Motorola Astro XTL 1500 - TX Audio Waveforms; TX and RX 1 Khz Audio Path Sinewave and Chart

June 15, 2005 6815854H01-A
6-12 Troubleshooting Waveforms: XTL 1500 Waveforms
6.2.21 TX Audio Waveforms
6.2.22 TX and RX 1 kHz Audio Path Sinewave and Chart
1
T
2
3
4
T
T
1K sinewave
MAEPF-27868-O
Ch2, Ch3, Ch4: See 1K sinewave chart
Ch1 Freq
8 kHz
~
~
Transmit Audio
1 kHz tone which provides 3 kHz deviation
Trace 1 — SAP_DCLK (8 kHz)
Trace 2 — MODIN R6782
Trace 3 — MIC TP0200
Trace 4 — TP0203
Note 3: Actual level is dependent upon volume setting.
MAEPF-27869-O
Ch1
500uS/Div.
C1 Pk-to-Pk
920mV
C1 Ampl
860mV
C1 Mean
1.408V
Refer to Table 6-2
for test point data