Orange Rockerverb MK1 pre-amp tubes no power

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ArnoldNL
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Joined: Sat Oct 20, 2018 11:58 am

Orange Rockerverb MK1 pre-amp tubes no power

Post by ArnoldNL » Sat Oct 20, 2018 12:11 pm

Just got this absolute dreadfully abused Rockerverb MK1 on the testbench... :roll:

The phase inverter tube and the powertubes are lighting up, but none of the other pre-amp tubes are starting to glow. The pots for Mid and Treble on the 2nd channel were busted, so i replaced those.

The tubesocket of the phase inverter was broken, so i replaced it. I've replaced the caps on the phase inverter. I'm seeing some heat-damage on quite a lot of parts, so the amp has been used very well (maybe a bit too well)....

All tubes have been tested and work fine, but for some reason they won't work on this pcb.... All parts have been measured with a LCR-meter and are fine... All wiring looks good...

I'm out of clues... help would be appreciated :)

Jondog
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Re: Orange Rockerverb MK1 pre-amp tubes no power

Post by Jondog » Sat Oct 20, 2018 6:12 pm

Check fuses? replace the heat damaged parts? Reflow solder? Clean everything with de-oxit? Scrap the PCB and hand wire a new amp? :shock:
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bclaire
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Re: Orange Rockerverb MK1 pre-amp tubes no power

Post by bclaire » Sat Oct 20, 2018 7:20 pm

After you have eliminated the obvious, you might have to trace the PC board. Doesn't sound like fun. Does the board show any sign of being cracked?

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