XIEGU
Product Maintenance Manual G90/G90S Portable Short-Wave Transceiver
XIEGU All Rights Reserved Version No.: 1.0 2022-07 Page
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Fault phenomenon: There is a bulge in the center of the spectrum display area
Maintenance methods:
Fault cause 1: IQ signal is unbalanced. The maintenance method
is the same as that of the previous "Receiving IQ balance cannot
be adjusted"
Fault cause 2: CODEC chip is faultily welded or damaged.