| Author |
Message |
Spiscean
Joined: 27 May 2009
Posts: 10
Location: Bay Point, CA
|
| Posted: Tue Jan 26, 2010 6:21 am Post subject: Sony VP-722 Blue Tube Issue? |
|
|
Have an unusually bright blue tube? Can anyone help me dignose the issue? I can get a clear Hatch pattern from all tubes but the Blue tube is just extremely bright as seen in the pic below.
| Description: |
|
| Filesize: |
58.51 KB |
| Viewed: |
2610 Time(s) |
|
_________________
KISS - Keep It Sweet and Simple!!!!
|
|
| Back to top |
|
 |
cmjohnson
Joined: 03 Apr 2006
Posts: 5180
Location: Buried under G90s
|
| Posted: Tue Jan 26, 2010 11:51 am Post subject: |
|
|
G2 problem. Or a shorted tube. I'm thinking probably something on the neck card.
Those take SD-130 tubes but the PJ is strictly video only, not capable of even 480p.
I had one of those as my first PJ. It served me very well until I upgraded to a Marquee.
I even ran it on an 8 foot wide screen and had enough height adjustment available to set it to 16:9 mode,
and frankly it was a pretty nice picture even if it was just plain old NTSC. Actually, it delivered a better NTSC
picture than a Marquee at the same (standard definition NTSC) resolution, because its CRT spot size is
optimal for that. The Marquee spot size is far too small for NTSC unless you defocus the unit somewhat,
which goes against my principles. Better focus should always give a better picture.
Those units aren't worth very much these days. You can probably get a complete second unit for 100 bucks or less,
and have fun swapping parts.
CJ
Last edited by cmjohnson on Tue Jan 26, 2010 10:40 pm; edited 1 time in total
|
|
| Back to top |
|
|
Spiscean
Joined: 27 May 2009
Posts: 10
Location: Bay Point, CA
|
| Posted: Tue Jan 26, 2010 5:39 pm Post subject: Thanks CJ |
|
|
Thank you it give me somewhere to start looking. I picked this up for $50 with the problem. I am new to PJ but not to electronics. It should give me some thing to wet my hands in PJ. I got the manual so i will start looking around. Any idea where I can get one for parts?
_________________
KISS - Keep It Sweet and Simple!!!!
|
|
| Back to top |
|
|
Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
|
| Posted: Tue Jan 26, 2010 7:40 pm Post subject: |
|
|
I've got a bunch of boards that you can have for the cost of shipping. I think the convergence board is toast, but the rest should be OK. Keep in mind that this set dates from 1984 or so, so you probably have a bunch of flaky things in that set, but if it was used little, chances are it will keep going.
SHorted SD130 tubes are REALLY rare, I'd put the green CRT socket onto the blue tube. I'll bet your problem is there.
|
|
| Back to top |
|
|
Spiscean
Joined: 27 May 2009
Posts: 10
Location: Bay Point, CA
|
| Posted: Wed Jan 27, 2010 12:01 am Post subject: Shipping cost? |
|
|
Shipping for the boards you mentioned here.
Thanks
Sunny
| Curt Palme wrote: | I've got a bunch of boards that you can have for the cost of shipping. I think the convergence board is toast, but the rest should be OK. Keep in mind that this set dates from 1984 or so, so you probably have a bunch of flaky things in that set, but if it was used little, chances are it will keep going.
SHorted SD130 tubes are REALLY rare, I'd put the green CRT socket onto the blue tube. I'll bet your problem is there. |
_________________
KISS - Keep It Sweet and Simple!!!!
|
|
| Back to top |
|
|
|
|
