Cobra MR HH330 FLT Service Manual
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Cobra MR HH330 FLT Service Manual

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MARINE HANDHELD TRANSCEIVER
Catalog Number: MR HH330 FLT /EU
CONTENTS
Page
Specifications........................................................................................................................................................2
Theory of Operation...............................................................................................................................................4
Block Diagram.......................................................................................................................................................6
Disassembly Instructions................................................................... ..................................................................7
Alignment Procedures...........................................................................................................................................8
Adjustment Procedure...........................................................................................................................................9
Wiring Diagram....................................................................................................................................................10
Printed Circuit Board............................................................................................................................................11
Troubleshooting..................................................................................................................................................15
Exploded View.....................................................................................................................................................15
Exploded View Part List......................................................................................................................................17
Electrical &Packing &Other Parts List..................................................................................................................19
IC Lead Identification and Internal Diagram.........................................................................................................49
Transistor Lead Identification...............................................................................................................................58
Voltage Chart.......................................................................................................................................................59
Schematic Diagram.............................................................................................................................................63
Version:01 Date: Apr 02, 2010

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Summary of Contents for Cobra MR HH330 FLT

  • Page 1: Table Of Contents

    MARINE HANDHELD TRANSCEIVER Catalog Number: MR HH330 FLT /EU CONTENTS Page Specifications................................2 Theory of Operation...............................4 Block Diagram...............................6 Disassembly Instructions.............................7 Alignment Procedures............................8 Adjustment Procedure............................9 Wiring Diagram..............................10 Printed Circuit Board............................11 Troubleshooting..............................15 Exploded View..............................15 Exploded View Part List............................17 Electrical &Packing &Other Parts List........................19 IC Lead Identification and Internal Diagram......................49...

  • Page 2: Specifications

    SPECIFICATIONS DESCRIPTION Unit LIMIT Frequency Range: Transmit MHz 156.025 To 157.425. Frequency Range: Receive 156.050 To 162.025 (Eu) 156.050 To 163.275 (Us) Number Of Channels 59 INT, 57 USA, 57 Canada 10 Weather Channels (only for Us) 100 Memory Channels Oscillate Mode Modulation FM(16K0G3E)
  • Page 3 Weather RECEIVER (only for US) Unit LIMIT Sensitivity For 12dB Sinad dBm ≤ -100 Sensitivity For WX Alarm (1050Hz Dev.3KHz) dBm ≤ -100 TRANSMITTER Unit LIMIT Carrier power(no mod) 6±0.8 3±0.5 0.8±0.2 Carrier freq. Tolerance ppm ± 10 Modulation limiting ±kHz 4.3~ 4.9 Audio frequency response -12 ±...

  • Page 4: Theory Of Operation

    THEORY OF OPERATION This PLL - controlled VHF marine transceiver provides an accurate and stable multi-channel operation. The transceiver consists of 6 main sections: Transmitter Receiver Low voltage detection Local oscillator PLL (Phase Lock Loop) Circuit Memory backup ATIS(Automatic Transmitter Identification System) Transmitter The audio is picked up from the internal MIC, the audio signal is then amplified by Audio Amplifier, U4 LM324 (2/4), U4 (3/4) and filtered by a low pass filter U4 (4/4).
  • Page 5 and RF amplifier. The 21.4 MHz IF then is mixed here with second mixer and converted into 2nd Immediate Frequency (IF) 450 kHz. The 2nd IF passes through a ceramic filter F5 to filter out the residue unwanted signal at pin 5 of U1 (BA4116) output this final IF signal and the Audio signal is output at pin 9 of U1 (BA4116).

  • Page 6: Block Diagram

    BLOCK DIAGRAM (for HH330)

  • Page 7: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS 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.

  • Page 8: Alignment Procedures

    ALIGNMENT AND ADJUSTMENT This transceiver is completely aligned at the factory and does not require any adjustments for installation. However it is considered as good practice to verify that none of the adjustments have changed. The test equipment listed below are used for the test setup shown in Fig. 3.1. This test setup used either partially or totally during the following adjustments.

  • Page 9: Adjustment Procedure

    ADJUSTMENT PROCEDURE Step Adjustment Test Point Procedure Connect digital voltmeter to TP1 on RF PCB. Set CH01 . L18 Receive Adjust L18. TP1 voltage 1.2~1.6V DC. Connect a digital voltmeter to TP1 on RF PCB. Set CH01 . L20 Transmit Adjust L20.

  • Page 10: Wiring Diagram

    WIRING DIAGRAM...

  • Page 11: Printed Circuit Board

    PRINTED CIRCUIT BOARD Main PCB Top View...
  • Page 12 PRINTED CIRCUIT BOARD Main PCB Bottom View...
  • Page 13 PRINTED CIRCUIT BOARD Cradle Charger PCB View Top View Bottom View...

  • Page 14: Troubleshooting

    TROUBLESHOOTING Item Symptom Possible Cause Defective power switch VR3. Unit does not turn on. Check the battery voltage. Defective regulator U8. Speaker no sound with Defective volume control. AF signal applied to Defective speaker. Defective U11 and/or associated components. volume control Check squelch control.

  • Page 15: Exploded View

    EXPLODED VIEW (for HH330 Main Part)
  • Page 16 EXPLODED VIEW (for Battery and Antenna)

  • Page 17: Exploded View Part List

    INSU-SHET PVC W L36 W36 D-- ASTIGMATISM 270102604-00001-10 D-LENS PMMA MU TM832FEUL Transparent L40 270101425-11002-10 SCREW-TS WRH L5 D2 + CZ F RWB (four) 260100191-00000-10 TM832FEUL /PCBA MAIN/PCBA /R0 COBRA/EU/G 330202596-00000-10 M-COVR MU AL L67 W33.2 H6 260300141-11001-10 O-RING MU BK RUB H1.4OD--L118.5W62 3U2X 270200053-12001-10 M-WASH MU CU NI L10.55 W1.09 H0.2(two)
  • Page 18 EXPLODED VIEW LIST - CONTINUED Battery Part Ref. No. Description Mfr's Part No. P-BATT-DR BU ABS G TM832FEUL GRAY 432U 270101071-12002-10 FOAM-HDR SPNG L40W8T1 Black (two) 320100666-00001-10 BAT-R PRISM LI 7.4V 1000MAH TP603450 TEC 230400180-00000-10 O-RING BD BK RUB H5.4OD--L94.05W59 270200380-13001-10 P-RCAB BT ABS G TM832FEUL GRAY 432U 270100953-11002-10...

  • Page 19: Electrical &Packing &Other Parts List

    280700031-00000-10 TM832EUL /COBA LCD BONDING PCBA /R0 COBR 330301732-00000-10 U401 A-IC ANA HT1621(DICE-SD1706) CHIP 48 BON 210100060-00000-10 TM832EUL /SMTA LCD PCBA /R0 COBRA-EUR 330401965-00000-10 PCB DS FR4 GP LCD3 L32W20T1 250100356-00003-10 C401 CAP-CCER 100 nF K 16 VDC 0402 X7R...
  • Page 20 PARTS LIST (HH330 EU)- CONTINUED Main PCB Assembly Location Codes Description Mfr's Part No. CAP-CCER 56 pF J 50 VDC 0402 COG 280200859-00000-10 C100 CAP-CCER 470 pF J 50 VDC 0402 COG 280200840-00000-10 C101 CAP-CCER 470 pF J 50 VDC 0402 COG 280200840-00000-10 C102 CAP-CCER 470 pF J 50 VDC 0402 COG...
  • Page 21 PARTS LIST (HH330 EU)- CONTINUED Main PCB Assembly Location Codes Description Mfr's Part No. TRS-BP NPN SOT23 MMBT3904LT1 280400121-00000-10 TRS-BP NPN SOT23 MMBT3904LT1 280400121-00000-10 RES TFC 4.7 Kohm 0402 J 1/16W 280101287-00000-10 RES TFC 68 ohm 0402 J 1/16W 280101403-00000-10 RES TFC 4.7 Kohm 0402 J 1/16W 280101287-00000-10 RES TFC 10 Kohm 0402 J 1/16W...
  • Page 22 PARTS LIST (HH330 EU)- CONTINUED Main PCB Assembly Location Codes Description Mfr's Part No. R202 RES TFC 47 Kohm 0402 J 1/16W 280101294-00000-10 R203 RES TFC 10 Kohm 0402 J 1/16W 280100937-00000-10 R207 RES TFC 10 Kohm 0402 J 1/16W 280100937-00000-10 R208 RES TFC 150 ohm 0402 J 1/16W...
  • Page 23 PARTS LIST (HH330 EU)- CONTINUED Main PCB Assembly Location Codes Description Mfr's Part No. CAP-CCER 1000 pF K 50 VDC 0402 X7R 1570- 280200327-00000-10 CAP-CCER 100 nF K 16 VDC 0402 X7R 280200343-00000-10 CAP-CCER 1000 pF K 50 VDC 0402 X7R 1570- 280200327-00000-10 CAP-CCER 100 nF K 16 VDC 0402 X7R 280200343-00000-10...
  • Page 24 PARTS LIST (HH330 EU)- CONTINUED Main PCB Assembly Location Codes Description Mfr's Part No. 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...
  • Page 25 PARTS LIST (HH330 EU)- CONTINUED Main PCB Assembly Location Codes Description Mfr's Part No. 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 CAP-CCER 1000 pF K 50 VDC 0402 X7R 1570- 280200327-00000-10 C184 CAP-CCER 1000 pF K 50 VDC 0402 X7R 1570-...
  • Page 26 PARTS LIST (HH330 EU)- CONTINUED Main PCB Assembly Location Codes Description Mfr's Part No. DIO-SW DAN235E 1V 0.01 A SOT416 280600246-00000-10 DIO-VAR HVU307TRU 12.5 32V SOD-323 280600090-00000-10 DIO-VAR HVU307TRU 12.5 32V SOD-323 280600090-00000-10 DIO-VAR HVU307TRU 12.5 32V SOD-323 280600090-00000-10 DIO-SCK HSC278TRF-E 0.95V 0.15 A UFP 280600258-00000-10 DIO-VAR HVU307TRU 12.5 32V SOD-323 280600090-00000-10...
  • Page 27 PARTS LIST (HH330 EU)- CONTINUED Main PCB Assembly Location Codes Description Mfr's Part No. TRS-BP NPN SOT23 MMBT3904LT1 280400121-00000-10 TRS-BP NPN SOT23 MMBT3904LT1 280400121-00000-10 TRS-FET/MOS N SC62 2SK3078 280400258-00000-10 TRS-FET/MOS N 2SK302GR 280400250-00000-10 TRS-FET/MOS N SC59 2SK210-Y 280400249-00000-10 TRS-BP PNP SOT23 MMBT3906LT1 4823-30669- 280400122-00000-10 TRS-BP PNP SOT23 MPS8550S 280400133-00000-10...
  • Page 28 PARTS LIST (HH330 EU)- CONTINUED Main PCB Assembly Location Codes Description Mfr's Part No. RES TFC 100 Kohm 0402 J 1/16W 280100941-00000-10 RES TFC 100 ohm 0402 J 1/16W 280100919-00000-10 RES TFC 82 ohm 0402 F 1/16W 280101441-00000-10 RES TFC 330 ohm 0402 J 1/16W 280101196-00000-10 RES TFC 3.3 Kohm 0402 J 1/16W 280101201-00000-10...
  • Page 29 PARTS LIST (HH330 EU)- CONTINUED Main PCB Assembly Location Codes Description Mfr's Part No. R110 RES TFC 47 Kohm 0402 J 1/16W 280101294-00000-10 R111 RES TFC 470 Kohm 0402 J 1/16W 280101299-00000-10 R112 RES TFC 100 Kohm 0402 J 1/16W 280100941-00000-10 R113 RES TFC 22 Kohm 0402 F 1/16W...
  • Page 30 P-SLV-ANT BU PU BK TM832EUL ANT 3U2X 270102093-12001-10 P-CAP BU ABS BK TM833/832 ANT 3U2X 270102110-11001-10 Li - Polymar Battery Part TM832FEUL /E&M LI BATTERY /R0 COBRA/EU/G 330502824-00000-10 BAT-R PRISM LI 7.4V 1000MAH TP603450 TEC 230400180-00000-10 MAG-CORE Ferrite D8.0 H4.0 IR4H0804-4.5T 280301131-00000-10 TUBE ROLL OD1.4 ID1 BK...
  • Page 31 320100727-00000-10 FOAM-HDR RUBB D1.8T1 NA Black SCREW CAP(five) 320100751-00001-10 Cradle Charger Part TM833FBEUL /U- CHG/UNIT /R0 COBRA/EU 330100063-00000-10 TM832FEUL /E&M CRADLE CHG COMP /R0 COBRA 330503710-00000-10 SCREW-TS PH L8 D3 + F PB 260100126-00000-10 CON-CHAR PB T0.3H6.8WD-- GD(three) 260300378-11001-10 P-FCAB CH ABS BK TM833FBEUL CM110-020 3U...
  • Page 32 PARTS LIST (HH330 EU)- CONTINUED Cradle Charger Part Location Codes Description Mfr's Part No. TM833FBEUL /SMTA CHG/TOP/PCBA /R0 COBRA/ 330400027-00000-10 PCB DS FR4 GP CHG 1-1 L54.5W38T1.0 250100101-00001-10 C102 CAP-CCER 0.1 uF K 25 VDC 0603 X7R 1570-0 280200604-00000-10 C104 CAP-CCER 0.1 uF K 25 VDC 0603 X7R 1570-0...
  • Page 33 PARTS LIST (HH330 EU)- CONTINUED Packing Material Part Location Codes Description Mfr's Part No. LB-B TM832FEUL EAN128 COBRA V1(two) 300205429-00001-10 LB-G CTN TM308USL CAUT L120W110 COBRA RE 300205769-00001-10 P-BAG PELD W127L406.4T0.05 300301803-00002-10 P-BAG PELD W600L750T0.08 300301990-00001-10 IS-CTN L320W310 B=B TM833FBEUL 300609360-00001-10 ML-IB TM832FEUL COBRA L179W127 REV 2.0...
  • Page 34 XTL 7.3728 M 30 12.5pF D3.0 H8.0 -10+60 280700031-00000-10 TM832EUL /COBA LCD BONDING PCBA /R0 COBR 330301732-00000-10 A-IC ANA HT1621(DICE-SD1706) CHIP 48 BON 210100060-00000-10 TM832EUL /SMTA LCD PCBA /R0 COBRA-EUR 330401965-00000-10 PCB DS FR4 GP LCD3 L32W20T1 250100356-00003-10 CAP-CCER 100 nF K 16 VDC 0402 X7R 280200343-00000-10...
  • Page 35 PARTS LIST (HH330 US) - CONTINUED Main PCB Assembly Location Codes Description Mfr's Part No. CAP-CCER 100 nF K 16 VDC 0402 X7R 280200343-00000-10 CAP-CCER 56 pF J 50 VDC 0402 COG 280200859-00000-10 C100 CAP-CCER 470 pF J 50 VDC 0402 COG 280200840-00000-10 C101 CAP-CCER 470 pF J 50 VDC 0402 COG...
  • Page 36 PARTS LIST (HH330 US) - CONTINUED Main PCB Assembly Location Codes Description Mfr's Part No. TRS-BP PNP SOT23 MMBT3906LT1 4823-30669- 280400122-00000-10 TRS-BP NPN SOT23 MMBT3904LT1 280400121-00000-10 TRS-BP NPN SOT23 MMBT3904LT1 280400121-00000-10 RES TFC 4.7 Kohm 0402 J 1/16W 280101287-00000-10 RES TFC 68 ohm 0402 J 1/16W 280101403-00000-10 RES TFC 4.7 Kohm 0402 J 1/16W 280101287-00000-10...
  • Page 37 PARTS LIST (HH330 US) - CONTINUED Main PCB Assembly Location Codes Description Mfr's Part No. R202 RES TFC 47 Kohm 0402 J 1/16W 280101294-00000-10 R203 RES TFC 10 Kohm 0402 J 1/16W 280100937-00000-10 R207 RES TFC 10 Kohm 0402 J 1/16W 280100937-00000-10 R208 RES TFC 150 ohm 0402 J 1/16W...
  • Page 38 PARTS LIST (HH330 US) - CONTINUED Main PCB Assembly Location Codes Description Mfr's Part No. CAP-CCER 1000 pF K 50 VDC 0402 X7R 1570- 280200327-00000-10 CAP-CCER 1000 pF K 50 VDC 0402 X7R 1570- 280200327-00000-10 CAP-CCER 100 nF K 16 VDC 0402 X7R 280200343-00000-10 CAP-CCER 1000 pF K 50 VDC 0402 X7R 1570- 280200327-00000-10...
  • Page 39 PARTS LIST (HH330 US) - CONTINUED Main PCB Assembly Location Codes Description Mfr's Part No. CAP-CCER 470 pF J 50 VDC 0402 COG 280200840-00000-10 CAP-CCER 10 nF K 25 VDC 0402 X7R 280200336-00000-10 CAP-CCER 470 pF J 50 VDC 0402 COG 280200840-00000-10 C103 CAP-CCER 470 pF J 50 VDC 0402 COG...
  • Page 40 PARTS LIST (HH330 US) - CONTINUED Main PCB Assembly Location Codes Description Mfr's Part No. 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...
  • Page 41 PARTS LIST (HH330 US) - CONTINUED Main PCB Assembly Location Codes Description Mfr's Part No. 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 DIO-SW ISS356 1V 0.1 A USM 280600248-00000-10 DIO-SW ISS356 1V 0.1 A USM 280600248-00000-10...
  • Page 42 PARTS LIST (HH330 US) - CONTINUED Main PCB Assembly Location Codes Description Mfr's Part No. TRS-BP NPN SOT23 2SC4901 280400127-00000-10 TRS-BP NPN SOT23 2SC4901 280400127-00000-10 TRS-FET/MOS N L6.0W4.9H0.9 RD07MUS2B-T11 280400512-00000-10 TRS-BP NPN SOT23 2SC4901 280400127-00000-10 TRS-FET/MOS N CMPAK-4 3SK318YB 280400262-00000-10 TRS-BP NPN SOT23 MMBT3904LT1 280400121-00000-10 TRS-BP NPN SOT23 MMBT3904LT1...
  • Page 43 PARTS LIST (HH330 US) - CONTINUED Main PCB Assembly Location Codes Description Mfr's Part No. RES TFC 100 Kohm 0402 J 1/16W 280100941-00000-10 RES TFC 100 Kohm 0402 J 1/16W 280100941-00000-10 RES TFC 100 Kohm 0402 J 1/16W 280100941-00000-10 RES TFC 100 Kohm 0402 J 1/16W 280100941-00000-10 RES TFC 100 Kohm 0402 J 1/16W 280100941-00000-10...
  • Page 44 PARTS LIST (HH330 US) - CONTINUED Main PCB Assembly Location Codes Description Mfr's Part No. R103 RES TFC 0.39 ohm 1206 J 1/8W 280101263-00000-10 R104 RES TFC 0.39 ohm 1206 J 1/8W 280101263-00000-10 R105 RES TFC 10 Kohm 0402 J 1/16W 280100937-00000-10 R106 RES TFC 33 Kohm 0402 J 1/16W...
  • Page 45 P-SLV-ANT BU PU BK TM832EUL ANT 3U2X 270102093-12001-10 P-CAP BU ABS BK TM833/832 ANT 3U2X 270102110-11001-10 Li - Polymar Battery Part TM832FEUL /E&M LI BATTERY /R0 COBRA/EU/G 330502824-00000-10 BAT-R PRISM LI 7.4V 1000MAH TP603450 TEC 230400180-00000-10 MAG-CORE Ferrite D8.0 H4.0 IR4H0804-4.5T 280301131-00000-10 TUBE ROLL OD1.4 ID1 BK...
  • Page 46 290100070-00000-10 FOAM-SPK NYL D37.3T-- SS BLACK TM833FBEU 320101847-00001-10 Cradle Charger Assembly TM833FBEUL /U- CHG/UNIT /R0 COBRA/EU 330100063-00000-10 TM832FEUL /E&M CRADLE CHG COMP /R0 COBRA 330503710-00000-10 SCREW-TS PH L8 D3 + F PB 260100126-00000-10 CON-CHAR PB T0.3H6.8WD-- GD (three) 260300378-11001-10 P-FCAB CH ABS BK TM833FBEUL CM110-020 3U...
  • Page 47 PARTS LIST (HH330 US) - CONTINUED Cradle Charger Assembly Location Codes Description Mfr's Part No. TM833FBEUL /PCBA CHG/PCBA /R0 COBRA/EU 330200036-00000-10 C101 CAP-RELE 47 uF M 25V D5 H11 280202379-00000-10 C103 CAP-RELE 47 uF M 25V D5 H11 280202379-00000-10 D102 DIO-REC IN4001 1.1V 1 A DO-41...
  • Page 48 Packing Material Part TM832FUSL /PKG -BOX /R0 COBRA/US 330700044-00000-10 ML-IN TM832FUSL COBRA L162W26 300102317-00001-10 LB-B TM832FUSL EAN128 COBRA V1(two) 300205428-00001-10 LB-G CTN TM308USL CAUT L120W110 COBRA RE 300205769-00001-10 P-BAG PELD W127L406.4T0.05 300301803-00002-10 IS-CTN L320W155 B=B TM833FUSL 300609359-00001-10 ML-IB TM832FUSL COBRA L179W127...

  • Page 49: Ic Lead Identification And Internal Diagram

    IC LEAD IDENTIFICATION AND INTERNAL DIAGRAM 4116 PIN FUNCTION 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.
  • Page 50 2904 PIN FUNCTION 1.A OUTPUT 2.A - INPUT 3.A +INPUT 4.GND 5.B +INPUT 6.B - INPUT 7.B OUTPUT U3-XC61CN2702MR Block Diagram CMOS Output...
  • Page 51 U4, U5-...

  • Page 52: Pin Description

    U GP214D Block Diagram PIN Description Pin No. Symbol Function Description I / O Fin1 RF input, channel 1. Power supply. 2, 15 Two pins are connected each other. Charge pum p output, cha nnel 1. Charg e pu mp current is selecte d b y th e inp ut serial data.
  • Page 53 U7-PIC24FJ64GA006 SOSCO/T1CK/CN0/RC14 PMD5/RE5 SOSCI/CN1/RC13 PMD6/RE6 OC1/RD0 PMD7/RE7 IC4/PMCS1/INT4/RD11 PMA5/SCK2/CN8/RG6 IC3/PMCS2/INT3/RD10 PMA4/SDI2/CN9/RG7 IC2/U1CTS/INT2/RD9 PMA3/SDO2/CN10/RG8 IC1/RTCC/INT1/RD8 MCLR PIC24FJXXGA006 PMA2/SS2/CN11/RG9 PIC24FJXXXGA006 OSC2/CLKO/RC15 OSC1/CLKI/RC12 C1IN+/AN5/CN7/RB5 C1IN-/AN4/CN6/RB4 SCL1/RG2 SDA1/RG3 C2IN+/AN3/CN5/RB3 U1RTS/BCLK1/SCK1/INT0/RF6 C2IN-/AN2/SS1/CN4/RB2 PGC1/EMUC1/V -/AN1/CN3/RB1 U1RX/SDI1/RF2 PGD1/EMUD1/PMA6/V +/AN0/CN2/RB0 U1TX/SDO1/RF3...
  • Page 54 U8-XC6204B502MR 041 - D SU RESET FLASH MEMORY ARRAY PAGE (256/264 BYTES BUFFER 1 (256/264 BYTES BUFFER 2 (256/264 BYTES I O INTERFACE RESET...
  • Page 55 U10, U12-XC6204B332MR U11-NJM2070 BIAS +INPUT +INPUT -INPUT OUTPUT -INPUT OUTPUT 100K...
  • Page 56 U101- NJM3403AM A OUTPUT D OUTPUT A -INPUT D -INPUT A +INPUT D +INPUT C +INPUT B +INPUT B -INPUT C -INPUT C OUTPUT B OUTPUT OUTPUT -INPUT +INPUT DBVR...
  • Page 57 U401-HT1621-DICE...

  • Page 58: Transistor Lead Identification

    TRANSISTOR LEAD IDENTIFICATION MMBT3906 MMBT3904 1.Gate 1 1. Base 2.Gate 2 3.Drain 2. Emitter 4.Source 3. Collector 4901 8550 2SC4097R 2SC3356 1.Gate 1.Base 2.Drain 2.Emitter 3.Source 3.Collector 2SK210Y Drain Terminal No. Gate 1.Drain (output) Source 2.Source (GND) 3.Gate (input) KTC9014 Emitter Emitter Base...

  • Page 59: Voltage Chart

    VOLTAGE CHART U1 BA4116FV Rx(V) 4.78 4.20 3.45 4.81 4.38 4.39 0.64 0.60 RFIN Rx(V) 0.94 U2 NJM2904M Tx(V) 0.48 0.48 4.70 4.80 0.40 7.20 U3 XC61CN2702MR Tx(V) 5.00 5.00 5.00 5.00 Rx(V) U4 NJM324V 4.80 1.86 1.86 1.86 1.86 1.86 1.86 1.78...
  • Page 60 VOLTAGE CHART-CONTINUED U8 XC6204B502MR VOUT Rx(V) 7.20 7.20 4.99 U9 AT45DB041D Tx(V) 4.98 4.99 U10 XC6204B332MR 3.30 U11 NJM2070M 0.60 3.26 7.16 Rx(V) U12 XC6204B332MR 3.30 3.30 3.30 3.30 U101 NJM3403AM Char 4.00 2.50 12.00 0.50 4.00 0.00 4.00 2.50 Stan 2.50 12.00...
  • Page 61 VOLTAGE CHART-CONTINUED Q1 2SC4901YK Q2 2SC4901YK Q3 2SC3356 Q4 2SC4901YK Tx(V) 0.70 0.80 0.25 4.54 0.74 3.76 Rx(V) 0.71 Q5 2SC4901YK Q6 RD07MVS1 Q7 2SC4901YK Q9 MMBT3906LT1 2.30 6.80 4.00 4.10 0.00 Tx(V) Rx(V) 0.70 3.90 0.78 2.32 3.40 4.10 4.02 Q8 3SK318 Tx(V)
  • Page 62 VOLTAGE CHART-CONTINUED Q23 2SC4097R Q27 2SC4097R Moto(on) 4.50 3.20 6.80 Mate 0.65 Q26 MMBT3906LT1 Q28 MMBT3904 Q29 MMBT3904 Q30 MMBT3904 Tx(V) 3.48 4.10 4.10 2.20 3.30 5.00 Rx(V) 4.00 4.00 2.20 3.40 5.00 CHARGER Q101 MMBT3904LT1 Q107 2SB772 Q102 MMBT3904LT1 Q104 MMBT3904LT1 Charging 1.70 12.00...

  • Page 63: Schematic Diagram

    SCHEMATIC DIAGRAM (for Main Radio) RSSI C203 100P RX 5V HDF160F HDF160F C138 C183 2.2uH 3SK318 56nH 100nH 100nH 100nH C148 2SC4901 21.4MHz CDB450C24 21.4MHz R174 R214 2SC4901 C137 100K R159 C115 C146 100nH 100nH 2SK318 820P 100nH 100nH C218 R218 1SS356 B,W,Y...
  • Page 64 SCHEMATIC DIAGRAM (for Cradle Charger) R120 C111 R101 +2.5V 100P 4.7K D102 R121 1N4001 100K C102 C103 C104 R119 C101 47uF/25V U102 DC_JACK 4.7K 47uF/25V TL431A Input:12VDC Q106 +2.5V 3904 U101A NJM3403 R122 100K Q107 R115 C105 C106 D103 2SB772 R107 100P 100P...

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