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Main => Monitor/Video Forum => Topic started by: lilshawn on February 24, 2014, 12:23:25 pm

Title: D9800 service mode
Post by: lilshawn on February 24, 2014, 12:23:25 pm
I have a 27" Wells  D9810 with screwed up colors on it. It failed due to some bad caps on the main board. replaced the caps and now the red drive is all screwed up. the OSD looks okay good but video input is messed. (red raster is appearing over the image but not OSD)

does anybody know if this has a hidden service menu like the 9200 did? (where you held SELECT and DOWN till the service menu displayed) not sure if it would even have one as there is an RGB adjustment on the OSD itself so it may not.

this monitor has a 5 button remote: menu, select +/-, and adjust +/- i've tried different combinations to see if i could get something to pop up but nothing.

there maybe something wrong with the neck board, just looking to explore every avenue before i start blasting this thing with parts.

schematics uploaded by yours truly some time ago for future reference. wells isn't too forthcoming with info on these...i think it was just because it was a last blast of CRT monitors before stuff ran out. no info on WG site at all.

http://forum.arcadecontrols.com/index.php?topic=117794.0 (http://forum.arcadecontrols.com/index.php?topic=117794.0)
Title: Re: D9800 service mode
Post by: TOMMYGUN on February 24, 2014, 02:47:23 pm
at the back of your monitor should be these plastic philips head screws, these control color balance and contrast i think.
Title: Re: D9800 service mode
Post by: ed12 on February 24, 2014, 04:26:58 pm
shawn
ic 702 - 24lc08
is your problem child
it has gone corupt
see if w/g has anymore left?
i know i had them dig for the last 1 i did
rember it is pure digital

ed
Title: Re: D9800 service mode
Post by: grantspain on February 24, 2014, 04:33:47 pm
i would email wells gardner,there must be a service mode on that chassis
i expect it will be the same process as d9400 but for the life i can't remember how to do it

i had this same issue on one a few years ago,one of the background colours went max
Title: Re: D9800 service mode
Post by: lilshawn on February 24, 2014, 06:03:30 pm
the 24LC08 is an I2C serial rom, i could probably reprogram it with my programmer. (if i had the data)

i'l e-mail wells and see what they say.
Title: Re: D9800 service mode
Post by: ed12 on February 24, 2014, 07:28:38 pm
ya u see where it sits ?
it is right under the crt
we call it static
latter units had foil over them for that reason,if your's has foil then it is a hit and miss
if it dose not then that is it
rca and zenith had the same problem

ed
Title: Re: D9800 service mode
Post by: lilshawn on February 26, 2014, 12:43:05 am
yeah that's a good idea ed, i have some aluminum tape...should probably cover it over. anything to keep this junk out of my shop.  ;D
Title: Re: D9800 service mode
Post by: ed12 on February 27, 2014, 03:25:03 pm
Hi Shawn
i have 2 of them chassic's in right now
i will yank the pic out tonight or tommrow and read it and send it to u

ed
Title: Re: D9800 service mode
Post by: ed12 on February 27, 2014, 04:25:11 pm
hi Shawn
kortek is it's kissing cousin

ed
Title: Re: D9800 service mode
Post by: MonMotha on March 03, 2014, 12:12:14 pm
The 9200 would apparently initialize with "reasonable" defaults if you installed a blank EEPROM.  The 9800 may, as well?
Title: Re: D9800 service mode
Post by: ed12 on March 03, 2014, 12:18:04 pm
yes that is correct

ed
Title: Re: D9800 service mode
Post by: ei8ht on June 02, 2014, 03:38:03 am
To enter the factory menu turn the monitor off. Hold the buttons 'OSD' and 'Key +' and turn it on. Thats it.

regards,
ei8ht