Jeff, This is what I have on KV27FS13. 1. Symptom: Dead / Standby light flashes 4x, 135v line pulses between 0v - 30v several times, then unit shuts down. Power on to recycle. Solution: D501 is leaky. Measures 80 ohms in both directions. Part's ... D501 Diode -- 871994580 -- ERC06-15S 2. Symptom: Immediate shutdown at power up, 4 blinks of LED Solution: Found a transistor in place of D616 that was open, replaced w/correct diode and unit powered up and operated normally. The transistor that was in place of D616 was a 2SC4370 and did have original solder indicating this came from factory this way. Transistor checked open. Replaced D616 w/originally listed part number (871951037) and unit operated normally. Located off of T603/pin 14 of the power supply. Technical Description: Disconnected 200v line to CRT board and still shuts down. Horizontal Output checks good, 135v good, IC-502/pin 2 0v. Unsoldered IC502 and still shutdown and no +/- 13v, no HV rush at power up, no HD/VD drive at first power up. Low B from D616 does not come up at all. If you need more info, let me know.I can send you cct operation/ trouble shooting tips. Hope it helps'. Panday >From: "Larry E." <videotech@xxxxxxxxxxxx> >Reply-To: techassist@xxxxxxxxxxxxx >To: techassist@xxxxxxxxxxxxx >Subject: [TechAssist] Re: Sony KV27FS13 Shutdown ! Schematic Needed! >Date: Mon, 07 Oct 2002 22:15:46 -0400 > > >Jeff, don`t have anything specific on that set but I believe you can >pull up the fault codes on that set and see what the set has entered. >This is NOT the same as the service mode so be sure to push "vol minus" >in the sequence, Display,Channel,5,Volume Minus,then Power. The screen >will now show all fault codes this set has encountered and the number of >times they have occured. This might help you figure which circuit is >causing you all this grief, hth, Larry E. > >Larry Eastman >American TV & Electronics >Crystal River, Fl. > >Shoreline Electronics wrote: > > > > > Make : Sony > > Model : KV27FS13 New ...right out of the box ( 27" WEGA/VEGA) > > Problem : Shutting down on startup. LED code blinks 2 times. > > > > Scoping the Horiz Output collectors waveform , we saw excessive ringing >& > > static between H pulses. Figured the flyback was the issue. Changed > > it.....no help. > > > > A little more digging revealed D504 shorted ( ERC06-15) ....this is > > paralleled across an identical diode D501. > > > > Replaced the diode ( From a scrap set).....set fired up HV >great......then > > shutdown a few seconds later. Now 4 blinks! ( Vert failure) > > > > Scoping the yoke pins...showed very little/weak drive. Changed the >TDA8172 > > ...used the STV sub for that. > > > > Still no fix....cycled the set a dozen or so times while checking >waveforms > > the D504 shorted again !! UHG ! > > > > Odd for this set to be like this right out of the box. This set was > > bought at a local casino with comp points....customer doesn't want to go > > thru the warranty routes...he's willing to pay us to do it. > > > > Is there any Sony bulletins on this model OR a PDF file someone could >send > > us for this newer set? > > > > > > Jeff Stielau > > Shoreline Electronics Repair > > 125 Beech Tree Lane > > Westbrook, CT 06498 > > 860-399-1861 > > 860-664-3535 (fax) > > jstielau@xxxxxxxx > > > > > > ------------------------------------------ > > 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/ > > > > > > > > >-- >Larry Eastman >American TV & Electronics >Crystal River, Fl. >http://www.tvjunkyard.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/ Panday _________________________________________________________________ MSN Photos is the easiest way to share and print your photos: http://photos.msn.com/support/worldwide.aspx ------------------------------------------ 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/