CurtPalme.com Home Theater Forum

poen · Joined: 21 Dec 2012 Posts: 51

Dear all,

Recently got a Sony 1292 with a v1.3 Moome card connected to my HTPC and absolutely loved the picture- the fact it's not perfect but yet so good for something ~25 years old makes me love the thing.

Since I have the device (about 2 months now) I noticed a problem with the red tube- it would often shake from left to right, changing its own position settings all the time- it would bounce 5-10 cm from left to right and right to left. After a while I connected it to a difference source, directly to the graphics card of my computer instead of pass through from the AMP. For some reason the shaky-red stopped.

After a while I decided to open up the back of the projector while the projector was running to clean out some dust- immediately the red started to dance from left to right once again, making me realize the source had no influence on it after all. The weird thing was however that when I would lift the cover, basically no metal touching between the body of the device and the 'hood' the red would be 100% stable, once I would drop the cover/hood it would start dancing again. I initially 'fixed' it by placing some plastic stuff between the metal so it would not touch, this improved it but left me with a worse calibration.

I got a bit frustrated and started to fiddle around, moving the lid up en down, the red would start to get worse, shifting 20-30cm right back to center before the projector would completely shut down leaving me with Error 08 and an occasional Error 02 when I try to start it up again. 90% Error 08 when I start it up now.

I did a bit of my own research, but haven't gotten to a fix yet.

Error 08 = V-stop
Error 02 = H-stop, 115v down

Some say its caused by the signal/image to be too close to the edge of the tube, this could definitely be the case with my RED tube as it was moving really far- and perhaps too far to one side- I might have kicked it against the edge or even over if that is possible.

I wonder therefore- and I really hope someone here is able to help me out on this getting the thing back alive what I could do to find out / fixing this problem, I want to give it another life.

Is there a way perhaps to 'reset' the board, reset the position of the RED tube- perhaps its stuck on a position which is too close to the edge?

Any suggestion would be much appreciated, I am willing to try anything- if I need to take out board(s) to be sent somewhere to be repaired I would also be willing to do this.

Trying my luck out here, thanks for reading!

gjaky · Joined: 05 Jun 2010 Posts: 2802 Location: Budapest, Hungary

I'd think a loose contact along the red convergence line could do such symptoms. It can be anything: a corroded connector pin, or a bad solder joint. Where heat is generated (STK leads) or where mechanical stress is (connector pins) are the main suspects

poen · Joined: 21 Dec 2012 Posts: 51

gjaky · Joined: 05 Jun 2010 Posts: 2802 Location: Budapest, Hungary

There are the yokes on the tubes: Deflection yokes, convergence yokes (usualy built together with the deflection yokes), magnetic focus yokes and dynamic astigmatism yokes.

If the deflection would be flaky then all the tubes would be affected, the astigmatism yokes and focus yokes simply can't affect the picture the way you described, this leaves the convergence yokes as main suspects.

I don't know the 1292 specifically so you'd have to find out which board is doing the drive of the convergence yokes, and also which connector is for the convergence yoke. But I'd look around these areas first.

poen · Joined: 21 Dec 2012 Posts: 51

gjaky · Joined: 05 Jun 2010 Posts: 2802 Location: Budapest, Hungary

poen · Joined: 21 Dec 2012 Posts: 51

Apologies;)

I will find out which board and check all connectors- thanks.

poen · Joined: 21 Dec 2012 Posts: 51

Hi all,

After going deeper into the projector I found a big red cable out of it's 'socket' at the end of the red tube- I suppose where the tube gets its power. *See my attachments.

I am pretty sure this cable went out of its socket/hole when the projector was running.

After placing back the cable, projector unfortunately still says Error 08 Sad

Could something have broken when such cable is disconnected while running?

gjaky · Joined: 05 Jun 2010 Posts: 2802 Location: Budapest, Hungary

The red wire is for G2/Focusing, probably not related to your problem.
Seeing the pictures though, there is the grey yoke on the tube neck. There are two blue and red cables coming out, those are for the horizontal deflection, and there are the gray and white cables, those should be for the vertical deflection. A loose connection along that line (on any of the tube) would indicate an error code.

poen · Joined: 21 Dec 2012 Posts: 51

gjaky · Joined: 05 Jun 2010 Posts: 2802 Location: Budapest, Hungary

I don't think that removing the covers would help.

poen · Joined: 21 Dec 2012 Posts: 51

poen · Joined: 21 Dec 2012 Posts: 51

Several weeks passed, I replaced the PSU, and almost every internet board with the exception of the Y board.

The projector fired up, worked for 3-4 hours, and while working on setting the settings back to 128 horizontal and vertical the projector suddenly turned off, with a little bleed and some smoke smell from the PSU.. now back to Error 02:(

Any idea what could have caused this after almost replacing very board in the unit?