Tx Audio Waveforms; Tx And Rx 1 Khz Audio Path Sinewave And Chart - Motorola ASTRO Digital XTL 5000 Detailed Service Manual

6-12

6.2.21 TX Audio Waveforms

1
2
3
4

6.2.22 TX and RX 1 kHz Audio Path Sinewave and Chart

Ch1
May 25, 2005
T
T
T
Ch2, Ch3, Ch4: See 1K sinewave chart
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.
500uS/Div.
Troubleshooting Waveforms: XTL 5000 Waveforms
Ch1 Freq
~ ~
8 kHz
1K sinewave
MAEPF-27868-O
C1 Pk-to-Pk
920mV
C1 Ampl
860mV
C1 Mean
1.408V
Refer to
for test point data
MAEPF-27869-O
Table 6-2
6881096C74-B