Well Damn Jerry....your life sucks! Doesn't it..... Anyways, there's several things to consider. [1] Did Samsung make the convergence adjustable for EACH input?? (Been there, done that). [2] Did you SAVE and FORGET to Flash focus (if it has it)? You'll lose your new settings everytime on Samsung/Sony/Hitachi..... 3] and most important...can you still ADJUST the convergence grids? If so, you probably wiped the Eeprom's contents. On 1 2 and 3 you need to adjust the convergence, if it doesn't move at all, well....I'm sure you've checked that already. Do you need an Eeprom replace?? I really don't think so, you'll know it if you SAVE one or 2 points, turn off the TV, back on, and those points have gone back to their first setting.... Damon B Telrad Electronics Fort Wayne IN ----- Original Message ----- From: "GERALD GANN" <alpha21century1234@xxxxxxxxxxxxx> To: <techassist@xxxxxxxxxxxxx> Sent: Tuesday, December 13, 2005 3:58 PM Subject: [TechAssist] Re: One more try Samsung PCH521R May need schematic. Convergence problem. > PCH521R is definitely different than the PCJ522R. The convergence and the audio board are together and stand up on the left side looking from the back. I can download the PCH521R from ServiceManuals.net but I thought I would check one more time on the list before I spend the $24.00. > OK Here's the lowdown. After changing all there STK's and the 3A fuse in the P/S as stated in T/A tip. I set up the convergence to perfection and saved. After doing that I noticed I only had audio coming from one speaker. Being convergence and audio are on the same board I reached inside from the front to flex the board, I only assume I did this so I could hear if the other speaker came on. Anyway whammm it got me. That hurts. I don't know where the high voltage came from but it burned a pin hole in my middle finger and a small mark on my pointer finger when I touched the audio IC heat sink. You can call me dummy I know I should have used a wooden stick. I could be wrong but my guess would be it has happened to all of us at some time or another. > Anyway after that I pulled the convergence/audio board and resoldered the audio circuit audio came back on both sides but convergence was back to the way it was before I started. Question could the high voltage zap have taken out the 3 STK's or do need to go to the power supply? I checked all the fuses on the power supply board and they are good. I do need the schematic for the PCH521R > Sorry for the long post but I thought it necessary to tell all to get a good response. Thanks. > Jerry > Alpha 21 Electronics > Granite City, IL 62040 > 618-452-8620 > alpha21century1234@xxxxxxxxxxxxx > > GERALD GANN <alpha21century1234@xxxxxxxxxxxxx> wrote: Thanks Bill that's why I ask I have the PCJ522R. > > The convergences board is definitely different. As long as the > > procedure or the same I can go from there. I did a PCJ522R > > awhile back and had to order a special remote to save changes. > > Thanks again. > > Jerry > Alpha 21 Electronics > Granite City, IL 62040 > 618-452-8620 > alpha21century1234@xxxxxxxxxxxxx > > > Premium Technologies > wrote: Gerald, > Almost identical, both are the same chassis, and the PCJ522R is on file in the members > area... If you have any problems getting it I have it and I'd be glad to download it or > sections of it that you need... > Bill > > William Rayburn, CET > Premium Technologies > PO Box 442 > Long Beach, WA. 98631 > 360-642-4993 > > ----- Original Message ----- > From: "GERALD GANN" > To: > Sent: Tuesday, December 06, 2005 12:33 PM > Subject: [TechAssist] Re: OK new question. Samsung PCH521R May need schematic. Convergence > problem. > > > OK new question. Being I got no replay on my first post. Can > > some tell me if the convergence setup is the same for this modal > > as it is for the PCJ522R? The schematic would still be great. > > Thanks. > > Jerry > Alpha 21 Electronics > Granite City, IL 62040 > 618-452-8620 > alpha21century1234@xxxxxxxxxxxxx > > > GERALD GANN wrote: > Samsung PCH521R May need schematic. Convergence problem. > > Found this tip in T/A > > Garris TV, Make: Samsung, Model: PCH521R, Chassis > > APT51B, > > Problem: Convergence way off and unable to adjust, top/bottom bowed-in., > Cure: Open 3A on P/S Module located on right side of chassis, this fuse protects the -26v > going to all (3) STK391-020 Convergence IC's which are located on left side of chassis on > large heat-sink. Replaced 3A fuse on SMPS board and replaced all (3) STK391-020 Convergence > IC's on the Convergence/Sound board. > Comments > > > Before I change all three STK's, looks like a > > pain in the axx's. Anyone have any quick fixes? No leakage from > > tubes. > > Jerry > Alpha 21 Electronics > Granite City, IL 62040 > 618-452-8620 > alpha21century1234@xxxxxxxxxxxxx > > > > > > -------------------------------------------------------------------------- --- > This Email List is accessible to the general public through search engines. 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