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HP Forums / HP Calculators (and very old HP Computers) / General Forum v / HP67 repair - help identify capacitors

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HP67 repair - help identify capacitors
07-05-2023, 05:01 PM
Post: #1
husmus Offline
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HP67 repair - help identify capacitors
Can someone help identify the capacitors in my HP67? I've done the gummy wheel repair and now I get the 'error' message as it pulls the card through. I've attached a photo of my HP67.

The HP97 document talks about...
C1 2.2uF Vgg voltage doubler
C3 2.2uF Vgg voltage doubler
C2 68uF
C4 22uF Vss smoothing
C5 3900pF
C6 47uF
C? ??uF across motor
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HP67 repair - help identify capacitors - husmus - 07-05-2023 05:01 PM



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