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VT420
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DEC VT420 Service Manual page 38
Monochrome video terminal
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Troubleshooting
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30 Removing and Replacing FRUs
7. Disconnect the ground clip from the arc protection board.
G S F _ 1 4 4 5 _ 8 9 . D G
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Troubleshooting
Troubleshooting and Testing
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Troubleshooting the VT420
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