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2014-04-10 by NoëlBuhagiar
Hello guys, Does anyone know from where I could get some inverter boards for keyboard LCD backlight at a reasonable price? Preferably the ones that work on 5V supply (not 12V). Thanks for your help, noel europe
2014-04-11 by Daniel Forró
I buy here: http://www.backlight4you.com/ No connection with them, just very satisfied customer. Maybe it's good to buy both, new EL foil and proper inverter, to be sure they will work together. Daniel Forro
On 11 Apr, 2014, at 7:24 AM, NoëlBuhagiar wrote: > > > Hello guys, > > Does anyone know from where I could get some inverter boards for > keyboard LCD backlight at a reasonable price? > Preferably the ones that work on 5V supply (not 12V). > > Thanks for your help, > noel > europe
2014-04-11 by NoëlBuhagiar
Thanks Daniel perhaps, I did not specify enough what I’m after the backlight is of the fluorescent tube type about 4 inches so the inverter is different in this case, that works from 5V Thanks again, noel
From: Daniel Forró Sent: Friday, April 11, 2014 2:20 AM To: vintagesynthrepair@yahoogroups.com Subject: Re: [vintagesynthrepair] Inverter boards for keyboard LCD backlight I buy here: http://www.backlight4you.com/ No connection with them, just very satisfied customer. Maybe it's good to buy both, new EL foil and proper inverter, to be sure they will work together. Daniel Forro On 11 Apr, 2014, at 7:24 AM, NoëlBuhagiar wrote: Hello guys, Does anyone know from where I could get some inverter boards for keyboard LCD backlight at a reasonable price? Preferably the ones that work on 5V supply (not 12V). Thanks for your help, noel europe
2014-04-12 by John Rose
I know this is not directly related but may give some other scope for thought. I am currently looking at replacing the EL backlights with LED based ones, the problem is that getting hold of the right size can be difficult so I am working on the idea of using the diffuser panel out of old laptop screens that can easily be cut to the desired size and then attaching some dual high output LED’s that are designed for back illumination, the LED’s are available in a variety of colours and also have a much longer life expectancy than the foils as well as doing away with the high voltages associated with the inverters. At the moment I have an Akai 3000 which has a totally dead backlight so I will probably use this as a test project and will probably go for a red backlight as I think this will be quite pleasing to look at. Many thanks John Rose (www.astrodevelopments.com)
From: vintagesynthrepair@yahoogroups.com [mailto:vintagesynthrepair@yahoogroups.com] On Behalf Of NoëlBuhagiar Sent: 11 April 2014 22:15 To: vintagesynthrepair@yahoogroups.com Subject: Re: [vintagesynthrepair] Inverter boards for keyboard LCD backlight Thanks Daniel perhaps, I did not specify enough what I’m after the backlight is of the fluorescent tube type about 4 inches so the inverter is different in this case, that works from 5V Thanks again, noel From: Daniel Forró <mailto:dan.for@...> Sent: Friday, April 11, 2014 2:20 AM To: vintagesynthrepair@yahoogroups.com Subject: Re: [vintagesynthrepair] Inverter boards for keyboard LCD backlight I buy here: http://www.backlight4you.com/ No connection with them, just very satisfied customer. Maybe it's good to buy both, new EL foil and proper inverter, to be sure they will work together. Daniel Forro On 11 Apr, 2014, at 7:24 AM, NoëlBuhagiar wrote: Hello guys, Does anyone know from where I could get some inverter boards for keyboard LCD backlight at a reasonable price? Preferably the ones that work on 5V supply (not 12V). Thanks for your help, noel europe
2014-04-13 by Daniel Forró
It's possible to buy new EL foils for example here, I have good experience with their products: www.backlight4you.com They offer also inverters for the case also old inverter is dead. Another possibility is to use modern display with LED backlight and do small modifications - add limiting resistor, omit the inverter... It's possible - most of instruments with displays follow standards like T6963 for bigger graphical displays or HD44780 for character displays. I did such exchange in more of my older gear. The only problem can be space - LED backlighted displays are thicker and not fit into some instruments. Then only new EL foil is the solution. Hopefully one day thin displays will come to market, maybe OLED type... Daniel Forro
On 12 Apr, 2014, at 10:57 PM, John Rose wrote: > I know this is not directly related but may give some other scope > for thought. > I am currently looking at replacing the EL backlights with LED based > ones, the problem is that getting hold of the right size can be > difficult so I am working on the idea of using the diffuser panel > out of old laptop screens that can easily be cut to the desired size > and then attaching some dual high output LED’s that are designed for > back illumination, the LED’s are available in a variety of colours > and also have a much longer life expectancy than the foils as well > as doing away with the high voltages associated with the inverters. > At the moment I have an Akai 3000 which has a totally dead backlight > so I will probably use this as a test project and will probably go > for a red backlight as I think this will be quite pleasing to look at. > Many thanks > John Rose > (www.astrodevelopments.com)
2014-04-14 by NoëlBuhagiar
Hi John, yes that is a good idea I have done this on a Korg module although wasn’t that easy due to thickness restrictions fitted l.e.d backlight strip of amber colour as found best the original backlight consisted of a mini-pcb that had minute dual colour l.e.d.s fitted as this was not found I fitted larger type l.e.d.s in strip form and feeded them from a 12V supply taken at a point from the main board supply cct. for the moment I am unlucky as I do not have diffuser available from a scrap screen thanks for your feedback, noel
From: John Rose Sent: Saturday, April 12, 2014 3:57 PM To: vintagesynthrepair@yahoogroups.com Subject: RE: [vintagesynthrepair] Inverter boards for keyboard LCD backlight I know this is not directly related but may give some other scope for thought. I am currently looking at replacing the EL backlights with LED based ones, the problem is that getting hold of the right size can be difficult so I am working on the idea of using the diffuser panel out of old laptop screens that can easily be cut to the desired size and then attaching some dual high output LED’s that are designed for back illumination, the LED’s are available in a variety of colours and also have a much longer life expectancy than the foils as well as doing away with the high voltages associated with the inverters. At the moment I have an Akai 3000 which has a totally dead backlight so I will probably use this as a test project and will probably go for a red backlight as I think this will be quite pleasing to look at. Many thanks John Rose (www.astrodevelopments.com) From: vintagesynthrepair@yahoogroups.com [mailto:vintagesynthrepair@yahoogroups.com] On Behalf Of NoëlBuhagiar Sent: 11 April 2014 22:15 To: vintagesynthrepair@yahoogroups.com Subject: Re: [vintagesynthrepair] Inverter boards for keyboard LCD backlight Thanks Daniel perhaps, I did not specify enough what I’m after the backlight is of the fluorescent tube type about 4 inches so the inverter is different in this case, that works from 5V Thanks again, noel From: Daniel Forró Sent: Friday, April 11, 2014 2:20 AM To: vintagesynthrepair@yahoogroups.com Subject: Re: [vintagesynthrepair] Inverter boards for keyboard LCD backlight I buy here: http://www.backlight4you.com/ No connection with them, just very satisfied customer. Maybe it's good to buy both, new EL foil and proper inverter, to be sure they will work together. Daniel Forro On 11 Apr, 2014, at 7:24 AM, NoëlBuhagiar wrote: Hello guys, Does anyone know from where I could get some inverter boards for keyboard LCD backlight at a reasonable price? Preferably the ones that work on 5V supply (not 12V). Thanks for your help, noel europe
2014-04-17 by Lorne Hammond
and dropping the inverter also reduces hum/buzz issues in some case. Lorne