Question about RIM BlackBerry Pearl 8100

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Dual band amateur radio ic-3210a no rx no tx on uhf side?

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Hi,

Since the problem involves both the RX and TX of the UHF (assuming display/logic circuitry is OK), then possible areas of concern would be:

  • UHF VCO/PLL section;
  • UHF voltage regulator.
I am assuming that you are comfortable/familiar working with electronic circuitry and components, a DVM and a soldering iron. Initial course of action would be:
  • check for CPU triggers to IC4 and IC6;
  • check +5 & +8 regulator and the 30V DC to DC converter (unlikely, but worth the effort).
  • of course comparing with standards voltage checks would be the best route. A service manual would be of help.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

Posted on Aug 23, 2008

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