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Cobra MR HH475 FLT BT/EU, Service Manual

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Cobra MR HH475 FLT BT/EU Service Manual Download Page 6

BT-ANT;  When  Bluetooth  receiving,  Bluetooth  RF  signal  comes  from  BT-ANT  via  U7  and  U13  then 

changes to voice signal from U13 Pin 4 output.     

 

 

ATIS(Automatic Transmitter Identification System) ONLY for HH475EU 

ATIS  circuit  consists  of  U5(1/4),U4(4/4)  and  CPU  U7,  when  receiving  the  AF  signal  from  U1  Pin  9  via 

U5(1/4) then pass to CPU U7 Pin 43, when transmitting AITS PWM signal form U7 Pin 45 output then via 

U4(4/4) pass to TX VCO Varicap D11 then mixes with the carrier to form the modulated signal. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Summary of Contents for MR HH475 FLT BT/EU

Page 1: ...mbly Instructions 8 Alignment Procedures 9 Adjustment Procedure 10 Wiring Diagram 11 Printed Circuit Board 12 Troubleshooting 15 Exploded View 16 Exploded View Part List 18 Electrical Packing Other Parts List 20 IC Lead Identification and Internal Diagram 52 Transistor Lead Identification 61 Voltage Chart 62 Schematic Diagram 66 Version 01 Date Mar 16 2010 ...

Page 2: ...g Voltage V 7 35 Hour 8 6W 7 4V 1000mAH Battery Lifetime Tx 5 Rx 5 Standby 90 Hour 16 1W 7 4V 1000mAH Memory Resented Flash Antenna Socket FIXED Display LCD With Background Light Built ln Speaker Diameter 40mm Impedance 8 Ohm Dimension 123 X 62 X 36 mm not including antenna Weight Without Battery 228g VHF RECEIVER Sensitivity For 12dB Sinad dBm 100 Rated audio output 5 Thd Speaker mW 250 Deviation...

Page 3: ... of 110 dBA kHz 4 0 4 9 Bluetooth part TX Average Power dBm 6 4 Max Drift DH1 KHz 25 25 Max Drift DH3 DH5 KHz 40 40 Frequency Deviation average KHz 115 175 Frequency Tolerance offset KHz 75 75 RX Sensitivity 0 1 BER dBm 70 Weather RECEIVER for Us Sensitivity For 12dB Sinad dBm 100 Sensitivity For WX Alarm 1050Hz Dev 3KHz dBm 100 Note Nominal specifications represent the design specifications All u...

Page 4: ...ess the second and third harmonics The signal is then fed into the antenna input and radiated out TX current is converted into a voltage signal that signal fed into U2 LM2904 2 2 for sampling U2 is the Automatic power control APC circuit When the unit is transmitting the audio signal is added to the TX VCO Varicap D11 The capacitance of D11 is varied following the audio signal and when mixed with ...

Page 5: ... pass to MCU U14 they will be transformed to voice data up to 20 seconds U9 AT4SDBD41B stores these voice data When recorder play the voice come out form MCU U7 Pin43 Then pass to U4 4 4 after that pass to U11 NJM2070 to amplify the recorder voice signal PLL Phase Lock Loop Circuit The receiver and transmitter both share the same PLL Phase Lock Loop Circuit to produce the carrier or the receive fr...

Page 6: ...omatic Transmitter Identification System ONLY for HH475EU ATIS circuit consists of U5 1 4 U4 4 4 and CPU U7 when receiving the AF signal from U1 Pin 9 via U5 1 4 then pass to CPU U7 Pin 43 when transmitting AITS PWM signal form U7 Pin 45 output then via U4 4 4 pass to TX VCO Varicap D11 then mixes with the carrier to form the modulated signal 6 ...

Page 7: ... B 7 4V CALL BEEP B 7 4V AF SW 1050HZ ATIS 1050Hz ATIS AF SW AF MUTE RX SW VTX VCO RX SW TX 5V RX 5V RX SW V TXPOW VCC 5V APC LPF SAVE Q10 MB3904 VR1 Q11 MB3904 CLONE 156 163MHz SAW BPF 156 163MHz F2 HDF160B VOL 10K VR3 A U5 D LM324 1 4 LPF X1 CBD450C24 LOCK DATA CLK CS D4 LCD BACK LAMP RF PART CPU PART BATTERIES Li POLYMER_7 4V 1 3 4 5 6 2 J2 SP MIC JACK Q1 2SC4901 C1 C5 C12 L1 L2 C62 C16 20 95MH...

Page 8: ...ONS To remove the front and rear panels from the main chassis 1 Remove the SPK MIC and VOL SQL knob from the main unit 2 Remove 4 screws from the rear housing for main unit 3 Detach the rear housing from the front housing 8 ...

Page 9: ...e following adjustments A TEST EQUIPMENT 1 DC Power Supply 7 2V DC 0 15V 3A max 2 RF Power Meter 10 W 50 Ohm 100 200 MHz 3 RF Signal Generator 100 200 MHz 50 ohm termination 4 FM Linear Detector FMLD 100 200 MHz 5 Frequency Counter 1 500 MHz 6 Oscilloscope 20 MHz 7 Distortion Meter 8 SINADDER Trademark of Helper Instruments Co 9 Audio Oscillator 10 Toggle Switch for use as PTT switch Fig 3 1 RF PO...

Page 10: ...antenna coupler output to a frequency counter 2 Set channel to CH01 156 050 MHz 3 Adjust VC1 to obtain a frequency reading 156 050 MHz 200Hz 4 VR2 Modulation 2 1 Connect the antenna coupler output to an FM linear detector 2 Connect Audio Oscillator to Microphone Jack 3 Set unit to transmit mode 4 Set audio oscillator output to 23dBm 1 kHz 5 Adjust VR2 to obtain 4 5 kHz deviation Remark 1 Please re...

Page 11: ...WIRING DIAGRAM 11 ...

Page 12: ...PRINTED CIRCUIT BOARD Main PCB Top View VR2 VC1 12 ...

Page 13: ...PRINTED CIRCUIT BOARD Main PCB Bottom View L18 L20 13 ...

Page 14: ...PRINTED CIRCUIT BOARD Cradle Charger PCB View Top View Bottom View 14 ...

Page 15: ... F1 and F2 5 Low receiver sensitivity Check antenna and connector for possible corrosion or bad connection Failure of the output from Q7 Q8 Q2 U1 Check the output level of local OSC 6 No transmit TX Defective PTT switch Defective regulator U8 Check TP1 voltage 0 5 4V Check power transmits circuit Q12 Q6 D1 D2 and Q1 Check power control circuit Q17 Q18 Q24 Check power control circuit U2 7 Low RF po...

Page 16: ...EXPLODED VIEW for HH475 Main Part 16 ...

Page 17: ...EXPLODED VIEW for Battery and Antenna 17 ...

Page 18: ...0 19 SCREW TS WRH L5 D2 CZ F RWB Four 260100191 00000 10 20 TM833FBEUL PCBA MAIN PCBA R0 COBRA EU 330200008 00000 10 21 M COVR MU AL L67 W33 2 H6 260300141 11001 10 22 O RING MU BK RUB H1 4OD L118 5W62 3U2X 270200053 12001 10 23 M WASH MU CU NI L10 55 W1 09 H0 2 Two 260300005 11001 10 24 SCREW TS RH L8 D2 6 SUS C Two 260100022 00000 10 25 M BRKT MU SS L20 W19 H10 SUS304 260302983 11000 10 26 M SHA...

Page 19: ...4 05W59 270200380 13001 10 47 P RCAB BT ABS BK TM833 3U 2X 270100953 11001 10 48 CON COMM PB T0 2H5WD GD C Two 260300377 11001 10 49 CON CHAR PB T0 2H3 5WD GD UNIT Three 260300380 11001 10 Antenna Part Location Codes Description Mfr s Part No 50 P CAP BU ABS BK TM833 832 ANT 3U2X 270102110 11001 10 51 P SLV ANT BU PU BK TM832EUL ANT 3U2X 270102093 12001 10 52 SPRING COS ANT SW CU WD1 L158 5 OD 6 8...

Page 20: ...10039 00001 10 36 INSU SHET PVC W L35 4 W33 4 D0 1 TM832FE 270110041 00001 10 FOAM CUH SILI L12W6 5T3 GREY 320100009 00001 10 FOAM HDR SPNG L40W4T3 Grey Four 320100664 00001 10 FOAM CUH SPNG L9W7T1 White 320100696 00000 10 FOAM SPON SPNG L33 4W3 0T2 0 BLACK TM832 320101829 00001 10 TM833FBEUL PCBA MAIN SOLDERING PCBA R0 330201917 00000 10 C109 CAP RELE 100 uF M 10V D5 H8 280201079 00000 10 C178 CA...

Page 21: ...00 10 C117 CAP CCER 100 nF K 16 VDC 0402 X7R 280200343 00000 10 C118 CAP CCER 100 nF K 16 VDC 0402 X7R 280200343 00000 10 C119 CAP CCER 100 nF K 16 VDC 0402 X7R 280200343 00000 10 C120 CAP CCER 100 nF K 16 VDC 0402 X7R 280200343 00000 10 C126 CAP CCER 100 nF K 16 VDC 0402 X7R 280200343 00000 10 C129 CAP CCER 100 nF K 16 VDC 0402 X7R 280200343 00000 10 C136 CAP CCER 220 nF Z 16 VDC 0402 Y5V 2802003...

Page 22: ...SOT23 MMBT3904LT1 280400121 00000 10 Q30 TRS BP NPN SOT23 MMBT3904LT1 280400121 00000 10 R9 RES TFC 4 7 Kohm 0402 J 1 16W 280101287 00000 10 R23 RES TFC 68 ohm 0402 J 1 16W 280101403 00000 10 R26 RES TFC 4 7 Kohm 0402 J 1 16W 280101287 00000 10 R40 RES TFC 10 Kohm 0402 J 1 16W 280100937 00000 10 R41 RES TFC 47 ohm 0402 J 1 16W 280101305 00000 10 R42 RES TFC 10 Kohm 0402 J 1 16W 280100937 00000 10 ...

Page 23: ...6W 280100937 00000 10 R208 RES TFC 150 ohm 0402 J 1 16W 280101007 00000 10 R209 RES TFC 4 7 Kohm 0402 J 1 16W 280101287 00000 10 R211 RES TFC 0 ohm 0402 J 1 16W 280100909 00000 10 R217 RES TFC 330 ohm 0402 J 1 16W 280101196 00000 10 R219 RES TFC 330 ohm 0402 J 1 16W 280101196 00000 10 R220 RES TFC 330 ohm 0402 J 1 16W 280101196 00000 10 R304 RES TFC 0 ohm 0402 J 1 16W 280100909 00000 10 RT2 THERM ...

Page 24: ...327 00000 10 C38 CAP CCER 1000 pF K 50 VDC 0402 X7R 1570 280200327 00000 10 C39 CAP CCER 1000 pF K 50 VDC 0402 X7R 1570 280200327 00000 10 C42 CAP CCER 100 nF K 16 VDC 0402 X7R 280200343 00000 10 C43 CAP CCER 1000 pF K 50 VDC 0402 X7R 1570 280200327 00000 10 C44 CAP CCER 100 nF K 16 VDC 0402 X7R 280200343 00000 10 C45 CAP CCER 1000 pF K 50 VDC 0402 X7R 1570 280200327 00000 10 C46 CAP CCER 1000 pF ...

Page 25: ... 25 VDC 0402 X7R 280200336 00000 10 C97 CAP CCER 470 pF J 50 VDC 0402 COG 280200840 00000 10 C98 CAP CCER 10 nF K 25 VDC 0402 X7R 280200336 00000 10 C99 CAP CCER 470 pF J 50 VDC 0402 COG 280200840 00000 10 C103 CAP CCER 470 pF J 50 VDC 0402 COG 280200840 00000 10 C104 CAP CCER 1 5 pF C 50 VDC 0402 COG 280200760 00000 10 C105 CAP CCER 100 pF J 50 VDC 0402 COG 1553 0 280200729 00000 10 C106 CAP CCER...

Page 26: ...CTAN 22 uF M 10 VDC CASEA 280201245 00000 10 C171 CAP CCER 1 uF Z 6 3 VDC 0402 Y5V 280200290 00000 10 C172 CAP CCER 1 uF Z 6 3 VDC 0402 Y5V 280200290 00000 10 C173 CAP CCER 220 pF J 50 VDC 0402 COG 280200786 00000 10 C174 CAP CCER 22 pF G 50 VDC 0603 NPO 280200638 00000 10 C175 CAP CCER 8 pF D 50 VDC 0402 COG 280200883 00000 10 C182 CAP CCER 3300 pF K 50 VDC 0402 X7R 1570 280200423 00000 10 C183 C...

Page 27: ... 25 VDC 0402 X7R 280200336 00000 10 C241 CAP CCER 10 pF J 50 VDC 0402 NPO 1570 03 280200583 00000 10 C248 CAP CCER 470 pF J 50 VDC 0402 COG 280200840 00000 10 C249 CAP CCER 470 pF J 50 VDC 0402 COG 280200840 00000 10 C250 CAP CCER 1 uF Z 6 3 VDC 0402 Y5V 280200290 00000 10 C251 CAP CCER 100 nF K 16 VDC 0402 X7R 280200343 00000 10 D1 DIO SW ISS356 1V 0 1 A USM 280600248 00000 10 D2 DIO SW ISS356 1V...

Page 28: ...000 10 L30 IND SMD 0 1 uH 5 Q8 0603 SDCL1608CR10 280300668 00000 10 L33 IND SMD 2 2 uH 5 Q30 2520 NLV25T 2R2J 280300620 00000 10 L34 IND SMD 2 2 uH 5 Q30 2520 NLV25T 2R2J 280300620 00000 10 Q1 TRS BP NPN SOT23 2SC4901 280400127 00000 10 Q2 TRS BP NPN SOT23 2SC4901 280400127 00000 10 Q3 TRS BP NPN SOT23 2SC3356 280400117 00000 10 Q4 TRS BP NPN SOT23 2SC4901 280400127 00000 10 Q5 TRS BP NPN SOT23 2S...

Page 29: ...00956 00000 10 R29 RES TFC 33 Kohm 0402 J 1 16W 280101205 00000 10 R30 RES TFC 47 Kohm 0402 J 1 16W 280101294 00000 10 R31 RES TFC 3 3 Kohm 0402 J 1 16W 280101201 00000 10 R32 RES TFC 8 2 Kohm 0402 J 1 16W 280101431 00000 10 R33 RES TFC 100 Kohm 0402 J 1 16W 280100941 00000 10 R34 RES TFC 100 Kohm 0402 J 1 16W 280100941 00000 10 R35 RES TFC 100 Kohm 0402 J 1 16W 280100941 00000 10 R36 RES TFC 100 ...

Page 30: ...10 R96 RES TFC 100 Kohm 0402 F 1 16W 280100939 00000 10 R98 RES TFC 200 Kohm 0402 F 1 16W 280101079 00000 10 R99 RES TFC 200 Kohm 0402 F 1 16W 280101079 00000 10 R100 RES TFC 100 Kohm 0402 F 1 16W 280100939 00000 10 R101 RES TFC 2 2 Kohm 0402 J 1 16W 280101100 00000 10 R102 RES TFC 0 39 ohm 1206 J 1 8W 280101263 00000 10 R103 RES TFC 0 39 ohm 1206 J 1 8W 280101263 00000 10 R104 RES TFC 0 39 ohm 12...

Page 31: ...6W 280100937 00000 10 R160 RES TFC 36 Kohm 0402 J 1 16W 280101235 00000 10 R161 RES TFC 36 Kohm 0402 J 1 16W 280101235 00000 10 R164 RES TFC 22 Kohm 0402 F 1 16W 280100338 00000 10 R165 RES TFC 22 ohm 0402 J 1 16W 280101123 00000 10 R166 RES TFC 33 Kohm 0402 J 1 16W 280101205 00000 10 R167 RES TFC 33 Kohm 0402 J 1 16W 280101205 00000 10 R168 RES TFC 820 ohm 0402 J 1 16W 280101428 00000 10 R170 RES...

Page 32: ...TM832EUL 3U2X 270101071 12001 10 46 O RING BD BK RUB H5 4OD L94 05W59 270200380 13001 10 44 FOAM HDR SPNG L40W8T1 Black Two 320100666 00001 10 TM833FBEUL E M FRONT HOUSING R0 COBRA 330500023 00000 10 41 INSU TAPE FILM BK L W D9 4 WATERPROO 270110368 00000 10 7 INSU SHET FILM W L W D6 4 WATERPROOF 270110610 00000 10 42 FOAM CUH SPNG D9 5T1 4 SS BLACK TM833FBE 320101869 00001 10 TAPE A DS L6 4 W6 4 ...

Page 33: ...UB H1 4OD L118 5W62 3U2X 270200053 12001 10 6 FOAM HDR RUBB L34 1W26 3T4 7 GREY DS022 320100108 00001 10 FOAM HDR SPNG L30W15T1 Yellow 320100727 00000 10 32 FOAM HDR RUBB D1 8T1 NA Black SCREW CAP Five 320100751 00001 10 TM833FBEUL E M ANT R0 COBRA EU 330500026 00000 10 51 P SLV ANT BU PU BK TM832EUL ANT 3U2X 270102093 12001 10 50 P CAP BU ABS BK TM833 832 ANT 3U2X 270102110 11001 10 TM833FBEUL U ...

Page 34: ...R110 RES TFC 10 Kohm 0603 J 1 16W 280100938 00000 10 R111 RES TFC 1 Kohm 0603 J 1 16W 280100930 00000 10 R112 RES TFC 82 Kohm 0603 F 1 16W 280101433 00000 10 R113 RES TFC 1 Kohm 0603 J 1 16W 280100930 00000 10 R114 RES TFC 1 5 Kohm 0603 J 1 16W 280101012 00000 10 R115 RES TFC 910 ohm 0603 J 1 16W 280101451 00000 10 R116 RES TFC 10 Kohm 0603 J 1 16W 280100938 00000 10 R117 RES TFC 3 3 Kohm 0603 J 1...

Page 35: ...001 10 PULP TY TM833FBEUL L315 W185 H75 COBRA R 300309231 01001 10 CTN OT B B L345W335H220 TM833FBEUL REV2 300600222 00002 10 WIRING TIE NYLON L240 BK 320100137 00001 10 TM833USL ACSY R0 COBRA USA BLK PKG MAT 330800722 00000 10 SPRING TES BELT SS WD0 6 L12 5 260200095 00000 10 M SHAF MU SS L26 W32 H32 FOR BELT CLIP 260300953 00001 10 P CLIP BU ABS PC BK TM833 832 TOP 3U2X 270102098 11001 10 P CLIP...

Page 36: ...10039 00001 10 36 INSU SHET PVC W L35 4 W33 4 D0 1 TM832FE 270110041 00001 10 FOAM CUH SILI L12W6 5T3 GREY 320100009 00001 10 FOAM HDR SPNG L40W4T3 Grey Four 320100664 00001 10 FOAM CUH SPNG L9W7T1 White 320100696 00000 10 FOAM SPON SPNG L33 4W3 0T2 0 BLACK TM832 320101829 00001 10 TM833FBEUL PCBA MAIN SOLDERING PCBA R0 330201917 00000 10 MIC CDR O 52dB 3V D9 7 T4 5 LYS M9745 290100001 00000 10 C1...

Page 37: ...00 10 C117 CAP CCER 100 nF K 16 VDC 0402 X7R 280200343 00000 10 C118 CAP CCER 100 nF K 16 VDC 0402 X7R 280200343 00000 10 C119 CAP CCER 100 nF K 16 VDC 0402 X7R 280200343 00000 10 C120 CAP CCER 100 nF K 16 VDC 0402 X7R 280200343 00000 10 C126 CAP CCER 100 nF K 16 VDC 0402 X7R 280200343 00000 10 C129 CAP CCER 100 nF K 16 VDC 0402 X7R 280200343 00000 10 C136 CAP CCER 220 nF Z 16 VDC 0402 Y5V 2802003...

Page 38: ...SOT23 MMBT3904LT1 280400121 00000 10 Q30 TRS BP NPN SOT23 MMBT3904LT1 280400121 00000 10 R9 RES TFC 4 7 Kohm 0402 J 1 16W 280101287 00000 10 R23 RES TFC 68 ohm 0402 J 1 16W 280101403 00000 10 R26 RES TFC 4 7 Kohm 0402 J 1 16W 280101287 00000 10 R40 RES TFC 10 Kohm 0402 J 1 16W 280100937 00000 10 R41 RES TFC 47 ohm 0402 J 1 16W 280101305 00000 10 R42 RES TFC 10 Kohm 0402 J 1 16W 280100937 00000 10 ...

Page 39: ...6W 280100937 00000 10 R208 RES TFC 150 ohm 0402 J 1 16W 280101007 00000 10 R209 RES TFC 4 7 Kohm 0402 J 1 16W 280101287 00000 10 R211 RES TFC 0 ohm 0402 J 1 16W 280100909 00000 10 R217 RES TFC 330 ohm 0402 J 1 16W 280101196 00000 10 R219 RES TFC 330 ohm 0402 J 1 16W 280101196 00000 10 R220 RES TFC 330 ohm 0402 J 1 16W 280101196 00000 10 R304 RES TFC 0 ohm 0402 J 1 16W 280100909 00000 10 RT2 THERM ...

Page 40: ...327 00000 10 C38 CAP CCER 1000 pF K 50 VDC 0402 X7R 1570 280200327 00000 10 C39 CAP CCER 1000 pF K 50 VDC 0402 X7R 1570 280200327 00000 10 C42 CAP CCER 100 nF K 16 VDC 0402 X7R 280200343 00000 10 C43 CAP CCER 1000 pF K 50 VDC 0402 X7R 1570 280200327 00000 10 C44 CAP CCER 100 nF K 16 VDC 0402 X7R 280200343 00000 10 C45 CAP CCER 1000 pF K 50 VDC 0402 X7R 1570 280200327 00000 10 C46 CAP CCER 1000 pF ...

Page 41: ... 25 VDC 0402 X7R 280200336 00000 10 C97 CAP CCER 470 pF J 50 VDC 0402 COG 280200840 00000 10 C98 CAP CCER 10 nF K 25 VDC 0402 X7R 280200336 00000 10 C99 CAP CCER 470 pF J 50 VDC 0402 COG 280200840 00000 10 C103 CAP CCER 470 pF J 50 VDC 0402 COG 280200840 00000 10 C104 CAP CCER 1 5 pF C 50 VDC 0402 COG 280200760 00000 10 C105 CAP CCER 100 pF J 50 VDC 0402 COG 1553 0 280200729 00000 10 C106 CAP CCER...

Page 42: ...CTAN 22 uF M 10 VDC CASEA 280201245 00000 10 C171 CAP CCER 1 uF Z 6 3 VDC 0402 Y5V 280200290 00000 10 C171 CAP CCER 47 pF J 50 VDC 0402 COG 280200838 00000 10 C172 CAP CCER 1 uF Z 6 3 VDC 0402 Y5V 280200290 00000 10 C173 CAP CCER 220 pF J 50 VDC 0402 COG 280200786 00000 10 C174 CAP CCER 22 pF G 50 VDC 0603 NPO 280200638 00000 10 C175 CAP CCER 8 pF D 50 VDC 0402 COG 280200883 00000 10 C182 CAP CCER...

Page 43: ... 25 VDC 0402 X7R 280200336 00000 10 C241 CAP CCER 10 pF J 50 VDC 0402 NPO 1570 03 280200583 00000 10 C248 CAP CCER 470 pF J 50 VDC 0402 COG 280200840 00000 10 C249 CAP CCER 470 pF J 50 VDC 0402 COG 280200840 00000 10 C250 CAP CCER 1 uF Z 6 3 VDC 0402 Y5V 280200290 00000 10 C251 CAP CCER 100 nF K 16 VDC 0402 X7R 280200343 00000 10 D1 DIO SW ISS356 1V 0 1 A USM 280600248 00000 10 D2 DIO SW ISS356 1V...

Page 44: ...000 10 L30 IND SMD 0 1 uH 5 Q8 0603 SDCL1608CR10 280300668 00000 10 L33 IND SMD 2 2 uH 5 Q30 2520 NLV25T 2R2J 280300620 00000 10 L34 IND SMD 2 2 uH 5 Q30 2520 NLV25T 2R2J 280300620 00000 10 Q1 TRS BP NPN SOT23 2SC4901 280400127 00000 10 Q2 TRS BP NPN SOT23 2SC4901 280400127 00000 10 Q3 TRS BP NPN SOT23 2SC3356 280400117 00000 10 Q4 TRS BP NPN SOT23 2SC4901 280400127 00000 10 Q5 TRS BP NPN SOT23 2S...

Page 45: ...00956 00000 10 R29 RES TFC 33 Kohm 0402 J 1 16W 280101205 00000 10 R30 RES TFC 47 Kohm 0402 J 1 16W 280101294 00000 10 R31 RES TFC 3 3 Kohm 0402 J 1 16W 280101201 00000 10 R32 RES TFC 8 2 Kohm 0402 J 1 16W 280101431 00000 10 R33 RES TFC 100 Kohm 0402 J 1 16W 280100941 00000 10 R34 RES TFC 100 Kohm 0402 J 1 16W 280100941 00000 10 R35 RES TFC 100 Kohm 0402 J 1 16W 280100941 00000 10 R36 RES TFC 100 ...

Page 46: ...10 R96 RES TFC 100 Kohm 0402 F 1 16W 280100939 00000 10 R98 RES TFC 200 Kohm 0402 F 1 16W 280101079 00000 10 R99 RES TFC 200 Kohm 0402 F 1 16W 280101079 00000 10 R100 RES TFC 100 Kohm 0402 F 1 16W 280100939 00000 10 R101 RES TFC 2 2 Kohm 0402 J 1 16W 280101100 00000 10 R102 RES TFC 0 39 ohm 1206 J 1 8W 280101263 00000 10 R103 RES TFC 0 39 ohm 1206 J 1 8W 280101263 00000 10 R104 RES TFC 0 39 ohm 12...

Page 47: ...6W 280100937 00000 10 R160 RES TFC 36 Kohm 0402 J 1 16W 280101235 00000 10 R161 RES TFC 36 Kohm 0402 J 1 16W 280101235 00000 10 R164 RES TFC 22 Kohm 0402 F 1 16W 280100338 00000 10 R165 RES TFC 22 ohm 0402 J 1 16W 280101123 00000 10 R166 RES TFC 33 Kohm 0402 J 1 16W 280101205 00000 10 R167 RES TFC 33 Kohm 0402 J 1 16W 280101205 00000 10 R168 RES TFC 820 ohm 0402 J 1 16W 280101428 00000 10 R170 RES...

Page 48: ...1071 12001 10 46 O RING BD BK RUB H5 4OD L94 05W59 270200380 13001 10 44 FOAM HDR SPNG L40W8T1 Black Two 320100666 00001 10 TM833FBEUL E M BACK HOUSING R0 COBRA E 330500024 00000 10 WASHER MS NI OD6 2 ID3 3 1 LOCK Two 260200163 00001 10 INSU WASH FIBER R L W D6 0 ID3 0xOD4 270102267 00001 10 24 SCREW TS RH L8 D2 6 SUS C Two 260100022 00000 10 30 SCREW TS RH L10 D3 BZ SUS F BLACK 260101177 00000 10...

Page 49: ... KEY PTT RUB G 1K TM832 270200131 11001 10 39 SPK M 8OHM 1W D40 T5 2 TEK404P 8 OHM1W 290100070 00000 10 40 FOAM SPK NYL D37 3T SS BLACK TM833FBEU 320101847 00001 10 TM833FBEUL PCBA MIC PCBA R0 330202786 00000 10 8 PCB SS FR4 GP MIC 1 4 L6W8T1 0 TM833FBEU 250102596 00003 10 9 MI MIC CDR U 38dB 10V D6 0 T2 7 EM 27PX 5 290100345 00000 10 TM833FBEUL U CHG UNIT R0 COBRA EU 330100063 00000 10 TM832FEUL ...

Page 50: ...000 10 R110 RES TFC 10 Kohm 0603 J 1 16W 280100938 00000 10 R111 RES TFC 1 Kohm 0603 J 1 16W 280100930 00000 10 R112 RES TFC 82 Kohm 0603 F 1 16W 280101433 00000 10 R113 RES TFC 1 Kohm 0603 J 1 16W 280100930 00000 10 R114 RES TFC 1 5 Kohm 0603 J 1 16W 280101012 00000 10 R115 RES TFC 910 ohm 0603 J 1 16W 280101451 00000 10 R116 RES TFC 10 Kohm 0603 J 1 16W 280100938 00000 10 R117 RES TFC 3 3 Kohm 0...

Page 51: ...190H80 300309180 00001 10 PULP TY TM833FBEUL L315 W185 H75 COBRA R 300309231 01001 10 CTN OT B B L345W180H220 TM833FBUSL REV2 300600221 00002 10 WIRING TIE NYLON L240 BK 320100137 00001 10 TM833USL ACSY R0 COBRA USA BLK PKG MAT 330800722 00000 10 SPRING TES BELT SS WD0 6 L12 5 260200095 00000 10 M SHAF MU SS L26 W32 H32 FOR BELT CLIP 260300953 00001 10 P CLIP BU ABS PC BK TM833 832 TOP 3U2X 270102...

Page 52: ... 4 5 6 7 1 8 14 13 12 11 10 9 15 16 16TSSOP PIN FUNCTION 1 1 OSC 2 2 OSC 3 MIXER OUT 4 VCC 5 IF IN 6 BY PASS 7 FILTER OUTPUT 8 FILTER INPUT 9 AUDIO 10 DISCRIMINATOR 11 IF OUTPUT 12 RSSI 13 COMP OUTPUT 14 COMP INPUT 15 GND 16 MIXER U BA FV 1 4116 52 ...

Page 53: ...U NJM M 2 2904 PIN FUNCTION 1 A OUTPUT 2 A INPUT 3 A INPUT 4 GND 5 B INPUT 6 B INPUT 7 B OUTPUT 8 V U3 XC61CN2702MR Block Diagram CMOS Output 53 ...

Page 54: ...U4 U5 324 NJM V 54 ...

Page 55: ...s the open drain output O 6 Clock input 7 DATA Serial data input 8 EN Input of enable signal Serial data interface I 9 BO Output of buffer amplifier The local signal passes through the buffer amplifier O 10 Oscillator output O 11 PLL reference input Typically connected to a TCXO output I 12 Switchover terminal to contr ol time cons tant of loop filter It is the open drain output When switched off ...

Page 56: ...2CTS C1OUT AN8 RB8 PMA7 C2OUT AN9 RB9 TMS PMA13 CV REF AN10 RB10 TDO PMA12 AN11 RB11 V DD PGC2 EMUC2 AN6 OCFA RB6 PGD2 EMUD2 AN7 RB7 PMA8 U2TX SCL2 CN18 RF5 PMA9 U2RX SDA2 CN17 RF4 PMD5 RE5 PMD6 RE6 PMD7 RE7 PMA5 SCK2 CN8 RG6 VDD C1IN AN5 CN7 RB5 C1IN AN4 CN6 RB4 C2IN AN3 CN5 RB3 C2IN AN2 SS1 CN4 RB2 PMA4 SDI2 CN9 RG7 PMA3 SDO2 CN10 RG8 PGC1 EMUC1 VREF AN1 CN3 RB1 PGD1 EMUD1 PMA6 VREF AN0 CN2 RB0 ...

Page 57: ...04B502MR U A 9 45 041 T DB D SU 1 2 3 4 8 7 6 5 SI SCK RESET CS SO GND VCC WP FLASH MEMORY ARRAY PAGE BYTES 256 264 BUFFER BYTES 2 256 264 BUFFER BYTES 1 256 264 I O INTERFACE SCK CS RESET VCC GND WP SO SI 57 ...

Page 58: ...U10 U12 XC6204B332MR U11 NJM2070 1 2 3 4 5 6 7 8 NC V OUTPUT GND GND NC INPUT INPUT 1 3 2 4 5 6 7 8 NC V OUTPUT GND GND NC INPUT INPUT BIAS 300 50K 100K 58 ...

Page 59: ...U1 TL DBVR 02 431 A OUTPUT A INPUT A INPUT V B INPUT B INPUT B OUTPUT D OUTPUT D INPUT D INPUT V C INPUT C INPUT C OUTPUT A D C B V INPUT INPUT V OUTPUT U101 NJM3403AM 59 ...

Page 60: ...U401 HT1621 DICE 60 ...

Page 61: ... 1 3 1 3 2 Terminal No 1 Drain output 2 Source GND 3 Gate input RD MVS 07 1 1 2 3 Drain Gate Source 2 1 3 2SK210Y TRANSISTOR LEAD IDENTIFICATION 1 Gate 1 2 Gate 2 3 Drain 4 Source 1 Base 2 Emitter 3 Collector 1 Gate 2 Drain 3 Source 2 1 2 3 Emitter Base Collector KTC9014 2 1 3 2 772 SB P 1 2 3 Emitter Collector Base 61 ...

Page 62: ...U4 NJM324V PIN 1 2 3 4 5 6 7 8 9 10 11 12 Tx V 4 80 1 86 1 86 1 86 1 86 1 86 1 86 0 1 78 Rx V Pulse 1 56 1 30 4 80 PIN 13 14 Tx V 1 80 1 80 Rx V 5 00 0 U5 NJM324V PIN 1 2 3 4 5 6 7 8 9 10 11 12 Rx V 1 70 1 70 1 70 4 80 2 40 2 40 2 40 2 40 2 40 2 38 0 1 70 PIN 13 14 Rx V 1 70 1 70 U6 GP214D PIN 1 2 3 4 5 6 7 8 9 10 11 12 FIN1 VCC GND EN BO OSCO OSCI SW Rx V 4 82 4 82 1 63 0 4 81 0 0 0 3 65 3 89 4 7...

Page 63: ...5 6 7 8 NC IN FIL GND GND OUT VCC NC Rx V 0 0 0 60 0 0 3 26 7 16 0 U12 XC6204B332MR PIN 1 2 3 4 5 Tx 7 2 0 3 30 0 3 30 Rx 7 2 0 3 30 0 3 30 U101 NJM3403AM PIN 1 2 3 4 5 6 7 8 9 10 11 12 Char 0 4 00 2 50 12 00 0 50 4 00 0 00 4 00 0 0 0 2 50 Stan 0 5 7 2 50 12 00 1 0 10 0 0 0 0 2 50 PIN 13 14 Char 3 40 0 30 Stan 0 0 U102 TL431IDBVR CHARGER PIN 1 2 3 4 5 Charging 2 5 0 0 0 2 50 Standby 2 5 0 0 0 2 50...

Page 64: ...90 4 90 0 5 00 0 6 64 PIN B E C B E C B E C B E C SPK ON 6 58 7 20 7 20 4 99 4 28 6 65 4 96 4 28 7 20 0 7 0 0 PIN B E C B E C B E C B E C Tx V 6 61 7 20 4 91 4 00 4 90 4 54 4 95 4 18 4 72 Rx V 6 61 7 20 4 91 0 68 0 0 4 95 4 18 4 72 Q19 MMBT3904LT1 Q25 MPS8550 Q16 MPS8550S Q21 MMBT3904LT1 Q22 MMBT3904LT1 Q18 MPS8550S Q20 2SC4097R Q24 MPS8550 Q13 2SK302 Q14 2SK210Y Q15 MMBT3906LT1 Q17 MMBT3904LT1 Q1...

Page 65: ... 00 2 50 12 00 10 00 8 20 9 00 10 00 12 00 0 0 10 00 Standby 0 12 00 0 12 00 7 40 12 00 3 90 7 40 12 00 0 70 0 0 PIN B E C B E C B E C Charging 0 0 0 70 0 70 0 0 0 0 0 8 Standby 0 70 0 0 0 0 10 00 0 7 0 0 00 Q28 MMBT3904 Q29 MMBT3904 Q30 MMBT3904 Q23 2SC4097R Q27 2SC4097R Q26 MMBT3906LT1 VOLTAGE CHART CONTINUED Q105 MMBT3904LT1 Q106 MMBT3904LT1 Q103 MMBT3904LT1 Q101 MMBT3904LT1 Q107 2SB772 Q102 MM...

Page 66: ... 10K R146 18K R83 47K R111 470K R115 10K C224 47P R167 33K C122 1u R73 0 C123 100n RX 5V 3 2 1 8 4 U2A LM2904 5 6 7 U2B LM2904 R103 0 39 R104 0 39 R96 100K 1 R108 10K R130 47K R98 200K 1 R99 200K 1 R100 100K 1 R136 1M R137 10K R128 47K Q11 BT3904 C76 2 2uF C38 1n PCS PLD PCK PDA Q26 BT3906 Q9 BT3906 R195 4K7 R194 4K7 R197 2K2 R196 2K2 R198 330 1 8V 2 7V 3 4V 4 45V 0 10V 0 9V 1 8V 2 7V 3 4V 4 45V R...

Page 67: ...1K Q104 3904 VCC U102 TL431A Q101 3904 Q102 3904 Q103 3904 VCC VCC 2 5V R126 1 R125 1 R128 1 R127 1 R114 1 5K R113 1K R129 1 C109 4700p C107 4700p R108 51K R109 12K R105 3 3K 2 5V R107 910 C105 100P Red Green J1 DC_JACK VCC R106 100K D102 1N4001 47K R124 22KF R123 2M 7 4V 1000MAH Input 12VDC C111 100P R120 910 R119 4 7K 2 5V 3 2 1 R121 100K R122 100K R118 3 3K Q106 3904 R130 4 7K 3 2 1 4 11 U101A ...

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