----- Original Message -----From: Daniel ForróSent: Saturday, February 08, 2014 4:31 AMSubject: Re: [k5synth] Quick diagnostic questionYes, it looks inverter is OK. So maybe just connection between EL foil
in display or EL foil is bad. Measure tis high voltage directly on
display contacts.
If there's a voltage, then you have to change EL foil for the new one.
Ask here:
http://www.backlight4you.com/
I have very good experience with their products and service.
It seems that display is of standard type and could be replaced by
modern one with LED backlight if there's enough space inside the
machine. It needs some modification of circuit, soldering the
connector, and removing inverter.
Daniel Forro
On 8 Feb, 2014, at 12:38 PM, > wrote:
>
> I decided to do something about the dead backlight in my K5, but
> wanted to make sure the inverter wasn't dead also. I never heard
> any high pitched whine from the inverter, but decided to see if
> there was any AC curent flowing. I unplugged the green and violet
> leads from the board and when I turned it on, I immediately heard
> the very high pitched whistle coming fro the inverter. When I
> touched the probes from my multimeter to the pins, I got a reading
> in excess of 100 volts (hard to read the scale accurately due to
> fluctuation caused by my shakiness touching the pins). From this, I
> can presume that the inverter is still fuctioning? When I plug the
> dead backlight back in, the whistle isn't there.No virus found in this message.
Checked by AVG - www.avg.com
Version: 2014.0.4259 / Virus Database: 3697/7075 - Release Date: 02/08/14
Message
Re: [k5synth] Quick diagnostic question
2014-02-08 by jammie
the connector on the k5 is backwards what should be
pin 1 is not as the idc socket has the notch on the wrong way round
so if changing m,ake sure your checking the
connections correctly
i buy my backlight from japan £5 + £2 postage
from an ebay seller ill get the link for
you
the reason why your not getting whine with your
dead backlight is that its still providing enough resistance so the invertor
does not whie
so you have to be careful when transplanting a new
display thay you connect correctly
the newhaven led backlight lcd displays that fit
the sy99/t1/wavestation/k2000 will fit