B
With a DMM probe the
intersection PIN 1 of
Q0402
Approx.
6.64V
No
Yes
Check circuitry around
Q0402 and the entire
shielded block for shorts
and opens before replacing
the part
With a high impedance probe
measure the RF level @ 488.5
MHz @ the intersection of
C0421, C0422, and C0428.
> -36.5 dBm
No
Yes
With a high impedance probe
measure the RF level @ 488.5
MHz @ the intersection of
R0429, C0400, and C0411.
> 52 dBm
No
Yes
With a high impedance probe
measure the RF level @ 488.5
MHz @ the intersection of
C0451, D0401, C0430, C0403,
C0405, AND C0404
> 53 dBm
No
Yes
Refer to the harmonic filter and
coupler sub section of the
transmitter
Check for opens and
shorts around the POST-
SELECTOR and 1.5 DB
PAD area
Check for opens and
shorts around the LNA
area
Check for opens and
shorts PRESELECTOR
area
END
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