Aluminum Tape on Pioneer DVRs - AVS Forum
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post #1 of 2 Old 05-25-2013, 08:07 AM - Thread Starter
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Just wondering what function the aluminum tape that runs from the HDD to it's attached base serves on many Pioneer Hard Drive Recorders including the 531,533,540,640 and 550.How important is it that I find some aluminum tape for a 640 I just restored that had no HDD or tape.
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post #2 of 2 Old 05-26-2013, 04:58 PM
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The aluminum tape is applied for grounding/shielding purposes: the unit will function without it as long as you re-apply the foam blocks that keep the cabinet cover from touching the internals. It would still be better to buy a roll of the tape and re-apply it as done on the original HDD, however: these recorders can be very sensitive to the slightest HDD glitch, including spurious electrical noise or poor grounding. Since you say this particular 640 came to you without the original HDD, you likely didn't get the foam cabinet-standoff blocks either: at a minimum, you should not connect the unit to power without those blocks. It is remarkably easy to short out and destroy a recorder motherboard by cabinet pressure on one of the internal metallic parts (HDD, DVD, PSU, etc).

Best practice would be to study one of your other Pioneers and apply fresh grounding tape and spacer blocks to the repaired unit to match.
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