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QUANTUN QP-650 Plus Service Manual

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QP-650 Plus Service Manual
Quantun Electronics， ， ， ， LLC
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Summary of Contents for QUANTUN QP-650 Plus

  • Page 1 QP-650 Plus Service Manual Quantun Electronics， ， ， ， LLC - 1 -...
  • Page 2 Revised History Date Decription Version Note 2010-3-9 Issue V0.1A - 2 -...

  • Page 3: Table Of Contents

    Content General……………………………………………………………………………3 Brief Introduction………………………………………………………………..4 Software Description…………………………………………………………..6 Circuit Description……………………………………………………………..10 CPU Pins…………………………………………………………………………15 Part List 1………………………………………………………………………..17 Adjustment Description……………………………………………………….49 Disassembly and Assembly………………………………………………..52 Exploded View………………………………………………………………..56 Part List 2……………………………………………………………………….57 PC Board View………………………………………………………………….58 Block Diagram…………………………………………………………………..62 Schematic Diagram…………………………………………………………..63 Specifications…………………………………………………………………66 - 3 -...

  • Page 4: General

    QP-650Plus Software Specification General Manual Scope This manual is intended for use by experienced technicians familiar with similar types of communication equipment. It contains all service information required for the equipment and is current as of the publication date. User Safety Information The following precautions are recommended for personnel safety: DO NOT transmit until all RF connectors are verified secure and any open connectors are properly terminated.

  • Page 5: Brief Introduction

    QP-650Plus Software Specification Brief Introduction Antenna LED indicator The light will glow red during transmission. The light will glow green during receiving. During transmission, the light flashes red when the battery voltage is low. 3. Channel selector knob Turn the channel selector knob to select from channels 1-16 (Channel 16 can be programmed by your dealer as scan function).
  • Page 6 QP-650Plus Software Specification 6. SK1 (Side Key) (programmable) Your dealer may program the SK1 (long or short press) keys with one of the following auxiliary functions respectively. 1)VOX 2)Power Level 3)monitor 4)monitor momentary 5)scan 6)squelch off 7)squelch off momentary 8)channel lock 9) battery indicator 7.
  • Page 7 QP-650Plus Software Specification Software Specification Radio Feature Description Use channel selector knob to choose from 16 channels Channel Annunciation, The feature enables radio to report the current channel number when power on or switching channel,. Channel Spacing 12.5KHz/20KHz/25KHz Narrow/Middle/wide Optional High/low Power (Dealer programmable) CTCSS/CDCSS 51+104 groups, user definable...
  • Page 8 QP-650Plus Software Specification PC Programming Mode The following parameters can be set through programming software (Refer to the figure2): Receive frequency and transmit frequency （ ） Receive signaling and transmit signaling （ ） N/M/W setting （ ） High/low power （ ）...
  • Page 9 QP-650Plus Software Specification Manual Adjust Mode (1) Enter the manual adjust mode Turn channel knob to Channel1, Turn on the power while holding down PTT and Side key simultaneously for 2 seconds, orange LED will flashing two times., release the PTT and SK1 key , then press PTT button for 2 seconds, the red led flashes and release the two keys again, the radio enters manual adjust mode.
  • Page 10 QP-650Plus Software Specification Channel NO. Adjust item TX Low Power TX High Power TX CDC Deviation TX CTC(67Hz) Deviation TX CTC(151.8Hz) Deviation TX CTC(254.1Hz) Deviation TX DTMF Deviation VOX Level 1 VOX Level 5 TX Low battery threshold RX sensitivity Squelch open level 1 Squelch open level 9 Squelch shut level 1...
  • Page 11 QP-650Plus Software Specification Defination CH. NO. Frequency Bandwidth User Wired Clone Mode (1). Turn on the power while holding down Side key for 2 seconds, green LED flash two times, the radio enters wired clone mode. (2). Press the PTT key to begin wired clone and slave radio red LED lights, when clone is completed, master radio orange led lights, and slave radio red Led goes out.

  • Page 12: Circuit Description

    QP-650 Plus Circuit Description Circuit Description 1. Power Supply Power supply of the radio is derived from the battery, which supplies battery B+ through power switch. U608 supplies 5V (5M) voltage for the control circuit. U607 supplies 3V voltage for the PLL circuit.
  • Page 13 QP-650 Plus Circuit Description PLL circuit Step frequency of PLL can be 2.5 KHz, 5.0 KHz or 6.25 KHz. A 12.8MHz reference oscillator signal is divided at U610 by a counter to generate a 2.5 KHz, 5.0 KHz or 6.25 KHz reference frequency. Output signal from VCO is buffer amplified by Q103 and divided at U610 by a frequency divider.
  • Page 14 QP-650 Plus Circuit Description Front-end RF Amplifier The signal from antenna is amplified at RF amplifier (Q500) after passing through a transmit/receive circuit and a band pass filter. Before passing the first mixer, the amplified signal is filtered through another band pass filter to remove unwanted signals.
  • Page 15 QP-650 Plus Circuit Description Fig. 4 APC System Antenna switch and LPF Output signal from RF amplifier passes through a low-pass filter network and a transmit/receive switch circuit comprised of D401 D 501 and D502 before it reaches the antenna terminal. D501 and ，...
  • Page 16 QP-650 Plus Circuit Description Fig. 5 AF and Signaling Circuit CTC/CDC Transmit: CTC/CDC signaling produced by CTC_PLL pass a low pass filter and then enters VCXO. CTC/CDC signaling produced by CTC_OUT pass a low pass filter and then mixed with AF before enters VCO.
  • Page 17 QP-650 Plus Circuit Description Fig.6 MCU Block Diagram Circuit in this section is mainly comprised of MCU, EEPROM etc. MCU control circuit accomplishes the following functions: accomplish the reset initialization according to the programmed feature of the radio when power on; detect keying signal and monitor battery voltage;...

  • Page 18: Cpu Pins

    QP-650 Plus MCU PINS CPU Pins PIN No. PIN Name Description EEPROM DATA MODE RESET Reset input XOUT Crystal oscillator output pin Crystal oscillator input pin DTMF DTMF output APC/TV Power control/ receiver tuning out PLLCLK PLL clock output PLLEN...
  • Page 19 QP-650 Plus MCU PINS PIN No. PIN Name Description Red light control l it o ut ： ， ； ， LEDR Green light control ： ， l it ； ， o ut LEDG PTT key IN Side Key1 EXT_DEV EXT_DEV detect...

  • Page 20: Part List 1

    QP-650 Plus MCU PINS Part list 1 Description Description Description Description Refer. NO. Refer. NO. Refer. NO. Refer. NO. Qty. Qty. Qty. Qty. Note Note Note Note 1 5 0 1 0 6 1 0 4 0 C a p a c i t o r 0 6 0 3 0 . 1 U F K 5 0 V C 1 0 0 1 7 0 1 0 8 4 7 5 0 T A N - C a p a c i t o r 0 8 0 5 4 .
  • Page 21 QP-650 Plus Part list1 Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note 1 5 0 1 0 4 0 6 0 0 C a p a c i t o r 0 4 0 2 6 P F B 5 0 V C 1 2 4 1 5 0 1 0 6 0 5 9 0 C a p a c i t o r 0 6 0 3 0 .
  • Page 22 QP-650 Plus Part list1 NO..Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note 1 5 0 1 0 4 4 7 1 0 C a p a c i t o r 0 4 0 2 4 7 0 P F J 5 0 V C 2 0 1 1 5 0 1 0 4 4 7 4 0 C a p a c i t o r 0 4 0 2 0 .
  • Page 23 QP-650 Plus Part list1 Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note 1 5 0 1 0 4 4 7 3 0 C a p a c i t o r 0 4 0 2 0 . 0 4 7 U F K 2 5 V C 2 2 5 1 5 0 1 0 4 1 0 5 0 C a p a c i t o r 0 4 0 2 1 U F K 6 .
  • Page 24 QP-650 Plus Part list1 Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note 1 5 0 1 0 4 5 6 2 0 C a p a c i t o r 0 4 0 2 5 6 0 0 P F K 2 5 V...
  • Page 25 QP-650 Plus Part list1 Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note 1 5 0 1 0 4 1 0 2 0 C a p a c i t o r 0 4 0 2 1 0 0 0 P F K 5 0 V...
  • Page 26 QP-650 Plus Part list1 Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note 1 1 4 1 5 0 1 0 4 1 0 5 0 C a p a c i t o r 0 4 0 2 1 U F K 6 . 3 V...
  • Page 27 QP-650 Plus Part list1 Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note 1 3 3 1 5 0 1 0 4 1 0 4 0 C a p a c i t o r 0 4 0 2 0 . 1 U F K 1 6 V...
  • Page 28 QP-650 Plus Part list1 Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note 1 5 2 1 5 0 1 0 4 1 0 2 0 C a p a c i t o r 0 4 0 2 1 0 0 0 P F K 5 0 V...
  • Page 29 QP-650 Plus Part list1 Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note 1 7 1 1 5 0 1 0 4 4 7 1 0 C a p a c i t o r 0 4 0 2 4 7 0 P F J 5 0 V...
  • Page 30 QP-650 Plus Part list1 Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note 1 9 0 1 5 0 1 0 4 1 8 0 0 C a p a c i t o r 0 4 0 2 1 8 P F J 5 0 V...
  • Page 31 QP-650 Plus Part list1 Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note 2 0 9 1 5 0 1 0 4 1 8 1 0 C a p a c i t o r 0 4 0 2 1 8 0 P F J 5 0 V...
  • Page 32 QP-650 Plus Part list1 Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note 2 2 8 1 5 0 1 0 4 1 0 3 0 C a p a c i t o r 0 4 0 2 0 . 0 1 U F K 2 5 V...
  • Page 33 QP-650 Plus Part list1 Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note 2 4 7 1 5 0 1 0 4 1 0 2 0 C a p a c i t o r 0 4 0 2 1 0 0 0 P F K 5 0 V...
  • Page 34 QP-650 Plus Part list1 Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note 2 6 6 1 5 0 1 0 4 1 0 3 0 C a p a c i t o r 0 4 0 2 0 . 0 1 U F K 2 5 V...
  • Page 35 QP-650 Plus Part list1 Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note 2 8 5 D 2 0 1 0 5 0 0 2 0 V a r a c t o r H V C 3 5 0 B T R F - E...
  • Page 36 QP-650 Plus Part list1 Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note Description Description Refer. NO. Refer. NO. Qty. Qty. Note Note 3 0 4 2 0 0 1 0 6 3 3 5 0 I n d u c t o r 0 6 0 3 3 . 3 u H...
  • Page 37 QP-650 Plus Part list1 Description Description Description Description Refer. NO. Refer. NO. Refer. NO. Refer. NO. Qty. Qty. Qty. Qty. Note Note Note Note 3 2 3 2 2 0 1 0 4 2 2 1 0 F e r r i t e 0 4 0 2 2 2 0 Ω...
  • Page 38 QP-650 Plus Part list1 Description Description Description Description Refer. NO. Refer. NO. Refer. NO. Refer. NO. Qty. Qty. Qty. Qty. Note Note Note Note 3 4 2 2 3 0 1 3 2 0 0 5 0 C o i l E 2 - 0 . 3 0 * 1 . 2 * 5 T L...
  • Page 39 QP-650 Plus Part list1 Description Description Description Description Refer. NO. Refer. NO. Refer. NO. Refer. NO. Qty. Qty. Qty. Qty. Note Note Note Note 3 6 1 T 1 0 1 1 3 0 0 1 0 U F M M T 7 1 7 P N P...
  • Page 40 QP-650 Plus Part list1 Description Description Description Description Refer. NO. Refer. NO. Refer. NO. Refer. NO. Qty. Qty. Qty. Qty. Note Note Note Note 3 8 0 1 1 0 1 0 4 2 7 1 0 R e s i s t o r 0 4 0 2 2 7 0 Ω J 1 / 1 6 W...
  • Page 41 QP-650 Plus Part list1 Description Description Description Description Refer. NO. Refer. NO. Refer. NO. Refer. NO. Qty. Qty. Qty. Qty. Note Note Note Note 3 9 9 1 1 0 1 0 4 3 3 1 0 R e s i s t o r 0 4 0 2 3 3 0 Ω J 1 / 1 6 W...
  • Page 42 QP-650 Plus Part list1 Description Description Description Description Refer. NO. Refer. NO. Refer. NO. Refer. NO. Qty. Qty. Qty. Qty. Note Note Note Note 4 1 8 1 1 0 1 0 4 3 9 4 0 R e s i s t o r 0 4 0 2 3 9 0 K Ω J 1 / 1 6 W...
  • Page 43 QP-650 Plus Part list1 Description Description Description Description Refer. NO. Refer. NO. Refer. NO. Refer. NO. Qty. Qty. Qty. Qty. Note Note Note Note 4 3 7 1 1 0 1 0 4 1 0 2 0 R e s i s t o r 0 4 0 2 1 K Ω J 1 / 1 6 W...
  • Page 44 QP-650 Plus Part list1 Description Description Description Description Refer. NO. Refer. NO. Refer. NO. Refer. NO. Qty. Qty. Qty. Qty. Note Note Note Note 4 5 6 1 1 0 1 0 4 4 7 3 0 R e s i s t o r 0 4 0 2 4 7 K Ω J 1 / 1 6 W...
  • Page 45 QP-650 Plus Part list1 Description Description Description Description Refer. NO. Refer. NO. Refer. NO. Refer. NO. Qty. Qty. Qty. Qty. Note Note Note Note 4 7 5 1 1 0 1 0 4 1 0 3 0 R e s i s t o r 0 4 0 2 1 0 K Ω J 1 / 1 6 W...
  • Page 46 QP-650 Plus Part list1 Description Description Description Description Refer. NO. Refer. NO. Refer. NO. Refer. NO. Qty. Qty. Qty. Qty. Note Note Note Note 4 9 4 1 1 0 1 0 6 2 7 1 0 R e s i s t o r 0 6 0 3 2 7 0 Ω J 1 / 1 0 W...
  • Page 47 QP-650 Plus Part list1 Description Description Description Description Refer. NO. Refer. NO. Refer. NO. Refer. NO. Qty. Qty. Qty. Qty. Note Note Note Note 5 1 3 1 1 0 1 0 4 1 0 4 0 R e s i s t o r 0 4 0 2 1 0 0 K Ω J 1 / 1 6 W...
  • Page 48 QP-650 Plus Part list1 Description Description Description Description Refer. NO. Refer. NO. Refer. NO. Refer. NO. Qty. Qty. Qty. Qty. Note Note Note Note 5 3 2 1 1 0 1 0 4 1 0 3 0 R e s i s t o r 0 4 0 2 1 0 K Ω J 1 / 1 6 W...
  • Page 49 QP-650 Plus Part list1 Description Description Description Description Refer. NO. Refer. NO. Refer. NO. Refer. NO. Qty. Qty. Qty. Qty. Note Note Note Note 5 5 1 1 1 0 1 0 6 1 0 5 0 R e s i s t o r 0 6 0 3 1 M Ω J 1 / 1 6 W...
  • Page 50 QP-650 Plus Part list1 Description Description Description Description Refer. NO. Refer. NO. Refer. NO. Refer. NO. Qty. Qty. Qty. Qty. Note Note Note Note 5 7 0 1 1 0 1 0 4 4 7 3 0 R e s i s t o r 0 4 0 2 4 7 K Ω J 1 / 1 6 W...
  • Page 51 QP-650 Plus Part list1 Description Description Description Description Refer. NO. Refer. NO. Refer. NO. Refer. NO. Qty. Qty. Qty. Qty. Note Note Note Note 5 8 9 C F 2 1 9 9 0 0 2 0 C e r a m i c F i l t e r 4 5 0 K H z ± 4 K H...

  • Page 52: Adjustment Description

    QP-650 Plus Part list1 Adjustment Description The radio can be adjusted by manual adjustment. Manual adjustment procedure is as follow. (Refer to “All reset mode” and “manual adjust mode” in the section Software Specification.) Instrument: Radio Communication Test Set 1 set...
  • Page 53 QP-650 Plus Adjustment Description TX section Item Condition Test Method Purpose Instrument 1. Transmit Turn to CH5; TX Test Adjust VR200 Frequency Error frequency 1 00Hz ≤ 2. CDCSS balance Turn to CH5. TX TEST PTT key standard waveform Adjust at 1 point (wideband), SFK2 key ：...
  • Page 54 QP-650 Plus Adjustment Description 6.CTCSS Turn to CH7. PTT key (254.1Hz) Adjust at 3 point (wideband), SK1 key deviation High 1 point (medium band) 1 point (narrowband). 7. DTMF Turn to CH8. TX Test PTT key 3.2KHz (25KHz) deviation Adjust at 1 point (wideband),...

  • Page 55: Disassembly And Assembly

    QP-650 Plus Disassembly and Assembly Disassembly and Assembly Remove the Battery Turn the radio off. Slide the battery latches upwards. Pull the top part of the battery away from the radio’s body and lift the battery from the radio. Figure 1 Disassemble main unit (aluminum chassis and PCB) 1.
  • Page 56 QP-650 Plus Disassembly and Assembly Figure 3 The disassembly is shown as the figure 4. Figure 4 Disassemble PTT button Push the PTT button in indicated direction until out of the cover. (See figure 5) Figure 5 - 56 -...
  • Page 57 QP-650 Plus Disassembly and Assembly Assemble PTT button Paste double-coated tape to the cover. And then press the PTT button into the corresponding opening in the cover. (See figure 6) Figure 6 Attach the battery 1. Fit the extensions at the bottom of the battery into the slots on the radio chassis.

  • Page 58: Exploded View

    QP-650 Plus Exploded View Exploded View - 58 -...

  • Page 59: Part List 2

    QP-650 Plus Part List 2 Part List 2 Material Name Specification P/N. 650 Unit Waterproof ring 5100300000 1.00 5002200000 650 Power Jack 1.00 650 Positive Pole 5201500000 1.00 6500100000 PC part 1.00 6102010000 screw 2.00 650 Aluminum chassis 5300100000 1.00...

  • Page 60: Pc Board View

    QP-650 Plus PC Board View PC Board View QP-650U Plus PCB Top Layer View (1) - 60 -...
  • Page 61 QP-650 Plus PC Board View QP-650 Plus PCB Top Layer View (2) - 61 -...
  • Page 62 QP-650 Plus PC Board View QP-650 Plus PCB Bottom Layer View (1) - 62 -...
  • Page 63 QP-650 Plus PC Board View QP-650 Plus PCB Bottom Layer View (2) - 63 -...

  • Page 64: Block Diagram

    QP-650 Plus Block Diagram Block Diagram - 64 -...

  • Page 65: Schematic Diagram

    QP-650 Plus Schematic Diagram Schematic Diagram RF Section - 65 -...
  • Page 66 QP-650 Plus Schematic Diagram AF Section - 66 -...
  • Page 67 QP-650 Plus Schematic Diagram MCU Section - 67 -...

  • Page 68: Specifications

    QP-650 Plus Specifications Specifications General Frequency Range UHF: 400-470MHz Channel Capacity Channel Spacing 25/20/12.5KHz Operating Voltage 7.4V Battery 1400mAh(Li-ion) Frequency Stability ±2.5ppm Operating Temperature ℃ ~ +50 ℃ Antenna Impedance Transmitter RF Power Output 5W/1W Modulation 16KΦF3E/8KΦF3E Spurious and Harmonics ≤...
  • Page 69 © 2009 Quantun Electronics, LLC. All Rights Reserved 1379 Shotgun Road, Sunrise, Florida 33326 V0.1A 7136501001 - 69 -...

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