Motorola Astro Xts5000 Detailed 6881094c31 E Manual
Have a look at the manual Motorola Astro Xts5000 Detailed 6881094c31 E Manual online for free. It’s possible to download the document as PDF or print. UserManuals.tech offer 249 Motorola manuals and user’s guides for free. Share the user manual or guide on Facebook, Twitter or Google+.
November 16, 20066881094C31-E 5-20Troubleshooting Charts: Channel/Zone Select Error 5.8 Channel/Zone Select Error MAEPF-27402-O Replace Front Cover Housing Assembly Repair flex or connections as neededU1 checks good? Verify operation of zone knob using Button Test flowchart Signals check good at U1 on the controls flex assy.?Verify codeplug programming with RSS. If codeplug checks OK, then replace U1. By studying the adjacent table against the channel numbers that have errors, one signal may be determined to be in error. Verify logic levels at R235, R236, R239, and R241 for each channel.Channel Select Error No NoYe s Ye s Verify similar operation directly at U1 on controls flex assembly RTA3 (R241)RTA2 (R239)RTA1 (R236)RTA0 (R235) Channel Probe Point 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 01 1 1 1 0 0 0 0 1 1 1 1 0 0 0 01 1 0 0 1 1 0 0 1 1 0 0 1 1 0 01 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
6881094C31-ENovember 16, 2006
Troubleshooting Charts: Button Test5-21
5.9 Button Test
EndKeys
correct?
Check signal
path integrity of
button in questionButton Test
Place radio in Test Mode.
Press Top Side Button
(Monitor) so display reads
CH TEST. This places the
radio in button test mode.
Then, press the orange
(Emergency) Top Button
to verify codes displayed
as shown in the Button
Table at right
No Ye sThis chart relates to a failure in the button functions
Basic Failure modes are as follows:
1) Failure in control top/PTT or keypad flex assembly
2) Bad Connection
3) Defective Switches or pads
4) Defective A/D port in GCAP II
5) Defective MAKO A/D ports (for kit NNTN5567)
Synopsis
Button Table
Button
PTT
Top Button (Emergency)
Side Button 1 (Monitor)
Side Button 2
Side Button 3
Channel Select (Frequency)
Volume Control Knob
Zone SelectCode
1/ 0-1
3/ 0-1
96/ 0-1
97/ 0-1
98/ 0-1
4/ 0-15
0/ 0-244
65/ 0-2
128/1130/1 135/1
136/1 Home Alpha129/1134/1 132/1 131/1133/1
53/1
5JKL 52/1
4GHI54/1
6MNO 50/1
2ABC 49/1
151/1
3DEF
48/1
0 58/1
*
59/1
#
56/1
8TUV 55/1
7PRS57/1
9XYZ
Navigation
Button
November 16, 20066881094C31-E 5-22Troubleshooting Charts: Top/Side Button Test 5.10 Top/Side Button Test Verify operation of channel knob using Button Test flowchart Top/Side Button Test Yes Using RSS, verify button is enabled for function NoButton check OK? Buttons enabled? Using a voltmeter measure the voltages at the appropriate resistor as indicated in the synopsis. When the button of interest is in the depressed state a near zero voltage should be seen at the resistor. Otherwise the voltage should be near V_2.9 For the toggle (TG1) button the voltages for the three states are 2.9V, 1,45 V, and 0 V.Synopsis This chart relates to the failures in reading the top and side buttons. The resistors correspond to the following signals: R231: TG1 R233: Monitor R234: Secure Clear R256: Scan This chart is valid for NCN 6186, NTN5532A and NNTN5567 kits Yes Yes No Us RSS to enable button Button voltages OK? Replace U401No Verify physical operation of buttons Phy sical operation OK?Replace chasis No Verify connections and control top/ PTT flex circuit as necessaryYes
6881094C31-ENovember 16, 2006
Troubleshooting Charts: VCO TX/RX Unlock 5-23
5.11 VCO TX/RX Unlock
MAEPF-27398-B
VCO TX/RX
unlock
11.0Vdc or
drifting?3V at TP5? Yes
Yes
Yes
Yes
Yes YesNo
No
No No No
Yes
YesYes Frequency
detected?
VCO locked? No
YesNo
5V at TP3?
Check
VOCON board
Check parts
around BJT. If
OK, replace BJT Check control
voltage at
TP243Check parts
around U1. If
OK, replace U2
Aux.
line 1 (2, 3, 4)
is high?Aux. line
3 high for TX
or low for RX
(VHF)? Is unit
VHF?
NoNo FET
drain voltage
0V?Check parts
around FET. If
OK, replace FET
No BJT
emitter voltage
>1.2V?Check parts
around U300. If
OK, replace U300Yes
Check parts
around U302.
If OK, replace
Q302No Is pin
19 of VCOBIC
low for RX and
4.5 for TX?Remove
VCO buffer
shield (SH302)
Check parts
around Q301. I
fOK, replace Q301 Check parts
around U2. If
OK, replace U2
Remove
VCO shield
Check parts
around U202. If
OK, replace U202Sniff
frequency near
VCO shield
Check if VCO
is locked using
spectrum analyzerSniff: Using an inductive field probe
as an antenna to measure
frequency. Place the probe
approximately 1/2 inch away
from components to be sniffed.
Q302 VC01
Q306 VC02
Q309 VC03Field Effect
Transistor (FET)
Q301 VC01
Q303 VC02
Q308 VC03 Bi-polar Transistor (BJT)
Bi-polar Transistor (BJT)
Q302 RX1
Q301 RX2
Q304 TX
Field Effect
Transistor (FET)
Q306 RX1 Aux 2
Q305 RX2 Aux 3
Q308 TX Aux 4
November 16, 20066881094C31-E 5-24Troubleshooting Charts: VCO TX/RX Unlock VOCON TX Audio—Page 1 MAEPF-27396-O Inject a 200 mV rms 1.0 kHz tone to the test box Audio In portRepair connections and/or replace flex and microphone Connections OK? Problem with Mic path components? No Problem found. End Replace appropriate component Is FM deviation approx. 3.0 kHz? Connect an RLN4460A audio test box (or equivalent) to the radio side connector Radio has no Transmitter Deviation (VOCON Evaluation) Inspect Microphone and Flex Connector Ye sNo Ye s Ye s No 12 No Probe Voltage at U509, pin 5 Verify Integrity of Mic path up to U509 Is 1 kHz Signal present at approx. 14 mV rms? No Ye s
6881094C31-ENovember 16, 2006
Troubleshooting Charts: VCO TX/RX Unlock 5-25
VOCON TX Audio—Page 2
MAEPF-27397-A
Replace U501
(GCAP II)
Replace
U509
(EEPOT) Go to
TX RF
flowchartReplace U301*
(Flipper ASIC) Clock
and Frame Sync
present?
Data
present at TX
test point? Use an oscilloscope to check the
SSI audio signals from the GCAP
(U703). The following test points
are used for data collection:
DCLK: 520 kHz Square Wave Clock*
TX: Audio Data Words
SYNC: 8 kHz Frame Sync Pulse
No
Ye s
Ye s
End Problem
Resolved?
Ye s 1
2
1 No
No
End Replace
U501
(GCAP II)
Is
1 kHz signal
present at about
14 mV
rms?
Problem
Solved?No
Ye s
NoYe s
256 kHz Square Wave Clock*** on NTN9564, NNTN4563 & NNTN4819 VOCON boards
** on NNTN4717 VOCON board
* on NTN9564, NNTN4563 & NNTN4819 VOCON board
s
** on NNTN4717 VOCON board
Replace U401**
November 16, 20066881094C31-E 5-26Troubleshooting Charts: VCO TX/RX Unlock VOCON TX Audio (for kit NNTN5567)—Page 1 Inspect internal and external microphone contacts Radio has no Transmitter Deviation (VOCON Evaluation) No Connection OK? Yes Repair connections or replace flex connector Connect an RLN4460 test box (or equivalent) to the radio side connector via a programming cable Inject a 225 mV rms 1.0 kHz tone into the test box Audio In port Is FM deviation approximately 3.0 kHz? No VOCON problem found. Yes No Voltage > 7.0 mV rms?Replace C554 and/or C5 55 No Voltage > 7.0 mV?1Yes No Replace L207 and/or L208 Yes Check voltage on C554 and C555
6881094C31-ENovember 16, 2006 Troubleshooting Charts: VCO TX/RX Unlock 5-27 VOCON TX Audio (for kit NNTN5567)—Page 2 1 Voltage = 5.0 V?No Data present?No Yes Yes Yes Clock present?No Yes 2 2 Synchronous pulses present? No Yes Replace U401 Replace U501 Replace U501 Replace U501Check signal on R406 Check Mic_Bias Line on U501 for DC Voltage Replace U501 Check signal on R405Check signal on U408 pin 1 while still applying audio signal to radio
November 16, 20066881094C31-E 5-28Troubleshooting Charts: VOCON RX Audio 5.12 VOCON RX Audio—Page 1 MAEPF-27394-A * on NTN9564, NNTN4563 & NNTN4819 VOCON boards ** on NNTN4717 VOCON boardProbe R406 for Frame Sync Signal, Compare with RX SAP waveform, Trace 1 Frame Sync Present? Replace U301* (FLIPPER) Probe R403 for Data, Compare with RX SAP waveform, Trace 2 Signal Present? THD
6881094C31-ENovember 16, 2006 Troubleshooting Charts: VOCON RX Audio (for kit NNTN5567) 5-29 5.13 VOCON RX Audio (for kit NNTN5567)—Page 1 Check speaker integrity Bad SI NAD Bad 20 dB Quieting No Recovered Audio No Speaker OK? YesReplace Speaker Connect an RLN4460 test box (or equivalent) to the radio side connector via a programming cable Inject Standard Input into antenna connectorA standard input is an RF signal at -47 dBm with a 1 kHz tone modulated at 3 kHz for a 25 kHz channel Audio present? 1No THD < 2 %No Check contacts at M102Yes 1 All signals present? YesReplace U501 Replace U401Yes No Check RX SAP port signal integrity as per chapter 6 Check distortion of signal at R597 and R598Replace U501