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Discussion in 'Radio Circuits, Repair & Performance' started by AA7BQ, Sep 12, 2004.

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  1. AA7BQ

    AA7BQ QRZ Founder Administrator QRZ Page

    Extended RX/TX By: KD4CWB

    Place the radio with the front panel toward you and bottom side / speaker side UP.
    Remove the (4) screws located in each corner.
    *CAREFUL! Go slow, you will need to disconnect the speaker cable while removing the cover.
    Look at the lower right hand corner of the main printed circuit board.
    *You should see a silver crystal with the number "D196D3C" printed on it.
    *Just above the crystal, you should see an (8x8) matrix pad (see below diagram).

    o o o o o o o o
    o o o o o o o o
    o o o o o o o-o <-- Remove
    o o o o o o o-o <-- Remove

    Note: there are ONLY (2) resistors in place. (Bottom right and the one directly above it).
    *REMOVE BOTH RESISTORS [Do NOT attempt this unless you know how to use a low wattage soldering iron]

    [Image: ]

    *RESET THE RADIO, hold the [SET LOCK] and [S.MW-MW] buttonsdown during power-up.

    DONE! New RX/TX Ranges

    118.0000 - 135.9875 RX-AM only
    136.0000 - 173.9875 RX & TX (15% RF power fall-off at lower freq, Full power at high freq)
    230.0000 - 399.9875 RX only
    400.0000 - 478.9875 RX & TX (Do NOT transmit below 410MHz on HI-PWR, VSWR fold-back)
    479.0000 - 549.9875 RX only
    810.0000 - 849.0000 RX only
    849.0000 - 869.0000 RX only
    894.0000 - 999.9875 RX only

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