Ericsson LBI-39175A - Manuals

Ericsson LBI-39175A – Manual in PDF format online.

Manuals:

Manual

Manual Ericsson LBI-39175A

Summary

Page 2 - TRANSMITTER

LBI-39175A 2 DESCRIPTION This section contains the information required to service the ORION VHF Dual Bandwidth two-way FMradio. Included are disassembly procedures, alignmentprocedures, and troubleshooting information (see Table ofContents). This radio is adjusted by setting personality parameters ...

Page 3 - MAINTENANCE; PREVENTIVE MAINTENANCE; Table 1 - Maintenance Checks

LBI-39175A 3 MAINTENANCE PREVENTIVE MAINTENANCE To ensure high operating efficiency, and to prevent mechanical and electrical failures from interrupting systemoperations, routine checks should be made of all mechanical and electrical equipment at regular intervals. Thispreventive maintenance should ...

Page 4 - DISASSEMBLY PROCEDURE; To Remove the Unit from the Mounting Bracket; NOTE

LBI-39175A 4 DISASSEMBLY PROCEDURE To Remove the Unit from the Mounting Bracket 1. Remove Microphone, Power, and Accessory/RemoteControl Cables, as required. 2. Remove the lock screws at the side of the radio unit, using a No. 20 TORX  driver. 3. Pull the radio, and remove the mounting bracket. To ...

Page 5 - To Re-Assemble Unit after Servicing; Essentially follow the reverse of the preceding; Remove dust and dirt from the black O-Ring gasket.; CAUTION

LBI-39175A 5 3. Disengage the four captive screws on the rear half(also known as the Remote Interface Adapter, orRIA) of the Control Head. Slide the two halvesapart, using care to avoid damaging the black "O-Ring" moisture gasket attached to the RIA. 4. Disconnect Flex Circuit PC2 from Conne...

Page 7 - ALIGNMENT PROCEDURES; INTRODUCTION; All operations of this radio are controlled by an

LBI-39175A 7 ALIGNMENT PROCEDURES INTRODUCTION All operations of this radio are controlled by an embedded digital computer, which is programmed with apersonality unique to the customer. In order to align andtest the radio, it must be programmed with a specific testpersonality, which will allow conve...

Page 10 - SETTING TRACKING DATA; SITUATION

LBI-39175A 10 SETTING TRACKING DATA Normally, Tracking Data is set at the factory, and need not be re-loaded. However, the following repair situations require re-loading some or all of the Tracking Data: SITUATION NEW TRACKING DATA Replace PA module RF Power, Squelch (Check: Re-load if necessary.) R...

Page 11 - TRANSMITTER ALIGNMENT; The Transmitter consists of synthesizer, exciter,; PA TRANSISTOR REPLACEMENT; To Replace the PA RF Transistors; Unsolder one lead at a time with a 50-watt soldering

LBI-39175A 11 TRANSMITTER ALIGNMENT The Transmitter consists of synthesizer, exciter, and power amplifier. These have been calibrated at thefactory so the radio computer automatically adjusts RFpower and modulation deviation, based upon TrackingData. The following adjustments can be made by EGEPC Pr...

Page 12 - RECEIVER ALIGNMENT; TEST EQUIPMENT REQUIRED; Receiver Frequency Adjustment

LBI-39175A 12 wire board runs to separate from the board. Checkfor shorts and solder bridges before applying power. Failure to solder the transistor leads as directedmay result in the generation of RF loops thatcould damage the transistor or may cause lowpower output. CAUTION RECEIVER ALIGNMENT Alig...

Page 13 - SQUELCH ADJUSTMENT; TROUBLESHOOTING GUIDE

LBI-39175A 13 SQUELCH ADJUSTMENT Squelch threshold has been set at the factory to 8 dB SINAD. Adjustment of the threshold requires changingthe Tracking Data. To change the Squelch Tracking Data,follow the iterative procedure set forth in the"TRACKING DATA" section, except let the desiredsque...

Page 14 - SERVICEABLE PARTS; Radio Unit - Power Amplifier 55 Watts CAH-515L

LBI-39175A 14 SERVICEABLE PARTS Control Unit - Switch Circuit CDF-368B/M No serviceable parts. Control Unit - Panel Control CMC-638 No serviceable parts. Remote Control Unit - RIA NQZ-4882 J2 Connector, 18 Pin B19/5JBAX00020 Radio Unit - System Control CMC-682 F601 Fuse, 5 Amp B19/5ZFAP00008 IC604 A...

Page 15 - DIAGNOSTIC PROCEDURES; This product can be easily measured for maintenance

LBI-39175A 15 DIAGNOSTIC PROCEDURES This product can be easily measured for maintenance using a Communications Service Monitor, of whichseveral models are available. A typical test configurationfor the ORION product is shown in Figure 5. It is also possible to combine this test configuration with th...

Page 16 - ADDITIONAL TOOLS REQUIRED; Digital Voltmeter; SYMPTOM

LBI-39175A 16 ADDITIONAL TOOLS REQUIRED • RF Power Attenuator (30 dB, 150 watt, for transmitters with RF power beyond the capabilities of a ServiceMonitor) • Digital Voltmeter • Oscilloscope (optional) TRANSMITTER SYMPTOM DIAGNOSTIC PROCEDURE No RF power output. a. Program a Conventional System with...

Page 17 - RECEIVER

LBI-39175A 17 RECEIVER SYMPTOM DIAGNOSTIC PROCEDURE Low RF sensitivity. a. Program a Conventional System with frequencies given in Tables 2 and 3.Use "EDACS3" PC Programming utility. b. Unscrew the PA module from the TXRX module. Disconnect the coaxialcable P2 from J401 on the Synthesizer PW...

Page 18 - CONTROL UNIT

LBI-39175A 18 CONTROL UNIT SYMPTOM DIAGNOSTIC PROCEDURE Radio dead at power-on(display dark and nolighted indicators) a. Check the battery connections and the Red lead A+ fuse on the powercable. b. Turn the unit "OFF," then simultaneously press and hold the"EMERGENCY" and "OPTION...

Page 19 - GENERAL; ERROR CODES; All System Groups ORION

LBI-39175A 19 GENERAL SYMPTOM DIAGNOSTIC PROCEDURE Any hardware malfunction PWB substitution is a valid technique for service and repair of the ORION product, since there are only a few circuit boards in the product: 1. RF Power Amplifier 2. Logic/IF/Audio 3. Synthesizer/Exciter/RX Front End 4. Cont...

Page 20 - FATAL ERRORS; ERROR MESSAGE

LBI-39175A 20 message ERR = xxxx where xxx is the error code and the message is one of the messages listed below Figure 6 - Error Message/Code Display FATAL ERRORS NON-FATAL ERRORS ERROR MESSAGE DESCRIPTION ERROR MESSAGE DESCRIPTION HARDWARE ROM errors UNKNOWN SOFTWARE General software failure FEAT ...

Page 21 - ROM Fatal Systems Errors; correct the problem the radio must be serviced.; Operational Software Non-Fatal System Errors

LBI-39175A 21 ROM Fatal Systems Errors ROM fatal errors may be corrected by cycling the radio power (turn it off then on). When the power cycle does not correct the problem the radio must be serviced. ERROR NAME MESSAGE CODE DESCRIPTION FATAL_SYS_TRAP HARDWARE 0 Fatal system error trap number. FATAL...

Page 22 - Operational Software Fatal System Errors

LBI-39175A 22 Operational Software Fatal System Errors ERROR NAME MESSAGE CODE DESCRIPTION RADC_PITD_ERROR TRACKING 200 Personality tracking data error. Re-program the tracking data. RADC_PIHW_ERROR PERSDATA 201 Personality hardware data error. Re-program the personality. RADC_FREQ_ERROR FREQDATA 20...

Page 23 - Radio Programming Errors; Programming errors are divided into three categories:

LBI-39175A 23 Radio Programming Errors Programming errors are divided into three categories: 1. Protocol Errors - These are errors produced by the low level communication routines. 2. Radio Errors - These are errors that are returned from the radio ROM or operating software. 3. PC Errors - These are...