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Main => Monitor/Video Forum => Topic started by: Rickn on December 28, 2018, 08:46:07 pm

Title: Nanao MS2930 who is up to the challenge black goo and service manual, schematic
Post by: Rickn on December 28, 2018, 08:46:07 pm

Hi Guys number of things lets start with the black goo "kiss of Death.

I have just went through 5 MS2930 and 1 MS2931.. yes the goo comes from the horizontal drive transformer.
Yes the black goo is a potting compound so not conductive.
Yes can be "kiss of death if not taken care of early, 2 issues the lack of potting compound in the transfomer can cause a failure with the trasformer, or the leaking goop can get into a number of the main board pots such as X-ray protect, sub vertical size and others.

Treatment, remove the drive tarnsformer and flyabak if necessary, scrape with a razor blade scraper and cleam up with Nail polish rover. Either repot or seal the drive transformer with a high grade RTV Silicone, I have not not been able to identify who made the tarsformer or suitable replacement.
Replace pots as needed.
Put i all back together.

Good luck, so far 4 out of six sucess rate.

NOW THE CHALLENGE, can ay one provide good schematics of the 2931, I have a poor one, CAN any one provide a schamtic of the 2930.. desperate on this one.

Jomac and GSpain have been a lot of help.. Thanks but we still have not found one.
Please post and email me rick@niemandisplays.com and we will find a way to post a link to the community.

Thanks

Rick

Rick@niemandisplays.com


Now thw challenge, has any one ever founn a legible schematic or service manual for the 2930?. Gme

Title: Re: Nanao MS2930 who is up to the challenge black goo and service manual, schematic
Post by: Rickn on December 31, 2018, 01:03:22 pm

So far no response on schematics for the 2930 and the legibility of the 2931 is terrible. I am wondering if by chance included with either the Candy Cab or Astrocity cab?

I have contacted Eizo/Nanao in Cypress CA and as it is a 20 year old monitor they do not have anything on these.

They have given me a link to a couple of early models.


Will keep trying.


Rick

Title: Re: Nanao MS2930 who is up to the challenge black goo and service manual, schematic
Post by: grantspain on December 31, 2018, 01:21:22 pm

i sent you a schem that is pretty clear- did you check the email?

Title: Re: Nanao MS2930 who is up to the challenge black goo and service manual, schematic
Post by: princess prin prin on December 31, 2018, 02:57:06 pm

Quote from: Rickn on December 28, 2018, 08:46:07 pm

yes the goo comes from the horizontal drive transformer.

No, from the linearity coil.