easyab
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Feb 28, 2010, 4:32 AM
Post #13 of 13
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Re: [Puposky] Sony KP-61HS30 - HELP!
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Hi,
SONY Convergence Faults simple if you are familiar with this type of TV Repair. It also helps to have In-Home Service experience and a known good source of IC's. Mechanically adjusting CRTs will require re-alignment.
First step is to confirm that you have a convergence fault with the Convergence Gallery at : http:Calgary.ConvergenceRepair.Com/gallery.asp (or Toronto.ConvergenceRepair.com, Vancouver, etc.)
Identify your specific fault (Red Vert, Blue Hor, etc.) using the customer menu and controls on your TV.
1. Open up the TV, Access the bottom of the correct PC board without doing damage.
2. Change the convergence IC's, check for defective resistors. Change if required.
3. Re-install board. Electronics Repair is Complete! Clean lens and minor adjust if required.
If you are a rookie and attempt repair, it is likely the TV will end up as scrap. Most "internet" ICs are erzatz (artificial and inferior substitute or imitation) and of no use. Blogs have been taken over by sellers of DUD ICs, telling you how easy it is to repair.
Soldering the STK 392 ICs and dis-assembly of the chassis and accessing the board are tasks that require a certain level of skill. Technical training and years of experience really pay off in this area. Identifying and dealing with secondary faults is also a specialized skill.
Many convergence help requests start with "I got some ICs Online, changed them and TV is dead or worse than before".
Of course you can get a "Kit" with substitute ICs and resistors all of different values from original. Not necessary and only creates more potential problems. New Internet ICs are probably DUD and resistor replacement job is rarely required with Sony TVs. One of the biggest problems is doing a good job soldering. Sony have tiny thin film components in the area you are working at the bottom of the ICs. Touching or coming close to these components will cause no picture or other convergence problems. Recognising and fixing these problems is almost impossible for a rookie.
Poor design of RPTV with STK ICs is a an urban myth created by incompetent servicers. IC failure is caused by Power Line Noise, Lightning Strikes, overheating and collisions with vacuum cleaners.
If you want to watch the TV again, get local service support. Inquire with a description of your trouble, if you do not get an instant recognition of the problem and a specific quote for the job, call someone else. Any shop that offers to do a service call for estimate (send a kid to pick it up) is either just starting in the business or trying to run your repair up to $300 - $600.
easyab
http://calgary.convergencerepair.com/index.asp
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