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...
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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...
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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...
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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...
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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...
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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...
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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...
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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(+)...
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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...
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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...