MCS2000 - Model 1 LCD missing pixels

[g8tzl2004]

My Model 1 MCS2000 LCD is missing some pixels.

Basically the 1st LCD "figure of eight" (from left to right) is missing the "L" part ie. the left hand side and bottom of the "figure of eight", if you know what I mean!!

Thankfully, its a VHF radio so the alpha tags I will be using all start with "1" (ie. 145.5000 ) which is displayed perfect...its mainly the Menu items which are missing parts of letters ie. Low Power is displayed as " ow Power"

I've reads about the MTS2000 LCD pixel issue and how to repair the LCD using an iron or hot air gun.

Is the same fix applicable to the MCS2000 Model 1 LCD...or will reseating the LCD flex cable help? My MCS2000 was made in 2005.

Thanks

[Paul]

If my memory is still intact, MCS2000 is using zebra rubber conductors than flex pcb. In this case you need better sitting (if the rubber is clean).
Check whether the metal tags that support the LCD assy on the PCB provide enough pressure, or if the PCB is not properly seated in the head.

Paul sv2us

[fineshot1]

My Model 1 MCS2000 LCD is missing some pixels.

Basically the 1st LCD "figure of eight" (from left to right) is missing the "L" part ie. the left hand side and bottom of the "figure of eight", if you know what I mean!!

Thankfully, its a VHF radio so the alpha tags I will be using all start with "1" (ie. 145.5000 ) which is displayed perfect...its mainly the Menu items which are missing parts of letters ie. Low Power is displayed as " ow Power"

I've reads about the MTS2000 LCD pixel issue and how to repair the LCD using an iron or hot air gun.

Is the same fix applicable to the MCS2000 Model 1 LCD...or will reseating the LCD flex cable help? My MCS2000 was made in 2005.

Thanks

The MTS2000 LCD pixel issue and your MCS2000 issue are two different issues. Its just as Paul says.
The MCS2000 LCD uses two rubber zebra strips and must have become dislodged slightly and probably
needs to be repositioned or one of the rubber zebra strips contact area is dirty.

[g8tzl2004]

Are the zebra strips delicate or robust? Can I make things worse by trying to reposition or clean the zebra strips?

[fineshot1]

Are the zebra strips delicate or robust? Can I make things worse by trying to reposition or clean the zebra strips?

The strips are robust enough to be handled without fear of tearing them, they are not delicate like flex ribbon cables.

After taking apart the heads I usually clean my hands first and then reposition the strips and LCD's. That is usually all
I have had to do, guess i have been lucky so far after about a few MCS2000's. Only ever had one LCD that needed to
be replaced.

[g8tzl2004]

Does the zebra stip basically connect the circuit board to the LCD and is just held in place by clips?

I once dismantled a faulty LCD calculator and the zebra strip looked like it just rested on "LCD glass"...there did not appear to be any copper pads or anything on the LCD itself..is that correct? Maybe the LCD uses conductive clear paint?

[fineshot1]

Does the zebra stip basically connect the circuit board to the LCD and is just held in place by clips?

I once dismantled a faulty LCD calculator and the zebra strip looked like it just rested on "LCD glass"...there did not appear to be any copper pads or anything on the LCD itself..is that correct? Maybe the LCD uses conductive clear paint?

I don't do too much MCS2000 work anymore but i do not recall any clips.

The strips have conductive material in them so there are no copper parts at all in them.

I think they are slip fitted and when the unit comes together its all held together.