Question about Televison & Video
I want to know the value of zenner diode
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Posted on Jan 02, 2017
SOURCE: Hitachi C29-F300b television
Thanks Larry I'm just a little reluctant to buy a manual to find one part in a TV repair for an elderly neighbor. Its a love job and proved more costly than I anticipated. I'll try everything I can to verify the part type first. The diode is about 30 cents US but I need to be sure of its type before I switch it on. I am very confident I have solved the problems in this set once I have the new diode in. good to hear from you and thanks for the input Regards from Rod
Posted on Aug 17, 2007
SOURCE: I have Sharp 20V-L80M, Power
I have tried numerous times and the TV manufacturers will not sell parts or diagrams to consumers.You have to be a repair shop with a username and password just to view the stuff.Here is one possibility.
I will try for others...hang on please.Here is another possibility.All I usually find is user's manuals which are free few and far between.Schematics just aren't out there.
Sorry to have to tell you that.I like to fix my own stuff too.There is nothing more I can suggest with all the limited access.Good luck!Maybe if you take the regulator out and ask a shop?
Posted on Aug 02, 2010
SOURCE: I have 02 plasma
The fault lies in the energy sustain boards, also called sustain boards. X-sus and Y-sus/Z-sus are the to sustain boards. If your meter has capacitance measurement capability, test the caps to see if any of them are fried. Should read OL or infinite if its bad. Try it and let me know.
Posted on Aug 24, 2010
SOURCE: elllo iv got a lg
Not sure if it is a power supply issue for sure, but I've had a similar issue on an older model LG LCD TV. My symptoms were: in the middle of watching TV the screen blinked a magenta color for a moment and then the screen went blank, the TV would seem to turn off and on but could not get the screen to show anything, my power light would also blink 13-16 times and was delayed when turning off. after researching this forum I found a fix. Mine was a problem with a damaged capacitor on the power board it was a Samxon 2200UF 20V capacitor that had a slight bulge on the top. If you remove the back panel of your TV and locate the Power Board (the circuit board that the power cord plugs into) check and see if any of the capacitors on this board have any bulges at all they may appear very slight but will be on the top. If you you find any with bulges they are most likely defective. Remove the circuit board and de-solder the damaged capacitors with a soldering iron from the bottom of the board, and replace with a 2200UF capacitor (or whatever UF value is associated with the damaged capacitor) with a higher voltage rating of 25V or higher that way they will run cooler. Be sure to note how the original capacitors were put in (which side the negative connects to) to avoid damaging the new capacitors. I was able to find the capactitors at a local electronic store, but you could also find them online. The capacitors are $2-4 dollars each and a soldering Iron is approximately $10 at a local radio shack. This fixed my TV, cost me $12 with a soldering Iron and took approximately 1 hour to repair. If you do not see any damaged capacitors then it may be another issue, but it is a simple process to check, Again I did not perform this on the same model TV, but it was a similar symptom and an LG. Good luck!
Posted on Mar 26, 2011
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