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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Wed Mar 11, 2009 6:40 pm Post subject: WHATS THAT!!!!!! A trailer load of flat panels. |
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Well this is today's haul. Saw at least a few broken displays so I'll have spare parts laying around. Should be able to get a few working sets anyways. The price was definitely right. Suppose to be more panels to come. 
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Wed Mar 11, 2009 6:41 pm Post subject: |
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NICE! I'd like a local haul like that, I wanna try repairing them.
YOU SUCK!
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Wed Mar 11, 2009 6:52 pm Post subject: |
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They are a lot of fun to work on. But I have to say this.......having already done a bunch of plasmas and LCD's flat panels, then having them set up side by side looking at comparisons....I still dont really care for them. I also just recently got a JVC, 48" rear projection, CRT based wide screen. Had to throw about 20.00 in parts at it and I sit down to watch it and I'm just amazed at the picture quality. That one for sure is staying here...... I just cant stay away from CRT technology....I get sucked right into the picture....but thats just me I guess.....
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kal
Forum Administrator
Joined: 06 Mar 2006
Posts: 18114
Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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drice1234
Joined: 07 Oct 2006
Posts: 1309
Location: Allen, Texas
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| Posted: Wed Mar 11, 2009 7:46 pm Post subject: |
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I would as well like to know if there is a common failure point on these. There is an e-bay store called "sold broken" that sells all store returned merchandise. Their warehouse is only a few miles from me so I can pick items up for only a few dollars. They are always selling broken LCD's that go for a very low price since no one wants to pay the high shipping cost. I would not mind picking a few up if the repairs are not on a board level.
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perisoft
Joined: 29 Aug 2007
Posts: 2920
Location: Ithaca, NY
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| Posted: Wed Mar 11, 2009 8:20 pm Post subject: |
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I've got a couple of older Fujitsu plasmas I troubleshot (heh) last year. Part-swapped between them and got a working one, but it eventually went south with the same problem (-170v rail that kept the plasma pre-charged went away). Fun to work on, but you can really get wiggled if you place a finger wrong in there...
I did really like the color once I tweaked on it a bit (at least, as long as I didn't look at anything under 15IRE). There's something satisfying about emissive displays, I guess.
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Wed Mar 11, 2009 8:28 pm Post subject: |
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Not so much power supplies from what I've seen but more so the driver boards for the display and the Y-SUS board that controls the drivers ( such as the other threads on here about the Y-SUS board problems) and a Z-SUS board. These seem to be the common failure boards and most guys replace the whole board. How ever the whole boards can be expensive, new or used. The ones I've done so far though, I trouble shot to component level and repaired with minor parts. So I cant say that there is really a common failure part, but I can say that a lot of different makes use the same LG panels and boards, so boards from one make will work in another make.
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perisoft
Joined: 29 Aug 2007
Posts: 2920
Location: Ithaca, NY
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| Posted: Wed Mar 11, 2009 8:55 pm Post subject: |
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| macgyver655 wrote: | | Not so much power supplies from what I've seen but more so the driver boards for the display and the Y-SUS board that controls the drivers ( such as the other threads on here about the Y-SUS board problems) and a Z-SUS board. These seem to be the common failure boards and most guys replace the whole board. How ever the whole boards can be expensive, new or used. The ones I've done so far though, I trouble shot to component level and repaired with minor parts. So I cant say that there is really a common failure part, but I can say that a lot of different makes use the same LG panels and boards, so boards from one make will work in another make. |
Got a mainboard for a Mitsubishi HC5000 projector? 
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Wed Mar 11, 2009 9:26 pm Post subject: |
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| perisoft wrote: | | macgyver655 wrote: | | Not so much power supplies from what I've seen but more so the driver boards for the display and the Y-SUS board that controls the drivers ( such as the other threads on here about the Y-SUS board problems) and a Z-SUS board. These seem to be the common failure boards and most guys replace the whole board. How ever the whole boards can be expensive, new or used. The ones I've done so far though, I trouble shot to component level and repaired with minor parts. So I cant say that there is really a common failure part, but I can say that a lot of different makes use the same LG panels and boards, so boards from one make will work in another make. |
Got a mainboard for a Mitsubishi HC5000 projector? |
Here's what I absolutely refuse to get involved in. Digital projector's and digital rear projection. Wont touch them, no way, no how. A while back I got a free 50 some inch LCD rear projection tv....not working. I looked at it for a few days just sitting there against the wall..........opened up the back................saw various components that I could use for fixing other stuff..............pulled the chassis and took a hammer to the rest of it so it would fit in the trash can............ 
Man.......that even felt good to type that again....... 
Yes........I AM A DIGITAL HATER!!!!!!!!!!!!!!!!!!!...........I cant control it and dont ask me to................... 
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Wed Mar 11, 2009 9:29 pm Post subject: |
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| drice1234 wrote: | | I would as well like to know if there is a common failure point on these. There is an e-bay store called "sold broken" that sells all store returned merchandise. Their warehouse is only a few miles from me so I can pick items up for only a few dollars. They are always selling broken LCD's that go for a very low price since no one wants to pay the high shipping cost. I would not mind picking a few up if the repairs are not on a board level. |
Go for it. I'll give you a hand on here trying to fix them. I have access to tons of technical data and info and trouble shooting on almost every make and model.
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Wed Mar 11, 2009 9:31 pm Post subject: |
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| perisoft wrote: | | macgyver655 wrote: | | Not so much power supplies from what I've seen but more so the driver boards for the display and the Y-SUS board that controls the drivers ( such as the other threads on here about the Y-SUS board problems) and a Z-SUS board. These seem to be the common failure boards and most guys replace the whole board. How ever the whole boards can be expensive, new or used. The ones I've done so far though, I trouble shot to component level and repaired with minor parts. So I cant say that there is really a common failure part, but I can say that a lot of different makes use the same LG panels and boards, so boards from one make will work in another make. |
Got a mainboard for a Mitsubishi HC5000 projector? |
But see if there is a board number on it and I'll see if I can locate one for you...
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AnalogRocks
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Posted: Wed Mar 11, 2009 10:04 pm Post subject: |
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| macgyver655 wrote: | | perisoft wrote: | | macgyver655 wrote: | | Not so much power supplies from what I've seen but more so the driver boards for the display and the Y-SUS board that controls the drivers ( such as the other threads on here about the Y-SUS board problems) and a Z-SUS board. These seem to be the common failure boards and most guys replace the whole board. How ever the whole boards can be expensive, new or used. The ones I've done so far though, I trouble shot to component level and repaired with minor parts. So I cant say that there is really a common failure part, but I can say that a lot of different makes use the same LG panels and boards, so boards from one make will work in another make. |
Got a mainboard for a Mitsubishi HC5000 projector? |
But see if there is a board number on it and I'll see if I can locate one for you... |
And which trash can would you pull that from
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HD done right!
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perisoft
Joined: 29 Aug 2007
Posts: 2920
Location: Ithaca, NY
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| Posted: Wed Mar 11, 2009 10:12 pm Post subject: |
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| macgyver655 wrote: | | perisoft wrote: | | macgyver655 wrote: | | Not so much power supplies from what I've seen but more so the driver boards for the display and the Y-SUS board that controls the drivers ( such as the other threads on here about the Y-SUS board problems) and a Z-SUS board. These seem to be the common failure boards and most guys replace the whole board. How ever the whole boards can be expensive, new or used. The ones I've done so far though, I trouble shot to component level and repaired with minor parts. So I cant say that there is really a common failure part, but I can say that a lot of different makes use the same LG panels and boards, so boards from one make will work in another make. |
Got a mainboard for a Mitsubishi HC5000 projector? |
But see if there is a board number on it and I'll see if I can locate one for you... |
I found place on eBay selling them - something around 300 bucks. Not sure if I want to screw with it yet, anyway. $300 would be a pretty good deal... if I was fairly sure that would fix it. All I have is the Mitsu tech's word that the blinkenlights mean it's the mainboard, and that it really IS the mainboard, and that it's not also something ELSE. Not much to go on. I'll post if I decide to take a shot at it.
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Wed Mar 11, 2009 10:12 pm Post subject: |
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| macgyver655 wrote: | | Not so much power supplies from what I've seen but more so the driver boards for the display and the Y-SUS board that controls the drivers ( such as the other threads on here about the Y-SUS board problems) and a Z-SUS board. . |
There's your problem right there. No one thought to include a G-SUS board, which would bless every other board in the set, and it would be reliable.  
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AnalogRocks
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Posted: Wed Mar 11, 2009 10:15 pm Post subject: |
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Ok my gawd! That was bad.  Too damned punny.
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perisoft
Joined: 29 Aug 2007
Posts: 2920
Location: Ithaca, NY
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| Posted: Wed Mar 11, 2009 10:28 pm Post subject: |
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| Curt Palme wrote: |
There's your problem right there. No one thought to include a G-SUS board |
Absolutely classic, Curt. You're a star.
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Zebu Fellenz
Joined: 21 Dec 2006
Posts: 2567
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| Posted: Wed Mar 11, 2009 10:58 pm Post subject: |
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| Curt Palme wrote: |
There's your problem right there. No one thought to include a G-SUS board, which would bless every other board in the set, and it would be reliable. |
Very punny
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Wed Mar 11, 2009 11:29 pm Post subject: |
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Yeah, I got stomach cramps, laughing at that one.
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WanMan
Joined: 19 Mar 2006
Posts: 10270
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| Posted: Thu Mar 12, 2009 10:09 am Post subject: |
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| Curt Palme wrote: | NICE! I'd like a local haul like that, I wanna try repairing them.
YOU SUCK! |
Don't repair them. Use a bullet ($0.39 solution) and put them down like a lame horse.
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Fri Mar 13, 2009 12:35 am Post subject: |
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| kal wrote: | So what's the usual issue with these? Power supply problems?
Kal |
Well what do you know, KAL . First one I pull out of the pile to look at and its got a blown out power supply. You have some kind of ESP going on?
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