What is the resistance of R2?

Thank you for the reply!

When removing the old resistor from what I could make out was that it was different resistor to the other two (pink in colour compared to the other two which are the more typical tan colour). From digging around online I found the following image on reddit ( https://preview.redd.it/muipuid66kk21.jp... ), which is an older circuit board, with a 100 ohm resistor at R2, some of the other components are different but don’t know if a 100 ohm resistor would work on my board? Otherwise I think I’ll follow your advice of option 1.

Thanks again

@Aaron Mason

Using a resistor that has similar bands could be used aslong as they have most of them in common but this carries the same risks as the second option

If I were you I would go for the first option:-)

Also, do you know what caused this or did it just happen out of the blue?

Thanks:-)

Thanks again for the advise. I'll keep an eye out on eBay for a cheap one so I can look at the internals.

No idea what caused it, just one day the amplifier stopped working (everything else functions as normal), I'll let you know once it's fixed.

Thanks!

@Aaron Mason

Sounds like a plan:-)

Thanks:-)

I have a similar unit with resistor R2 burnt out. Looking at the PCB, R2 connects power from the DC input (via a diode and power/volume switch) to pin 2 of the Amp IC (TDA2822M). This is the power pin for the amp, hence a resistor doesn't make sense; I suspect this resistor is a 0 ohm for use as a jumper (the PCB is single sided). Otherwise a very low value. Important issue here is it appears that a the original resistor was undersized in terms of power rating, hence it burnt up. A higher power rating is recommended; at least 1/8th or 1/4th W. There is another example circuit using a 1 ohm resistor