Kirisun PT4200 Service Manual
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Kirisun PT4200 Service Manual

Professional two-way radio
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PROFESSIONAL
TWO-WAY RADIO
PT4200
FM PORTABLE RADIO
SERVICE MANUAL
V060802

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Summary of Contents for Kirisun PT4200

  • Page 1 PROFESSIONAL TWO-WAY RADIO PT4200 FM PORTABLE RADIO SERVICE MANUAL V060802...

  • Page 2: Table Of Contents

    Appendix 5 Accessory List Kirisun Electronic (Shenzhen) Co., Ltd owns the copyright of the MCU software..22 Figure 1 PT4200 Top Board Position Mark Diagram Kirisun Electronic (Shenzhen) Co., Ltd owns the copyright of the radio outward/structure/circuit design..23 Figure 2 PT4200 Bottom Board Position Mark Diagram Kirisun Electronic (Shenzhen) Co., Ltd owns the...

  • Page 3: Chapter 1 Introduction

    1.1 Introduction This manual applies to the service and maintenance of PT4200 Product serial number has been damaged or the product series of FM mobile radios, and is designed for the engineers and trademark is difficult to identify.

  • Page 4: Chapter 3 Electrocircuit

    PT4200 SERVICE MANUAL Chapter 3 Electrocircuit IC5 inner circuit and X3 (49.5MHz) compose the 2nd local oscillator. The 2nd local oscillation (49.5MHz) and the 1st IF signal 3.1 Frequency Configuration (49.95MHz) are mixed at IC5 to generate the 2nd IF 450MHz .
  • Page 5 PT4200 SERVICE MANUAL CTCSS Signal Filtering amplified, the amplitude of them is limited, and are filtered, they are sent to VCO together with CTCSS/DCS for modulation. The IC5 demodulated output audio signals may contain CTCSS (continuous tone coded squelch system) and DCS (digital coded D13, D308, and Q24 constitute AGC circuit which decreases squelch).
  • Page 6 PT4200 SERVICE MANUAL IC15 is a voice memory chip which stores the voice indication of channels, and every time you change the channel, the speaker will Memorizer E2PROM AT24C08 sound voice annunciation of the current channel number. Press Memorizes the radio channel data, CTCSS/DCS data, and voice annunciation key will repeat the voice annunciation of the other data of function setting and parameter adjustment.
  • Page 7 PT4200 SERVICE MANUAL P21 I Encoding switch selection. -SEL DCS (digital code squelch) is a kind of continuous digital code Connect the pull down resistor with modulated with voice signals on carrier wave to control squelch. VSS . 83 groups of standard codes (positive and inverse code) are 7.3MHz Osc illator...
  • Page 8 PT4200 SERVICE MANUAL Table 3.5 Diode Function Description BUSY_V P61 Voice indication of circuit busy check DATA_V Voice indication data SCLK_V Voice indication clock Posi Type Function Description tion Not used MA77 Trans mitter an tenna s witch diode MA77...

  • Page 9: Chapter 4 Function Description And Parameter Setting

    PT4200 SERVICE MANUAL 4.1.2.3 Priority Channel Figure 3.8 Semiconductor Component Packaging Illustration: You can set one channel in the scanning list as the priority channel, which has the highest priority during scanning. The radio scans the first non-priority channel in the canning list and then scans the priority channel, the next non-priority channel in the scanning list, and then the priority channel again.
  • Page 10 PT4200 SERVICE MANUAL conducted for over 10 seconds, the battery power saving will be a.Turn on the computer power. activated. When it is receiving signals or in operating state, battery b.Turn on the radio power. power saving is inactive. c.Click the KSP20 program to run the programming software.

  • Page 11: Chapter 5 Service Assemble And Disassemble

    PT4200 SERVICE MANUAL radio will not exit it automatically and you have to turn on the radio 5.2 Removing and Installing the Belt Clip again to enter the user's mode. Operating steps are as follows: To remove the belt clip, use your nail or a tool to lift the metal...
  • Page 12 PT4200 SERVICE MANUAL 5.7 Exploded View 204-000558-003 AL LABLE 301-20080G-001 M2 SCREW MATERIAL NO. DECRIPTION MIC CAP 401-0201C1-006 AL LABLE 202-000558-009 MIC WASHER 204-000558-002 WATERPROOF LABLE 204-006800-006 MIC COVER 301-25060J-001 M2.5 SCREW 202-000558-001 EMERGENCY BUTTON COVER PUSH FASTENER 201-000558-008 201-000558-014...

  • Page 13: Chapter 6 Radio Debugging

    Set the TX frequency at high frequency (see Table 6.2), press the PTT button, test the PD power with the digital multimeter. The power should lower than 3.5V. Table 6.2 Radio H/I/L Frequency Low Frequency Medium Frequency High Frequency PT4200(1) 420.125MHz 445.125MHz 469.975MHz PT4200(2) 400.125MHz 425.125MHz 449.975MHz...
  • Page 14 PT4200 SERVICE MANUAL 6.3.6 DCS TX Signal Wave Shape and Frequency Item Test Test Test Adjustment Require Note Adjustment -ment Condition Equipment Point Part Under the computer test mode, select DCS wide band RF Audio Sensit CH: MF Speak modulation...

  • Page 15: Chapter 7 Major Specifications

    PT4200 SERVICE MANUAL Item Test Test Test Adjustment Require Note 4.0W @7.5V DC RF Power -ment Condition Equipment Point Part 2.5x10 Frequency Stability CTCSS CTCSS: Adjust Computer Frequenc Anten 2.5kHz Maximum Modulation ± 67Hz to 0.75kHz ± 50Hz Test Mode...

  • Page 16: Chapter 9 Kbc-58L Charger

    PT4200 SERVICE MANUAL PROBLEM SOLUTION A. The power amplifier tube Q11 is broken and indicator there is no power output and please change it with lights red a new tube. when in B. The microphone is broken, and please change it transmitti with a new one.

  • Page 17: Appendix 2 Spare List

    PT4200 SERVICE MANUAL Appendix 2 Spare List Material Serial No. Name/Specification Position Quantity 201-000558-002 PT558 volume knob / PC+ABS,black PT558 encoder knob / PC+ABS,blak 201-000558-003 201-000558-005 PT558 upper cover / PC+ABS,black 201-000558-006 PT558 latch / PC+ABS,black 202-000558-001 PT558 Earpiece-Mic jack panel cover / black silica gel(enhanced elasticity)hardness70 203-000558-001 PT558 antenna nut£¬...

  • Page 18: Appendix 4 Electrical Component List

    PT4200 SERVICE MANUAL 203-003208-009 Refer to PT3208 Knob retaining ring stainless steel 0.18THK 203-003208-002 Refer to PT3208 Positive terminal phosphorus copper gold plating 203-003208-004 Refer to PT3208 Negative terminal phosphorus copper gold plating 203-004200-001 Aluminum bracket 203-000558-004 Speaker contact spring,carbon spring steel wire 0.25 gilt 203-000558-005 Latch spring,carbon spring steel wire 0.35 nickle plating...
  • Page 19 PT4200 SERVICE MANUAL 104-MT717T-001 Chip triode / FMMT717TA Q8, Q30 104-SC1623-001 Chip triode / 2SC1623 104-SC3356-001 Chip triode / 2SC3356 104-SC4617-001 Chip triode / 2SC4617(S)(ROHM) Q6, Q9 104-SC4738-001 Chip triode / 2SC4738(GR),AF,AMPLIFIER(TOSHIBA) 104-SC4919-001 Chip triode / 2SC4919,MUTING,CIRCUIT(SANYO) 104-SC5108-001 Chip triode / 2SC5108Y(TOSHIBA)
  • Page 20 PT4200 SERVICE MANUAL 109-040473-001 Chip resistor / 0402,47K¡À 5% R17, R18, R19, R20, R21, R22, R292 109-040474-001 Chip resistor / 0402,470K¡À 5% R166, R232, R293 109-040562-001 Chip resistor / 0402,5.6K¡À 5% R63, R65, R132 109-040563-001 Chip resistor / 0402,56K¡À 5%...
  • Page 21 PT4200 SERVICE MANUAL C50, C149, C155, C159, C160, C161, C162, C279 Chip capacitor / 0402,0.01uF¡À 10%,50V,X7R 112-043103-001 C85, C101, C167, C168, C173, C176, C177, C178, C271, Chip capacitor / 0402,0.1uF,+80%--20%,16V,Y5V 112-043104-001 C286 Chip capacitor / 0402,0.1uF¡À 10%,16V,X7R C307 112-043104-002 112-043105-001 Chip capacitor / 0402,1uF¡À...
  • Page 22 PT4200 SERVICE MANUAL Chip capacitor / 0603,5P¡À 0.25P,50V ,C0G 112-0635R0-001 C116, C117, C118, C119, C122, C145 112-0636R0-001 Chip capacitor / 0603,6P¡À 0.5P,50V ,C0G C127, C128, C137, C206 112-0637R0-001 Chip capacitor / 0603,7P¡À 0.5P,50V ,C0G, C32, C47, C126 112-0638R0-001 Chip capacitor / 0603,8P¡À 0.5P,50V ,C0G...

  • Page 23: Appendix 5 Accessory List

    PT4200 SERVICE MANUAL Appendix 5 Accessory List Specification Accessory Figure Item Model Battery KB-42A 7.4V 1200mAh Li-Poly Hand Strap 8AJD-20K KME-201 Earphone KME-202 Charger KBC-58L 7-hour standard charger Adapter KTC-58C1 DC OUT 15V 400mA KA-3U064 Antenna Short Antenna...
  • Page 24 PT4200 SERVICE MANUAL Figure 1 PT4200 Top Board Position Mark Diagram...
  • Page 25 PT4200 SERVICE MANUAL Figure 2 PT4200 Bottom Board Position Mark Diagram...

  • Page 26: Figur3 Pt4200 Schematic Circuit Pane Diagram

    Figur3 PT4200 Schematic Circuit Pane Diagram...

  • Page 27: Figur4 Pt4200 Schematic Circuit Pane Diagram

    Figur4 PT4200 Schematic Circuit Pane Diagram 8 25...

  • Page 28: Figure 5 Kbc-58L Schematic Circuit Diagram

    Figure 5 KBC-58L Schematic Circuit Diagram KBC-58L Schematic Circuit Diagram 8 26...

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