jotron TA-7650C Maintenance And Repair Manual Download | Manualshive

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85894_M&R_TA7650C_A

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Summary of Contents for TA-7650C

Page 1: ...85894_M R_TA7650C_A 1...

Page 2: ...ontains both PTT and audio in both directions BAUD Transmission rate unit of measurement for binary coded data bit per second BIT Short form of Binary Digit The smallest element of data in a binary co...

Page 3: ...s to either the default value or zero in memory RF Radio Frequency R O Read only R W Read and Write SIGNAL TO NOISE RATIO S N Quantitative relationship between the useful and non useful part of the re...

Page 4: ...R_TA7650C_A 4 Amendment Record AMENDMENT NO INCORP BY DATE PAGE S VERSION REASON FOR CHANGE 1 ES 21 05 10 26 PA New release 2 ES 26 05 10 26 A Inserted stock no 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 1...

Page 5: ...e devices WARNING Some RF semiconductor devices used in this equipment may contain Beryllium Oxide If inhaled dust from this oxide can be toxic No danger will arise from normal handling but no attempt...

Page 6: ...A Feedback ADC 2 2 2 2 1 5 BITE interface 2 3 2 2 1 6 I O interface 2 3 2 2 1 7 Ethernet controller 2 3 2 2 1 8 Memory 2 3 2 3 FRONT MODULE 2 3 2 3 1 Front board 2 3 2 4 PA MODULE 2 3 2 4 1 PA board 2...

Page 7: ...for abnormal readings Display text Possible reason Module or Board Alarm Failure on the PA module PA module Mod Failure on the Modulation module Modulation module Front Failure on the Front Module Fr...

Page 8: ...ius C PA Module 28V DC voltage in milliVolts mV PA Module 12V DC voltage in milliVolts mV FbA FbB FbA FbB PA Module 5V DC voltage in milliVolts mV PA Module 3V3 DC voltage in milliVolts mV PA Module A...

Page 9: ...2 9 3 6 V PA PA_5V 4 5 5 5 V PA PA_12V 11 12 8 V PA PA_28V 20 29 V PA PA_CUR 0 10 A PA current drain PA MOD_6V 5 0 7 0 V Modulator MOD_LD_L01 Digital 3v3 3 3V Logic alarm if unlocked Modulator PA_TEMP...

Page 10: ...ER 84552 SW MODULE 84554 PA MODULE 82419 FRONT MODULE 84001 FRONT BOARD 84557 MODULATOR MODULE 84553 PA BOARD 82458 84006 MAIN BOARD 84556 MODULATOR BOARD REG BOARD 84558 MAIN MODULE 84549 OPTION POWE...

Page 11: ...ower Amplifier PA performance Interact with the ethernet controller for external control and data exchange Implement a user interface interact with user actions and provide visual feedback through dis...

Page 12: ...through memory bus 2 2 1 8 Memory The DSP needs external memory banks to work The board is equipped with 32Mbit Flash IC 1 and 128Mbit SDRAM IC 3 2 3 Front module The front module consists of the fro...

Page 13: ...ased and the antenna signal flows through the directional coupler and antenna filter trough L6 and out on the Rx port PL5 Antenna filter and directional coupler In transmit mode after passing trough t...

Page 14: ...ment via the power relay on the PA board It also stores the current powerstate in the internal EEprom so that it remembers if the unit was switched on after a power failure 2 5 Modulator module The Mo...

Page 15: ...the synthesizer IC3 The synthesizer is controlled from the main board via the SPI bus Reference input is taken from the system clock located on the main board 2 6 Software module The Software module...

Page 16: ...Main board part 1 KP 84006 1 Place plan Main board part 2 KP 84006 2 Circuit diagram PA board part 1 E 84553 1 Circuit diagram PA board part 2 E 84553 2 Circuit diagram PA board part 3 E 84553 3 Plac...

Page 17: ...Of Material BOM Transmitter Unit BOM 84555 Front module BOM 82419 Front board BOM 84001 PA module BOM 84554 PA board BOM 84553 Reg Board BOM 82458 Main module BOM 84558 Main board BOM 84006 Modulator...

Page 18: ...85894_M R_TA7650C_A 5 1 5 APPENDIX 5 1 PSU 7002 bill of materials The PSU 7002 consists of a traded power supply PBNO0311 from Powerbox A S The PBNO0311 consists of LEP240F 36 from Cosel...

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Page 24: ...85894_M R_TA7650C_A 5 7 5 2 PSU 7002 diagram 1of 2...

Page 25: ...85894_M R_TA7650C_A 5 8 5 2 1 PSU 7002 diagram 2of 2...

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