Motorola Sse 5000 6881094c12 A Manual
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6881094C12-ANovember 11, 2004 Theory of Operation: VOCON Board2-29 2.5.2.3.2 ESD Protection Circuitry NOTE:See Figure 12-13. NCN6186_ VOCON Universal Connector Circuit on page 12-19. Several components on the VOCON board protect the circuitry from ESD. The side connector signal lines have ESD protection components on them since they are exposed. These protection components include: • 5.6-V zeners VR205, VR206, VR220, and VR221 on the SB9600 lines, RS232 lines, microphone lines, and option-select...
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November 11, 20046881094C12-A 2-30Theory of Operation: VOCON Board Figure 2-10. VOCON Board Connector J102 Most of the signals are extensions of circuits described in other areas of this manual. However, the option-select pin is used to configure special modes: option-select 1 and option-select 2. This pin is controlled by accessories connected to the universal connector.Table 2-10. Pin Assignments for Universal Side Connector Pin NumberDescription 1 EXT_SPKR_NEG 2 EXT_SPKR_PLUS 3 LHDATA 4 EXT_MIC...
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6881094C12-ANovember 11, 2004 Theory of Operation: VOCON Board2-31 Table 2-11 outlines their functions as defined at the universal connector. 2.5.3 Display Module NOTE:The VOCON kit is only compatible with the 7285419E01 display module. The 7285419E01 display module is an integral 112 by 32 pixel bit-mapped, liquid-crystal display (LCD) module. The display module is connected to the VOCON board through flex connector J301. It uses chip-on-film technology and is not field repairable. The display module...
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November 11, 20046881094C12-A 2-32Theory of Operation: VOCON Board Programmable side buttons SB1, SB2, and SB3 are active-low (activated when side button voltage is 0V). When the side buttons are not pressed there are 2 V on the respective lines. S1 is a binary- coded switch. The output pins from U1, which are connected to GPIO pins on the dual-core processor, provide a four-bit binary word (signals RTA0, RTA1, RTA2, and RTA3) to the MCU, indicating to which of the 16 positions the rotary is set....
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6881094C12-ANovember 11, 2004 Theory of Operation: VOCON Board2-33 Figure 2-11. VOCON Transmit Audio Path 2.5.5.2 Receive Audio Path Refer to Figure 2-12. The receive audio data comes from the Abacus III IC U500 through the RF interface connector P201 pin 12 (RX_DATA) to the dual-core processor SRDB pin. The DSP decodes the data and sends it out through the CODEC_RX line to the GCAP II IC RX pin. The CODEC filters and converts the digital data into an analog audio signal, which, in turn, is sent to...
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November 11, 20046881094C12-A 2-34Theory of Operation: VOCON Board Figure 2-12. VOCON Receive Audio Path 2.5.6 Radio Power-Up/Power-Down Sequence The radio power-up sequence begins when the user closes the radio On/Off switch on the control top, placing 7.5 Vdc on the B+SENSE line. This voltage enables the pass element Q501 and Q502, enabling SW_B+ and GCAP_B+. When the GCAP II IC U501 detects a low-to-high voltage transition on GCAP_B+, it turns on and enables voltage supplies VSW1, VSW2, V2 and...
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Chapter 3 Test Equipment and Service Aids This chapter provides lists of test equipment and service aids, as well as information on field programming equipment that can be used in programming and servicing SSE 5000 radios at all of the three different levels of service. 3.1 Levels of Service Level 1 service procedures, shown below, are all performed on the outside of the radio: • Operating the radio • Programming the radio • Aligning the radio • Checking radio performance Level 2 service procedures are...
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November 11, 20046881094C12-A 3-2Test Equipment and Service Aids: Test Equipment RL73063BOS Adapter for SSE 5000 R1512_ or equivalentFunction Generator with Benchlinks Software R1730_ or equivalent120 W Single-Output DC Power Supply0-20 Vdc, 0-5 Amps current limitedBench supply for 7.5 Vdc R1736_ or equivalentScopemeter200 MHz R1150_ or equivalent*Code SynthesizerInjection of audio and digital signaling codes R1736_ or equivalent*Single-Channel Power/Voltmeter (AC)1 mV to 300 V, 10-Megohm...
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6881094C12-ANovember 11, 2004 Test Equipment and Service Aids: Service Aids 3-3 3.3 Service Aids Refer to Table 3-2 for a listing and description of the service aids designed specifically for servicing this family of radios. These kits and/or parts are available from the Radio Products and Services Division offices listed in “Appendix B: Replacement Parts Ordering”. While all of these items are available from Motorola, most are standard shop equipment items, and any equivalent item capable of the...
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November 11, 20046881094C12-A 3-4Test Equipment and Service Aids: Service Aids RLN4062 Hot-air workstation, 120V Tool for hot-air soldering/desoldering of surface-mounted integrated circuits3 0180386A78 Illuminated magnifying glass with lens attachment Illumination and magnification of components 3 0180302E51 Master lens system3 6684253C72 Straight prober3 6680384A98 Brush3 1010041A86 Solder (RMA type), 63/ 67, 0.5 mm diameter, 1 lb. spool 3 0180303E45 SMD tool kit (included with R1319A) 3 R1319...