CurtPalme.com Home Theater Forum

the_maniac · Joined: 10 Jul 2009 Posts: 111 Location: Austria - Europe

Hello,

first of all excuse my english, i am from austria.

last year i bought my first CRT set an old VPH600 (same as VPH722) on ebay for 20USD, but never used it.

now i have also one 1252 (works perfect) and one 808s (waiting for new tubes).

so i can't do any more with these two so i went back to my 722 to play a little bit with it and maybe give it to my father as a dvd set if it works correctly.

but atm it has 2 problems.

First problem is, that the test pattern most of the time doesn't get a horizontal sync, it's running left right all the time.

but when i drive the projector via rgb 576i the sync is ok, but i can't switch to test pattern ^^

second on more important problem is that the picture is very dark in 2/3. see here:

anyone has an idea which board can cause this problem ?

and don't wonder about the bad sharpness, the convergence is setup very bad at the moment, i'll do it perfect if the projector works correctly ... i think for watching dvd's the set can perform quiet good enough.

**Curt Palme** · Posted: Thu Jul 23, 2009 4:14 pm Post subject:

Check the board that sits vertically under the top cover between the tubes. Clean the module contacts.

I've got a few parts/boards for this set that you can have at no charge, just cover shipping.

It might be $50 or so to ship the boards, but you are one of the last people running the 600/722. Smile

Let me know if you want them.

the_maniac · Joined: 10 Jul 2009 Posts: 111 Location: Austria - Europe

already cleaned the module contacts and checked the boards but they looked good. maybe i'm going to resolder them or change the caps but that would cost a lot of time.

thanks for the offer curt but if got one german buddie who's going to sell me the complete electronics of a 722 with broken powersupply for 10€ + 10€ shipping. if i don't find the error i'll take it from him.

other question, the projector uses TAC3 lenses now, would HD6 enhance the sharpness significantly ?

next thing to do is to solder my sync stripper to connect a Scart DVD Player via RGBHV, to get max. input quality.