amiss, but replaced >> > Q613 for good measure (2SC4274). Reapplied power. Good pix. Phone >> > rings. Turn head. POW! Back to square one. >> > >> > Have done many of this sets without a hitch. The transistors I use are >> > Sony originals, carefully checked before installation and again after >the >> > first trial. Resoldered the driver transformer for grins. This set >does >> > not use the VCR's common to fail on other models. >> > >> > Any suggestions appreciated, >> > >> > TIA, >> > >> > >> > Ken Smith >> > Gulf Technical Services >> > 3034 Gulf Breeze Parkway >> > Gulf Breeze, FL 32563 >> > 850-934-8324 (Voice) 850-932-0819 (Fax) >> > >> > >> > ________________________________________________________________ >> > GET INTERNET ACCESS FROM JUNO! >> > Juno offers FREE or PREMIUM Internet access for less! >> > Join Juno today! For your FREE software, visit: >> > http://dl.www.juno.com/get/web/. >> > ------------------------------------------ >> > To REMOVE your email address, click here: >> > http://www.tech-assist.org/unsubb.html >> > To CHANGE your email address, click here: >> > http://www.tech-assist.org/change.html >> > ------------------------------------------ >> > ***NEW*** Tips Added Instantly!!!*** >> > Submit Repair Tips here: >> > http://www.tech-assist.org/secure/tip/ >> > >> > >> >> >> ------------------------------------------ >> To REMOVE your email address, click here: >> http://www.tech-assist.org/unsubb.html >> To CHANGE your email address, click here: >> http://www.tech-assist.org/change.html >> ------------------------------------------ >> ***NEW*** Tips Added Instantly!!!*** >> Submit Repair Tips here: >> http://www.tech-assist.org/secure/tip/ >> > >------------------------------------------ >To REMOVE your email address, click here: > http://www.tech-assist.org/unsubb.html >To CHANGE your email address, click here: > http://www.tech-assist.org/change.html >------------------------------------------ >***NEW*** Tips Added Instantly!!!*** >Submit Repair Tips here: >http://www.tech-assist.org/secure/tip/ > ___________________________________________________ Communicate with others using Lycos Mail for FREE! http://mail.lycos.com ------------------------------------------ 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/