| Author |
Message |
racerxnet
Joined: 20 Jun 2007
Posts: 362
Location: Illinois
|
| Posted: Tue Aug 22, 2017 1:43 am Post subject: |
|
|
Maybe you need a null modem cable instead of a regular one. That has been the case when I have flashed chips.
https://en.wikipedia.org/wiki/Null_modem
Mak
|
|
| Back to top |
|
 |
ElTopo
Joined: 07 Nov 2006
Posts: 1640
|
| Posted: Tue Aug 22, 2017 4:51 pm Post subject: |
|
|
I've ordered a null modem adapter. Let's see if that works.
thanks
_________________
Barco Cine 9 the one and only
|
|
| Back to top |
|
|
jbltecnicspro
Joined: 23 Apr 2016
Posts: 512
|
| Posted: Tue Aug 22, 2017 5:41 pm Post subject: |
|
|
| ElTopo wrote: | I've ordered a null modem adapter. Let's see if that works.
thanks |
I would think so.
|
|
| Back to top |
|
|
ElTopo
Joined: 07 Nov 2006
Posts: 1640
|
| Posted: Thu Aug 24, 2017 10:14 am Post subject: |
|
|
I've tried several cables, adapters and so on....
No connection at all.
_________________
Barco Cine 9 the one and only
|
|
| Back to top |
|
|
cmjohnson
Joined: 03 Apr 2006
Posts: 5180
Location: Buried under G90s
|
| Posted: Thu Aug 24, 2017 12:41 pm Post subject: |
|
|
Have you checked with Craig on this? I'm not anywhere near enough of an expert on the G90 to be able to definitively help you here,
but I BELIEVE---and I could be wrong---that internal menu settings affect the mode of operation of the serial port. Set it wrong and the port is not active and you can't control the projector over serial or even communicate with it.
I have a copy of the installer's manual on CD. I'll dig it out and see what I can find in it that might help you.
|
|
| Back to top |
|
|
gjaky
Joined: 05 Jun 2010
Posts: 2802
Location: Budapest, Hungary
|
| Posted: Thu Aug 24, 2017 3:38 pm Post subject: |
|
|
| ElTopo wrote: | Sure you can but where is the fun  |
I guess now you have loads of fun... 
The real fun starts when you try to replace the depleted battery inside the DALLAS chip, like here. Of course this is a different chip but you can guess the basic idea is the same.
_________________
projectors in the past : NEC 6-9PG xtra, Electrohome Marquee 6-7500, NEC XG 1351 LC ( with super modified Electrohome VNB neckboard !!!)
current: VDC Marquee 9500LC
The MOD: VNB-DB, VIM-DB
|
|
| Back to top |
|
|
cmjohnson
Joined: 03 Apr 2006
Posts: 5180
Location: Buried under G90s
|
| Posted: Thu Aug 24, 2017 4:27 pm Post subject: |
|
|
|
It'd be nice to find a compatible and truly non-volatile memory chip to replace that Dallas chip. But I'm not sure such a thing exists.
|
|
| Back to top |
|
|
jbltecnicspro
Joined: 23 Apr 2016
Posts: 512
|
| Posted: Thu Aug 24, 2017 5:03 pm Post subject: |
|
|
|
So here's a dumb question - why did Sony put this chip in the G90 and not the G70? And better yet, why didn't the G90 just have the non-volatile chip like the G70's do? Were they just expecting us not to continue to use them into the future?
|
|
| Back to top |
|
|
jbltecnicspro
Joined: 23 Apr 2016
Posts: 512
|
| Posted: Thu Aug 24, 2017 5:04 pm Post subject: |
|
|
| ElTopo wrote: | I've tried several cables, adapters and so on....
No connection at all. |
I second what Chris says. Treat it like a computer and go into the Service Mode menus and see if there's anything that you can change pertaining to the serial port.
|
|
| Back to top |
|
|
ElTopo
Joined: 07 Nov 2006
Posts: 1640
|
| Posted: Thu Aug 24, 2017 5:13 pm Post subject: |
|
|
At present the G90 is in error code 11 which means standby no menu at all.
_________________
Barco Cine 9 the one and only
|
|
| Back to top |
|
|
gjaky
Joined: 05 Jun 2010
Posts: 2802
Location: Budapest, Hungary
|
| Posted: Thu Aug 24, 2017 7:41 pm Post subject: |
|
|
| cmjohnson wrote: | | It'd be nice to find a compatible and truly non-volatile memory chip to replace that Dallas chip. But I'm not sure such a thing exists. |
What for? If you put a new Dallas chip in you are good to go for the next 10-15 years, then changing -again- the Dallas chip will be the least concern 
_________________
projectors in the past : NEC 6-9PG xtra, Electrohome Marquee 6-7500, NEC XG 1351 LC ( with super modified Electrohome VNB neckboard !!!)
current: VDC Marquee 9500LC
The MOD: VNB-DB, VIM-DB
|
|
| Back to top |
|
|
jbltecnicspro
Joined: 23 Apr 2016
Posts: 512
|
| Posted: Thu Aug 24, 2017 9:14 pm Post subject: |
|
|
| ElTopo wrote: | | At present the G90 is in error code 11 which means standby no menu at all. |
Ah okay - sorry about that.
|
|
| Back to top |
|
|
ElTopo
Joined: 07 Nov 2006
Posts: 1640
|
| Posted: Sat Aug 26, 2017 12:34 pm Post subject: |
|
|
As i'm not able to flush the firmware i'll be parting out 2 x Sony G90.
Posting soon in the buy/sell section with prices.
PM me if interested.
_________________
Barco Cine 9 the one and only
|
|
| Back to top |
|
|
cmjohnson
Joined: 03 Apr 2006
Posts: 5180
Location: Buried under G90s
|
| Posted: Sat Aug 26, 2017 3:39 pm Post subject: |
|
|
Before you do that, error 11 is a memory loss error. Try putting the old chip back in.
Heck, I'll even help you out here by sending one of my chips to Craig and having him copy it to a new chip and send the new chip
to you. The result is there will be two G90s that have the same serial number in their brain, but who cares?
No sense in parting out the units when all they need is good firmware.
|
|
| Back to top |
|
|
ElTopo
Joined: 07 Nov 2006
Posts: 1640
|
| Posted: Sat Aug 26, 2017 7:39 pm Post subject: |
|
|
The G90 does the same with the old Dallas chip -> error 11.
Might init with S202 bring something ?
_________________
Barco Cine 9 the one and only
|
|
| Back to top |
|
|
cmjohnson
Joined: 03 Apr 2006
Posts: 5180
Location: Buried under G90s
|
| Posted: Sat Aug 26, 2017 7:47 pm Post subject: |
|
|
You have two G90s? You could transfer the memory chip from the good one to the other and see what happens.
A memory chip that has a truly exhausted battery will have no data in it.
|
|
| Back to top |
|
|
ElTopo
Joined: 07 Nov 2006
Posts: 1640
|
| Posted: Sat Aug 26, 2017 8:02 pm Post subject: |
|
|
Yep i have two.
1st one with error 11, 2nd one with error 60.
Both with replaced Dallas chips but still the same errors.
I even swapped the YA board from one to the other and the error code moves.
That means one YA has a firmware issue (my opinion) and the other maybe a bad IC421.
_________________
Barco Cine 9 the one and only
|
|
| Back to top |
|
|
gjaky
Joined: 05 Jun 2010
Posts: 2802
Location: Budapest, Hungary
|
| Posted: Sat Aug 26, 2017 8:08 pm Post subject: |
|
|
Here error 60 is discussed, since in your case it follows the YA board it could be a short on the board, or have a bent leg as mentioned.
_________________
projectors in the past : NEC 6-9PG xtra, Electrohome Marquee 6-7500, NEC XG 1351 LC ( with super modified Electrohome VNB neckboard !!!)
current: VDC Marquee 9500LC
The MOD: VNB-DB, VIM-DB
|
|
| Back to top |
|
|
cmjohnson
Joined: 03 Apr 2006
Posts: 5180
Location: Buried under G90s
|
| Posted: Sat Aug 26, 2017 8:35 pm Post subject: |
|
|
IC421 problems don't throw error codes. Instead, they show up as some sort of instability in the operation of the projector.
IC421 functions as the controller for the DACs that control every adjustable picture parameter. So, depending on the specific failure of IC421, you may have such problems as a refusal to focus but only on one specific channel and one specific zone. Or you can't adjust a specific convergence zone on one tube. Or the size is wrong, or a geometery problem.
|
|
| Back to top |
|
|
ElTopo
Joined: 07 Nov 2006
Posts: 1640
|
| Posted: Sat Aug 26, 2017 8:45 pm Post subject: |
|
|
I've read those threads thanks guys.
Where are those power supplies located just to be sure they are not dead on the one with error 60 ?!
_________________
Barco Cine 9 the one and only
|
|
| Back to top |
|
|
|
|
