Marshall G10 Mk-II

[THChrist]

hi!
does anyone has the schematics for this 10w amp? the one with gain, volume and tone knobs and boost switch, or any guts shot so i can trace 'em? thanks!

[slideman82]

Hi! What's the problem with it? If you turn it on and doesn't sound but makes a sound like hum, yor power IC TDA203 is burnt! Just replace it, and voila!

If this is not your problem, we are almost lost!

[Enzo]

The MG10- Mk2 is listd as a "replace only" model on my dealer site.  No schematic is offered.

But as slideman suggested, they are generally very simple amps, and most likely failure is the powr amp chip.

[slideman82]

Yeah, but when replace TDA2030, be sure it's a TDA2030A, that A means higher voltage protection. A new tip I learned last week.