Maintenance Manual EDACS IPE SERIES 800 MHz Duplex Portable Radio E
AE/LZB 119 1890 R1A MANUAL REVISION HISTORY Revision R1A Date 01/97 Reason For Change Original NOTE Repairs to this equipment should be made only by an authorized service technician or facility designated by the supplier. Any repairs, alterations or substitution of recommended parts made by the user to this equipment not approved by the manufacturer could void the user’s authority to operate the equipment in addition to the manufacturer’s warranty.
AE/LZB 119 1890 R1A TABLE OF CONTENTS PAGE SPECIFICATIONS........................................................................................................................................................................................... 4 DESCRIPTION ................................................................................................................................................................................................ 6 RELATED MANUALS .........................................
AE/LZB 119 1890 R1A SPECIFICATIONS GENERAL FCC Identification Number AXATR-352-A2 DOC Type Number 287 159 165A Model: IPE-100 (NON-DTMF) IPE-200 (DTMF) KRD 103 124/1 KRD 103 124/2 Dimensions (H x W x D): 5.1” x 2.1” x 1.7” (130 x 52 x 42 mm) Weight: 12 oz (with High capacity battery) Battery Life: Extra high capacity battery 16 Hrs. High capacity battery 10 Hrs. Maximum Capacity: EDACS Systems/Groups 64 Operating Voltage: 6.
AE/LZB 119 1890 R1A RECEIVER (25 kHz Channel) Frequency Range (MHz): 851-870 RF Input Impedance (Ohms): 50 Sensitivity (uV per EIA 603 12 dB SINAD): -118 dBm Selectivity (dB per EIA 603): -60 Frequency Stability (ppm): 1.5% Intermodulation Rejection (dB): -66 Spurious Rejection (dB): -65 FM Hum and Noise (dB): -41 Audio Response (per EIA 603): <3% Audio Output (Watts): 0.
AE/LZB 119 1890 R1A DESCRIPTION USER PROGRAMMABLE FEATURES The IPE Series radio is a synthesized, microprocessorbased, high performance portable FM radio designed for EDACS systems. The lightweight radio provides reliable communications operation in Enhanced Digital Access Communications System (EDACS) trunking environments. Dispatch features such as group calls, individual calls, agency/fleet calls, etc. are offered.
AE/LZB 119 1890 R1A Figure 1 - Block Diagram 7
AE/LZB 119 1890 R1A TRANSMITTER BLOCK Transmit Frequency Generation The main VCO (G481) has a frequency range from 928.2625 Mhz to 947.237 Mhz. This signal is mixed in the Ruth chip (N431) with the transmit offset frquency of 122.25 Mhz to generate the carrier and side band frequencies. The carrier and upper sideband are suppressed to leave only the desired transmit frequency. For example, the VCO frequency of 937.75 Mhz mixed with the offset frequency of 122.25 Mhz generates a transmit frequency of 860.
AE/LZB 119 1890 R1A PowerControl The output power from the power amplifier is regulated by an active feedback loop. The reference value POWLEV is set via a DIA converter in Bertram and is connected to the positive input of an op-amp. POWSENSE, the detected output power level, is connected to the negative input of the same op-amp. The op-amp produces an error voltage which controls the base of V3 12.
AE/LZB 119 1890 R1A The 450 KHz signal is filtered in a ceramic channel filter and put into the amplifier in the IC which amplifies the signal 44 dB. Another filter is used to complete the channel and noise filtering process before the signal is limited (58 CIB gain). Each filter (Z204, Z206) is a 4-pole bandpass filter with a center frequency of 450 KHz and a 3 dB bandwidth of +/- 15.0 KHz.
AE/LZB 119 1890 R1A OPTIONS AND ACCESSORIES The following is a list of the available options and accessories.
AE/LZB 119 1890 R1A Once service is available from an EDACS system, the SERV (Service) indicator comes on, and the CC SCAN goes off in the display. two digits show the seconds (separated by two dashes). The air time of the outgoing call includes the time taken to connect the call. Figure 6 - Service, Signal Strength and Battery Level Indicators Figure 8 - Length Of Call Displayed NOTE NOTE • The air time meter is only a guide; actual time may differ.
AE/LZB 119 1890 R1A A CALL IS UNSUCCESSFUL OR A CALL IN PROGRESS IS INTERRUPTED An error signal (a short beep) is heard. Observe the SERV indication in the display. Refer to Appendix 1 in the Operator’s Manual for further information. ⇒ Program the radio (personality and flash) ⇒ Troubleshoot the radio (determine if a problem is hardware or software) ⇒ Disassemble and reassemble the radio ⇒ Replace the circuit board ANSWERING AN INTERCONNECT CALL 1.
AE/LZB 119 1890 R1A the Equipment Setup required to PC Program the radio. Refer to the PC Programming manual (TQ-3373) for detailed software operating instruction. CAUTION • Do not carry the radio by the antenna. Do not use chemical cleaners, spray or petroleum based products. They may damage the radio housing. Personality Programming Mode The EDACS-2 PC Programmer cannot communicate with the radio unless the radio is in the Programming Mode. To place the IPE radio in Programming Mode: 1.
AE/LZB 119 1890 R1A M Starting The Program 8. Press again and observe that display reads PROGRAM. 9. Set the SERVICE switch on Troubleshoot Box to the 5V position. The TEK Utility Software will not run while in Windows. CAUTION Type "Flasher" to start the program. The Software Download Screen will appear as shown in Figure 11. Do not set SERVICE switch to the 12V position when using the Troubleshoot Box with the IPE Series radios. 10. Program the radio as indicated in the PC Programming Software.
AE/LZB 119 1890 R1A ----===> Flasher -- PC Download Software -- Copyright Ericsson GE, 1993 <===---ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ Directory ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»uÉÍÍÍÍÍÍÍÍÍÍ Message ÍÍÍÍÍÍÍÍÍÍ» º Directory: º º º º C:\TEK ÉÍÍÍÍÍÍÍÍÍ| Comm Port Selection |ÍÍÍÍÍÍÍÍ»ownload Options º º _________________º º º º . º Data will be transferred to the ºove Cursor º º ..
AE/LZB 119 1890 R1A • • • • Volume Control Knob Main printed circuit board ROA 117 2285 LCD Assembly SXA 120 4273 Antenna Connector Assembly SXK 107 3832 Volume Control Knob with set screw SXA 120 4237 1. Use a small hex wrench to loosen the set screw in the knob to remove the knob. ASSEMBLY DISASSEMBLY Refer to Figures 17-19 when disassembling and/or reassembling the radio unit or replacing any replaceable items. LCD Assseesbly 1. Radio Disassembly 2. 1. 2. 3. 4. 5. Be sure radio power is off.
AE/LZB 119 1890 R1A Radio Assembly 1. 2. 3. 4. 5. 6. Place the back cover down on a firm suface, battery compartment side down. Ensure that the RF/weatherproof gasket is positioned into the back cover groove correctly. Carefully mate the front cover with printed circuit board onto the back cover, observing that the RF/weatherproof gasket is not pinched or damaged as the two parts mate. Turn unit over and install the six (6) screws into the back cover.
AE/LZB 119 1890 R1A Start Power Switch On Battery Problem? No Any Display On The LCD? 1. Check to be sure battery contacts or not broke or bent. 2. Clean battery contacts. 3. Check battery or replace battery. Yes Software Problem? 1. Reload Personality (Use EDACS-2 Programmer) 2. Reload Flash (Use TEK Utility Software) Any Display On The LCD? No Yes No Problem Fixed? Yes Problem Fixed? Yes No End Hardware Problem? 1.
AE/LZB 119 1890 R1A ITEM DESCRIPTION PART NO.
AE/LZB 119 1890 R1A ITEM DESCRIPTION 1 Front Cover (System Version shown) 10 Volume Control knob w/setscrew 1 Front Cover (Scan) PART NO.
AE/LZB 119 1890 R1A ITEM DESCRIPTION PART NO. 1 Main Circuit Board ROA 117 2285 2 LCD Assembly SXA 120 4273 8 Adhesive Tape SXA 120 4289 Figure 19 - Disassembly Diagram - Main Circuit Board Ericsson Inc. Private Radio Systems Mountain View Road Lynchburg,Virginia 24502 1-800-592-7711 (Outside USA, 804-592-7711) AE/LZB 119 1890 R1A Printed in U.S.A.
