CurtPalme.com Home Theater Forum

[Zebu Fellenz]

This is with the G70 that I recentally picked up.

The projector was working fine last night but now when I power it up I get error code 33 and the projector shuts down. It said in the manual that this is a HV errror.

I unplugged the HVPS from the splitter and capped the ends of the lines and it powered up fine w/o any errors. I also ga sort of hissing from the splitter. Does this sound like a HV leak

Thanks,

Erik

[Curt Palme]

I think you have a tube that's shorted or a CRT socket that's overloading the HV. I'd connect the red tube back up via the HV lead and see if it works. HTen the green, then the blue. I have not had a 33 error code here before. It could mean your PA board is bad though.

[Curt Palme]

I think you have a tube that's shorted or a CRT socket that's overloading the HV. I'd connect the red tube back up via the HV lead and see if it works. HTen the green, then the blue. I have not had a 33 error code here before. It could mean your PA board is bad though.

[Zebu Fellenz]

Thanks Curt,

Poking around this morning I uncovered the problem, The HV line that runs from the HVPS to the splitter was loose on the PS end and the connections on the tubes to the splitter was not the best. Reconnected all and it lives again.

Thanks,

Erik

[oliverg]

Man you must be SO happy that you found the problem!!

[Zebu Fellenz]

Yeah I am,

All seems to be well now the projector just ran for eight hours without any problems whatsoever.

[Zebu Fellenz]

This problem has returned. I went back and tightened up the connections at the splitter and all was well again. I'm curious if any other G70 owner has seen this problem?

Luckly the problem is easy to fix but I don't like the feeling of loose HV in my G70 zapping boards. Has anyone had a splitter go bad?

[AnalogRocks]

Glue it into place. ???

[AnalogRocks]

Glue it into place. ???

[draganm]

[doubleuf]

[doubleuf]

I manage to find the High Voltage DC block and there is a HV line connected to the High Voltage DC Block (4 lines) I think this is the splitter, I check all four HV cables and they look pretty secure. But they erorr 33 is still there! Any suggestions are appreciated.

WF

[Curt Palme]

I've never had a G70 HV block fail, but there's always a first time.

I also have not had a 33 error code, but the Pa board controls the HV, so that's where your problem might be.

FYI, the Sony error codes are not always correct. I repaired a G90 in Whistler, BC yesterday that would shut down intermittently. It pulsed in an H direction, then would shut down. Came up with an H stop error code. Swapped the H board, nothing. Swapped the CPU and video input boards, nothing. Swapped the power supply and that was it.

I'd suspect the HV splitter pack or the PA board in this case though. I can test them here if you want.

[Curt Palme]

I've never had a G70 HV block fail, but there's always a first time.

I also have not had a 33 error code, but the Pa board controls the HV, so that's where your problem might be.

FYI, the Sony error codes are not always correct. I repaired a G90 in Whistler, BC yesterday that would shut down intermittently. It pulsed in an H direction, then would shut down. Came up with an H stop error code. Swapped the H board, nothing. Swapped the CPU and video input boards, nothing. Swapped the power supply and that was it.

I'd suspect the HV splitter pack or the PA board in this case though. I can test them here if you want.

[Zebu Fellenz]

When I was getting the error, seems to happen about once a year I always fixed it by pulling the HV lines out of the splitter and pushing them back in HARD. Sometimes I would have to reconnect the lines a few times before the error would go away.

Good luck fixing it.

Erik

[Curt Palme]

Sounds like you have a different problem. I've worked on 100s of Sonys, and have never had that problem. I'll bet the flexing of the leads shifted something else in the set to get it to temporarily cure itself.

[Curt Palme]

Sounds like you have a different problem. I've worked on 100s of Sonys, and have never had that problem. I'll bet the flexing of the leads shifted something else in the set to get it to temporarily cure itself.

[CIR Engineering]

[Curt Palme]

I'd have to look at the set still in my truck for board numbers, not up to speed with the various G90 board #s.

I changed the main LVPS that drives most of the set. THe set would usually power up, but with no video or menus, just a dimply lit blank screen. You'd see the raster pulse width-wise, the n eventually it would collapse and the set would shut down well before the raster would collapse into a line. Strange how well protected the set was up in Whistler, but I now know of two sets that had raster collapse with a phosphor burn on each tube.

The H board that I changed first that's fine is the one that the blue and red yoke wires go to, the H output board. It was OK.

I was also called on this set for a small H whining sound, that I attributed to a singing transformer in the H or power supply section. THey called 2 years ago, but opted to live with it since I had no spare G90 parts at the time. Since I did the SMPS and H board swap, I didn't hear any singing from the set, so I think I cured that as well.

THe tab for 3 hours on site and travel and parts was $1500, and they didn't have to pull the set down. I'd guess the bill would have been double or triple that if they would have had to send it to Sony in California.

[Curt Palme]

I'd have to look at the set still in my truck for board numbers, not up to speed with the various G90 board #s.

I changed the main LVPS that drives most of the set. THe set would usually power up, but with no video or menus, just a dimply lit blank screen. You'd see the raster pulse width-wise, the n eventually it would collapse and the set would shut down well before the raster would collapse into a line. Strange how well protected the set was up in Whistler, but I now know of two sets that had raster collapse with a phosphor burn on each tube.

The H board that I changed first that's fine is the one that the blue and red yoke wires go to, the H output board. It was OK.

I was also called on this set for a small H whining sound, that I attributed to a singing transformer in the H or power supply section. THey called 2 years ago, but opted to live with it since I had no spare G90 parts at the time. Since I did the SMPS and H board swap, I didn't hear any singing from the set, so I think I cured that as well.

THe tab for 3 hours on site and travel and parts was $1500, and they didn't have to pull the set down. I'd guess the bill would have been double or triple that if they would have had to send it to Sony in California.

[doubleuf]

[Curt Palme]

They should come out without having to take the set off the ceiling. THe PA board pops out the front, and you should be able to access the HV splitter screws from upside down as well.'

Send them in using these instructions:

http://www.curtpalme.com/ContactUs_Shipping_Parts.shtm

[Curt Palme]

They should come out without having to take the set off the ceiling. THe PA board pops out the front, and you should be able to access the HV splitter screws from upside down as well.'

Send them in using these instructions:

http://www.curtpalme.com/ContactUs_Shipping_Parts.shtm

[doubleuf]

[Curt Palme]

You can try that if you want. Only disconnect the RGB HV leads going to the tubes, leave the one coming from the HV transformers connected to the splitter, otherwise you'll have a one time smoke and light show.

[Curt Palme]

You can try that if you want. Only disconnect the RGB HV leads going to the tubes, leave the one coming from the HV transformers connected to the splitter, otherwise you'll have a one time smoke and light show.

[doubleuf]