45" Pioneer projection tv model:SD-P4571K/KC,year:Nov 94.Intermittent flashing picture with no audio and lines running across screen (left to right) while problem present.When menu button is pressed picture and sound come in perfect but customer can't watch with menu screen on as it's obviously annoying.

Eventually after about 15 minutes or so picture looses severe convergence and the bottom of the picture curves upwards and the top of picture is curver upwards as well.

When tv looses convergence menu can longer be accessed and channels cannot be changed only volume and power but no OSD bar for volume.I can no longer access RCA input jacks.
When tv is first turned on from a cold start I can access RCA input jacks with perfect picture & sound but when switched to tuner input picture begins to flash.

I replaced the 3 electrolytic capacitors in the seperate IF block:

C22=0.47 uf,50v
C26=0.47 uf,50v
C05=47 uf,16v

I also resolder IF block,tuner and lots of parts on many boards,I don't repair projection tv's nor do service/pickup calls but this one is an exception.
Anyone have any common repair tips for me?.Thanks in advance.

Sidney
E-mail:sidneybek(at)yahoo.com
Dartmouth,Nova scotia
Canada

see if set has an EW parabolic ic in it, if so change it. about $8.00 US money

Jesus christ that line is getting old! "I don't service these but this one is an exception" What a whiny ass baby! If it can't be fixed with new caps and some solder, you don't seem to be able to do your job!

And, this is NOT ganges man!

Go shove a 40KV high voltage up your ass,you piece of shit & coward for not identifying yourself.

Sidney
Dartmouth,Nova scotia
Canada

I would suggest that you take that unit to a repair shop that has been recommended to you by word of mouth by your friends,relatives,co-workers or neighbours as that is the proper way to find an honest and qualified tech,they may be an authorized shop for that brand or they may not,they may be a store front or home based but they would be qualified to fix it as stated by the many notices manufacturers place on the back of their equipment for customers to read and respect.

If you attempt to repair the item yourself you will definetely not fix it but instead create more problems,a risk of fire and personal injury and afterwards a lawyer will come to you and tell you "lets sue this tech for $XXX XXX as it won't cost you a nickle or a dime,you penny pincher,spend thrift,nickle & dimer,low baller,cheapskate,tightwad,freeloader,toe picker and hustler" and the lawyer would screw you just like a car mechanic and the only thing you would get out of it is a free jar of vaseline and a pillow.

Finally it takes years of formal training to acquire this knowledge usually by community college/vocational school (some by correspondense courses or the like) as well as training afterwards by manufacturers or from everyday personal experience working on stuff combined with expensive dedicated test equipment,service manuals and in some cases repair tips that we share through the internet.
In plain English:

take it to a repair shop as we have to make a living just like you" also if it was just cleaning,a loose wire,or a burnt fuse we would be rich.By way that tech that replies to customers on this site should stop even if it requires sacrificing his dominating authority and attention whoring.