Club 80-90 Forums

Hello all

I have just been poking around cleaning terminals on the back of the instrument display in an attempt to fix a sticky fuel level display needle when I came across this (see pictures below) on the plastic PCB behind the clock. It looks like one of the tracks has been cut/melted, perhaps intentionally, and I just wondered if anyone could identify what circuit it is on? On the PCB it is identified as being track no.7 but I have no idea what it does, and whether or not it should be cut? I have an 'early' instrument panel with speedo on the left and clock on the right (no tacho). The part of the PCB in question is to the right of the clock, next to the main 14pin connector.

Can anyone help?

Well that track goes from the fuel gauge to the sender on the tank so I think you may have found your problem.

Really!! That's weird though as the fuel gauge is working again now?? I can't say for sure if it is perfect as I know the tank is pretty low so the needle is only moving just out of the orange reserve level. But I would have thought that if the track was cut like that then the gauge wouldn't work at all??

No its my mistake I think, I'm thinking of the later one...

According to this thread

https://club8090.co.uk/forum/viewtopic.p ... it=battery" onclick="window.open(this.href);return false;

It should be for the clock.

On the old pcb the nr 7 pin is for positive feed (30) for the clock.

Doesnt look to bad, it can be soldered with a low temp soldering station and a good solder with low melting point.

Fantastic! Very helpful thread ZsZ. Thanks very much for finding it for me. I've never soldered a flexible PCB before, only a traditional plastic one, is there anything I should be wary of, other than using low temp solder & iron?

Thank to marlinowner

Summat like this may work...http://www.ebay.co.uk/itm/0-3ml-Silver- ... 1133836438" onclick="window.open(this.href);return false;

oops!! My sincere apologies Marlinowner Thanks very much to your good self for your help.

Re the soldering, just keep the soldering iron on the joint for the minimum time. If you are soldering a wire on to bridge the track, I like to fix the wire to the pcb with a hot glue gun or similar after soldering, so the joint isn't under strain.

Thanks Rob, that looks just the thing. Never seen that stuff before so might give it a go.

Thanks again everyone!