Vintage Synth Repair

http://www.telesisgear.com/id16.html

I have used them for Korg, Kurzweil and Roland backlights, although not the cheapest around, they are quick to ship and their products have always worked well for me.


There are "tricks" to each installation. But that is another subject.

From: NoëlBuhagiar <laser@...>
>To: vintagesynthrepair@yahoogroups.com 
>Cc: korg01w-list@yahoogroups.com 
>Sent: Tuesday, May 15, 2012 6:15 AM
>Subject: [vintagesynthrepair] LCD BACKLIGHTS WARNING!!!
> 
>
>  
>sorry 
guys I also forgot to mention that these backlights are not easy to install at 
all
>although 
they come with ready made wires protruding, the area where the connection is 
made is more to the center then the original Korg backlight that has 2 very thin 
‘film-type’ wires coming out of the left side.
> 
>although 
the backlight itseft is thin and easy to push under the LCD, the connection 
where the wires are soldered isn’t and also worse then this the guy puts 
silicone adhesive that makes it more thick and if one is not extremely careful 
could break the LCD glass.
> 
>if 
you manage to push it in like I luckily did.. you will end up with a 
non-professional display with a slightly blackened LCD where the connection is 
made as this is touching/pushing with the glass.
> 
>so 
I am still looking from other sources that have the wires coming out from the 
side as in original korg factory ones
> 
>keep 
your eyes open everyone!
> 
>----------------------------------------------------------
> 
> 
>my 
experience with Glowsafe is different:
>out 
of 2 backlights sent 1 did not glow (so for me it was not safe like they say at 
all!)
> 
>have 
been trying to contact them and sent several emails to no avail – no 
replies!
>however 
when I contacted them 1st time by email about sales I was answered immediately 
by a guy named Paul.
> 
>so 
at this point I’m stuck with a non-glowing backlight... but the Lord works in 
mysterious ways and so I leave my faith for the righteous to go forward in 
HIM.
> 
>so 
also...I do not recommend Glowsafe at all and be 
careful!!
>this 
could be not a company at all but just a one man band freak trying to rip out 
money from decent people trying to make a living.
>he 
could even be lurking somewhere around here.. so be warned fellas!
> 
>it’s 
a pity as I have several 01/WFDs coming all needing backlight replacement plus a 
general refit etc..
>so 
guess now with whom I will make my order with:
>http://www.backlight4you.com/index.php/cat/c130_EL-Replacements.html/XTCsid/49b0c430a5444dc2a95ac348a81949cf
>
> 
>If 
any tech on this forum has alternative sources please be kind enough as to 
mention it here thanks
>after 
all.. that’s what forums are for, right?
> 
>Cheers 
and good work and health to you all.
> 
>--------------------
> 
> 
>  
>they are the perfect fit for the 240x64 lcd 
displays they all use an equivelent lcd display size dont need to cut the efoil 
as they fit them all
> 
>they sell an invertor to fit it to
> 
>but e foils all work on the same low amp high 
frequency ac voltage 200-400 hz the high the frequency the brighter the display 
but also the higher the frequency the quicker burn out
> 
>they also work on dc 150v-200vdc but burn out a lot quicker with this vaultage
> 
>the invertors range from 5v to 200-400 ac voltage 
hz and 12v to 200-400 hz
> 
>it all depends where you are taking the voltage 
from
> 
>the tx16w uses both on its floppy drive so its easy 
for you to choose
> 
>also being in japan there is a chinese firm that 
does them aswell 
> 
>but those you will have to cut to size your self 
but come in variuos colours
> 
>glowsafe efoils are the standard whitish blue 
light
> 
>i used to cut my own but glowsafe are so cheap that 
it safe me the time effert in doing it as its already done for me but they only 
do the one colour thats the white blue light
> 
>with the manufacture of the vfd it will be exact 
same header so all you have to do is remove the ribbon header and fit new ribbon 
header
> 
>thats what i do with all the 40x2 vfd 
displays
> 
> 
> 
>noritake itron uk i use but they have a usa factory 
and one in japan 
> 
>noritake japan
> 
>for the tx16w its the 40x2 vfd display
> 
>pdf for it is added
> 
>just solder the same 14 connections no back light 
needed and no nasty whining noise from faild efoil
> 
>you buy direct from noritake good service fast 
delivery and the best display there is you can stand 3 meters away and still 
read what on the screen
> 
>unlike a lcd become total blank at a few 
paces
> 
>go onto there web site and 
>----- Original Message ----- 
>>From: Daniel Forró 
>>To: vintagesynthrepair@yahoogroups.com 
>>Sent: Saturday, May 12, 2012 4:09 
PM
>>Subject: Re: [vintagesynthrepair] Korg X5  keys not working
>>   
>>On May 12, 2012, at 10:12 PM, jammie wrote:
>>
>>
>>>
>>>
>>>optrex stop doing those displays becuase they  were not rhos compliant
>>> 
>>>they have equivelents same spec but use led  back lights meaning they are about 7mm thicker some synths its not a problem  but others it is
>>> 
>>>but becuase yours is ccfl the led backlight  versions are about the same size
>>> 
>>>where are you based as optrex factory is in the  usa
>> 
>>I'm in Japan, but nowadays shouldn't be problem to order from USA. I  tried to find modern substitution but they differs in some spec parameters so  I'm not sure if it will work...
>>
>> 
>>>just do the back light foils on most of  those
>>> 
>>>safeglow in uk £7 for the back light cheap as  chips and they work great they come with long wires so it does not mater if  the terminal are in a different place and as seeing the glue terminals are  done at factor and you are soldering just the wires it does not distroy the  backlight with soldering
>>> 
>>>i have fitted them to my sy99 sy85 kurzweil  k2000 kawai k5 and k5000
>>> 
>>>01w t1 and t3ex korg wavestation ex akai s3200  x6
>> 
>>That's good, where you got backlight foils? What about their size, color,  voltage, frequency, which inverter could be used for it?
>>
>> 
>>>im in talks with the manufacturer at the moment  for getting them to make a vfd exact same size as the 240x64 and pcb fixing  holes as its the most used display and they dont do an equivelent  yet
>> 
>>That would be good. Will it be compatible to most synthesizers with  240x64 displays? Will be cable connected, or user has to solder it?
>>
>> 
>>>i have the schems for the tx16w ill see if i  can find them for you and send you a 
pdf
>> 
>>That would be very helpful. Try to ask me if you need some Service  manual, I have huge collection...
>>
>> 
>>>i would say the invertor is gone an easy fix is  by a 5v to ac voltage invertor for back lights use the come in a small black  plastic case with wire for efoil and wires to connect to a 5v supply just  just fit a molex hard drive fitting and get a floppy drive extender  cable
>>> 
>>>that gives you another floppy drive power  conector and a male power
>>>connector for hard drives this is what i used  with the fz1 as the invertor on those is dc to dc and they burn out the  efoil quicker
>>> 
>>>becuase its an insulated product you can just  leave it inside the case i taped mine to the side of the case
>>> 
>>>they work well and are made for the newer  efoils so they connect straight in
>> 
>>Where I can buy such inverter and backlight foil?
>> 
>>>you can fit a 40x2 vfd in s900 /s950/roland  d50/d550/jd800
>>> 
>>>yamaha tx16w
>>> casio cz  range 
>>>and lots of yam synth especially ones with out efoil circuits as  the vfd uses neon lettering and does not require a backlight power  conection
>>> 
>>>also they dont require a angle voltage because they are good  fromn any angle unlike the lcd modules
>> 
>>Which model is it and where I can buy it?
>>Thanks for answers. 
>> 
>>Daniel Forro
> 
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