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Service Manual

1. 1 ICs PIN RX PIN TX RX PIN TX RX 1 3 70 1 3 20 3 00 1 1 38 1 57 2 3 10 2 3 90 3 80 2 1 38 1 57 3 3 50 3 3 90 3 80 3 1 38 1 57 4 3 80 4 0 00 0 00 4 3 8 0 00 5 3 30 201 5 2 00 3 80 5 5 1 30 3 40 6 3 30 6 0 00 0 00 6 1 38 2 30 5018 7 3 30 7831202 7 0 00 0 00 8324 7 1 38 2 30 8 3 80 8 0 00 0 00 8 1 38 2 30 9 1 30 9 2 80 2 70 9 1 38 1 52 10 0 88 10 2 90 2 90 10 1 38 1 52 11 1 45 11 3 70 3 70 11 0 00 0 00 12 0 52 12 4 00 0 39 12 1 38 1 52 13 3 60 13 0 00 0 00 13 1 38 1 52 14 0 00 14 0 30 0 00 14 1 38 1 52 15 0 00 15 3 80 3 80 16 1 68 16 3 30 3 20 TX RX IC 2 RX PIN 1 1 39 32 1 1 30 1 4 00 2 1 39 32 2 0 00 2 0 00 3 1 39 32 3 0 00 3 6 00 4 3 80 0 00 4 0 00 4 6 00 IC4 5 1 40 30 162 5 2 70 IC3 5 0 00 6 1 40 30 6 6 00 6 0 00 5324 7 1 40 30 7 3 00 8 2 80 30 34119 8 1 30 9 1 40 30 PIN 10 1 40 30 1 4 00 11 0 00 0 00 2 0 00 12 1 00 00 3 4 00 13 0 60 0 60 14 2 80 2 80 Created by Approved by Rev No For Stage Release Date Page 38 of 49 2 oa w A ol gt
2. 52 0 1 Capacitor Chip Y5V 0402 1 C53 0 1 X7R Capacitor Chip X7R 0603 1 C54 470 7 0402 1 55 0 1 Capacitor Chip Y5V 0402 1 C56 100P Capacitor Chip 0402 1 C57 0 1 Capacitor Chip Y5V 0402 1 C58 100P Capacitor Chip 0402 1 C59 100P Capacitor Chip 0402 1 C6 6P 03 Capacitor Ceramic 0603 NPO 1 C60 0 1 Capacitor Chip Y5V 0402 1 C61 100P Capacitor Chip NPO 0402 1 C62 100P Capacitor Chip NPO 0402 1 C63 100P Capacitor Chip NPO 0402 1 C64 7P Capacitor Chip NPO 0402 1 C65 0 033 Capacitor Chip X7R 0402 1 C66 100P Capacitor Chip NPO 0402 1 C67 0 01 Capacitor Chip X7R 0402 1 C68 100P Capacitor Chip NPO 0402 1 C69 10UF 3X5 Capacitor Elect 3X5 1 C7 100P Capacitor Chip NPO 0402 1 C70 220 6 3 6 3 7 Capacitor Elect 1 C71 0 1 Capacitor Chip Y5V 0402 1 C72 0 1 Capacitor Chip Y5V 0402 1 C73 100P Capacitor Chip 0402 1 C74 100P Capacitor Chip NPO 0402 1 C75 0 1 Capacitor Chip Y5V 0402 1 C76 100P Capacitor Chip NPO 0402 1 C77 0 01 Capacitor Chip X7R 0402 1 C78 0 1 Capacitor Chip Y5V 0402 1 C79 100P Capacitor Chip 0402 1 C8 100P Capacitor Chip 0402 1 C80 100P Capacitor Chip 0402 1 C81 100P Capacitor Chip 0402 1 C82 0 001 Capacitor Chip X7R 0402 1 C83 100P Capacitor Chip 0402 1 C84 1UF Capacitor Chip Y5V 0603 1 C85 100P
3. 1 7 z X 2 H SEXE cd gu 8 kreos 1 A Xi 7 lt 8 8 TT 2 3 n 2 087 600220525 18 e OI d ue 08 lix 120k Ss 1 E 22 2 22 15 2 mi EIN 24225 2 EE Hide exc n 576 5 0 E E 8 P M PAGE 5 OF 49 40400 5 DIAGRAM cuc B 3 4 1 td
4. 112 5 6UH 05 Inductor Chip 0805 1 113 220 03 Inductor Chip 0603 1 L14 18NH Inductor Chip 0402 1 115 0 3X1 4X6T R Inductor Air 1 L16 100NH Inductor Chip 0402 1 118 0 3X1 0X3T R Inductor Air 1 L2 10UH 05 Inductor Chip 0805 1 L3 0 3X1 4X6T R Inductor Air 1 L302 2 2UH 03 Inductor Chip 0603 1 L303 0 3X1 1X4T R Inductor Air 1 L4 47NH Inductor Chip 0402 1 L5 33NH Inductor Chip 0402 1 L6 0 4X1 1X2T R Inductor Air 1 L7 0 35X1 8X5T R Inductor Air 1 L8 0 4X1 5X5T L Inductor Air 1 19 27NH 03 Inductor Chip 0603 1 LCD1 LCD GX XXXXX 1 LED1 LTST S320GKT Diode LED SMT 1 LED2 DUAL LED KPBA 3010ESGC 1 PCB1 PCB 4 Layer for MT4040D 1 Q1 NE5510279A Transistor Chip 1 Q10 KRA306E Transistor BRT 1 Q11 BFQ67W Transistor Chip 1 Q12 KRC404E Transistor BRT 1 Q13 KTA1505S Transistor BRT 1 014 KRA306E Transistor BRT 1 Q16 KRA226S Transistor BRT 1 Q17 KRC405E Transistor BRT 1 Q18 KRA226S Transistor BRT 1 Q19 KRC401E Transistor BRT 1 02 BFQ67W Transistor Chip 1 021 KTC4075E Transistor Chip 1 Q22 KTC4075E Transistor Chip 1 Q23 KRC405E Transistor BRT 1 Q24 KRC404E Transistor BRT 1 Q25 KRC405E Transistor BRT 1 Q26 KRA304E Transistor BRT 1 Q27 KRC404E Transistor BRT 1 Q3 KRC405E Transistor BRT 1 Q301 25 4226 Transistor Chip 1 Q302 25 4226 Transistor Chip 1 Created by Approved by Rev No For Stage Release Date
5. mm 6 49 CHANNEL FREQUENCY CHARTS PMR Frequency Chart Channel Frequency MHz Channel Frequency MHz 1 446 00625Mhz 2 446 01875Mhz 3 446 03125Mhz 4 446 04375Mhz 5 446 05625Mhz 6 446 06875Mhz 7 446 08125Mhz 8 446 09375Mhz CTCSS Tone Frequency Chart Created by Approved by Rev No For Stage Release Date Page 7 of 49 LPD Frequency Chart Channel Frequency MHz Channel Frequency MHz 01 433 07500 36 433 95000 02 433 10000 37 433 97500 03 433 12500 38 434 00000 04 433 15000 39 434 02500 05 433 17500 40 434 05000 06 433 20000 41 434 07500 07 433 22500 42 434 10000 08 433 25000 43 434 12500 09 433 27500 44 434 15000 10 433 30000 45 434 17500 11 433 32500 46 434 20000 12 433 35000 47 434 22500 13 433 37500 48 434 25000 14 433 40000 49 434 27500 15 433 42500 50 434 30000
6. 40400 VIEW Created by Approved by Rev No For Stage Release Date Page 48 of 49 Title 2020 40400 SERVICE MANUAL Rev Date January 5 2005 MT 4040D EXPLODED VIEW PARTS LIST MT2020D 020 POP LABEL NO ITEM NO DESCRIPTION QTY REMARK 2 MI20200 005 720200 018 LCD WINDOW DOUBLE SIDE TAPE for WINDOW 120200 001 FRONT COVER 4120200 006 LED LENS KEY PAD 120200 013 LCD BRACKET MT20200 012 3 4 5 6 120200 009 7 8 9 120200 007 ZEBRA BACK LIGHT LENS 10 65 076 12 6223 018 DOUBLE SIDE TAPE for REFLECTIVE 11 MI2020D 017 REFLECTIVE SHEET METAL DOME 13 20200 010 BUTTON 14 140400 008 ANTENNA HOUSING 15 16223 012 01 TERMINAL A 01 7 2 16 120200 002 BACK COVER 17 SCREW A PH 2 6X8 Block 20 120200 019 PRODUCTION LABEL 18 20200 017 EAR CAP 19 MI2020D 004 BELT CLIP 21 MI20200 015 TERMINAL D 22 6223 014 01 23 20200 014 TERMINAL C 01 TERMINAL SHIELD PLATE for VCO 25 65 013 26 120200 003 BATTERY COVER 27 20200 016 CHARGE TERMINAL Na 20200 021 FELT for SPEAKER R F SHIELD PLATE acs
7. HP 8920A B POWER SUPPLY P E NO ia 2 22 de ni E RF IN OUT LA m 44 2 8 Se tot ny gt us Jes m Created Rev For Stage Release Date Page 16 of 49 FIGURE 3 RX TEST HP 8920A B POWER SUPPLY RF IN OUT 27 E BATT Created by Approved by Rev No For Stage Release Date Page 17 of 49 2020 PARTS LIST C1 100P Capacitor Chip 0402 1 C10 100P Capacitor Chip 0402 1 C100 0 1 X7R Capacitor Chip X7R 0603 1 C101 0 1 Capacitor Chip Y5V 0402 1 C102 0 1 Capacitor Chip Y5V 0402 1 C103 100P Capacitor Chip NPO 0402 1 C104 100P Capacitor Chip NPO 0402 1 C105 100P Capacitor Chip NPO 0402 1 C106 10UF 3X5 Capacitor Elect 3X5 1 C107 0 1 Capacitor Chip Y5V 0402 1 C108 820P X7R Capacitor Chip X7R 0402 1 C109 0 0022 Capacitor Chip X7R 0402 1 C11 0 0082 Capacitor Chip X7R 0402 1 C110 0 022 Capacitor Chip X7R 0402 1 111 0 0022 Capacitor Chip X7R 0402 1 C112 0 022 Capacitor Chip X7R 0402 1 C113 0 1 Capacitor Chip Y5V 0402 1 C115 3P Capacitor Chip 0402 1 C116 100P 03 Capacitor Ceramic 0603 NPO 1 C117 0 1 Capacitor Chip Y5V 04
8. For Stage Release Date Page 34 of 49 R15 2 2K Resistor Chip 0402 1 R16 10K Resistor Chip 0402 1 R17 220K Resistor Chip 0402 1 R18 470K Resistor Chip 0402 1 R19 100K Resistor Chip 0402 1 R2 2 7K Resistor Chip 0402 1 R20 680K Resistor Chip 0402 1 R202 1K Resistor Chip 0402 1 R203 5 6K Resistor Chip 0402 1 R204 10K Resistor Chip 0402 1 R206 0 Resistor Chip 0402 1 R207 100K Resistor Chip 0402 1 R21 1M Resistor Chip 0402 1 R214 1M Resistor Chip 0402 1 R216 1M Resistor Chip 0402 1 R22 100K Resistor Chip 0402 1 R222 100K Resistor Chip 0402 1 R224 100 Resistor Chip 0402 1 R226 22 Resistor Chip 0402 1 R23 2 2K Resistor Chip 0402 1 R24 100 03 Resistor Chip 0603 5 1 R25 3 3K Resistor Chip 0402 1 R26 33K Resistor Chip 0402 1 R27 33K Resistor Chip 0402 1 R28 6 8K Resistor Chip 0402 1 R29 2 2 Resistor Chip 0402 1 R3 2 2K Resistor Chip 0402 1 R30 91K Resistor Chip 0402 1 R301 10 Resistor Chip 0402 1 R302 1 5K Resistor Chip 0402 1 R303 3 3K Resistor Chip 0402 1 R304 4 7K Resistor Chip 0402 1 R306 180 Resistor Chip 0402 1 R307 33 Resistor Chip 0402 1 R309 10K Resistor Chip 0402 1 R31 270K Resistor Chip 0402 1 R311 10K Resistor Chip 0402 1 R32 4 7K Resistor Chip 0402 1 R33 82K 1 Resistor Chip 0402 1 1 R34 4 7K Resistor Chip 0402 1 R35 100K Resistor Chip 0402 1
9. 391 341 391 8 39395 8105180 221 Y 8 21 337 34 e 60 dl i vZD 412 0 62 ve2 L1 21 2051050 ZHWDOS 441 09A VNN31NY 4 S 5 Yl H 5 145 14 90 348 338 4 of 49 Approved by Release Date Created by For Stage MT 2020D SCHEMATIC L4 DIAGRAM
10. Reg LCD LCD PCB PCB MIC MIC SPK SPEAKER Created by Approved by Rev No For Stage Release Date Page 49 of 49
11. Page 33 of 49 04 KRC405E Transistor BRT 1 Q5 KRC404E Transistor BRT 1 Q6 25 4226 Transistor Chip 1 Q7 KTA2014E Transistor Chip 1 Q8 25 4226 Transistor Chip 1 Q9 25 4083 Transistor Chip 1 R1 180K 1 Resistor Chip 0402 1 1 R10 820 Resistor Chip 0402 1 R100 0 Resistor Chip 0402 1 R101 100K Resistor Chip 0402 1 R102 2 2 Resistor Chip 0402 1 R103 47 Resistor Chip 0402 1 R104 47 Resistor Chip 0402 1 R105 8 2K Resistor Chip 0402 1 R106 47K Resistor Chip 0402 1 R107 39K Resistor Chip 0402 1 R108 100K Resistor Chip 0402 1 R109 5 6K Resistor Chip 0402 1 R11 560 Resistor Chip 0402 1 R110 4 7K Resistor Chip 0402 1 R111 220K Resistor Chip 0402 1 R112 4 7K Resistor Chip 0402 1 R113 4 7K Resistor Chip 0402 1 R114 4 7M Resistor Chip 0402 1 R115 100K Resistor Chip 0402 1 R116 100K Resistor Chip 0402 1 R117 100K Resistor Chip 0402 1 R118 100K Resistor Chip 0402 1 R119 10K Resistor Chip 0402 1 R12 120K Resistor Chip 0402 1 R120 33K Resistor Chip 0402 1 R121 10K Resistor Chip 0402 1 R122 5 6K Resistor Chip 0402 1 R123 330 Resistor Chip 0402 1 R124 560 Resistor Chip 0402 1 R125 100 Resistor Chip 0402 1 R126 1K Resistor Chip 0402 1 R127 3 3K Resistor Chip 0402 1 R128 820 Resistor Chip 0402 1 R13 1 8K Resistor Chip 0402 1 R14 5 6K Resistor Chip 0402 1 Created by Approved by Rev No
12. Q18 KRA226S 019 KRC401E Q2 H L BFO67W ag 2564083 0 o uo 9 m 021 4075 09 03 03 m 0 Created by Approved by Rev No For Stage Release Date Page 40 of 49 SEMICONDUCTOR LEAD ASSIGNMENT AND BLOCK DIAGRAM A DIODE 1 KDS113 VHF TUNER BAND SWITCH APPLICATION 1 CATHODE 1 2 CATHODE 2 3 ANODE z 2 KDS114E VHF TUNER BAND SWITCH APPLICATION s 1 1 ANODE 2 CATHODE 3 KDS120 ULTRA HIGH SPEED SWITCHING APPLICATION CATHODE MARK 4 KDS121 ULTRA HIGH SPEED SWITCHING APPLICATION 1 ANODE 1 n 2 ANODE 2 3 CATHODE 5 154 VHF UHF TUNER AFC VCO FOR UHF BAND RADIO x 1 m a 9 lt 1 ANODE 2 CATHODE Created by Approved by Rev No For Stage Release Date Page 41 of 49 TRANSISTOR 1 2 3 4 5 6 7 8 9 KRA306E SWITCHING APPLICATION INTERFACE CIRCUIT AND DRIVER CIRCUIT APPLICATION 25 4083 HIGH FREQUENCY AMPLIFIER KRC404E SWITCHING APPLICATION INTERFACE CIRCUIT AND DRIVER CIRCUIT APPLICATION KRC405E SWITCHING APPLICATION INTERFACE CIRCUIT AND D
13. N N gt N 3 DIODE D1 D9 KDS114E KDS114E D13 D5 KDS114E KDS114E D2 D6 KDS121 KDS113E D10 D7 KDS114E KDS112 D3 D8 KDS114E KDS112 D301 KDS114E D302 KDV154B Created by Approved by Rev No For Stage Release Date Page 39 of 49 3 TRANSISTOR Q1 H L NE5510279A 0 00 Q23 0 2 0 2 40 5 60 4 00 024 2 70 404 3 90 0 35 Q25 PMR LPD 1 00 40 3 78 0 00 26 0 00 4 6 00 4 00 027 3 30 KRC404E 4 00 4 00 08 4 00 25 4226 0 00 0 00 03 H L 0 00 405 0 00 6 00 0301 6 00 25 4226 0 60 0 00 0302 0 00 25 4226 0 35 4 30 04 0 40 405 4 30 0 00 05 0 00 404 3 80 0 00 06 0 58 0 48 25 4226 5 80 0 00 07 0 00 2014 0 00 0 00 4 1 0 30 0 00 3 50 0 00 0 00 0 20 0 00 0 00 4 2 0 2 3 5 4 4 4 3 4 1 0 4 4 1 4 1 0 0 00 4 00 0 00 0 00 0 00 0 00 0 00 0 15 3 7 0 1 0 2 2 80 3 30 3 60 1 10 1 50 3 00 0 00 0 12 3 56 0 4 0 12 0 00 1 74 0 00 0 00 0 00 0 00 4 20 3 50 4 20 010 KRA306E 011 BFO67W 012 KRC404E 013 15055 014 KRA306E Q22 KTC4075E 016 KRA226S Q17 KRC405E
14. 16 433 45000 51 434 32500 17 433 47500 52 434 35000 18 433 50000 53 434 37500 19 433 52500 54 434 40000 20 433 55000 55 434 42500 21 433 57500 56 434 45000 22 433 60000 57 434 47500 23 433 62500 58 434 50000 24 433 65000 59 434 52500 25 433 67500 60 434 55000 26 433 70000 61 434 57500 27 433 72500 62 434 60000 28 433 75000 63 434 62500 29 433 77500 64 434 65000 30 433 80000 65 434 67500 31 433 82500 66 434 70000 32 433 85000 67 434 72500 33 433 87500 68 434 75000 34 433 90000 69 434 77500 35 433 92500 Created by Approved by Rev No For Stage Release Date Page 8 of 49 20200 Go ANTENNA_GND_T EH 1143 0 MICIN MI 2020D 9 49 20200 10 49 40400 Go ANTENNA_GND_T aL EH 1143 0 MICIN o 1 40400 1 FIDU6 PAGE 11 OF 49 40400 PAGE 12 OF 49 TEST AND ALIGNMENT PROCEDURE 1 RECOMMENDED TEST EQUIPMENT 1 1 HP8920A B Radio Communication Tester or equivalent 1 2 Fluke 187 Digital Voltmeter or equivalent 1 3 HPE3615A Power Supply or equivalent 2 TEST PREPARATION 2 1 Connect 6 0Vdc power supply to the positive battery terminal input point and the
15. Created by Approved by Rev No For Stage Release Date Page 35 of 49 R36 100K Resistor Chip 0402 1 R37 2 7K Resistor Chip 0402 1 R38 8 2K Resistor Chip 0402 1 R39 1 8M Resistor Chip 0402 1 R4 33K 1 Resistor Chip 0402 1 1 R40 2 7K Resistor Chip 0402 1 R41 220K Resistor Chip 0402 1 R42 47 Resistor Chip 0402 1 R43 560K Resistor Chip 0402 1 R44 2 2 Resistor Chip 0402 1 R45 2 2K Resistor Chip 0402 1 R46 10K Resistor Chip 0402 1 R47 1 8M Resistor Chip 0402 1 R48 100K Resistor Chip 0402 1 R49 220K Resistor Chip 0402 1 R5 10K Resistor Chip 0402 1 R50 100K Resistor Chip 0402 1 R51 4 7 Resistor Chip 0402 1 R52 4 7K Resistor Chip 0402 1 R53 1 5K Resistor Chip 0402 1 R54 22K Resistor Chip 0402 1 R55 2 7K Resistor Chip 0402 1 R56 4 7K Resistor Chip 0402 1 R57 2 2K Resistor Chip 0402 1 R58 5 6K Resistor Chip 0402 1 R59 10K Resistor Chip 0402 1 R6 3 3K Resistor Chip 0402 1 R60 27K Resistor Chip 0402 1 R61 27K Resistor Chip 0402 1 R62 15K Resistor Chip 0402 1 R63 470K Resistor Chip 0402 1 R64 2 2K Resistor Chip 0402 1 R65 10 Resistor Chip 0402 1 R66 47K Resistor Chip 0402 1 R67 470K Resistor Chip 0402 1 R68 100 TM NSM3101J280J3Z 1 R69 2 7K Resistor Chip 0402 1 R7 820K Resistor Chip 0402 1 R70 2 2K Resistor Chip 0402 1 R71 100K Resistor Chip 0402 1 R72 1K Resistor Chip 04
16. 0402 1 C17 2P 03 Capacitor Ceramic 0603 NPO 1 C171 0 1 Capacitor Chip Y5V 0402 1 C18 7P Capacitor Chip NPO 0402 1 C19 100P Capacitor Chip NPO 0402 1 C2 33P 03 Capacitor Ceramic 0603 NPO 1 C20 1P Capacitor Chip NPO 0402 1 C207 100P Capacitor Chip NPO 0402 1 C208 33P Capacitor Chip NPO 0402 1 C209 33P Capacitor Chip NPO 0402 1 C21 10P Capacitor Chip NPO 0402 1 C211 0 1 Capacitor Chip Y5V 0402 1 C213 100P Capacitor Chip NPO 0402 1 C218 Capacitor Chip 0402 1 219 100 Capacitor Chip 0402 1 22 100 Capacitor Chip 0402 1 221 100 Capacitor Chip 0402 1 222 68 Capacitor Chip 0402 1 223 22 Capacitor Chip 0402 1 22 Capacitor Chip 0402 1 223 Capacitor Chip 0402 1 224 22 Capacitor Chip 0402 1 224 8 Capacitor Chip 0402 1 23 100 Capacitor Chip 0402 1 24 0 1 Capacitor Chip Y5V 0402 1 C25 100P Capacitor Chip NPO 0402 1 C26 100P Capacitor Chip NPO 0402 1 C27 0 01 Capacitor Chip X7R 0402 1 C28 100P Capacitor Chip 0402 1 Created by Approved by Rev No For Stage Release Date Page 19 of 49 29 220P X7R Capacitor Chip X7R 0402 1 C3 0 1 Capacitor Chip Y5V 0402 1 C30 3P 03 Capacitor Ceramic 0603 NPO 1 C301 0 1 Capacito
17. Capacitor Chip 0402 1 C86 7P Capacitor Chip NPO 0402 1 C87 0 0022 Capacitor Chip X7R 0402 1 C88 0 1 Capacitor Chip Y5V 0402 1 C89 0 1 Capacitor Chip Y5V 0402 1 Created by Rev No For Stage Page 21 of 49 40250055 C90 680P Capacitor Chip X7R 0402 1 C91 270P NPO Capacitor Chip NPO 0402 1 C92 0 0022 Capacitor Chip X7R 0402 1 C93 0 015 Capacitor Chip X7R 0402 1 C94 0 1 Capacitor Chip Y5V 0402 1 C95 0 1 Capacitor Chip Y5V 0402 1 C96 0 1 Capacitor Chip Y5V 0402 1 C97 220P NPO Capacitor Chip NPO 0402 1 C98 0 1 Capacitor Chip Y5V 0402 1 C99 0 015 Capacitor Chip X7R 0402 1 CF1 21 4MHZ X tal filter 21 4MHz UM 5 1 CF2 CF450KHz 450KHz IFT 5mm 1 CF3 LTM450GU Ceramic filter LTM450GU 1 CMIC1 F9745AP342 34 Condensor Mic 1 CPU1 W742S81A XXXXX IC CPU 1 CT201 10P Trimmer 3 dia STC3M10 T1 1 CX201 4 MHz X tal D4 00C 20pF HS 49 S 1 D1 KDS114E Diode Switching 1 D10 KDS114E Diode Switching 1 D13 KDS114E Diode Switching 1 D2 KDS121 CHIP DIODE 1 D3 KDS114E Diode Switching 1 D301 KDS114E Diode Switching 1 D302 KDV154B Diode Vari cap 1 D4 KDS115 USM Diode Chip 1 D5 KDS114E Diode Switching 1 D6 KDS113E Diode Switching 1 D7 KDS112 Diode Chip 1 D8 KDS112 Diode Chip 1 D9 KDS114E Diode Switching 1 IC1 5018 IC IF 1 IC2 7386 1 1 201
18. Chip 0402 1 R12 120K Resistor Chip 0402 1 R120 33K Resistor Chip 0402 1 R121 10K Resistor Chip 0402 1 R122 5 6K Resistor Chip 0402 1 R123 330 Resistor Chip 0402 1 R13 1 8K Resistor Chip 0402 1 R14 10K Resistor Chip 0402 1 R15 2 2K Resistor Chip 0402 1 R16 10K Resistor Chip 0402 1 R17 220K Resistor Chip 0402 1 R18 470K Resistor Chip 0402 1 R19 100K Resistor Chip 0402 1 Created by Approved by Rev No For Stage Release Date Page 24 of 49 R2 15K Resistor Chip 0402 1 R20 680K Resistor Chip 0402 1 R202 1K Resistor Chip 0402 1 R203 5 6K Resistor Chip 0402 1 R204 10K Resistor Chip 0402 1 R206 0 Resistor Chip 0402 1 R207 100K Resistor Chip 0402 1 R21 1M Resistor Chip 0402 1 R214 1M Resistor Chip 0402 1 R216 1M Resistor Chip 0402 1 R22 100K Resistor Chip 0402 1 R222 100K Resistor Chip 0402 1 R224 100 Resistor Chip 0402 1 R226 22 Resistor Chip 0402 1 R23 2 2K Resistor Chip 0402 1 R24 100 03 Resistor Chip 0603 5 1 R25 3 3K Resistor Chip 0402 1 R26 33K Resistor Chip 0402 1 R27 33K Resistor Chip 0402 1 R28 6 8K Resistor Chip 0402 1 R29 2 2 Resistor Chip 0402 1 R3 2 2K Resistor Chip 0402 1 R30 91K Resistor Chip 0402 1 R301 10 Resistor Chip 0402 1 R302 1 5K Resistor Chip 0402 1 R303 3 3K Resistor Chip 0402 1 R304 4 7K Resistor Chip 0402 1 R306 180 Resistor Chip 0402 1 R307
19. TB31202 IC PLL 1 IC3 6201 IC Regulator 4V 1 1 4 5324 IC OP 1 IC5 324 IC OP 1 IC6 XC61CN2402MR 2 4Vdc Detector IC 1 49 Jack Dual LT2510C 1 11 0 35X1 7X5T R Inductor Air 1 L10 27NH 03 Inductor Chip 0603 1 L11 0 35X1 8X5T R Inductor Air 1 Created by Approved by Rev No For Stage Release Date Page 22 of 49 40252055 EE L12 5 6UH 05 Inductor Chip 0805 1 113 220 03 Inductor Chip 0603 1 L14 18NH Inductor Chip 0402 1 115 0 3X1 4X6T R Inductor Air 1 L16 100NH Inductor Chip 0402 1 L18 0 3X1 0X3T R Inductor Air 1 119 100NH Inductor Chip 0402 1 L2 10UH 05 Inductor Chip 0805 1 L3 0 3X1 4X6T R Inductor Air 1 L302 2 2UH 03 Inductor Chip 0603 1 L303 0 3X1 1X4T R Inductor Air 1 L4 47 NH Inductor Chip 0402 1 L5 33NH Inductor Chip 0402 1 L6 0 3X1 0X3T R Inductor Air 1 L7 0 35X1 8X5T R Inductor Air 1 L8 0 4X1 5X5T L Inductor Air 1 L9 27NH 03 Inductor Chip 0603 1 LCD1 LCD GX XXXXX 1 LED1 LTST S320GKT Diode LED SMT 1 LED2 DUAL LED KPBA 3010ESGC 1 PCB1 PCB 4 Layer for MT2020D 1 Q1 THN6601B Transistor Chip 1 Q10 KRA306E Transistor BRT 1 Q11 BFQ67W Transistor Chip 1 Q12 404 Transistor BRT 1 Q13 KTA1505 Transistor BRT 1 014 KRA306E Transistor BRT 1 Q15 KRA306E Transistor BRT 1 Q16 KRA226S Transistor BRT 1 Q17 KRC405E T
20. negative battery terminal input point GND into the negative terminal 2 3 Connect the HP8920A B RF Output port to the ANT point 2 4 TP12 should be connected to the Audio In Hi and TP10 should be connected to the Audio In Lo of the HP8920B 2 5 Set the unit at Ch1 446 00625MHz 3 CRYSTAL SELECT 3 1 X202 crystal is marked with red blue and no color marking Matching capacitors C223 C223A and C223B that are in PCB will be determined by the markings and are as follows w gt Crystal C223A C223B A Red Connect Connect B NO COLOR Connect NC C Blue NC NC 4 VCO ADJUSTMENT 4 1 Set the unit at PMR Ch1 446 00625 and connect a digital voltmeter to TP1 PD 4 2 Press the PTT Button so the unit is in transmit mode 4 3 Adjust L303 until the voltmeter reads around 3 1 3 2Vdc without VCO Plate L303 is located under the shieldcan Solder VCO Plate and let temperature stabilize Recheck TX VCO at Ch1 should be 2 8 3 1Vdc 4 4 Release the PTT switch so the unit will be in Receive mode 4 5 Observe the voltage at TP1 the voltage should be 2 5 3 2Vdc 4 6 Set the unit at PMR Ch8 446 09375 2 4 7 Press the PTT switch so the unit is in transmit mode 4 8 Observe the voltage at TP1 the voltage should be 2 8 3 2 4 9 Release the PTT switch so the unit will be in receive mode 4 10 Observe the voltage at TP1 the voltage should b
21. 02 1 C118 100P Capacitor Chip NPO 0402 1 C119 100P Capacitor Chip NPO 0402 1 C12 1UF Capacitor Chip Y5V 0603 1 C120 100P Capacitor Chip NPO 0402 1 C121 100P Capacitor Chip NPO 0402 1 C122 1P Capacitor Chip NPO 0402 1 C123 100P Capacitor Chip NPO 0402 1 C125 0 001 Capacitor Chip X7R 0402 1 C126 100P Capacitor Chip NPO 0402 1 C127 10UF 3X5 Capacitor Elect 3X5 1 C128 10P Capacitor Chip NPO 0402 1 C129 100 6 3 5X7 Capacitor Elect 1 C13 0 01 Capacitor Chip X7R 0402 1 C130 0 039 Capacitor Chip X7R 0402 1 C131 47uF 6 3 4X7 Capacitor Elect 1 C132 100P Capacitor Chip 0402 1 C133 10UF 3X5 Capacitor Elect 3X5 1 C134 0 1 Capacitor Chip Y5V 0402 1 C135 0 1 Capacitor Chip Y5V 0402 1 Created by Approved by Rev No For Stage Release Date Page 18 of 49 5 NNI 136 100 Capacitor Chip 0402 1 137 100 Capacitor Chip 0402 1 138 0 0027 Capacitor Chip 7 0402 1 139 47 Capacitor Chip 0402 1 14 Capacitor Chip 0402 1 C140 100P Capacitor Chip 0402 1 C141 100P Capacitor Chip NPO 0402 1 C142 100P Capacitor Chip NPO 0402 1 C143 100P Capacitor Chip NPO 0402 1 C144 10UF 3X5 Capacitor Elect 3X5 1 C15 2P 03 Capacitor Ceramic 0603 NPO 1 C16 220P Capacitor Chip X7R 0402 1 C162 100P Capacitor Chip NPO
22. 02 1 Created by Approved by Rev No For Stage Release Date Page 36 of 49 R73 180K Resistor Chip 0402 1 R74 91K Resistor Chip 0402 1 R75 12K Resistor Chip 0402 1 R76 470K Resistor Chip 0402 1 R77 10 Resistor Chip 0402 1 R78 150 Resistor Chip 0402 1 R79 470K 1 Resistor Chip 0402 1 1 R8 330 Resistor Chip 0402 1 R80 180K Resistor Chip 0402 1 R81 8 2K Resistor Chip 0402 1 R82 10K Resistor Chip 0402 1 R83 47 Resistor Chip 0402 1 R84 22K Resistor Chip 0402 1 R85 220K Resistor Chip 0402 1 R86 150 Resistor Chip 0402 1 R87 150 Resistor Chip 0402 1 R88 220K Resistor Chip 0402 1 R89 470 Resistor Chip 0402 1 R9 4 7 Resistor Chip 0402 1 R90 120K Resistor Chip 0402 1 R91 10K Resistor Chip 0402 1 R92 10K Resistor Chip 0402 1 R93 100K Resistor Chip 0402 1 R94 47 Resistor Chip 0402 1 R96 680 Resistor Chip 0402 1 R97 220K Resistor Chip 0402 1 R98 470K Resistor Chip 0402 1 R99 3 9K Resistor Chip 0402 1 RV1 220KB Semi fixed resistor 3 dia 1 RV2 4 7 Semi fixed resistor 3 dia 1 SF1 439MHz HDF 440DS SAW filter F 11SMD type 1 SPK1 Speaker MD36B 858 Speaker 36dia 8ohm 1 X202 20 95MHZ X tal DA20 950TF 16pF 49 5 1 Created by Approved by Rev No For Stage Release Date Page 37 of 49 4040 SEMICONDUCTOR VOLTAGE CHART
23. 1 Created by Approved by Rev No For Stage Release Date Page 27 of 49 4040 PARTS LIST C1 100P Capacitor Chip 0402 1 C10 100P Capacitor Chip 0402 1 C100 0 1 X7R Capacitor Chip X7R 0603 1 C101 0 1 Capacitor Chip Y5V 0402 1 C102 0 1 Capacitor Chip Y5V 0402 1 C103 100P Capacitor Chip NPO 0402 1 C104 100P Capacitor Chip NPO 0402 1 C105 100P Capacitor Chip NPO 0402 1 C106 10UF 3X5 Capacitor Elect 3X5 1 C107 0 1 Capacitor Chip Y5V 0402 1 C108 820P X7R Capacitor Chip X7R 0402 1 C109 0 0022 Capacitor Chip X7R 0402 1 C11 0 0082 Capacitor Chip X7R 0402 1 C110 0 022 Capacitor Chip X7R 0402 1 C111 0 0022 Capacitor Chip X7R 0402 1 C112 0 022 Capacitor Chip X7R 0402 1 C113 0 1 Capacitor Chip Y5V 0402 1 C115 3P Capacitor Chip NPO 0402 1 C116 100P 03 Capacitor Ceramic 0603 NPO 1 C117 0 1 Capacitor Chip Y5V 0402 1 C118 100P Capacitor Chip NPO 0402 1 C119 100P Capacitor Chip NPO 0402 1 C12 1UF Capacitor Chip Y5V 0603 1 C120 100P Capacitor Chip NPO 0402 1 C121 100P Capacitor Chip NPO 0402 1 C122 1P Capacitor Chip NPO 0402 1 C125 0 001 Capacitor Chip X7R 0402 1 C126 100P Capacitor Chip NPO 0402 1 C127 10UF 3X5 Capacitor Elect 3X5 1 C128 10P Capacitor Chip NPO 0402 1 C129 100 6 3 5X7 Capacitor Elect 1 C13 0 01 Capacitor Chip X7R 0402 1 C130 0 039 Capacit
24. 2 1 R67 470K Resistor Chip 0402 1 R68 100 TM NSM3101J280J3Z 1 R69 2 7K Resistor Chip 0402 1 R7 820K Resistor Chip 0402 1 R70 2 2K Resistor Chip 0402 1 R71 100K Resistor Chip 0402 1 R72 1K Resistor Chip 0402 1 R73 180K Resistor Chip 0402 1 R74 91K Resistor Chip 0402 1 R75 12K Resistor Chip 0402 1 R76 470K Resistor Chip 0402 1 R77 10 Resistor Chip 0402 1 R78 150 Resistor Chip 0402 1 Created by Approved by Rev No For Stage Release Date Page 26 of 49 R79 470K 1 Resistor Chip 0402 1 1 R8 330 Resistor Chip 0402 1 R80 180K Resistor Chip 0402 1 R81 8 2K Resistor Chip 0402 1 R82 10K Resistor Chip 0402 1 R83 47 Resistor Chip 0402 1 R84 22K Resistor Chip 0402 1 R85 220K Resistor Chip 0402 1 R86 150 Resistor Chip 0402 1 R87 150 Resistor Chip 0402 1 R88 220K Resistor Chip 0402 1 R89 AT OK Resistor Chip 0402 1 R9 4 7 Resistor Chip 0402 1 R90 120K Resistor Chip 0402 1 R91 10K Resistor Chip 0402 1 R92 10K Resistor Chip 0402 1 R93 100K Resistor Chip 0402 1 R94 47 Resistor Chip 0402 1 R96 680 Resistor Chip 0402 1 R97 220K Resistor Chip 0402 1 R98 470K Resistor Chip 0402 1 R99 6 8K Resistor Chip 0402 1 RV1 220KB Semi fixed resistor 3 dia 1 RV2 4 7 Semi fixed resistor 3 dia 1 SF1 439MHz HDF 440DS SAW filter F 11SMD type 1 SPK1 Speaker MD36B 858 Speaker 36dia 8ohm 1 X202 20 95MHZ X tal DA20 950TF 16pF 49 5
25. 2005 2005 MT 2020D EXPLODED VIEW PARTS LIST DESCRIPTION QTY REV REMARK MT20200 020 POP ABEL MT20200 005 120200 018 LCD WINDOW DOUBLE SIDE TAPE for WINDOW MT20200 001 FRONT COVER MT2020D 008 MT20200 009 LED LENS KEY PAD MT2020D 01 3 LCD BRACKET MT20200 012 20200 007 BACK LIGHT LENS 65 016 DOUBLE SIDE TAPE for REFLECTIVE MT20200 017 REFLECTIVE SHEET 6223 018 MT20200 010 METAL DOME PIT BUTTON MT20200 008 ANTENNA HOUSING 6223 012 01 120200 002 TERMINAL A 01 BACK COVER ee ee 9 99 Doa mas pom Je Rd SCREW PH 2 6X8 Black MT20200 01 1 MT20200 004 EAR CAP BELT CLIP 720200 019 PRODUCTION LABEL MI20200 015 6223 014 01 TERMINAL D TERMINAL C 01 20200 014 TERMINAL B SHIELD PLATE for VCO 65 013 120200 003 VCO BATTERY COVER 120200 016 CHARGE TERMINAL MT20200 021 FELT for SPEAKER R F SHIELD PLATE LCD LCD PCB PCB MIC MIC SPEAKER 2 o lt lt jj 4 Created by Approved by Rev No For Stage Release Date Page 47 of 49 Modei No MT2020 4040D SERVICE MANUAL Drawing Rev Date January 5 2005
26. 33 Resistor Chip 0402 1 R309 6 8K Resistor Chip 0402 1 R31 270K Resistor Chip 0402 1 R311 12K Resistor Chip 0402 1 R32 4 7K Resistor Chip 0402 1 R33 82K 1 Resistor Chip 0402 1 1 R34 4 7K Resistor Chip 0402 1 R35 100K Resistor Chip 0402 1 R36 100K Resistor Chip 0402 1 R37 2 7K Resistor Chip 0402 1 R38 8 2K Resistor Chip 0402 1 R39 1 8M Resistor Chip 0402 1 R4 33K 1 Resistor Chip 0402 1 1 Created by Approved by Rev No For Stage Release Date Page 25 of 49 R40 2 7K Resistor Chip 0402 1 R41 220K Resistor Chip 0402 1 R42 47 Resistor Chip 0402 1 R43 560K Resistor Chip 0402 1 R44 2 2 Resistor Chip 0402 1 R45 2 2K Resistor Chip 0402 1 R46 10K Resistor Chip 0402 1 R47 1 8M Resistor Chip 0402 1 R48 100K Resistor Chip 0402 1 R49 220K Resistor Chip 0402 1 R5 10K Resistor Chip 0402 1 R50 100K Resistor Chip 0402 1 R51 4 7 Resistor Chip 0402 1 R52 4 7K Resistor Chip 0402 1 R54 22K Resistor Chip 0402 1 R55 2 7K Resistor Chip 0402 1 R56 4 7K Resistor Chip 0402 1 R57 2 2K Resistor Chip 0402 1 R58 5 6K Resistor Chip 0402 1 R59 10K Resistor Chip 0402 1 R6 3 3K Resistor Chip 0402 1 R60 27K Resistor Chip 0402 1 R61 27K Resistor Chip 0402 1 R62 15K Resistor Chip 0402 1 R63 470K Resistor Chip 0402 1 R64 2 2K Resistor Chip 0402 1 R65 10 Resistor Chip 0402 1 R66 47K Resistor Chip 040
27. 47 Capacitor Chip X7R 0402 1 C315 1UF Capacitor Chip Y5V 0603 1 C316 0 068 Capacitor Chip Y5V 0402 1 C32 0 1 X7R Capacitor Chip X7R 0603 1 C33 0 1 Capacitor Chip Y5V 0402 1 C34 0 1 Capacitor Chip Y5V 0402 1 C35 100P Capacitor Chip 0402 1 C36 0 33 Capacitor Chip Y5V 0603 1 C37 6P Capacitor Chip NPO 0402 1 C39 100P Capacitor Chip 0402 1 C3A 4 03 0603 1 4 4 Capacitor Chip 0402 1 C40 100P Capacitor Chip 0402 1 C41 15P Capacitor Chip NPO 0402 1 C42 100P Capacitor Chip NPO 0402 1 C43 100P Capacitor Chip 0402 1 C44 15P Capacitor Chip NPO 0402 1 C45 7P Capacitor Chip NPO 0402 1 C46 100P Capacitor Chip NPO 0402 1 C47 0 1 Capacitor Chip Y5V 0402 1 C48 0 047 Capacitor Chip X7R 0402 1 C49 100P Capacitor Chip NPO 0402 1 C5 0 056 Capacitor Chip X7R 0402 1 C50 0 01 Capacitor Chip X7R 0402 1 C501 100P Capacitor Chip 0402 1 Created by Approved by Rev No For Stage Release Date Page 30 of 49 5 Se 52 0 1 Capacitor Chip Y5V 0402 1 C53 0 1 X7R Capacitor Chip X7R 0603 1 C54 470 7 0402 1 55 0 1 Capacitor Chip Y5V 0402 1 C56 100P Capacitor Chip 0402 1 C57 0 1 Capacitor Chip Y5V 0402 1 C58 100P Capacitor Chip 0402 1 C59 100P
28. 5 CPU Controlled PLL Synthesizer CPU Controlled double conversion super heterodyne 21 4 MHz 450 KHz 446 00625MHz 446 09375 MHz 433 07500 MHz 433 77500 MHz 0 000596 30 hours typical 4pcs AAA size Alkaline Battery or 4 8Vdc Ni MH Battery Pack Electrical 15 c 55 4096 70 lt 120 12dB SINAD 2Vrms w o load 300 Hz 2500 Hz 54dB 60dB 60dB 54dB 500Mw 2020 1W 500mW 40400 LPD Band 10mW Max Deviation PMR 2 5 KHz MAX LPD 5 0 KHz MAX 5ppm 15 55 C Current Drain lt 500 mA Spurious Emission Conducted 50dB Antenna Impedance 50 Ohm Created by Approved by Rev No For Stage Release Date Page 3 of 49 lt lt a Y uo XJA 38d yo 10 2900 897 2 521 8 691 9 52 391 TAY isnra JIN 1YNN31X3 NOILYINGON f 104100 55212 1199 Pol 29A AH311VB8 301911934 Av 7938 ASM 1142 x HJ vidsid 021 2 3311041402 0491 114 OXOL 2 66702 A331178 B 91 213 05 2 55212 2 iO LOLX Host ZH lt so 9 91 0 91 0 E
29. C213 100P Capacitor Chip NPO 0402 1 C218 5P Capacitor Chip NPO 0402 1 C219 100P Capacitor Chip NPO 0402 1 C22 100P Capacitor Chip NPO 0402 1 C221 100P Capacitor Chip NPO 0402 1 C222 68P Capacitor Chip NPO 0402 1 C223 22P Capacitor Chip NPO 0402 1 C223A 3P Capacitor Chip NPO 0402 1 C223B 3P Capacitor Chip NPO 0402 1 C224 22P Capacitor Chip NPO 0402 1 C224A 8P Capacitor Chip NPO 0402 1 C23 100P Capacitor Chip 0402 1 C24 0 1 Capacitor Chip Y5V 0402 1 C25 100P Capacitor Chip NPO 0402 1 C26 100P Capacitor Chip NPO 0402 1 C27 0 01 Capacitor Chip X7R 0402 1 Created by Approved by Rev No For Stage Release Date Page 29 of 49 7 5 28 100 0402 1 29 220P X7R Capacitor Chip X7R 0402 1 C3 0 1 Capacitor Chip Y5V 0402 1 C30 3P 03 Capacitor Ceramic 0603 NPO 1 C301 0 1 Capacitor Chip Y5V 0402 1 C302 22P Capacitor Chip 0402 1 C303 4P Capacitor Chip 0402 1 C304 3P Capacitor Chip 0402 1 C305 220P Capacitor Chip NPO 0402 1 C306 100P Capacitor Chip 0402 1 C307 3P Capacitor Chip 0402 1 C308 470P Capacitor Chip X7R 0402 1 C309 18P Capacitor Chip 0402 1 C31 220P X7R Capacitor Chip X7R 0402 1 C311 12P Capacitor Chip NPO 0402 1 C312 Capacitor Chip 0402 1 C314 0 0
30. Capacitor Chip 0402 1 C6 22P 03 Capacitor Ceramic 0603 NPO 1 C60 0 1 Capacitor Chip Y5V 0402 1 C61 100P Capacitor Chip NPO 0402 1 C62 100P Capacitor Chip NPO 0402 1 C63 100P Capacitor Chip NPO 0402 1 C64 2 7P Capacitor Chip NPO 0402 1 C65 0 033 Capacitor Chip X7R 0402 1 C66 100P Capacitor Chip NPO 0402 1 C67 0 01 Capacitor Chip X7R 0402 1 C68 100P Capacitor Chip NPO 0402 1 C69 10UF 3X5 Capacitor Elect 3X5 1 C7 100P Capacitor Chip NPO 0402 1 C70 220 6 3 6 3 7 Capacitor Elect 1 C71 0 1 Capacitor Chip Y5V 0402 1 C72 0 1 Capacitor Chip Y5V 0402 1 C73 100P Capacitor Chip 0402 1 C74 100P Capacitor Chip NPO 0402 1 C75 0 1 Capacitor Chip Y5V 0402 1 C76 100P Capacitor Chip NPO 0402 1 C77 0 01 Capacitor Chip X7R 0402 1 C78 0 1 Capacitor Chip Y5V 0402 1 C79 100P Capacitor Chip 0402 1 C8 100P Capacitor Chip 0402 1 C80 100P Capacitor Chip 0402 1 C81 100P Capacitor Chip 0402 1 C82 0 001 Capacitor Chip X7R 0402 1 C83 100P Capacitor Chip 0402 1 C84 1UF Capacitor Chip Y5V 0603 1 C85 100P Capacitor Chip 0402 1 C86 7P Capacitor Chip NPO 0402 1 C87 0 0022 Capacitor Chip X7R 0402 1 C88 0 1 Capacitor Chip Y5V 0402 1 C89 0 1 Capacitor Chip Y5V 0402 1 Created by Rev No For Stage Page 31 of 49 a pes _ C9 7P 03 Capacito
31. Model No INTEK Ee 2020 4040 PMR 8 Channel 69Channel Service Manual Created by Approved by Rev No For Stage Release Date Page 1 of 49 Table of Contents Specifications 3 Block Diagram 4 5 7 Schematic Diagram 6 Channel Frequency Charts 8 Printed Circuit Board 9 12 Test and Alignment Procedure 13 17 Parts List 18 37 Semiconductor Voltage Chart 38 40 Semiconductor Lead Assignment and Block Diagram 41 45 Exploded View and Parts List 46 49 Created by Approved by Rev No For Stage Release Date Page 2 of 49 2020 40400 SERVICE MANUAL EE Date January 5 2005 SPECIFICATIONS STANDARD TEST CONDITIONS Supply Voltage Battery 6 0Vdc Antenna Impedance 50 Ohm Audio Frequency 1 KHz Main Signal Input 1mV Deviation PMR LPD Audio Output Power Audio Output Impedance Test Temperature GENERAL SPECIFICATIONS Transmitter Receiver system Intermediate Frequency 1 2 Operating Frequencies PMR LPD Frequency Stability Battery Life Battery Transmitter Receiver Switching Ambient Conditions Temperature Humidity RECEIVER SPECIFICATIONS Sensitivity Audio Output Frequency Response Image Rejection Adjacent Channel Rejection Inter Modulation Distortion Conducted Rx Spurious TRANSMITTER SPECIFICATIONS Output Power Conducted PMR Band AF 1 1 5 KHz Dev AF 1 KHz 3 0 KHz Dev 1 8Vrms 8 ohms non inductive 2
32. Power Supply to 5 Set the unit at PMR Ch1 use short cable 6 7 Press the PTT button so the unit is in transmit mode Make sure Power Supply is during PTT 6 8 Transmit Power should be between 1 4 2 5 6 9 Solder J3 Press the PTT button so the unit is in transmit mode Transmit Power should be between 0 4 1 0W 6 10 Set the unit at LPD Ch1 6 11 Press the PTT button so the unit is in transmit mode Ensure the TX Power is 8 70mW 7 TRANSMITTER DEVIATION ADJUSTMENT 7 1 Set the unit at PMR Ch1 Connect an audio generator 600ohms to the microphone terminal pads The audio frequency should be set at 1kHz with a level of 200mVrms 7 2 Connect an FM Deviation Meter on the HP8920B on ANT point Set the monitor to read Pk to Pk 2 deviation Set Filter 1 to 50Hz and Filter 210 15kHz De emphasis should be set to Off 7 3 Press the PTT button so the unit will be in transmit mode 7 4 Adjust RV2 and observe the reading at the Deviation Meter the reading should be between 1 5 to 1 8kHz MT2020D between 1 8 to 2 1kHz 40400 7 5 Set the unit Ch1 Set the monitor to read Pk to Pk 2 deviation Set Filter 1 to 50Hz and Filter 2 to 15kHz De emphasis should be set to Off Set the IF Filter to 230kHz Press the PTT button and check the Deviation Meter the reading should be 2 8 5 0kHz 7 6 At PMR Ch1 decrease the audio generator level until the deviation reads 1 2 kHz The generator level should be between 3 10m
33. RIVER CIRCUIT APPLICATION KRC401E SWITCHING APPLICATION INTERFACE CIRCUIT AND DRIVER CIRCUIT APPLICATION KRA226S HIGH CURRENT SWITCHING APPLICATION KTA1505S GENERAL PURPOSE SWITCHING APPLICATION KTA2014E GENERAL PURPOSE SWITCHING APPLICATION 25 4226 HIGH FREQUENCY LOW NOISE AMPLIFIER 3 1 Base 2 Emitter 3 Collector 1 2 10 NE5510279A SILICON POWER MOS FET Source Source Drain Gate Drain Created by Approved by Rev No For Stage Release Date Page 42 of 49 22 24 IC 1 AZ386 LOW VOLTAGE AUDIO AMPLIFIER 8188 0187 4306 3006 om 8008 omo tm 754 ALL 104 088 GAIN BYPASS Vout 2 XC61N2402MR STANDARD VOLTAGE DETECTOR Vout Vin SSOT 24 8C 82 VIEW TOP VIEW Created by Approved by Rev No For Stage Release Date Page 43 of 49 2 324 3 35018 Block Diagram Inverti Output4 Input4 Outputi Inverting Input 1 inverting Input4 inverting Inverting Input3 Input3 Output3 Non Inverting Output inverting Input 2 Input 2 inverting Input 1 PIN CONNECTIONS r Kc Mixer Input Ground Mixer Output Audio Mute Voc Scan Control Limiter Input Squelch Inpu
34. V 7 7 Check that the transmit audio distortion is less than 596 TX Distortion should be checked at 1 2kHz Modulation using Narrowband Filter with De Emphasis ON 7 8 Set the CTCSS to Code 1 Turn OFF the audio generator Press the PTT button so the unit will be in transmit mode 7 9 Confirm that the CTCSS Code modulation is between 0 4 to 0 7kHz 7 10 Set the CTCSS to Code 38 Press the PTT button so the unit will be in transmit mode 7 11 Confirm that the CTCSS Code modulation is between 0 4 to 0 7kHz Created by Approved by Rev No For Stage Release Date Page 14 of 49 RECEIVER ALIGNMENT 8 1 Set the unit equipment for RX Test SEE FIGURE 3 Set the RF Generator level to 47dBm The generator should be set for 1 5kHz deviation at 1kHz modulation Set the Impedance at 8ohms 8 2 Set Filter 1 to 25Hz and Filter 2 to 15kHz 8 3 Set the unit at PMR Ch1 Set the Volume level for 4 default Level Align CF2 for maximum level Check the audio level should be 0 27 0 6Vrms 8 4 Confirm that the RX Distortion is less than 596 8 5 Reduce the RF Generator signal level until a 12dB Sinad reading is achieved The RF Generator level should be less than 120dBm 8 6 Set the RF Generator level to A7dBm and set the unit Volume Level to maximum 8 7 Check the maximum Audio Output Level should be 1 70Vrms 8 8 Set the unit at LPD Channel 1 8 9 Set the RF generator at 3 0kHz deviation at 1kHz modulation 8 10 Repe
35. at Procedure 8 5 and confirm that the RF Generator is less than 122dBm at 12dB SINAD 9 SQUELCH THRESHOLD AND HYSTERISIS 10 9 1 Set unit same as 8 1 9 2 Set the RF Generator level until unit is at 2dB Sinad or unit is squelched RX Off 9 3 Slowly increase the RF Signal Generator level until the unit un squelches RX On confirm that the sensitivity is between 6 14dB SINAD PMR Band VOX TEST 10 1 Set the unit into VOX Mode Level 2 The VOX icon should be displayed on the LCD 10 2 Connect an audio generator into the microphone terminal The audio frequency should be set for 1 2 frequency with a level of OmVrms and the output should be turned off 10 3 Turn on the output of the audio generator 10 4 Increase the Audio Generator level until unit goes into TX Mode 10 5 Check the Generator level it should be between 0 8 2 0mV 11 LOW BATTERY LEVEL TEST 11 1 Set the unit into standby mode 11 2 Set the Power Supply voltage to 4 8Vdc 11 3 Slowly decrease the Power Supply Voltage until the Battery icon appears and blink 11 4 Observe the Power Supply Level The level must be between 4 1 to 4 4Vdc Created by Approved by Rev No For Stage Release Date Page 15 of 49 FIGURE 1 VCO TEST 50 OHMS LOAD 4 POWER SUPPLY E mm DIGITAL VOLTMETER m Wr 40400 A1 BATT Uys 1 1 FIGURE 2 TX TEST
36. e 2 5 3 2 4 11 Set the unit at LPD Ch1 433 075 4 12 Press the PTT switch so the unit 1 in transmit mode 4 13 Observe the voltage at TP1 the voltage should be 1 0 1 8 4 14 Release the PTT switch so the unit will be in receive mode 4 15 Observe the voltage at TP1 the voltage should be 0 9 1 7 NOTE Above Specifications are measured with VCO Plate soldered Created by Approved by Rev No For Stage Release Date Page 13 of 49 5 TRANSMITTER FREQUENCY ALIGNMENT Equipment Setting Filter 5 0Hz 15kHz IF Filter PMR 15kHz LPD 230kHz De Emphasis OFF Monitor Pk Pk 2 Input 200mVrms 1kHz Deviation 5 1 Set the unit equipment for TX Test SEE FIGURE 2 Set the unit at PMR Ch1 Press the PTT button so the unit will be in transmit mode 5 2 Adjust CT201 trimmer capacitor until such that the output frequency is equal to the channel frequency with maximum error of 200Hz OQA Limit of 800 2 Production will control as follows PCBA Alignment 200Hz Casing Test 500Hz Limit 4 800Hz 6 TRANSMITTER OUTPUT POWER CHECK MT2020D 6 1 Set the unit at PMR use short cable 6 2 Press the PTT button so the unit is in transmit mode 6 3 Transmit Power should be between 0 4 1 0 6 4 Set the unit at LPD Ch1 6 5 Press the PTT button so the unit is in transmit mode Ensure the TX Power is 10 70mW MT4040D 6 6 Set the
37. or Chip X7R 0402 1 C131 47uF 6 3 4X7 Capacitor Elect 1 C132 100P Capacitor Chip 0402 1 C133 10UF 3X5 Capacitor Elect 3X5 1 C134 0 1 Capacitor Chip Y5V 0402 1 C135 0 1 Capacitor Chip Y5V 0402 1 C136 100P Capacitor Chip NPO 0402 1 Created by Approved by Rev No For Stage Release Date Page 28 of 49 pes ESTEE C137 100P Capacitor Chip NPO 0402 1 C138 0 0027 Capacitor Chip X7R 0402 1 C139 47 Capacitor Chip 0402 1 14 Capacitor Chip 0402 1 C140 100P Capacitor Chip 0402 1 C141 100P Capacitor Chip NPO 0402 1 C142 100P Capacitor Chip 0402 1 C143 100P Capacitor Chip NPO 0402 1 C144 10UF 3X5 Capacitor Elect 3X5 1 C146 100P Capacitor Chip NPO 0402 1 C147 3P Capacitor Chip NPO 0402 1 C15 2P 03 Capacitor Ceramic 0603 NPO 1 C16 220P Capacitor Chip X7R 0402 1 C162 100P Capacitor Chip NPO 0402 1 C17 2P 03 Capacitor Ceramic 0603 NPO 1 C171 0 1 Capacitor Chip Y5V 0402 1 C18 Capacitor Chip 0402 1 19 100 Capacitor Chip 0402 1 2 03 Capacitor Ceramic 0603 1 20 1 Capacitor Chip 0402 1 207 100 Capacitor Chip 0402 1 208 Capacitor Chip 0402 1 209 Capacitor Chip 0402 1 21 24 Capacitor Chip 0402 1 211 0 1 Capacitor Chip Y5V 0402 1
38. r Ceramic 0603 NPO 1 C90 680P Capacitor Chip X7R 0402 1 C91 270P NPO Capacitor Chip NPO 0402 1 C92 0 0022 Capacitor Chip X7R 0402 1 C93 0 015 Capacitor Chip X7R 0402 1 C94 0 1 Capacitor Chip Y5V 0402 1 C95 0 1 Capacitor Chip Y5V 0402 1 C96 0 1 Capacitor Chip Y5V 0402 1 C97 220 Capacitor Chip 0402 1 C98 0 1 Capacitor Chip Y5V 0402 1 C99 0 015 Capacitor Chip X7R 0402 1 CF1 21 4MHZ X tal filter 21 4MHz UM 5 1 CF2 CF450KHz 450KHz IFT 5mm 1 CF3 LTM450GU Ceramic filter LTM450GU 1 CMIC1 F9745AP342 34 Condensor Mic 1 CPU1 W742S81A XXXXX IC CPU 1 CT201 10P Trimmer 3 dia STC3M10 T1 1 CX201 4 MHz X tal D4 00C 20pF HS 49 S 1 D1 KDS114E Diode Switching 1 D10 KDS114E Diode Switching 1 D13 KDS114E Diode Switching 1 D2 KDS121 CHIP DIODE 1 D3 KDS114E Diode Switching 1 D301 KDS114E Diode Switching 1 D302 KDV154B Diode Vari cap 1 D5 KDS114E Diode Switching 1 D6 KDS113E Diode Switching 1 07 KDS112 Diode Chip 1 D8 KDS112 Diode Chip 1 D9 KDS114E Diode Switching 1 IC1 5018 IC IF 1 IC2 7386 1 5 1 1 201 1831202 IC PLL 1 IC3 6201 IC Regulator 4V 1 1 4 5324 IC OP 1 IC5 324 IC OP 1 IC6 XC61CN2402MR 2 4Vdc Detector IC 1 49 EXT MIC Jack Dual LT2510C 1 11 0 35X1 7X5T R Inductor Air 1 L10 27NH 03 Inductor Chip 0603 1 L11 0 35X1 8X5T R Inductor Air 1 Created by Approved by Rev No For Stage Release Date Page 32 of 49
39. r Chip Y5V 0402 1 C302 22P Capacitor Chip NPO 0402 1 C303 4 Capacitor Chip 0402 1 C304 3P Capacitor Chip 0402 1 C305 220P Capacitor Chip NPO 0402 1 C306 5P Capacitor Chip 0402 1 C307 3P Capacitor Chip 0402 1 C308 470P Capacitor Chip X7R 0402 1 C309 18P Capacitor Chip 0402 1 C31 220P X7R Capacitor Chip X7R 0402 1 C311 12P Capacitor Chip NPO 0402 1 C312 Capacitor Chip 0402 1 C314 0 039 Capacitor Chip X7R 0402 1 C315 1UF Capacitor Chip Y5V 0603 1 C316 0 033 Capacitor Chip Y5V 0402 1 C32 0 1 X7R Capacitor Chip X7R 0603 1 C33 0 1 Capacitor Chip Y5V 0402 1 C34 0 1 Capacitor Chip Y5V 0402 1 C35 100P Capacitor Chip 0402 1 C36 0 33 Capacitor Chip Y5V 0603 1 C37 6P Capacitor Chip NPO 0402 1 C38 100P Capacitor Chip 0402 1 C39 100P Capacitor Chip 0402 1 C3A 4P 03 Capacitor Ceramic 0603 NPO 1 C4 4P Capacitor Chip 0402 1 C40 100P Capacitor Chip 0402 1 C41 15P Capacitor Chip NPO 0402 1 C42 100P Capacitor Chip NPO 0402 1 C43 100P Capacitor Chip 0402 1 C44 15P Capacitor Chip NPO 0402 1 C45 7P Capacitor Chip NPO 0402 1 C46 100P Capacitor Chip NPO 0402 1 C47 0 1 Capacitor Chip Y5V 0402 1 C48 0 047 Capacitor Chip X7R 0402 1 C49 100P Capacitor Chip 0402 1 C5 0 056 Capacitor Chip X7R 0402 1 C50 0 01 Capacitor Chip X7R 0402 1 C501 100P Capacitor Chip NPO 0402 1 Created by Approved by Rev No For Stage Release Date Page 20 of 49
40. ransistor BRT 1 Q18 KRA226S Transistor BRT 1 Q19 KRC401E Transistor BRT 1 Q2 25 4226 Transistor Chip 1 021 KTC4075E Transistor Chip 1 Q22 KTC4075E Transistor Chip 1 Q23 KRC405E Transistor BRT 1 Q24 KRC404E Transistor BRT 1 Q25 KRC405E Transistor BRT 1 Q26 KRA304E Transistor BRT 1 Q27 KRC404E Transistor BRT 1 Q301 25 4226 Transistor Chip 1 Created by Approved by Rev No For Stage Release Date Page 23 of 49 0302 25 4226 Transistor Chip 1 Q5 KRC404E Transistor BRT 1 Q6 25 4226 Transistor Chip 1 Q7 KTA2014E Transistor Chip 1 Q8 25 4226 Transistor Chip 1 Q9 25 4083 Transistor Chip 1 R1 180K 1 Resistor Chip 0402 1 1 R10 1K Resistor Chip 0402 1 R100 0 Resistor Chip 0402 1 R101 100K Resistor Chip 0402 1 R102 1M Resistor Chip 0402 1 R103 47 Resistor Chip 0402 1 R104 47 Resistor Chip 0402 1 R105 8 2K Resistor Chip 0402 1 R106 47K Resistor Chip 0402 1 R107 39K Resistor Chip 0402 1 R108 100K Resistor Chip 0402 1 R109 5 6K Resistor Chip 0402 1 R11 560 Resistor Chip 0402 1 R110 4 7K Resistor Chip 0402 1 R111 220K Resistor Chip 0402 1 R112 4 7K Resistor Chip 0402 1 R113 4 7K Resistor Chip 0402 1 R114 4 7M Resistor Chip 0402 1 R115 100K Resistor Chip 0402 1 R116 100K Resistor Chip 0402 1 R117 100K Resistor Chip 0402 1 R118 100K Resistor Chip 0402 1 R119 10K Resistor
41. t Filter Output Decoupling Filter Input F Demodulator Quad Coil Output Top View Mixer Scan Squelch Filter Filter Recovered Input Gnd Mute Control In Output Input Audio 16 15 14 13 12 11 10 9 Squelch Trigger with Hysteresis Limiter Amp T Demodulator Oscillator Crystal Mixer Voo Limiter Decouplin Quad Ose utput Input Coil Created by Approved by Rev No For Stage Release Date Page 44 of 49 4 TB32102 r t 0 09 69 3 2 9 9 SWITCH REFERENCE PROGRAMMABLE DIVIDER CONTROL CIRCUIT PHASE COMPARATOR LOCK DETECTOR CK DATA 8 PHASE COMPARATOR Cmn ow T Vec 1 CPU Vec 5 201 1 Li 2 3 VOUT VSS VIN 50 25 TOP VIEW SOT 89 TOP VIEW Reference Created by Approved by Rev No For Stage Release Date Page 45 of 49 Modei No MT2020 4040D SERVICE MANUAL Drawing Rev Date January 5 2005 20200 EXPLODED VIEW Created by Approved by Rev No For Stage Release Date Page 46 of 49 Model No Tritle MT2020 4040D SERVICE MANUAL Rev Date January 5 2005 Drawing Date Rev Date January 5

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