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Troubleshooting
30
Microphone Audio Deviation
This phasing procedure is used to phase the deviation that results from normal
audio levels.
Table 6. Microphone Audio Deviation Test Values
Parameter
Test Voltage at Battery Terminals
Test Voltage at Acc. Connector
TEST_CHANNEL
MINIMUM_GAIN_SETTING
MAXIMUM_GAIN_SETTING
LOW_LIMIT
TARGET
HIGH_LIMIT
• Select the SUSPEND button to put the phone into Suspend Mode.
• Under CP_MODE, select the AMPS button to place the transceiver into Analog
call processing mode.
• Under the LOAD_SYN heading, enter desired channel and select the Set Chan
button to tune the UUT to the TEST_CHANNEL
• Under AUD_PATH heading, set Input to 3 and Output to 1, RX MUTE and
select SET.
• Set AUD_LVL to level 3.
• Under AUD_CTRL, select Sidetone OFF.
• Under COMPD, select Compander ON.
• Under SET_RF_PWR, set transceiver to power step 2.
• Under CARRIER, select ON to enable the analog carrier.
• See Figure 10.
• The test set should be configured as follows: 300 Hz HPF, 3 kHz LPF, de-
emphasis OFF. Inject a 1004 Hz, 43.5 mV rms audio signal in to the audio in
pin on the accessory connector. Set equipment to measure FM deviation.
• Measure the peak frequency deviation in kHz.
October 04, 2001
CDMA V200
Value
3.60V
4.40V
350
0
15
2.8kHz
2.95kHz
3.1kHz
6881039B10
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