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Rega Mira amplifier - How do you remove the main PCB?
Rega Mira amplifier - How do you remove the main PCB?
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Old 12th October 2017, 03:03 PM   #1
Bohuweno is offline Bohuweno
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Join Date: Jan 2015
Default Rega Mira amplifier - How do you remove the main PCB?

I need to remove the PCB in my Mira amp as I have to desolder the input switch unit to disassemble and clean it (it's beyond use otherwise), but I can't work out how it's done. I've removed 3 screws, consisting of one grounding screw going through the board to the case, and the two screws holding down the heatsink and anchored in the case. With the heatsink off, I still can't move the board. The output transistors are attached through cutouts in the PCB to what I assume is thermal tape attached to the case, so my best guess is that the transistors need to be prised up off the tape/case. They're pretty well stuck down, except for one which has detached from the tape, and they donít really budge when worked back and forth.


Is this correct, and would that be the last thing holding down the board? Would appreciate any comments and advice from someone who knows the procedure.
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Old 14th October 2017, 05:09 AM   #2
Bohuweno is offline Bohuweno
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Join Date: Jan 2015
Worked this out now, full procedure is to remove a screw located near the volume knob (just above the word Mira printed on the PCB), remove the two screws holding down the heatsink, remove the heatsink, and then gently pull or prise up the four transistors that were located below the heatsink. When all screws and transistors have been detached from the chassis, the board can be removed.
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