CurtPalme.com Home Theater Forum

Joshua Cadmium · Joined: 01 Dec 2017 Posts: 3

Hello!

I purchased a working G70 a few years ago that I've had stored in my garage until I decided what I wanted to do with it. I just tried to turn it on today and was getting a constant error code of 29. Any suggestions on how to proceed?

**AnalogRocks** · Posted: Fri Dec 01, 2017 5:38 am Post subject:

Hello and welcome to the forum. Code 29 is "abnormality of the power line on the B board"
see error codes here:
http://www.curtpalme.com/docs/SonyG70_Error_Codes.pdf

Since it's been in a garage I would say open it up and get some contact cleaner going on it. Deoxit is one of the best. We swear by it here.
Pull electrical connectors off and clean them reseat them multiple times and try firing it up again. Once you get it going leave it on for at least an hour just idling no signal just to let the capaciors re-form and the electronics warm up.

Then you can try putting a signal to it. See how it looks. Try a lower res signal to begin with like 800x600 or 1024x768@60Hz. Don't jump to 1080p right away. Less stress at first.

Joshua Cadmium · Joined: 01 Dec 2017 Posts: 3

Thanks so much for the info!

I ended up opening it up today and popped out the main boards and reseated them. For the B board, I did that multiple times as well as sprayed deoxit on both sides of the connection. I turned it on again (after waiting a little while for the deoxit to try) and I still got the Code 29.

When I was looking at it, I saw that the two groups of connections to the B board from the far left hand front area had been draped over the B board instead of running through the side hole. Those connections had metal braid around them in some areas, without anything covering that braid. They had been running near the board itself and I'm wondering if that braid could have bridged a connection somewhere on the board.

Also, the machine had been laying upside down, so today I turned it right side up and switched the connectors and flipped the dip switch for floor projection. I doubt that made a difference, but I thought I would mention it.

At this point I think I'm going to get rid of it as is, but let me know if anyone recommends anything else.

Thanks again!

**AnalogRocks** · Posted: Mon Dec 04, 2017 4:55 am Post subject: