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BENISON V5

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ADJUSTMENT PROCEDURES

Note:

It is assumed that the unit is supplied with a regulated 8.4 volts during the adjustment procedure. Do not

use a metal screw driver to adjust the ferrite cores as it causes variations in the inductance whilst

adjustments are being performed. Use of the wrong size trimming tools can cause damage to the cores. A

plastic or ceramic trimming tool is recommended.

ADJUSTMENT

1) Required Test Equipment

The following items are required to adjust radio parameters:

1. Regulated power supply

Supply voltage: 5~14V DC

Current: 3A or more

2. Digital multimeter

Voltage range: FS = Approx. 20V

Current: 10A or more

Input resistance: High impedance

3. Oscilloscope

Measurable frequency: Audio frequency

4. Audio dummy load

Impedance: 8 ohm

Dissipation: 1W or more

Jack: 3.5mm

5. SSG

Output frequency: 200MHz or more

Output level: -20dBu/0.1uV ~120dBu/1V

Modulation: FM

6. Spectrum Analyzer

Measuring range: Up to 2GHz or more

7. Power meter

Measurable frequency: Up to 200MHz

Impedance: 50, unbalanced

Measuring range: 0.1W ~10W

8. Audio volmeter

Measurable frequency: Up to 100kHz

Sensitivity: 1mV to 10V

9. Audio generator

Output frequency: 67Hz to 10kHz

Output impedance: 600, unbalanced

10.Distortion meter/SINAD meter

Measurable frequency: 1kHz

Input level: Up to 40dB

Distortion: 1% ~100%

Содержание V5

Страница 1: ...BENISON V5 BENISON V5 VHF FM TRANSCEIVERS Service Manual 1 ...

Страница 2: ...k Modulation system Variable reactance frequency modulation Maximum frequency deviation 2 5 kHz Spurious emissions 70 dB typical Adjacent channel power 60 dB typical Transmitter audio distortion Less than 3 at 1 kHz 40 deviation RECEIVER Receive system Double conversion superheterodyne system Intermediate frequencies 1st 21 700 MHz 2nd 450 kHz Sensitivity 0 18 μV at 12 dB SINAD typical Squelch sen...

Страница 3: ...5 4000 53 245 6500 73 245 9000 14 245 1625 34 245 4125 54 245 6625 74 245 9125 15 245 1750 35 245 4250 55 245 6750 75 245 9250 16 245 1875 36 245 4375 56 245 6875 76 245 9375 17 245 2000 37 245 4500 57 245 7000 77 245 9500 18 245 2125 38 245 4625 58 245 7125 78 245 9625 19 245 2250 39 245 4750 59 245 7250 79 245 9750 20 245 2375 40 245 4875 60 245 7375 80 245 9875 50 CTCSS TONES SQ Hz NO TONE NO T...

Страница 4: ... SQL Push and hold to force the squelch open and set the transceiver to the squelch level adjustable condition 5 UP DOWN KEYS Selects the operating frequency UP DN 6 KEY PAD Used to enter operating frequency the DTMF codes etc 7 ANTENNA CONNECTOR Connects the supplied antenna 8 SP MIC JACK Connect an optional speaker microphone or headset if desired The internal microphone and speaker will not fun...

Страница 5: ...resulting signal is sent back to the IC14 through pins 5 The second IF signal input via pin 5 is demodulated by the internal limiter amplifier and quadrature detection circuit in IC14 and output as an audio signal through pin 9 4 Audio Circuit AF signals from the FM IF IC IC14 pin 9 are applied to the mute switch IC4 pin 1 via the AF filter circuit IC14b pins 6 7 The output signals from pin 11 are...

Страница 6: ... IC13 Each programmable divider in IC13 divides the frequency of the input signal by N according to the frequency data to generate a comparison frequency of 12 5kHz 2 PLL Loop Filter Circuit If a phase difference is found in the phase comparison between the reference frequency and VCO output frequency the charge pump output pin 8 of IC11 generates a pulse signal which is converted to DC voltage by...

Страница 7: ... 9 of the CPU to the varicap D7 of the VCO for modulation 5 CTCSS Decoder The voice band of the AF output signal from pin 10 of IC5 is cut by sharp active filter IC2 VCVS and amplified then led to pin 4 of CPU The input signal is compared with the programmed tone frequency code in the CPU The squelch will open when they match 6 Clock Shift In the unlikely event that CPU clock noise is present on a...

Страница 8: ...4V DC Current 3A or more 2 Digital multimeter Voltage range FS Approx 20V Current 10A or more Input resistance High impedance 3 Oscilloscope Measurable frequency Audio frequency 4 Audio dummy load Impedance 8 ohm Dissipation 1W or more Jack 3 5mm 5 SSG Output frequency 200MHz or more Output level 20dBu 0 1uV 120dBu 1V Modulation FM 6 Spectrum Analyzer Measuring range Up to 2GHz or more 7 Power met...

Страница 9: ...MHz listed in the table below To enter the adjustment mode At same time push 8 and Rotate VOL to the power ON Adjustment mode KEY Channel function Display 1 T1 RX sensitivity adjustment TV1 2 T2 RX sensitivity adjustment TV2 3 T3 RX sensitivity adjustment TV3 4 Reference frequency adjustment FQA 5 Deviation TAF 6 No care TDT 7 High power adjustment THP 8 Low power adjustment TLP 9 No care RES ADJ ...

Страница 10: ... key to return Sensitivity Adjustment 1 In the adjustment mode Press the 1 2 3 key 2 Press the UP or DOWN key Set the minimum frequency sensitivity 3 Press the SQL key to return Deviation 1 In the adjustment mode Press the 5 key 2 Input a 30mVrms 1000Hz signal with your transceiver tester through the external microphone jack 3 With the tester put the transceiver in the transmission mode 4 Press th...

Страница 11: ...1μ C47 470P C48 470P C49 0 018 C50 0 001 C51 0 0082 C52 0 01 C53 0 01 C54 0 1 C55 100P C56 0 22 C57 100P C58 100P C59 100P C60 0 1 C61 100P C62 0 1 C63 100P C64 100P C65 100P C66 100P C67 100P C68 470P C69 180p C70 0 01 C71 0 033 C72 0 0056 C73 470P C74 0 1 C75 47P C76 470P C77 22P C78 22P C79 0 022 C80 0 1 C81 0 1 C85 0 01 C86 0 001 C87 470P C88 0 047 C89 0 1 C90 0 1 C91 0 1 C92 47P C93 0 1 C94 4...

Страница 12: ...P C174 47P C175 470P C176 470P C177 0 001 C178 470P C179 470P C180 47P C181 47P C182 10P C183 10P C184 470P C185 47P C186 12P C187 10P C188 470P C189 470P C190 470P C191 470P C192 10P C193 10P C194 10P C195 470P C196 470P C197 5P C198 0 5P C199 0 001 C200 7P C202 5P C203 5P C204 4P C205 10P C206 5P C207 470P C208 470P C209 0 01 C210 10P C211 10P C212 470P C213 470P C214 470P C215 470P C216 0 001 C...

Страница 13: ... C290 470P C291 470P C292 470P C293 470P C294 470P C295 470P C296 470P C297 470P C298 470P C299 470P C300 470P C301 470P C302 470P C303 100P C304 100P C305 470P C306 100P C307 470P C308 100P C309 470P C310 10μ C311 470P C311 470P C312 470P C313 470P C314 470P C315 470P C316 470P C317 10μ C319 470P C320 470P C321 470P D1 RB706 F40 D2 RB717F D3 MA77 D4 MA77 D5 MA77 D6 MA77 D7 MA77 D8 MA77 D9 MA77 D1...

Страница 14: ... K21 A L1 GB1608E102 L2 82nH L6 L 6T L7 47nH L8 0 47μH L9 27nH L10 68nH L11 27nH L12 27nH L13 32nH L14 32nH L15 68nH L16 68nH L17 PB3216 301 L18 6 8nH L19 47nH L20 5 6nH L21 15nH L22 68nH L23 12nH L24 22nH L25 56nH L26 2 7μH L27 32nH L28 22nH L29 32nH L30 GB1608E102 LCD1 V5 LCD MC1 MIC 58dB Q1 2SA1577 Q2 2SA1577 Q3 2SA1577 Q4 2SA1577 Q5 2SB1132 Q6 DTC143ZU Q7 DTC144EU Q8 DTC144EU Q9 DTC144EU Q10 D...

Страница 15: ... R49 1 5k R50 10k R51 1k R52 270k R53 1k R54 10k R55 1k R56 1k R57 10k R58 100k R59 1k R60 1k R61 220k R62 10k R63 82k R64 120k R65 47k R66 33k R67 1 5k R68 12k R69 3 9k R70 10k R71 10k R72 1k R73 10k R74 1M R75 10k R76 100k R77 1k R78 1k R79 330 R80 100k R81 100 R82 100k R83 100 R84 100 R85 100 R86 12k R87 12k R88 12k R89 10k R90 100k R91 100k R93 2 7k R94 33 R95 10k R96 3 3k R97 10 R100 20k R102...

Страница 16: ...k R162 470 R163 10k R164 100k R165 100k R166 100k R167 100k R168 100k R169 100k R170 100k R171 100k R172 100k R173 3 9k R174 330k R175 10k R176 330k R177 180k R178 2 2k R179 100 R180 100 R181 100 R182 470 R183 4 7k R184 68k R185 68k R186 100 R187 4 7k R188 100 R189 33 R190 100 R191 4 7k R192 3 3k R193 39k R194 22 R195 0 R196 1k R197 10k R198 1 2k R199 68 R200 150 R201 2 2k R202 2 2k R203 6 8k R204...

Страница 17: ...BENISON V5 17 MEMO ...

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