I like to give a dishwasher cleaned board about 24 hours before power up, never had one blow, even with IHVT's on it. Damon Brunger Telrad Electronic Services Ft Wayne, IN 46815 ----- Original Message ----- From: "Hoyt's TV" <hoytstv@xxxxxxxxxxx> To: <techassist@xxxxxxxxxxxxx> Sent: Friday, March 19, 2004 12:15 PM Subject: [TechAssist] Re: UPDATE Panasonic PT47WX49E Chassis DP820 Hi voltage come up and shuts down immediately | I never tried the dishwasher trick but I've been using Lestoil for years. | Soak the board in full strength Lestoil for a few minutes and brush it with | a paint brush to loosen whatever. Then spray with hot water to rinse the | Lestoil and dirt off. We used a compressed air/water sprayer at the Navy | Yard restoration shop. I use the kitchen sink spray hose in my shop. Dry | well with compressed air or whatever you have. I've cleaned the old band | switch type tuners, boards, chassis with IF transformers, and remote | controls this way with good results. Some ICs may get water under them that | takes heat or just sitting to dry for a few days, but that is rare. | | | Russ Hoyt | Hoyt's TV | Exeter, NH -- home of The Free State Project | http://www.freestateproject.org/index.jsp | | | ----- Original Message ----- | From: "Gerald Gann" <alpha21century@xxxxxxxxxxxxx> | To: <techassist@xxxxxxxxxxxxx> | Sent: Friday, March 19, 2004 11:54 AM | Subject: [TechAssist] Re: UPDATE Panasonic PT47WX49E Chassis DP820 Hi | voltage come up and shuts down immediately | | | > Jim, Al I don't think so. I is on the back of the board. That was the | first thing I checked when I saw that. You can even see spots on the top of | the plastic that houses the RCA and RF connectors. Jim are kidding about | putting it thru | > a "pots and pans" cycle? I have dishwasher at home. | > Thanks | > Jerry | > | > Alpha 21 Electronics | > | > Granite City, IL 62040 | > | > Ph. 618-452-8620 | > | > Fax 618-876-5157 | > www.alpha21century@xxxxxxxxxxxxx | > | > | > Jim Myers <jr.myers@xxxxxxxxxxx> wrote: | > Panasonic web site shows the board, P/N TNPH0370ADS, with a dealer price | > of $458.02. Any chance the stuff that got spilled on the board is | > coolant from a leaking CRT? Consider pulling the board a putting it thru | > a "pots and pans" cycle, that is if you own a dishwasher. (Some of us | > can's affort one!:) | > | **************************************************************************** | *************************************** | > Since 1972 | > Jim Myers | > Telrad Electronics | > Fort Wayne, Indiana | > | > | > Gerald Gann wrote: | > > Good morning group: | > > | > > As recommended by Jeff Dougherty Tips came from Tech Repair CD | > > | > > 1. Unplugged yokes one at a time. Nothing changed. Tip said Green | > > | > > yoke. | > > | > > 2. Check C524 out of circuit. Checked good. | > > | > > 3. Checked R860, R857 and R858. All good | > > | > > As recommended by Robert from H&H Electronics | > > | > > Change STK392-110. No change. | > > | > > After closer examination of the circuit board, the one on | > > | > > the left when looking in the back. The one with the convergence | > > | > > IC's, dual tuner and a ton of SM IC's. The only numbers I could | > > | > > find that might be the board number is TNPH0370. Anyway something | > > | > > has been spilled onto the board. It was all gummed up in-between | > > | > > the SM IC pins. Tried cleaning it with board wash. Did not help. | > > | > > Looks like board replacement time. I called Try-State Module | > > | > > and they are not set-up to work on them yet. Did say they would | > > | > > be in about month. Might keep that in mind. | > > | > > Called Panasonic about the board and they put it in research. | > > | > > Haven't hear back from them. Know it has to be expensive. | > > | > > Ernie from Valley TV was trying to download the manual from | > > | > > Panasonic website. Must not have had any luck. | > > | > > I guess I am on hold till I get the schematic or a new board. | > > | > > Thanks | > > | > > | > > Jerry | > > | > > Alpha 21 Electronics | > > | > > Granite City, IL 62040 | > > | > > Ph. 618-452-8620 | > > | > > Fax 618-876-5157 | > > www.alpha21century@xxxxxxxxxxxxx | > > | > > | > > | > > | > > Gerald Gann wrote:Panasonic PT47WX49E Chassis DP820 Hi voltage come up | and shuts down immediately. Could use a schmatic. Any one have any tips or a | schmatic I could use. | > > Thanks | > > Jerry | > > | > > Alpha 21 Electronics | > > | > > Granite City, IL 62040 | > > | > > Ph. 618-452-8620 | > > | > > Fax 618-876-5157 | > > www.alpha21century@xxxxxxxxxxxxx | > > | > > | > > | > > | > > | > | > -------------------------------------------------------------------------- | --- | > > Lost Password: | > > http://www.tech-assist.org and select "Login Problems?". | > > Email Archives: | > > //www.freelists.org/archives/techassist/ | > > | > > | > > | > | > -------------------------------------------------------------------------- | --- | > > Lost Password: | > > http://www.tech-assist.org and select "Login Problems?". | > > Email Archives: | > > //www.freelists.org/archives/techassist/ | > > | > | > -------------------------------------------------------------------------- | --- | > Lost Password: | > http://www.tech-assist.org and select "Login Problems?". | > Email Archives: | > //www.freelists.org/archives/techassist/ | > | > | > -------------------------------------------------------------------------- | --- | > Lost Password: | > http://www.tech-assist.org and select "Login Problems?". | > Email Archives: | > //www.freelists.org/archives/techassist/ | | | | -------------------------------------------------------------------------- --- | Lost Password: | http://www.tech-assist.org and select "Login Problems?". | Email Archives: | //www.freelists.org/archives/techassist/ | ----------------------------------------------------------------------------- Lost Password: http://www.tech-assist.org and select "Login Problems?". 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