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VX-450 Series UHF Band Service Manual

Block Diagram (Version I & K, 16 key & 4 key Type)

AF Section

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Summary of Contents for VX-450 series

Page 1: ...ignment Mode menu While we believe the information in this manual to be correct VERTEX STANDARD assumes no liability for damage that may occur as a result of typographical or other errors that may be...

Page 2: ...4 3 x 2 3 x 1 5 inches 109 x 58 5 x 37 mm VX 454 459 with FNB V133LI UNI 4 3 x 2 3 x 1 8 inches 109 x 58 5 x 45 mm VX 454 459 with FNB V134LI UNI Weight Approx 10 4 oz 296 g VX 451 with FNB V112LI Ant...

Page 3: ...ox 296 g VX 451 with FNB V112LI Antenna Belt Clip 340 g VX 451 with FNB V113LI Antenna Belt Clip 322 g VX 454 459 with FNB V112LI Antenna Belt Clip 366 g VX 454 459 with FNB V113LI Antenna Belt Clip 2...

Page 4: ...able only as part of a desig nated assembly SP Connector Mating Operation 1 Insert the cable side first 2 Press down at the lever side NOTE Horizontal mating could damage the connector SP Connector Un...

Page 5: ...nsert the cable side first 2 Press down at the lever side NOTE Horizontal mating could damage the connector SP Connector Unmating Operation 1 Hook the lever 2 Pull up friction lock is released 3 Posit...

Page 6: ...RSION K 16 KEY 4 KEY CP9819008 VERSION D NON KEY CP9819009 VERSION A NON KEY CP9819010 VERSION I NON KEY CP9819011 VERSION K NON KEY MIC SP CAP ASSY CB6642000 KNOB VOL RA125100B 1 KNOB FREQ RA125110B...

Page 7: ...XTAL FILTER MFT67P 67 650MHZ H1102471 1 B d3 MAIN 2 UNIT VERSION I K CD3001 CERAMIC DISC ECDA450C24 H7901460 1 B c3 CF3001 CERAMIC FILTER LTWC450F H3900563 1 B a3 CF3002 CERAMIC FILTER LTWC450H H39005...

Page 8: ...8 VX 450 Series UHF Band Service Manual Block Diagram Version A D 16 key 4 key Type RF Section...

Page 9: ...9 VX 450 Series UHF Band Service Manual Block Diagram Version A D 16 key 4 key Type Frequency Generation Reguration Section...

Page 10: ...10 VX 450 Series UHF Band Service Manual Block Diagram Version A D 16 key 4 key Type AF Section...

Page 11: ...11 VX 450 Series UHF Band Service Manual Block Diagram Version A D 16 key 4 key Type Controller Section...

Page 12: ...12 VX 450 Series UHF Band Service Manual Block Diagram Version A D Non key Type RF Section...

Page 13: ...13 VX 450 Series UHF Band Service Manual Block Diagram Version A D Non key Type Frequency Generation Reguration Section...

Page 14: ...14 VX 450 Series UHF Band Service Manual Block Diagram Version A D Non key Type AF Section...

Page 15: ...15 VX 450 Series UHF Band Service Manual Block Diagram Version A D Non key Type Controller Section...

Page 16: ...16 VX 450 Series UHF Band Service Manual Block Diagram Version I K 16 key 4 key Type RF Section...

Page 17: ...17 VX 450 Series UHF Band Service Manual Block Diagram Version I K 16 key 4 key Type Frequency Generation Reguration Section...

Page 18: ...18 VX 450 Series UHF Band Service Manual Block Diagram Version I K 16 key 4 key Type AF Section...

Page 19: ...19 VX 450 Series UHF Band Service Manual Block Diagram Version I K 16 key 4 key Type Controller Section...

Page 20: ...20 VX 450 Series UHF Band Service Manual Block Diagram Version I K Non key Type RF Section...

Page 21: ...21 VX 450 Series UHF Band Service Manual Block Diagram Version I K Non key Type Frequency Generation Reguration Section...

Page 22: ...22 VX 450 Series UHF Band Service Manual Block Diagram Version I K Non key Type AF Section...

Page 23: ...23 VX 450 Series UHF Band Service Manual Block Diagram Version I K Non key Type Controller Section...

Page 24: ...s the second mixer second local oscillator limiter ampli fier noise amplifier and RSSI amplifier The signal from reference oscillator X1001 becomes 4 times of frequencies in Q1033 it is mixed with the...

Page 25: ...y as the output of reference divider These two signals are compared by phase detector the phase difference pulse is gen erated Circuit Description Version A D 2 5 2 Carrier Squelch The CPU 14 pin A D...

Page 26: ...ocked by the control of this DC voltage The PLL serial data from CPU is sent with three lines of SDO 40 pin SCK 36 pin and PSTB 30 pin The lock condition of PLL is output from the UL 18 pin terminal a...

Page 27: ...cond mixer second local oscillator limiter ampli fier noise amplifier and RSSI amplifier Circuit Description Version I K The signal from reference oscillator X3001 becomes 4 times of frequencies in Q3...

Page 28: ...detector Q3040 1 NJM12904V detects the current of Q3006 and Q3008 and converts the current difference to the voltage difference The output from the current detector Q3040 1 is com pared with the refer...

Page 29: ...tector the phase difference pulse is gen erated The phase difference pulse and the pulse from through the charge pumps and LPF It becomes the DC voltage to control the VCO The oscillation frequency of...

Page 30: ...ard reserves the right to change circuits and alignment procedures in the interest of improved performance without notifying owners Under no circumstances should any alignment be attempted unless the...

Page 31: ...ignments should be made with oscillator shields and circuit boards firmly affixed in place Also the test equipment must be thoroughly warmed up before beginning Note Signal levels in dB referred to in...

Page 32: ...ch SQL RSSI 5 TX Power High Low3 Low2 Low1 6 Maximum Deviation Wide Narrow Please adjust the following items when needed Modulation Balance Wide Narrow CTCSS Deviation Wide Narrow DCS Deviation Wide N...

Page 33: ...n ment The Frequency Alignment window will appear 2 Click the PTT button or press the SPACE bar and the radio will start to transmit on the center frequency channel 3 Set the value to get the desired...

Page 34: ...Up Down arrow key to switch to the se lected channel 3 Set the Signal Generator according to the indica tion at the top of the screen Setting Your SG as followings 4 Drag the slide bar click the up do...

Page 35: ...e Alignment for the level 15 of the RSSI SQL level at Wide 5k 4k or Narrow 2 5k TX Save RSSI Level TX SAVE W N The Alignment for the TX Save RSSI level at Wide 5k 4k or Narrow 2 5k The procedure for a...

Page 36: ...ransmit on the selected channel 4 Set the value to get desired output power High 5 W Low3 2 5 W Low2 1 W Low1 250 mW on the Power Meter by dragging the slide bar click ing the up down button pressing...

Page 37: ...e de sired channel 5 Click the PTT button or press the SPACE bar the radio starts to transmit on the selected chan nel 6 Set the value to get desired deviation Wide 4 2kHz Narrow 2 1kHz on the deviati...

Page 38: ...bar or press the Up Down arrow key to select the de sired channel 5 Click the PTT button or press the SPACE bar the radio starts to transmit on the selected chan nel 6 Set the value to get the best s...

Page 39: ...the selected channel 4 Set the value to get desired deviation on the de viation meter by dragging the slide bar clicking the up down button pressing the left or right ar row key or entering the value...

Page 40: ...n the selected channel 4 Set the value to get desired deviation Wide 0 6 kHz Narrow 0 3 kHz on the deviation meter by dragging the slide bar clicking the up down button pressing the left or right arro...

Page 41: ...op trans mitting 5 Click the OK button to finish the DTMF Devia tion alignment and save the data SEQUENTIAL TONE DEVIATION This parameter is to align Sequential Tone Deviation 1 Press the Seq Tone but...

Page 42: ...ment value in the New box Default 80 Input Range 0 Level Down 255 Level Up 3 Click the OK button the data will be saved and the alignment is complete TX MSK LEVEL This parameter is to align the modula...

Page 43: ...ck the OK button the data will be saved and the alignment is complete 4 Set the value of the DC Power source to 7 5V ac cording to the indication LTR DEVIATION This parameter is to align the LTR Devia...

Page 44: ...44 VX 450 Series UHF Band Service Manual MAIN Unit Circuit Diagram Version A D 16 key 4 key Type Lot 1 4...

Page 45: ...45 VX 450 Series UHF Band Service Manual MAIN Unit Parts Layout Version A D 16 key 4 key Type Lot 1 4 Side A 1 3 2 4 A B C D E F G...

Page 46: ...46 VX 450 Series UHF Band Service Manual MAIN Unit Parts Layout Version A D 16 key 4 key Type Lot 1 4 Side B a b c d e f g 1 3 2 4...

Page 47: ...47 VX 450 Series UHF Band Service Manual MAIN Unit Circuit Diagram Version A D 16 key 4 key Type Lot 5 6...

Page 48: ...48 VX 450 Series UHF Band Service Manual MAIN Unit Parts Layout Version A D 16 key 4 key Type Lot 5 6 Side A 1 3 2 4 A B C D E F G...

Page 49: ...49 VX 450 Series UHF Band Service Manual MAIN Unit Parts Layout Version A D 16 key 4 key Type Lot 5 6 Side B a b c d e f g 1 3 2 4...

Page 50: ...50 VX 450 Series UHF Band Service Manual MAIN Unit Circuit Diagram Version A D 16 key 4 key Type Lot 7...

Page 51: ...51 VX 450 Series UHF Band Service Manual MAIN Unit Parts Layout Version A D 16 key 4 key Type Lot 7 Side A 1 3 2 4 A B C D E F G...

Page 52: ...52 VX 450 Series UHF Band Service Manual MAIN Unit Parts Layout Version A D 16 key 4 key Type Lot 7 Side B a b c d e f g 1 3 2 4...

Page 53: ...53 VX 450 Series UHF Band Service Manual MAIN Unit Circuit Diagram Version A D Non key Type Lot 1 7...

Page 54: ...54 VX 450 Series UHF Band Service Manual MAIN Unit Parts Layout Version A D Non key Type Lot 1 7 Side A 1 3 2 4 A B C D E F G...

Page 55: ...55 VX 450 Series UHF Band Service Manual MAIN Unit Parts Layout Version A D Non key Type Lot 1 7 Side B a b c d e f g 1 3 2 4...

Page 56: ...56 VX 450 Series UHF Band Service Manual MAIN Unit Circuit Diagram Version A D Non key Type Lot 8...

Page 57: ...57 VX 450 Series UHF Band Service Manual MAIN Unit Parts Layout Version A D Non key Type Lot 8 Side A 1 3 2 4 A B C D E F G...

Page 58: ...58 VX 450 Series UHF Band Service Manual MAIN Unit Parts Layout Version A D Non key Type Lot 8 Side B a b c d e f g 1 3 2 4...

Page 59: ...59 VX 450 Series UHF Band I Band Service Manual MAIN 2 Unit Circuit Diagram Version I K 16 key 4 key Type...

Page 60: ...60 VX 450 Series UHF Band I Band Service Manual MAIN 2 Unit Parts Layout Version I K 16 key 4 key Type Side A A B C D E F G 1 3 2 4...

Page 61: ...61 VX 450 Series UHF Band I Band Service Manual a b MAIN 2 Unit Parts Layout Version I K 16 key 4 key Type Side B c d e f g 1 3 2 4...

Page 62: ...62 VX 450 Series UHF Band I Band Service Manual MAIN 2 Unit Circuit Diagram Version I K Non key Type...

Page 63: ...63 VX 450 Series UHF Band I Band Service Manual MAIN 2 Unit Parts Layout Version I K Non key Type Side A A B C D E F G 1 3 2 4...

Page 64: ...64 VX 450 Series UHF Band I Band Service Manual a b Side B c d e f g 1 3 2 4 MAIN 2 Unit Parts Layout Version I K Non key Type...

Page 65: ...65 VX 450 Series UHF Band Service Manual DISPLAY Unit Circuit Diagram 16 key 4 key Type Lot 1 4...

Page 66: ...66 VX 450 Series UHF Band Service Manual DISPLAY Unit Parts Layout 16 key 4 key Type Lot 1 4 Side A A B C D E 1 3 2 4...

Page 67: ...67 VX 450 Series UHF Band Service Manual DISPLAY Unit Parts Layout 16 key 4 key Type Lot 1 4 Side B a b c d e 1 3 2 4...

Page 68: ...68 VX 450 Series UHF Band Service Manual DISPLAY Unit Circuit Diagram 16 key 4 key Type Lot 5 Circuit Diagram...

Page 69: ...69 VX 450 Series UHF Band Service Manual DISPLAY Unit Parts Layout 16 key 4 key Type Lot 5 Side A A B C D E 1 3 2 4...

Page 70: ...70 VX 450 Series UHF Band Service Manual DISPLAY Unit Parts Layout 16 key 4 key Type Lot 5 Side B a b c d e 1 3 2 4...

Page 71: ...this manual may be reproduced without the permission of Vertex Standard LMR Inc Vertex Standard is a trademark of Vertex Standard LMR Inc All other trademarks are the property of their respective own...

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