Motorola Cp150 Cp200 6880309n62 C Manual
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6880309N62-CJune, 2005 VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals 6-9 U201 Freq Synthesizer 24Ref osc XTAL20 25 Ref osc warp output 3.00 26Superfilter cap4.48 27 Superfilter base (NU) 3.76 28Superfilter output4.52 29 NC2 0 30Superfilter input4.96 31 NC3 0 32Prescaler input1.97 33 Prescaler ground GND 34Prescaler Vdd2.99 35 Prescaler Vref (NU) 1.97 36Digital Vdd2.99 37 TEST1 (NU) 0.01 38TEST2 (NU)0 39 Bias 2 3.38 (typ) (1.34 V in TX mode) 40Bias 11.50 (typ)(3.20 V in TX mode) 41 Modulation output 3.42 (typ) (1.62 V typ in TX mode) 42CCOMP (NU)0.05 43 Steering line IOUT 9.62 (typ) Depends on frequency 44PD groundGND 45 Steering line IADAPT 9.62 (typ) Depends on frequency 46Adapt switch (NU)0 47 Voltage from charge pump 12.8 48AUX1 output (NU)2.98 U251 VCO / Buffer1 TX VCO current adjust 4.50 2RX VCO current adjust4.35 3 Superfiltered input 4.51 4Collector RF in amp4.35 5 RX VCO base 1.27 6RX VCO emitter0.48 7 RX switch output (NU) 0 8RX buffered VCO output3.36 9 GND_FLAG GND 10TX buffered VCO output3.36 11 GND_BUFFERS GND Table 6-4. Troubleshooting Table for Board and IC Signals (Continued) IC Designator Pin Pin Function DC Voltage Comments (Condition)
June, 20056880309N62-C 6-10VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals U251 VCO / Buffer 12Prescaler output2.26 13 TX switch output (NU) 0.06 14Vcc_BUFFERS3.00 15 TX VCO emitter 0 (RX mode) 16TX VCO base0(RX mode) 17 GND_LOGIC GND 18Vcc_LOGIC3.00 19 TRB input 0.03 From U201-2 (RX mode) 20FLIP inputGND U310 5 V Regulator1 Vin 7.48 2GroundGND 3 Control input 7.48 4Bypass capacitor1.26 5Vout 4.96 U320 3.3 V Regulator 1GroundGND 2 Feedback 1.23 3Tap (NU)0 4 Vin 7.48 5Vo u t3.23 6 Sense (NU) 0 7Error (reset output)3.20 8 Shutdown input 7.48 U330 3 V Regulator 1Vin7.48 2Ground GND 3Control input7.48 4 Bypass capacitor 1.26 5Vo u t3.00 U401 Microprocessor1 PD4_SCK serial clock input 0 2PD5_SS3.23ASFIC chip select 3 PD6_VLIN 3.23 EEPROM chip select 4PG7_R_W3.21 5 PG6_AS 3.23 6PG0_XA133.23 7 PB7_ADDR15 0.026 8PB6_ADDR140.028 9 PB3_ADDR11 3.06 Table 6-4. Troubleshooting Table for Board and IC Signals (Continued) IC Designator Pin Pin Function DC Voltage Comments (Condition)
6880309N62-CJune, 2005 VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals 6-11 U401 Microprocessor 10PB1_ADDR93.05 11 PB2_ADDR10 0.16 12VDD3.23 13 VSS GND 14PBO_ADDR83.05 15 PB5_ADDR13 0.13 16PG1_XA140.20 17 PG4_XA17 3.17 18PG5_XA180 19 PG3_XA16 3.21 20PG2_XA150.30 21 PB4_ADDR12 0.22 22PF7_ADDR73.03 23 PF6_ADDR6 3.08 24PF5_ADDR53.06 25 PF4_ADDR4 0.16 26PF3_ADDR30.26 27 PF2_ADDR2 3.06 28PF1_ADDR13.06 29 PFO_ADDR0 3.05 30PC0_DATA00.69 31 PC1_DATA1 0.96 32PC2_DATA21.10 33 PC3_DATA3 0.81 34PC4_DATA40.62 35 PC5_DATA5 0.68 36PC6_DATA60.67 37 PC7_DATA7 0.73 38PH7_CSPROG3.05 39 VDDL 3.23 40VSSLGND 41 PH6_CSGP2 3.23 42PH5_CSGP13.23 43 PH4_CSIO 0 44PH3_PW43.21On/off control output 45 PH2_PW3 0 Table 6-4. Troubleshooting Table for Board and IC Signals (Continued) IC Designator Pin Pin Function DC Voltage Comments (Condition)
June, 20056880309N62-C 6-12VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals U401 Microprocessor 46PH1_PW23.00 47 PH0_PW1 3.23 Synth chip select 48XIRQ3.00 49 PI7 1.48 RX enable 50PI60.01TX enable 51 PI5 3.23 52PI40Green LED enable 53 PI3 0 Red LED enable 54PI20 55 PI1 0 56PI02.98Lock detect from U201-4 57 MODB_VSTBY 3.22 Boot mode enable 58MODA_LIR3.12 59 AVDD 3.23 60PE7_AN73.20 61 PE6_AN6 3.20 62PE5_AN52.91VOX threshold detect 63 PE4_AN4 0.73 RSSI input 64PE3_AN30.14 65 PE2_AN2 1.62 66PE1_AN10 - 3.3 VVolume control wiper 67 PE0_AN0 2.48 33% of battery voltage 68VRL0 69 VRH 3.20 70AV S SGND 71 PJ0_CSGP3 3.23 Side PTT button 72PJ1_CSGP40External MIC PTT 73 PJ2 3.23 74PJ33.23 75 PJ4 3.23 76PJ50 77 PJ6 3.23 Bottom option button 78PJ73.23Top option button 79 PA0_IC3 0 80PA 1 _ I C 21.57 81 PA2_IC1 3.00 Table 6-4. Troubleshooting Table for Board and IC Signals (Continued) IC Designator Pin Pin Function DC Voltage Comments (Condition)
6880309N62-CJune, 2005 VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals 6-13 U401 Microprocessor 82PA3_IC4_OC5_OC13.00 83 PA4_OC4_OC1 0 Squelch detect input 84PA 5 _ O C 3 _ O C 10Channel activity input 85 PA6_OC2_OC1 0 86PA 7 _ PA 1 _ O C 10 87 VSSR GND 88VDDR3.23 89 ECLK (NU) 1.60 90EXTAL1.70Clock from U451-28 91 XTAL 1.40 Not used 92VDDSYN0 93 XFC (NU) 0 94RESET3.20From U320 95 LVOUT 0 96IRQ3.20 97 PD0_RXD 3.23 98PD1_TXD1.9 99 PD2_MISO 0 100PD3_MOSI3.23 U402 EEPROM1 Chip select 3.23 From U401-3 2Serial data out0 3 Write protect 3.23 4VssGND 5 Serial data in 3.23 6Serial clock0 7Hold 3.23 8Vcc3.23 U404 Flash ROM1 A11 3.06 2A93.08 3A8 3.05 4A130.13 5 A14 0.31 6NC3.17 7 EN_WE 3.21 From U401-4 8Vcc3.23 9 RESET 3.20 Table 6-4. Troubleshooting Table for Board and IC Signals (Continued) IC Designator Pin Pin Function DC Voltage Comments (Condition)
June, 20056880309N62-C 6-14VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals U404 Flash ROM 10A163.17 11 A 1 5 0 . 3 0 12A120.22 13 A7 3.03 14A63.08 15 A5 3.06 16A40 17 A3 0.24 18A23.08 19 A1 3.05 20A03.05 21 D0 0.69 22D10.94 23 D2 1.08 24GNDGND 25 D3 0.78 26D40.59 27 D5 0.66 28D60.67 29 D7 0.75 30EN_CE3.01From U401-38 31 A10 0.16 32EN_OE0From U401-86 U451 ASFIC_CMP1 VDD for analog circuits 3.00 2DISC audio input1.34From U510 3 Ground for analog circuits GND 4DACU output0 5 DACR output 0 6DACG output2.38 (typ)Power set (TX mode) 7 VOX peak detector output 2.91 8PLCAP for DC integrator0.40 9 SQIN 0.01 10Universal audio input/output0 11 VDD for DACs 4.95 12SQCAP0 13 GCB2 general purpose output 0 Audio PA_EN (unsquelched) Table 6-4. Troubleshooting Table for Board and IC Signals (Continued) IC Designator Pin Pin Function DC Voltage Comments (Condition)
6880309N62-CJune, 2005 VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals 6-15 U451 ASFIC_CMP 14GCB1 general purpose output0 15 GCB0 general purpose output3.00 BW select (25 kHz mode) 16Squelch channel activity output0To U401-84 17 Squelch detect digital output 0 To U401-83 18PL/low speed data I/O1.50 19 High speed data I/O 3.00 20Chip select3.23From U401-2 21 Serial clock input 0 22Serial data input3.23 23 Ground for clock synthesizer GND 24Loop filter cap for clock syn0.74 25 PLCAP2 for LS integrator 1.17 26Not used0 27 Vdd for clock synthesizer 3.00 28Clock synthesizer output1.70 29 1200 Hz ref for MDC decode 3.00 30GNDDOGND 31 Ground for digital circuits GND 32Vdd for analog switches4.96 33 Vdd for digital circuits 3.00 3416.8 MHz master clock input1.54 35 GCB3 general purpose output 3.00 Internal MIC enable 36TX audio return from option0 37 GCB4 general purpose output 0 38GCB5 general purpose output0 39 RX audio send to option 1.48 40Modulation output1.50To U201-10 41 RX audio out to power amp 1.51 42Flat TX audio return from option0.20 43 RX audio return to option 1.50 44Flat TX audio send to option1.50 45 Vdd for audio path I/O filters 3.00 46Mic audio input1.50 47 Ground for audio path I/O filters GND 48Ext mic audio input (not used)0 Table 6-4. Troubleshooting Table for Board and IC Signals (Continued) IC Designator Pin Pin Function DC Voltage Comments (Condition)
June, 20056880309N62-C 6-16VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals Notes: U480 Dual Opamp1 Unit 1 output 2.48 2Unit 1 (-) input2.48 3 Unit 1 (+) input 2.46 4GroundGND 5 Unit 2 (+) input 0.28 6Unit 2 (-) input0.29 7 Unit 2 output 0 8Vcc4.96 U490 Audio Power Amp1 Enable/shutdown 0.12 (Unsquelched) 2Bias reference3.26(Unsquelched) 3 (+) input 3.26 (Unsquelched) 4(-) input3.27(Unsquelched) 5 (-) output 3.25 (Unsquelched) 6Vcc7.48(Unsquelched) 7Ground GND 8(+) output3.29(Unsquelched) U510 Dual Opamp1 Unit 1 output 1.75 2Unit 1 (-) input1.56 3 Unit 1 (+) input 1.55 4GroundGND 5 Unit 2 (+) input 1.55 6Unit 2 (-) input1.56 7 Unit 2 output 1.38 8Vcc4.96 1. All voltages are measured with a high-impedance digital voltmeter and expressed in volts DC relative to ground (0 V). 2. Voltages are measured with a DC input voltage of 7.50 + .02 volts DC applied to the battery connector (J301). 3. All voltages are measured in the squelched receive mode, unless otherwise indicated. 4. Voltages are identical for VHF and UHF models unless otherwise indicated. Table 6-4. Troubleshooting Table for Board and IC Signals (Continued) IC Designator Pin Pin Function DC Voltage Comments (Condition)
VHF (136-162 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486769Z02-A)7-56880309N62-CJune, 2005Chapter 7 VHF (136-162 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486769Z02-A) RX_FE_VHF_R1 CONTROLLER VCO_VHF_R1 TX_VHF_R1 RX_BE SYNTH_VHF_R1 V_SF V_STEER 5V 3V5R 16_8_MHZ 3V 5V LOCK MOD_IN PRESC SPI_CLK SPI_DATA_OUT SYNTH_CS TRB VCO_MOD RSSI5V5R 3V 5RUSWB+ 5V USWB+ V_SF V_STEER5T 3V 5T PWR_SET RX_OUT TX_ENA TX_INJUSWB+ 5V BW_SEL DEMOD IF_IN LOCK MOD_OUTPWR_SET RSSI SPI_CLK SPI_DATA_OUTSYNTH_CSTX_ENA USWB+ 3V 5R PRESC RX_INJ TRBTX_INJ VCO_MOD 5R IF_OUT RX_IN RX_INJ 5T 16_8_MHZ 3V 5R5T5V BW_SELDEMOD Figure 7-3. VHF (136-162 MHz) Radio Circuit Block Interconnect Diagram (8486769Z02-A)
7-6VHF (136-162 MHz) Schematic Diagrams, Overlays, and Parts Lists (8486769Z02-A)June, 20056880309N62-C 700mV (RF) 3.95V (Rx) 2.0V (Rx) 3.38V (Rx)3.95V (Rx)0V (Tx) 5.0V (Rx) 485mV (RF)500mV (RF) 445mV (RF) 705mV (RF) 3.9V (Rx) 125 mV (RF) 128 mV (RF) 0.74V (Rx) C30 30pF 0.1uF C995.6KRF BALUN 5 NC 4 63 2 1 R25T41 IO11 2 IO2 IO3 3IO4 4 NC TP21 CR41HSMS2829 C3668nH 30pF C22 1000pFL33 L3 C41 15pF 68nH FE_RF_INJ 0 R26 1 C44 20pF SH1 SHIELD68pF R23 22K L21 NUC34 R24 750R51 51 33pFC8 30pF 63 2 1 C7 T42 IF BALUN 5 NC 4 CR1 13 2 MMBD352 68nHL4 68nH L11000pFC20 C3 18pF C4 1 47pFC31 36pF SH40 SHIELDTP1 1 27pF C1 FE_5R L51 150nH 3.3pF C5 13 2 15pF C43 BFS540 Q21L31 68nHC33 C2 43pF27pF C29 R22 6.8K L32 10pF 68nHL4168nH NC 68nH R20 1% 6.8K 100 L40 1000pF R21 FE_RF_IN C26 L22 100nH C23 1000pF 20pF C40C35 33pFL52 C6560nH 25 6314 22pFUMT1Q22 68nH1000pFC25 C32 L2 C2468pF NU 1K FE_IF_OUT 36pFR40 C9 NU C42 RX_IN C51 82pF RX_INJ 5R IF_OUT Figure 7-4. VHF (136-162 MHz) Receiver Front End Schematic Diagram (8486769Z02-A)