Motorola Astro Digital Mobile Radio Xtl5000 Detailled 6881096c74 B Manual

							6881096C74-BMay 25, 2005
Troubleshooting Waveforms: XTL 5000 Waveforms 6-5
6.2.7 DSP SSI Port TX Mode CSQ
6.2.8 SPI Bus Waveform
T
T
3
Ch1 Ch2
Ch3
2
1
M  5.00us  Ch1       2.2 VCh1 Freq
~47kHz
5.00V5.00V
5.00V
MAEPF-27859-O DSP SSI Port TX Mode CSQ
Trace 1 — DAC_SSI_FSYNC
Trace 2 — DAC_SSI_TXD
Trace 3 — DAC_SSI_CLK (2.4 MHz)
C1 Freq
164.6 kHz
MAEPF-27860-ORadio Power-Up
Trace 1 — Data
Trace 2 — Chip Select
Trace 3 — Clock 
						

							May 25, 20056881096C74-B
6-6Troubleshooting Waveforms: XTL 5000 Waveforms
6.2.9 SB9600 Waveforms
6.2.10 SB9600 BUS+ and BUS- Waveforms
MAEPF-27781-O
MAEPF-27871-O 
						

							6881096C74-BMay 25, 2005
Troubleshooting Waveforms: XTL 5000 Waveforms 6-7
6.2.11 SB9600 BUS+ and RESET Waveforms
6.2.12 SB9600 BUSY and BUS- Waveforms
MAEPF-27872-O
MAEPF-27873-O 
						

							May 25, 20056881096C74-B
6-8Troubleshooting Waveforms: XTL 5000 Waveforms
6.2.13 RS-232 RX Waveforms
6.2.14 RS-232 TX Waveforms
X =  2.9usX =  2.3us
MAEPF-27705-A
+ 12V
- 12V
MAEPF-27706-A
X =  2.7usX =  3.4us
MAEPF-27707-A
+ 9V
- 9V
MAEPF-27708-A 
						

							6881096C74-BMay 25, 2005
Troubleshooting Waveforms: XTL 5000 Waveforms 6-9
6.2.15 RS-232 RX/TX Waveforms
6.2.16 USB Waveforms 
						

							May 25, 20056881096C74-B
6-10Troubleshooting Waveforms: XTL 5000 Waveforms
6.2.17 Serial Audio Port Waveforms
6.2.18 Secure Interface Waveforms
MAEPF-27864-O
C1 Freq
~8kHz
Transmitting
1 kHz tone at 85mVrms into microphone
Trace 1 — Frame Sync — SAP_FSYNC
Trace 2 — Clock — SAP_DCLK
Trace 3 — Data — SAP_TX
Ch1 Ch2
Ch3M
20.00us
Ch3 1.20VJ0501-1
SAP_TX
J0501-2
SAP_RX
J0501-4
SAP_FSYNC
J0501-3
SAP_DCLK
2.00V2.00V
2.00V 2.00VMAEPF-27865-OCh4Receiving
1 kHz tone at 3 kHz Dev, -47dBm Secure Mode
Trace 1 — J0501 — 1 - SAP TX
Trace 2 — J0501 — 2 - SAP RX
Trace 3 — J0501 — 3 - SAP DCLK 
						

							6881096C74-BMay 25, 2005
Troubleshooting Waveforms: XTL 5000 Waveforms 6-11
6.2.19 8 kHz Frame Sync Waveform
6.2.20 RX Audio Waveforms
M100us
Ch1 1.20V
1.00V
MAEPF-27866-O
Ch1
C1 High
2.85V
C1 Period
124us
Receiving
1 kHz tone at 3 kHz Dev, -47dBm Secure Mode
Trace 1 — J0501 — 4
2
1
3
4
Ch1 Freq
   8 kHz
1K sinewave
MAEPF-27867-O
Ch2, Ch3, Ch4:  See 1K sinewave chart
~
~   
T
T
T
Receiving
1 kHz tone @ 3 kHz deviation, -60 dBm. Volume set to rated audio.
Trace 1 — SAP_DCLK (8 kHz)
Trace 2 — TP0205
Trace 3 — SPKR_LOW out of U0204
Trace 4 — SPKR_HI out of U0204
Note 3: Actual level is dependent upon volume setting. 
						

							May 25, 20056881096C74-B
6-12Troubleshooting Waveforms: XTL 5000 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 chartCh1 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
Ch1500uS/Div.
C1 Pk-to-Pk
920mV
C1 Ampl
860mV
C1 Mean
1.408V
Refer to Table 6-2 
for test point data 
						

							6881096C74-BMay 25, 2005
Troubleshooting Waveforms: XTL 5000 Waveforms 6-13
Table 6-2.  TX and RX Audio Path Test Points for 1 kHz Sine Wave
(for Mid Power VHF, UHF R1 and 700/800 MHz)
Ty p i c a lO-ScopeMeasured mV p-pVo l ts
Test PointDescriptionmV RMSmV/divLL 1UL 2DC Bias
TX Audio Path
MIC_HI 80 mV RMS input 80 mV 20 226 227 3 to 9
TP0200 MIC_PREAMP_IN 80 mV 20 220 227 1.42
TP0201 Preamp in, attn.-out 43 mV 10 100 122 1.42
U0201-1 1st op amp out 
342 mV 10 97 121 1.42
TP0202 2nd op amp in 341 mV 10 97 121 1.42
U0201-7 2nd op amp out 41 mV 10 94 120 1.42
U0201-8 3rd op amp and filter out 40 mV 10 91 119 1.42
U0201-14 4th op amp and filter out 39 mV 10 88 118 1.42
TP0203 CODEC op amp in 38 mV 10 85 117 1.42
U0200-17 Buffered CODEC in 36 mV 10 82 116 1.42
C0904 5 CF Out 150 mV 50 400 700 1.42
R6782 MOD_IN at 3 kHz dev. 
3150 mV 50 400 700 1.5
RX Audio Path 4
TP0204 RX_FILT_AUDIO 318 500 849 953 1.42
TP0205 RX_AUDIO_IN 318 500 849 953 1.42
TP0206 AUDIO_PA_IN 39 10 92 130 1/2 A+
SPKR+ NON INVERTED PA out 7.74 Vbtl 
52V 9.5Vpp 12.4Vpp 1/2A+
SPKR- INVERTED PA out 7.74 Vbtl 52V 9.5Vpp 12.4Vpp 1/2A+
1 LL = lower limit2 UL = upper limit3 Measurement depends on tuning parameters4 1 kHz tone at 3 kHz deviation, -47 dBm5 “btl” = bridge to load 
						

							May 25, 20056881096C74-B
6-14Troubleshooting Waveforms: XTL 5000 Waveforms
Table 6-3.  TX and RX Audio Path Test Points for 1 kHz Sine Wave  
(for all High Power and Mid Power R2)
Ty p i c a lO-ScopeMeasured mV p-pVo l ts
Te s t  P o i n tDescriptionmV RMSmV/divLL 1UL 2DC Bias
TX Audio Path
MIC_HI 80 mV RMS input 80 mV 20 226 227 3 to 9
TP0200 MIC_PREAMP_IN 80 mV 20 220 227 2.5
U0201-8 1st op amp out 
30 mV 10 0 10 2.5
U0201-7 2nd op amp out 80 mV 10 210 227 2.5
U0201-1 3rd op amp and filter out 80 mV 10 210 227 2.5
U0201-14 4th op amp and filter out 80 mV 10 210 227 2.5
TP0203 CODEC op amp in 36 mV 10 85 117 1.42
U0200-17 Buffered CODEC in 36 mV 10 82 116 1.42
C0904 5 CF Out 150 mV 50 400 700 1.42
R6782 MOD_IN at 3 kHz dev. 
3150 mV 50 400 700 1.5
RX Audio Path 4
TP0204 RX_FILT_AUDIO 318 500 849 953 1.42
TP0205 RX_AUDIO_IN 318 500 849 953 1.42
TP0206 AUDIO_PA_IN 39 10 92 130 1/2 A+
SPKR+ NON INVERTED PA out 7.74 Vbtl 
52V 9.5Vpp 12.4Vpp 1/2A+
SPKR- INVERTED PA out 7.74 Vbtl 52V 9.5Vpp 12.4Vpp 1/2A+
1 LL = lower limit2 UL = upper limit3 Measurement depends on tuning parameters4 1 kHz tone at 3 kHz deviation, -47 dBm5 “btl” = bridge to load