Motorola Xts5000 Detailled 6881094c31 E Manual
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November 16, 20066881094C31-E 5-40Troubleshooting Charts: TX RF (UHF R1/700-800 MHz) TX RF (UHF R1/700-800 MHz)—Page 2 MAEPF-27420-B RAWB+ about 7.2 Vdc? Measure RAWB+ at Q107-drain No No No Ye sYe s Ye s Check continuity V.gate about 2 to 3 Vdc?Check continuity DC bias is OK, control is OK, RFIN is OK, PA has low gain Replace Q107NoYe sMeasure RF level at pin 6 of Q107 Is unit VHF? No Ye sRemove SH101 and check for parts off pad Level about +35 dBm? Replace U102. For VHF, check under SH101. if all parts soldered, replace U102.Measure gate bias at L108 RAWB+ about 7.2 Vdc? Measure RAWB+ at U102-6 No No Ye s Ye s TX7V about 7.2 Vdc?Check continuity Measure Vgate at TP111, normally 4 to 5.5 Vdc Measure TX7V at U102-14 DC bias is OK, control is OK, RFIN is OK, driver has low gainVgate > 4 Vdc? 21 3 4
6881094C31-ENovember 16, 2006 Troubleshooting Charts: TX RF (UHF R1/700-800 MHz) 5-41 TX RF (UHF R1/700-800 MHz)—Page 3 INT > 5 Vdc? Vgate at TP111 is low (< 4 Vdc) Measure INT at TP104 Ye s No No Ye sYe sNoReplace Q108 INT is low. Measure VLIM at TP119 PCIC is programmed. Measure TEMP at R130Bad PCIC Replace U104 VLIM about 2 to 3 Vdc? No Ye s Measure RFIN at TP101TEMP < 1.0 Vdc at 25C? RFIN is low, INT is low, bad PCIC, replace U104TP101 < 0.5 Vdc?Low output power, RFIN is high, check RF detectors and op amp U106. Repair defects Repair temperature sensor circuit (U103, Q109, R130) 4 4 TXINH < 1 Vdc? TX7V is low. Measure TXINH at P1-19, Q101-b No No Ye s Ye s RXH < 1 Vdc? No Ye sBad PCIC Replace U104 RXH > 5 Vdc?Bad control signal from VOCON Trace dc levels through switching transistors Q101, Q102, Q103, and Q106 Replace bad transistors Measure RXH at U104-23 and Q103-b 3 MAEPF-27476-O
November 16, 20066881094C31-E 5-42Troubleshooting Charts: Keyload Failure 5.17 Keyload Failure MAEPF-27388-B No NoYe s Ye s NoKeyload Failure KEYLOAD message displayed? With KVL attached to radio and radio on, initiate a keyload by pressing PTT on the keyloader and look for activity on J701-1 Ye sVerify connection across J701 Repair connection Correct equipment? Obtain correct KVL and cable No Verify and repair connection of UC_CTS, UC_RS232DIN_USB-, and UC_OPT_SEL2 signals from KVL to universal connector to J101Verify the use of the correct secure kit and key loader: With KVL attached to radio and radio on, verify display message KEYLOAD Activity? Verify connection of KEYFAIL from the universal connector pin 13 to J101-2 and D301 Ye s NoGood connection? Repair connection Replace secure module Ye s Good connection? Verify operation of voltage translator circuit by seeing activity on R315 NoReplace translator circuit Ye s Translator circuit OK? Replace VOCON boardThis failure relates only to secure- equipped radios and indicates a failure to load key with the KVL indicated by the message KEYFAIL and key-fail tone. Typical failure modes would be: 1) Open between universal connector uC which places radio in Keyload mode. 2) Use of wrong KVL or KVL cable for XTS 5000 radio. 3) Failure of secure module.Synopsis XTS 5000 UCM Kits: Software Kits: NNTN4006A - DES, DES-XL, DES-OFB NTN9837A - DES, DES-XL, DES-OFB with DVP-XL NTN9838A - DVI-XL NTN9839A - DVP-XL NNTN4197 - AES NNTN4198 - AES with DES, DES-XL, DES-OFB Hardware Kits: NTN9738C NNTN5032A Use KVL - 3000 or later model Keyloader. Use with cable TDN9390.
6881094C31-ENovember 16, 2006 Troubleshooting Charts: Secure Hardware Failure 5-43 5.18 Secure Hardware Failure MAEPF-27387-O Ye s No Ye s No No NoFail 09/10 or 09/90 Secure Hardware Failure Connections good?Repair connections Ye sReplace secure module Verify electrical activity at the following signals at power up: Connections good? Repair opens No Ye s Is known good module available?Replace module with known good one and retestVerify connections to secure module through J701 Signals good? Ye s Replace secure module Radio functions with known good module? Replace respective source IC or VOCON boardThis failure relates only to secure-equipped radios and indicates a power-up self-test failure for the secure module. More specifically this failure indicates a failure in communications between the DSP and secure module. The secure module is not considered field repairable so troubleshooting is limited to verifying a problem with the module and replacing. Typical failure modes would be: 1) Open between secure module and VOCON board at J701. 2) Failure of the SSI bus that the DSP uses to communicate with the secure module. 3) Failure to get proper supplies and grounds to J701.Synopsis Use ohmmeter to electrically verify the following signal connections to source IC: Signal @ J701 Source ENC_SSI_DI R403 ENC_SSI_DO R402 ENC_SSI_CLK R405 RESET_ENC R418 Verify bias of following signals: Signal @ J701 Nominal Bias UNSW_B+ 7.5VDC+/-1.0VDC SW_B+ 7.5VDC+/-1.0VDC GND GNDSignal @ J701 Source ENC_SSI_DI R403 ENC_SSI_CLK R405
November 16, 20066881094C31-E 5-44Troubleshooting Charts: Secure Hardware Failure Notes
Chapter 6 Troubleshooting Waveforms This chapter contains images of waveforms that might be useful in verifying operation of certain parts of the circuitry. These waveforms are for reference only; the actual data depicted will vary depending on operating conditions. 6.1 List of Waveforms Table 6-1 lists each waveform and the page on which the waveform can be found. Table 6-1. List of Waveforms WaveformPage No. 13 MHz Clock 6-2 16.8 MHz Buffer Input and Output 6-3 32.768 kHz Clock Outputs 6-4 SPI B Data 6-5 Receive Serial Audio Port (SAP) 6-6 Receive Baseband Interface Port (RX BBP) 6-7 Transmit Baseband Interface Port (TX BBP) 6-8
November 16, 20066881094C31-E 6-2Troubleshooting Waveforms: 13 MHz Clock 6.2 13 MHz Clock 13 MHz clock from U301 to U501. Trace 1: Trace recorded at C303 on the NTN9564 board. Similar waveform is visible on C339 on the NNTN4563, NNTN4819, NNTN4717 & NNTN5567 VOCON boards. Figure 6-1. 13 MHz Clock Waveform MAEPF-27490-O
6881094C31-ENovember 16, 2006 Troubleshooting Waveforms: 16.8 MHz Buffer Input and Output 6-3 6.3 16.8 MHz Buffer Input and Output Trace 1: Buffer input at R452. Trace 2: Buffer output at C452 or C450 (NNTN5567). Note: These components are under shield SH101 on the NNTN4563, NNTN4819, & NNTN4717 VOCON boards. Figure 6-2. 16.8 MHz Buffer Input and Output Waveforms MAEPF-27491-O
November 16, 20066881094C31-E 6-4Troubleshooting Waveforms: 32.768 kHz Clock Outputs 6.4 32.768 kHz Clock Outputs Trace 1: Output at C313 (to real-time clock of GCAP II IC) or R543 (NNTN5567). Trace 2: Output at U302, pin 2 (to Patriot IC CKIL input). Note: These components are under shield SH102 on the NNTN4563, NNTN4819, & NNTN4717 VOCON boards. Figure 6-3. 32.768 kHz Clock Outputs Waveforms MAEPF-27492-O
6881094C31-ENovember 16, 2006 Troubleshooting Waveforms: SPI B Data6-5 6.5 SPI B Data Trace 1: GCAP II IC chip enable at R539 (Note active high) or TP_MAKO_CE (NNTN5567). Trace 2: SPI data clock at Test Point SCKB or at SCKB (NNTN5567). Trace 3: SPI data to GCAP II IC at Test Point MOSIB or SPI data from Patriot at Test Point MOSIB (NNTN5567). Figure 6-4. SPI B Data Waveforms MAEPF-27493-O