TROUBLESHOOTING: SLEDGEHAMMER TX Test
3.9 SLEDGEHAMMER Tx Test
Use this test to check the SLEDGEHAMMER circuitry.
Do the following:
Measure the DC voltage
at L503.It should be equal
to the supply voltage.
Is
the power level
> - 26 dBm?
Yes
No
Yes
No
No
Run the
TX Power Test again.
No
Yes
Perform the RF
JANUS
Module Test.
Do the following:
1. Set the unit to the Open Loop
Power Test at 813.5125 MHz.
2. Measure the RF level at
the JANUS TX input (which is
the input to the TX BALUN) (L503
at the TX_IN side)
Re-measure the RF level at
the
JANUS TX input (which is
the input to the TX BALUN)
(L503 at the TX_IN side)
.
Is
the power level
> 27 dBm?
Do the following:
1. Set the unit to the
TX Power Tune Test.
2. Set the Power Tune
softpot to Max power
3. Measure the RF level
at the antenna port.
Is the DC voltage
equal to the supply
voltage?
Is
the power level
> - 26 dBm?
Continued
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Yes
Continued
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A
B
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