I have convergence problem since last week. I read people talking about setting it but how can you go to those settings? Is there something on the remote control? I opened my TV but could not see any where. So where are those
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Re: Convergence Settings Access
You will need to replace Both convergence ICs they are STK392-560 they are located on the d board mounted to large aluminum heat sinks. here is a link where you can get replacements as well as free installation instructions and on line tech support. http://servicemanuals.vstore.ca/
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The problem - you're setting the convergence settings, but you're not saving them, you're simply exiting the menu screen. Be sure to save your convergence setting for each of the three colors. It sounds like you're setting RED last, and not saving its convergence setting, whereas the GREEN & BLUE are holding their convergence settings, since you're saving them correctly before proceeding on to RED....
Convergence settings are internal to the set on a circuit board somewhere. If you do not have a service manual for this set and some rather expensive equipment, it is unlikely you would be able to restore convergence.
Normally, convergence does not drift unless some electrolytic capacitors have aged to the point that they cannot maintain high enough voltage.
This means that, even if you could find the pots that control the convergence, they would not be able to restore convergence.
The inside of a projection TV has DANGEROUS high voltages that can persist for WEEKS after the set is turned off. We are talking HEART ATTACK voltages.
You should have your set repaired by a qualified (insured) service technician.
Yes,convergence is dead,U know how to solder right?Buy the convergence kit,replace what in that kit.Also buy a DVD for instructions,never done this before,for safety reasons.Tries these websites Tv Repair World.com Or Ebay.com.
This sounds like a problem with "convergence" of the TV. Convergence is the electronic aiming of the Red, Blue & Green projectors. Typical convergence problems look like double or triple images on part or all of the screen, wavy lines, curled edges, excessive red, green or blue color or tint, etc. Sometimes, convergence issues can be corrected in a menu setting of the TV that has to do with "Picture Settings" or "Advanced Settings".
If the colors are out of alignment a great deal or went out "all of a sudden" it will probably not be repairable via the menu adjustment described above - but is certainly worth trying.
If it does not straighten out with the menu adjustment, it will probably require replacement of the convergence integrated circuit(s) chips located in the TV. This was a big ticket repair years ago, but can be done sometimes for as little as $40 in parts. Don't let the low price fool you though.. It can easily take several hours (or more!) to access, remove & replace the components and reassemble the TV. Soldering skills are a must - and I'm not talking about soldering plumbing pipes here either. These are delicate electronic parts and need a 15 - 30 watt soldering iron and desoldering braid or solder ****** and LOTS of patience to perform CORRECTLY. As such, it is another "not a DIY project" unless you're willing to turn your TV into a large floor model paper weight. If you decide to attempt this repair, you should google your TV brand and model along with the term "convergence". Parts, costs and procedures vary by TV. Unplug the TV for a day or so before starting the work to let capacitors discharge fully - just to be safe. Lastly - don't forget the heat sink compound - it is an absolute *must*!
Yes, you do need to set up the convergence in order to get the picture geometry correct. the antenna and maybe some other settings will need to be restored through the appropriate user interface screens. You will need your owners manual for a guide.
Hi Mark, tough call without putting a scope to the circuit, either the convergence IC`s are going bad, signal from DCU is going bad (digital convergence unit), or possibly bad solder somewhere in the convergence circuit, I`m afraid your going to need a tv tech for that problem, BMW Rider
Key Functions 7,8,9 = select R, G or B +100,0,PRE-CH = mute R, G or B INFO = test/normal 4 = shifts from point to line, grid move 2 = restore factory SOURCE = H/V select ADD/DEL = Save S.MODE = exit MUTE = cursor forward P.MODE = cursor back Volume +/- = moves convergence left or right Channel +/- = moves convergence up or down 1 = zero's all convergence settings (ugly!) U/D/L/R = move cursor SELF FOCUS = saves the convergence adjustment - do before exiting
Good luck. I let a sub-standard service joint work on mine - they replaced the OEM chips with a higher wattage equivalent, and I've had nothing but problems ever since.
Sorry no pic, but if you look from back of set on deflection board(board with HV transfromer)big part with about 4 wires coming out going to your picture tubes. Looking close to leftside of board the last IC with heatsink shield standing up has a small 7 pin ic if looking on it you should see TDA8177 or something to that affect. This is the verticle IC. Since you have found the IC's (convergence) then the only thing left is to look for open fuses like 1300, 2004, 1900 etc and see if open. Concerning cost if you buy from www.bluestaronline.com these part are inexpensive so it wouldn't hurt to buy all. Rule of thumb, if set has color problem then Convergence IC, if no problem just went out one day while playing fine then Vertical, then the alternative if no sound the audio area, which is not common for this set. Hope this helps!