Measuring component readings

[DPG]

Lower case is ok for logos etc. but place names and "I" etc. look wrong. Paragraphs of text ought to used mixed case.

 

[Jonathan Wilcox]

Lower case is ok for logos etc. but place names and "I" etc. look wrong. Paragraphs of text ought to used mixed case.

I did dwell over it for a while – well thanks for your feedback guys. I will get amending when I have a spare minute

 

[DPG]

I did dwell over it for a while – well thanks for your feedback guys. I will get amending when I have a spare minute

Constructive feedback - no offence intended.

 

[Golden_Boy]

I was in the electronics repair industry for 50 years.
Unless you know how components are SUPPOSED to work you have almost no chance of finding a faulty part in transistorised Equipment.
Having said that there are available from china, very cheap component testers that will tell you what the component is as well as the value of it. The big problem is that unless you replace ALL the faulty parts you risk the whole lot failing again as soon as you apply power..

 

[static zap]

If the equipment has any " intelligence" built in you need to be aware of it for fault finding process .
( A quick schematic hunt - lead me up garden path, similar models)

 

[EalingBadger]

Another common problem with old electronic kit is dry joints. Many an item has been successfully repaired by rewetting such a joint. One electronics engineer that I hold in very high regard will often rewet every joint on a PCB if he suspects dry joints though I've never had to resort to going this far myself.

I also second the advice of others - electrolytic capacitors have a strictly limited life which is particularity sensitive to elevated temperatures within equipment.

Also beware of 'copper cancer'. Some PCBs are prone to having the copper tracks 'eaten' by the coatings originally applied to protect them. Quad pre-amps of a certain age, for example, are particularly prone to this.

All in all though, this is an electricians forum, and you would be better off seeking advice from somewhere that specialises in electronics.