Ericsson Orion Service Section
136-174 mhz synthesized
Hide thumbs
Also See for Orion:
- Installation manual (48 pages) ,
- Service manual (24 pages) ,
- Maintenance manual (6 pages)
Table of Contents
Advertisement
Quick Links
SYNTHESIZED TWO-WAY FM RADIO
DESCRIPTION ...................................................................................................................... 2
INITIAL MEASUREMENTS................................................................................................. 2
TRANSMITTER....................................................................................................... 2
RECEIVER............................................................................................................... 2
MAINTENANCE................................................................................................................... 3
PREVENTIVE MAINTENANCE............................................................................. 3
DISASSEMBLY PROCEDURE................................................................................ 4
ALIGNMENT PROCEDURES............................................................................................... 7
INTRODUCTION..................................................................................................... 7
TRACKING DATA.................................................................................................. 9
TEST FREQUENCIES ............................................................................................. 9
SETTING TRACKING DATA .................................................................................10
TRANSMITTER ALIGNMENT.............................................................................................11
PA TRANSISTOR REPLACEMENT .......................................................................11
RECEIVER ALIGNMENT.....................................................................................................12
TEST EQUIPMENT REQUIRED.............................................................................12
ADJUSTMENT PROCEDURES...............................................................................12
SQUELCH ADJUSTMENT......................................................................................13
TROUBLESHOOTING GUIDE .............................................................................................13
INTRODUCTION.....................................................................................................13
MICROPHONICS.....................................................................................................13
SERVICEABLE PARTS...........................................................................................14
DIAGNOSTIC PROCEDURES ..............................................................................................15
ADDITIONAL TOOLS REQUIRED ........................................................................16
ERROR CODES .......................................................................................................19
SERVICE SECTION
136-174 MHz ORION
TABLE OF CONTENTS
LBI-38993
Page
1
Advertisement
Table of Contents
Related Manuals for Ericsson Orion
Summary of Contents for Ericsson Orion
-
Page 1: Table Of Contents
LBI-38993 SERVICE SECTION 136-174 MHz ORION SYNTHESIZED TWO-WAY FM RADIO TABLE OF CONTENTS Page DESCRIPTION ........................2 INITIAL MEASUREMENTS....................2 TRANSMITTER....................... 2 RECEIVER....................... 2 MAINTENANCE........................3 PREVENTIVE MAINTENANCE................3 DISASSEMBLY PROCEDURE................4 ALIGNMENT PROCEDURES....................7 INTRODUCTION..................... 7 TRACKING DATA....................9 TEST FREQUENCIES ..................... -
Page 2: Description
INITIAL MEASUREMENTS This section contains the information required After the radio has been installed as described in to service the ORION VHF two-way FM radio. Included the Installation Manual, the following measurements are disassembly procedures, alignment procedures, and should be made by a certified electronics technician, and troubleshooting information (see Table of Contents). -
Page 3: Maintenance
LBI-38993 MAINTENANCE PREVENTIVE MAINTENANCE NOTE To ensure high operating efficiency, and to prevent mechanical and electrical failures from interrupting system operations, routine checks should be made of all mechanical and electrical equipment at regular intervals. This preventive maintenance should include the checks as listed in Table 1, Maintenance Checks. Table 1 - Maintenance Checks MAINTENANCE CHECKS INTERVAL... -
Page 4: Disassembly Procedure
LBI-38993 DISASSEMBLY PROCEDURE NOTE The VCO/Synthesizer circuitry is exposed by removing the screws from the shield casting, also located on the bottom of the module. However, this is not recommended, except on extreme situations. If the shield To Remove the Unit from the Mounting Bracket is removed, it should be replaced using the exact screw torque and installation sequence given in LBI-38909. - Page 5 LBI-38993 Disengage the four captive screws on the rear half NOTE (also known as the Remote Interface Adapter, or For re-assembly of the Control Units (Front and Remote RIA) of the Control Head. Slide the two halves Mounting) Revision "A" or later, be sure the black "O- apart, using care to avoid damaging the black "O- Ring"...
- Page 6 LBI-38993 Figure 1A - Front Mount Control Unit "O-Ring" Lubrication Figure 1B - Remote Mount Control Unit "O-Ring" Lubrication...
-
Page 7: Alignment Procedures
The voltage limits In order to program an ORION personality, the shown for a non-optimum load is for "worst case" radio and control unit must first be connected to a conditions. - Page 8 LBI-38993 Figure 2 - ORION Programming Configurations (USA) Figure 3 - ORION Programming Configurations (EURO)
-
Page 9: Tracking Data
LBI-38993 procedures are required to load new Tracking Data. therefore, it is VERY IMPORTANT to establish a TRACKING DATA record of the Tracking Data of every radio as it is received from the factory. The frequencies at which Tracking Data is established are given in the "Test radio personality contains... -
Page 10: Setting Tracking Data
LBI-38993 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.) Replace TXRX module RF Power, Modulation Deviation, Squelch, Feature Encryption, and Data Offset... -
Page 11: Transmitter Alignment
LBI-38993 4. Repeat Steps 2 and 3 until the measurements at OF THESE COMPONENTS WILL VOID every frequency given in Tables 2 and 3 are within WARRANTY OF THIS PRODUCT. the limits specified. NOTICE TRANSMITTER ALIGNMENT The components listed above have been set at the factory and are NOT adjustable. -
Page 12: Receiver Alignment
Using a frequency counter to monitor Terminal TP5, set L521 for a frequency of 44.545 MHz ±200 Hz. circuits are not required because band-pass filters are employed in the ORION wide-band synthesized radio receiver. IF/FM Detector Alignment TEST EQUIPMENT REQUIRED... -
Page 13: Squelch Adjustment
Tracking Data. To change the Squelch Tracking vibration, creating microphonics. The construction of Data, follow the iterative procedure set forth in the the ORION radio with its die-cast aluminum frame, cast "TRACKING DATA" section, except let the desired shield, and multiple board-mounting screws, provides a squelch threshold level replace the 8 +1, -0 dB SINAD high degree of immunity. -
Page 14: Serviceable Parts
LBI-38993 Radio Unit - Power Amplifier 110 Watts SERVICEABLE PARTS CAH-515H Control Unit - Switch Circuit CDF-368B/M Capacitor, 270 pF (136-153 MHz) B19/5CAAA03092 Capacitor, 220 pF (150-174 MHz) B19/5CAAA03097 Capacitor, 270 pF (136-153 MHz) B19/5CAAA03092 Capacitor, 220 pF (150-174 MHz) B19/5CAAA03097 No serviceable parts. -
Page 15: Diagnostic Procedures
Communications Service Monitor, of which several models are available. A typical test configuration for the ORION product is shown in Figure 5. It is also Figure 5 - Typical ORION Test Configuration... -
Page 16: Additional Tools Required
LBI-38993 ADDITIONAL TOOLS REQUIRED • RF Power Attenuator (30 dB, 150 watt, for transmitters with RF power beyond the capabilities of a Service Monitor) • Digital Voltmeter • Oscilloscope (optional) TRANSMITTER SYMPTOM DIAGNOSTIC PROCEDURE No RF power output. Program a Conventional System with frequencies given in Tables 2 and 3. Use "EDACS3"... - Page 17 LBI-38993 RECEIVER SYMPTOM DIAGNOSTIC PROCEDURE Low RF sensitivity. 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 coaxial cable P2 from J401 on the Synthesizer PWB. Do not disconnect any other cable.
- Page 18 LBI-38993 CONTROL UNIT SYMPTOM DIAGNOSTIC PROCEDURE Radio dead at power-on Check the battery connections and the Red lead A+ fuse on the power (display dark and no cable. lighted indicators) b. Turn the unit "OFF," then simultaneously press and hold the "EMERGENCY"...
-
Page 19: Error Codes
LBI-38993 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: RF Power Amplifier Logic/IF/Audio Synthesizer/Exciter/RX Front End... - Page 20 LBI-38993 message where xxx is the error code and the message is ERR = xxxx 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...
- Page 21 LBI-38993 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 Fatal system error trap number.
- Page 22 LBI-38993 Operational Software Fatal System Errors ERROR NAME MESSAGE CODE DESCRIPTION RADC_PITD_ERROR TRACKING Personality tracking data error. Re-program the tracking data. RADC_PIHW_ERROR PERSDATA Personality hardware data error. Re-program the personality. RADC_FREQ_ERROR FREQDATA Personality frequency data error. Re-program the personality. RADC_PITD_MALLOC_ SOFTWARE Personality tracking data malloc error.
- Page 23 LBI-38993 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.
- Page 24 Ericsson GE Mobile Communications, Inc. Moutain View Road • Lynchburg, Virginia 24502...