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Tinman
Joined: 09 Mar 2006
Posts: 1326
Location: Carson City Nevada
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| Posted: Wed Jan 09, 2008 9:07 pm Post subject: NEC ISS output card Re-Capping. |
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Hi Guys,
If anyone is interested, I have decided to offer a complete Re-capping service for the ISS-6010/20 switcher output cards.
I have put this post in the CRT forum for obvious reasons, but Curt or Kal, please feel free to move it if needed.
It has come to my attention that these cards are beginning to die. I have just re-capped a card for one of Doug's customers due to erratic video problems and discovered that basically ALL the capacitors were at end of life and LEAKING.
The completely cleaned and re-capped card works great and passes it's full bandwidth once again. If you have an ISS switcher and feel that it's just not quite right, you may need your RGB output board re-capped. I tested 3 of my own boards, and to my genuine surprise they were all in bad shape.
I have talked about this with Curt regarding permission to post. I really don't have any intention to interfere in Curt's business and, to be honest, I'd rather not be bothered with re-capping bords. BUT this IS a problem, so after some discussion with a few regulars I have decided to offer the service for Curt Palme members ONLY at $200 per board. (plus shipping) I may offer an already capped and tested board as an exchange part to keep downtime at a minimum, but only if the original board is servicable.
You are looking at 40 caps or so, and several hours to pull, clean, and re-stock one board. Plus 24 hours minimum burn-in using a switcher. If $200 sounds like a lot, please do try this at home.
Remember, we put so much emphasis on our projectors, but forget about the switcher which is ALSO 20 years old. The good news is that the ISS input cards are passive, so only the output card needs to be looked at.
Any interest? Let me know.
Marc
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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 Jan 09, 2008 11:42 pm Post subject: |
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Just a general question Marc, are the output cards in the 6010 and the 6020 the same? Or is there a bandwidth difference?
Are there any other caps in the switchers that need replacing? Power supply etc?
EDIT: I'll have to take mine apart and have a look at the caps.
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overclkr
Joined: 08 Mar 2006
Posts: 4227
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| Posted: Thu Jan 10, 2008 12:42 am Post subject: |
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Does it fix the streaking at 1080P/60?????
If so, I'd be interested in all 3 of my output cards in my theater.
Cliff
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Tinman
Joined: 09 Mar 2006
Posts: 1326
Location: Carson City Nevada
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| Posted: Thu Jan 10, 2008 12:49 am Post subject: |
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I think the cards are the same. I have a 6020 and a 6010. I don't see any difference in the cards, and the part numbers are the same.
No idea what's up with that.
The only other caps would be the PS, but more likely the ground screws. Couldn't hurt, though.
I don't know if it fixes streaking since THAT can be caused by any number of things, the least likely being the switcher. I have had streaking caused by certain sources on my own projector. It can also be the video amps and caps on the neckboards in the projector.
Tell you what, Cliff, bypass the switcher and see if the streaking goes away. If so, then maybe. The coupling caps could be bad, but that would degrade the image in general.
Marc
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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: Thu Jan 10, 2008 12:53 am Post subject: |
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| overclkr wrote: | Does it fix the streaking at 1080P/60?????
Cliff |
Dude, with the amount of porn you look at, there's NOTHING that will cure streaking in your theater. 
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Tinman
Joined: 09 Mar 2006
Posts: 1326
Location: Carson City Nevada
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| Posted: Thu Jan 10, 2008 12:56 am Post subject: |
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| Curt Palme wrote: | | overclkr wrote: | Does it fix the streaking at 1080P/60?????
Cliff |
Dude, with the amount of porn you look at, there's NOTHING that will cure streaking in your theater. |
LMAO!!! I just didn't say it. 
Marc
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stefuel
Joined: 07 Mar 2006
Posts: 3353
Location: Green Harbor MA USA
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| Posted: Thu Jan 10, 2008 11:52 pm Post subject: |
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What about the input cards? I think there's seven caps on them also.
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Tinman
Joined: 09 Mar 2006
Posts: 1326
Location: Carson City Nevada
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| Posted: Fri Jan 11, 2008 5:01 am Post subject: |
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Really? Mine are passive, just relay switches. Got a picture?
Marc
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overclkr
Joined: 08 Mar 2006
Posts: 4227
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| Posted: Fri Jan 11, 2008 12:33 pm Post subject: |
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| Curt Palme wrote: | | overclkr wrote: | Does it fix the streaking at 1080P/60?????
Cliff |
Dude, with the amount of porn you look at, there's NOTHING that will cure streaking in your theater. |
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overclkr
Joined: 08 Mar 2006
Posts: 4227
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| Posted: Fri Jan 11, 2008 12:36 pm Post subject: |
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| Tinman wrote: | I think the cards are the same. I have a 6020 and a 6010. I don't see any difference in the cards, and the part numbers are the same.
No idea what's up with that.
The only other caps would be the PS, but more likely the ground screws. Couldn't hurt, though.
I don't know if it fixes streaking since THAT can be caused by any number of things, the least likely being the switcher. I have had streaking caused by certain sources on my own projector. It can also be the video amps and caps on the neckboards in the projector.
Tell you what, Cliff, bypass the switcher and see if the streaking goes away. If so, then maybe. The coupling caps could be bad, but that would degrade the image in general.
Marc |
Marc, it's the switcher for sure. Two of my output cards go to the G90's and the third goes to my Sony Trinitron 21" CRT.
The Trinitron is the easiest to see it on. It happens with both my ISS Moome board and all of my other inputs as well.
Cliff
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stefuel
Joined: 07 Mar 2006
Posts: 3353
Location: Green Harbor MA USA
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| Posted: Sat Jan 12, 2008 12:20 am Post subject: |
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| Tinman wrote: | Really? Mine are passive, just relay switches. Got a picture?
Marc |
Wifes got the camera.
PWC-3672 72136721 RGB Input PWB
A white sticker on the board reads 5300302
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Tinman
Joined: 09 Mar 2006
Posts: 1326
Location: Carson City Nevada
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| Posted: Sat Jan 12, 2008 3:00 am Post subject: |
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| overclkr wrote: | | Tinman wrote: | I think the cards are the same. I have a 6020 and a 6010. I don't see any difference in the cards, and the part numbers are the same.
No idea what's up with that.
The only other caps would be the PS, but more likely the ground screws. Couldn't hurt, though.
I don't know if it fixes streaking since THAT can be caused by any number of things, the least likely being the switcher. I have had streaking caused by certain sources on my own projector. It can also be the video amps and caps on the neckboards in the projector.
Tell you what, Cliff, bypass the switcher and see if the streaking goes away. If so, then maybe. The coupling caps could be bad, but that would degrade the image in general.
Marc |
Marc, it's the switcher for sure. Two of my output cards go to the G90's and the third goes to my Sony Trinitron 21" CRT.
The Trinitron is the easiest to see it on. It happens with both my ISS Moome board and all of my other inputs as well.
Cliff |
Cliff,
I'll be re-capping a spare board in the next week or 2. Maybe I can send it to you as a test. You could also pull 2 boards out of your switcher to see if one is loading down the others. Swap all 3 and see.
Marc
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Tinman
Joined: 09 Mar 2006
Posts: 1326
Location: Carson City Nevada
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| Posted: Sat Jan 12, 2008 3:00 am Post subject: |
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| stefuel wrote: | | Tinman wrote: | Really? Mine are passive, just relay switches. Got a picture?
Marc |
Wifes got the camera.
PWC-3672 72136721 RGB Input PWB
A white sticker on the board reads 5300302 |
Have to look into that.
Marc
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Mark_A_W
Joined: 15 Mar 2006
Posts: 3068
Location: Sunny Melbourne Australia
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| Posted: Sat Jan 12, 2008 11:53 pm Post subject: |
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Two of the three Output Cards I have are functioning fine. And the third shows no visible signs of bad caps, I haven't tried it, but it was fine last time I used it.
As shown in the pic, the Input card is not passive. Edit: I think the video path is just relays. The active parts are in the audio path and power regulation.
These cards were purchased NOS direct from NEC Australia when they cleared out their pallet of ISS-6020 swichers. They would probably be among the last made.
I haven't heard of any trouble with the batch of switchers/cards - we bought the lot in a group buy.
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Tinman
Joined: 09 Mar 2006
Posts: 1326
Location: Carson City Nevada
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| Posted: Sun Jan 13, 2008 12:42 am Post subject: |
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Oh, yes... that's why I don't worry about the input cards. Does ANYONE actually use the audio???
Bet ya there are at least a few leaking caps on the output card. Look closely at the solder pads around the caps.
Marc
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overclkr
Joined: 08 Mar 2006
Posts: 4227
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| Posted: Sun Jan 13, 2008 12:45 am Post subject: |
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| Tinman wrote: | | overclkr wrote: | | Tinman wrote: | I think the cards are the same. I have a 6020 and a 6010. I don't see any difference in the cards, and the part numbers are the same.
No idea what's up with that.
The only other caps would be the PS, but more likely the ground screws. Couldn't hurt, though.
I don't know if it fixes streaking since THAT can be caused by any number of things, the least likely being the switcher. I have had streaking caused by certain sources on my own projector. It can also be the video amps and caps on the neckboards in the projector.
Tell you what, Cliff, bypass the switcher and see if the streaking goes away. If so, then maybe. The coupling caps could be bad, but that would degrade the image in general.
Marc |
Marc, it's the switcher for sure. Two of my output cards go to the G90's and the third goes to my Sony Trinitron 21" CRT.
The Trinitron is the easiest to see it on. It happens with both my ISS Moome board and all of my other inputs as well.
Cliff |
Cliff,
I'll be re-capping a spare board in the next week or 2. Maybe I can send it to you as a test. You could also pull 2 boards out of your switcher to see if one is loading down the others. Swap all 3 and see.
Marc |
Sounds great Marc!!!! Would greatly appreciate it!
Cliff
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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: Sun Jan 13, 2008 12:51 am Post subject: |
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| Tinman wrote: | Oh, yes... that's why I don't worry about the input cards. Does ANYONE actually use the audio???
Bet ya there are at least a few leaking caps on the output card. Look closely at the solder pads around the caps.
Marc |
My hands up.
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Tinman
Joined: 09 Mar 2006
Posts: 1326
Location: Carson City Nevada
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| Posted: Sun Jan 13, 2008 2:24 am Post subject: |
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| AnalogRocks wrote: | | Tinman wrote: | Oh, yes... that's why I don't worry about the input cards. Does ANYONE actually use the audio???
Bet ya there are at least a few leaking caps on the output card. Look closely at the solder pads around the caps.
Marc |
My hands up. |
Well, put your hand back down. It's not worth mailing the board across the globe (or anywhere) for 7 capacitors. 
Marc
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Mark_A_W
Joined: 15 Mar 2006
Posts: 3068
Location: Sunny Melbourne Australia
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| Posted: Sun Jan 13, 2008 5:29 am Post subject: |
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| Tinman wrote: |
Bet ya there are at least a few leaking caps on the output card. Look closely at the solder pads around the caps.
Marc |
Not visibly - I checked again. This card has never really been used - would that matter?
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Tinman
Joined: 09 Mar 2006
Posts: 1326
Location: Carson City Nevada
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| Posted: Sun Jan 13, 2008 3:31 pm Post subject: |
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Would not matter. I had 2 unused cards that were in worse shape than the one I use. Also, the card will work fine until things get REALLY bad. ESR meter is the only way to tell for sure. Also don't forget that capacitors need to be re-formed if they have not been used in many years. You could blow some up if you just power them up after 15-20 years.
Marc
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