My light when on its a yellowy colour it used to light green

In my case problem was dry/old electrolitic capacitor.
Label on PCB - C2
Value 470u/10V 105 degC

If you remove the blue from the picture, it goes yellowy in colour. Maybe a poor connection on the blue LCD unit.
If you are planning on taking a look, be very careful as a damaged flexible cable on an LCD unit will render it an expensive repair!

yes!


Look at the printmenu of your computer for the more helpfull hints.

Im having this same problem. I have yet gotten it solved.. have you fixed it yet?

most monitors have a reset feature. look into that my friend it is rather simple and you should be able to fix your problem from there

LF+ Brown/White
LF- grey
RF+ light green
RF- dark green
LR+ brown
LR- yellow
RR+ dark blue
RR- yellow/green
The +12v constant, +12v switched, and ground connections you should be able to get just using a multimeter (which I would highly recommend you do anyways, just for safety's sake).

Possibly there's an internal electronic part/s of your monitor that is cold soldered / defective. I suggest to bring it to an authorized service center to fix the problem. regards

(Had already done two deep cleans)
1. removed all print cartridges keeping them together and upright
2. qtip (cotton ball on a small plastic stick) soaked in generic nail varnish remover {alcohol based)
3 cleaned print head where cartridge sits repeatedly until no more ink came off on the cotton wool
4. did a deep clean twice
printer then functioned properly

if you are handy with tv's you can open it up. there is a yellowis color board, that is the main power board and there is a fuse, try changing it out and test it.