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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6326
Location: Australia
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| Posted: Tue Jan 20, 2015 6:54 am Post subject: |
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Ive got 3 or 4 here. One doesnt work at all, one is perfectly fine, and the others im not sure, been a while since i tested those.
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Barco Cine 9, ,Sony VPL570ES 4K SXRD, 135" OZ Theatre Majestic 16:9 screen, Denon X6700in preamp mode, 2x 7ch Tonewinner amps, 2x Tonewinner 15" subs, 2x 10" subs, 7.2.6...
RUNCO DTV991 LC ( NEC XG 852 LC ) 100" 4:3 screen, H/K AVR 7.1...
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Rattanee
Joined: 18 Jan 2015
Posts: 193
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| Posted: Wed Jan 21, 2015 6:30 am Post subject: |
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It looks like I can get the board that was in there, but it is faulty, apparently it has corrupted data in the eproms. Does anyone have the ROM contents in binary or are they available online somewhere? I can rebuild him... I have the technology .... 
_________________
Watching atm: Barco Cine 8 Onyx (HD-18 modded)
Working on atm: Barco 808s --> Cine8 Onyx conversion
Retired/shelved units: 2xNEC 9PG, 2xNEC 6PG Plus, Barco Vision 600, Sony VPH-1021
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Wed Jan 21, 2015 2:51 pm Post subject: |
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I have repaired a lot of point boards and never have I seen a corrupted data problem. What is the board doing or not doing?
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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6326
Location: Australia
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| Posted: Wed Jan 21, 2015 3:56 pm Post subject: |
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I could get it for you, but i doubt thats the issue.
_________________
Barco Cine 9, ,Sony VPL570ES 4K SXRD, 135" OZ Theatre Majestic 16:9 screen, Denon X6700in preamp mode, 2x 7ch Tonewinner amps, 2x Tonewinner 15" subs, 2x 10" subs, 7.2.6...
RUNCO DTV991 LC ( NEC XG 852 LC ) 100" 4:3 screen, H/K AVR 7.1...
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gjaky
Joined: 05 Jun 2010
Posts: 2802
Location: Budapest, Hungary
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| Posted: Wed Jan 21, 2015 5:48 pm Post subject: |
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| macgyver655 wrote: | | I have repaired a lot of point boards and never have I seen a corrupted data problem. What is the board doing or not doing? |
I have seen that board (not) working. It basically splits the vertical lines, and swaps the horizontal lines in various ways, the cursor is barely noticeable, setting the actual point moves the convergence on other points and not where the cursor is.
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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
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Wed Jan 21, 2015 5:51 pm Post subject: |
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| gjaky wrote: | | macgyver655 wrote: | | I have repaired a lot of point boards and never have I seen a corrupted data problem. What is the board doing or not doing? |
I have seen that board (not) working. It basically splits the vertical lines, and swaps the horizontal lines in various ways, the cursor is barely noticeable, setting the actual point moves the convergence on other points and not where the cursor is. |
Yes, I have seen that problem. It was usually a cap at 1 edge of the board that leaks and burns a couple traces. The cap has to be replaced and the traces have to be repaired with wires. I have pictures of 1 that I had repaired some years ago somewhere.
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Wed Jan 21, 2015 5:54 pm Post subject: |
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| gjaky wrote: | | macgyver655 wrote: | | I have repaired a lot of point boards and never have I seen a corrupted data problem. What is the board doing or not doing? |
I have seen that board (not) working. It basically splits the vertical lines, and swaps the horizontal lines in various ways, the cursor is barely noticeable, setting the actual point moves the convergence on other points and not where the cursor is. |
If I remember that problem, where ever you have the cursor placed the lines app. 3 to 4 over to the right would move instead of where the cursor was. Along with the distortion else where.
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Rattanee
Joined: 18 Jan 2015
Posts: 193
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| Posted: Thu Jan 22, 2015 5:16 am Post subject: |
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I've dealt with tons of eproms, and I have to admit I don't remember any eproms newer (larger in capacity) then the 27c1001 series actually having failed, unless they were OTP or mishandled...
I don't actually have the board with me yet, I'll have to visually inspect it myself, but I know that they tried to read the eproms, possibly even to re-write them, so I'm not at all certain that there will be any usable data in them.
I usually only deal with leaking caps on old CRT monitors, not on multilayer boards. There they usually don't cause any damage as those are generally single sided boards. I just clean them up with mild detergent and warm water with a paintbrush. What's the experience on these suckers though... if I find any leaking, will a spin in the dishwasher solve things, or should I just stick to the paintbrush method? Fingers crossed I only find dry caps not leaking ones.
_________________
Watching atm: Barco Cine 8 Onyx (HD-18 modded)
Working on atm: Barco 808s --> Cine8 Onyx conversion
Retired/shelved units: 2xNEC 9PG, 2xNEC 6PG Plus, Barco Vision 600, Sony VPH-1021
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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6326
Location: Australia
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| Posted: Thu Jan 22, 2015 5:47 am Post subject: |
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You wont find dry ones, its usually the 16v 100uF capacitors on those boards that fail, and they leak like a f***ed fridge.
_________________
Barco Cine 9, ,Sony VPL570ES 4K SXRD, 135" OZ Theatre Majestic 16:9 screen, Denon X6700in preamp mode, 2x 7ch Tonewinner amps, 2x Tonewinner 15" subs, 2x 10" subs, 7.2.6...
RUNCO DTV991 LC ( NEC XG 852 LC ) 100" 4:3 screen, H/K AVR 7.1...
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Rattanee
Joined: 18 Jan 2015
Posts: 193
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| Posted: Sun Jan 25, 2015 2:40 pm Post subject: |
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And leak like all hell they did! I got further video errors the other day, so I buckled down then and there and ordered a full cap kit for the entire set. Yesterday I re-did just the System and Wave boards, pulling quite a few that were leaking... all new caps, immediately fixed some of my problems. However, I'm starting on the deflection board now, and this one's got me a bit stumped.... tons of stuff soldered onto the bottom of the board.... could someone snap a pic of the bottom of their deflection PCB for me please? Google turned up nothing... and it'd be nice to know what's supposed to be there and what isn't....
_________________
Watching atm: Barco Cine 8 Onyx (HD-18 modded)
Working on atm: Barco 808s --> Cine8 Onyx conversion
Retired/shelved units: 2xNEC 9PG, 2xNEC 6PG Plus, Barco Vision 600, Sony VPH-1021
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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6326
Location: Australia
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| Posted: Sun Jan 25, 2015 2:46 pm Post subject: |
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Leave whatever is there as it is, that is normal.
Replace the capacitors on the top and remove them by cutting the legs
_________________
Barco Cine 9, ,Sony VPL570ES 4K SXRD, 135" OZ Theatre Majestic 16:9 screen, Denon X6700in preamp mode, 2x 7ch Tonewinner amps, 2x Tonewinner 15" subs, 2x 10" subs, 7.2.6...
RUNCO DTV991 LC ( NEC XG 852 LC ) 100" 4:3 screen, H/K AVR 7.1...
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Rattanee
Joined: 18 Jan 2015
Posts: 193
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| Posted: Sun Jan 25, 2015 3:06 pm Post subject: |
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| CasetheCorvetteman wrote: | Leave whatever is there as it is, that is normal.
Replace the capacitors on the top and remove them by cutting the legs |
I suspected as such as they're japanese made components on the bottom, but the way that they are attached is... well... less then japanese in quality But I've just been checking the schematics and the components hacked on (at least as far as the v-posi sub board goes) seem to be in the schemas even, apparently they just forgot to lay them out on the pcbs hehh...
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Rattanee
Joined: 18 Jan 2015
Posts: 193
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| Posted: Sun Jan 25, 2015 3:10 pm Post subject: |
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Oh jolly good.... it's a good thing I started on this as well... first cap I pulled, the 2200u 50v cap is also leaking all over the place... going to be a smelly afternoon it seems... damn things stink like hell...
_________________
Watching atm: Barco Cine 8 Onyx (HD-18 modded)
Working on atm: Barco 808s --> Cine8 Onyx conversion
Retired/shelved units: 2xNEC 9PG, 2xNEC 6PG Plus, Barco Vision 600, Sony VPH-1021
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Sun Jan 25, 2015 3:26 pm Post subject: |
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Smells like some good beaver..... 
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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6326
Location: Australia
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| Posted: Sun Jan 25, 2015 8:28 pm Post subject: |
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| macgyver655 wrote: | | Smells like some good beaver..... |
Not sure where youve been finding yours then, but im glad its you that found them and not me!
_________________
Barco Cine 9, ,Sony VPL570ES 4K SXRD, 135" OZ Theatre Majestic 16:9 screen, Denon X6700in preamp mode, 2x 7ch Tonewinner amps, 2x Tonewinner 15" subs, 2x 10" subs, 7.2.6...
RUNCO DTV991 LC ( NEC XG 852 LC ) 100" 4:3 screen, H/K AVR 7.1...
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Rattanee
Joined: 18 Jan 2015
Posts: 193
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| Posted: Sun Jan 25, 2015 10:01 pm Post subject: |
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Well, update time. The Deflection board was more then a little pain in the ass, but I got it done. Gabor had already replaced most of the caps on the board, but I went 'screw it' and replaced all of them anyway, which was a good thing too. One of the little caps he installed, had already pooped itself. The difference about it being a chinese cap being that the e-lyte that poured out was already dry.
Anyways, with the board being done, I couldn't stop myself from seeing what changes there may be. To my horror, turning the PJ on for the first time gave me a horribly mangled and jumping picture, much like earlier before I recapped the wave board. Except this time the crts would turn on and off randomly as well. What the heck? I turned it off quickly, then after eyeing the board for any connectors I may have missed, I turned it on again. I did not touch anything, just looked. The image came up rock solid... no flashing, no distortion... what the heck...
Testing from composite input, image is rock solid, image positioning works great, and it no longer starts dropping the horizontal sync when the position is below -90%. That's a good sign!
Switching to PC input, 1280x768, the position control is still not quite right, but at least the 'tearing' of the upper quarter of the image seems to have stopped. Image still moves in uneven steps, jumping quite a bit at certain points.
I'm going to dig into the manual now, but one thing's for sure... edge focus does -nothing-... electronic that is, mechanical works of course 
Now that I'm done with most of the accessible boards, it's time to dig in further... I'm thinking convergence board tomorrow as at least I can get to that without completely disassembling the rear of this beast....
Also... beaver? We talking about the relatively small furry things?
_________________
Watching atm: Barco Cine 8 Onyx (HD-18 modded)
Working on atm: Barco 808s --> Cine8 Onyx conversion
Retired/shelved units: 2xNEC 9PG, 2xNEC 6PG Plus, Barco Vision 600, Sony VPH-1021
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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6326
Location: Australia
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| Posted: Sun Jan 25, 2015 10:44 pm Post subject: |
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Clean the pots on the def board and calibrate those.
The focus board is down beside the convergence board.
Did you replace the huge low ESR caps or leave those alone?
_________________
Barco Cine 9, ,Sony VPL570ES 4K SXRD, 135" OZ Theatre Majestic 16:9 screen, Denon X6700in preamp mode, 2x 7ch Tonewinner amps, 2x Tonewinner 15" subs, 2x 10" subs, 7.2.6...
RUNCO DTV991 LC ( NEC XG 852 LC ) 100" 4:3 screen, H/K AVR 7.1...
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Rattanee
Joined: 18 Jan 2015
Posts: 193
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| Posted: Sun Jan 25, 2015 10:52 pm Post subject: |
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| CasetheCorvetteman wrote: | Clean the pots on the def board and calibrate those.
The focus board is down beside the convergence board.
Did you replace the huge low ESR caps or leave those alone? |
Yep I just checked the manual to see what board is down there with the convergence board. Those two will be up next tomorrow afternoon if I get home in a timely manner (long work-trip tomorrow... wohoo...not). The manual says I need to remove a CRT to access them though... really? Cause in that case I might as well just start taking the whole thing apart instead of doing the modules one after the other...
If you mean the pair of 330uf (or was that 33?) High Ripple rated caps, no, I left those alone. Couldn't find a proper replacement locally. I'll replace them when I order from Digikey for the mixing board project I'm involved with. Which will probably take a little while... but I doubt those could cause such a wonky behavior on powerup... or could they?
I'll calibrate the def board once I finish all the caps and make sure the power supply is adjusted correctly as well. That reminds me I should probably check the manual for some info on that too... if all goes well I might just be able to finish this project by the end of the week... fingers crossed
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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6326
Location: Australia
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| Posted: Sun Jan 25, 2015 11:36 pm Post subject: |
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You shouldnt need to do the big ones i wouldnt think.
No you wont need to remove the tubes.
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Barco Cine 9, ,Sony VPL570ES 4K SXRD, 135" OZ Theatre Majestic 16:9 screen, Denon X6700in preamp mode, 2x 7ch Tonewinner amps, 2x Tonewinner 15" subs, 2x 10" subs, 7.2.6...
RUNCO DTV991 LC ( NEC XG 852 LC ) 100" 4:3 screen, H/K AVR 7.1...
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Rattanee
Joined: 18 Jan 2015
Posts: 193
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| Posted: Mon Jan 26, 2015 9:47 pm Post subject: |
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While I'm going to spend the rest of the day passed out due to a damn too long trip today that just reminded me why I hate dealing with people sometimes,... Are there any tuning options for the PG9? Like I read something about changing the optics on some projectors for better ones or somesuch... is there something like that that's already been tested out, or is it a "feel free to experiment" topic ? Like if someone figured a way to add LC lenses to these suckers... that'd be awesome
I'm tired and probably talking crap though >.< Board repair... tomorrow....
_________________
Watching atm: Barco Cine 8 Onyx (HD-18 modded)
Working on atm: Barco 808s --> Cine8 Onyx conversion
Retired/shelved units: 2xNEC 9PG, 2xNEC 6PG Plus, Barco Vision 600, Sony VPH-1021
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