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Elcon EL-31, Конструкция, эксплуатация и функциональное описание, Страница: 5 / 29

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EL-31_V2.1b_en.docx 

April 7, 2019, © 

Elcon

, Switzerland 

Page 5 / 29 

Note: all polarized components (diodes, transistors, capacitors, ICs, relays, etc.) must 
have the correct mounting orientation. 

2.1  Parts lists 

EL-31 board 

piece 

components No. 

Description 

1 

R2  (not installed) 

22Ω 1/8 W (red-red-black)  

[Component 1]

 

2 

R8, R13 

100

Ω 1/8 W (brown- black - brown)  

[Component 1]

 

3 

R6, R9, R10 

10kΩ 1/8 W (brown -black-orange)  

[Component 1]

 

1 

R12 

33k

Ω 1/8 W (orange-orange-orange

)  [Component 1]

 

2 

R5, R7 

47kΩ 1/8 W (yellow-violet-orange)  

[Component 1]

 

2 

R1, R11 

100kΩ 1/8 W (brown-black-yellow)  

[Component 1]

 

1 

C7 

6.5-30pF Trimmer (green)  

[Component 2]

 

1 

C6 

22pF ceramic, designated 150  [

Component 16

] 

7 

C1, C2, C3, C4, C5, C8, C11 

0.1uF ceramic designated 104  

[Component 3]

 

1 

C10 

1uF/50V electrolyte  [

Component 14]

  

2 

C9, C12 

47uF/16V electrolyte  

[Component 14]

 

1 

X1 

8MHz Crystal HC-49U  

[Component 4

] 

6 

U1, U2, U3, U4, U5, U6 

LSHD-A103,  7 Segment LED  

[Component 11]

 

1 

U7 

MAX7221CNG or AS1106PL  

[Component 8]

 

1 

U8 

PIC18F2550 I/SP programmed  

[Component 7]

 

1 

U9 

SN7400N Quad NAND  

[Component 6]

 

1 

U10 

TSOP4838 IR-Rx  

[Component 12]

 

1 

B1 

AT-1220-TT-5-R Buzzer  

[Component 13]

 

2 

P1, P3 

1x7 pin header [

Component 9

] 

1 

P4  (already installed) 

USB-B mini jack (SMD)  

[Component 5]

 

1 

J6  (not installed) 

RJ-11 Jack 

1 

J1 

Jumper on the board (leave open) 

1 

J2 

Wire length 5cm red  

[Component 10]

 

1 

J3 

Wire length 30cm white  

[Component 10]

 

1 

PCB EL-31 

PCB Version 1.0a  

[Component 15]

 

Table 2 

 

Component 1 

 

 

Component 2 

 

Component 3 

 

Component 4 

 

Component 5 

 

Component 6

 

 

Component 7

 

 

Component 8

 

 

 

Component 9

 

 

Component 10

 

Содержание EL-31

Страница 1: ...10 Konolfingen Switzerland Telefon Fax E Mail Shop 41 0 31 792 04 61 41 0 31 792 04 62 info elcon ch http shop elcon ch EL 31 Replacement display kit for the YAESU FT 301D Construction operational and...

Страница 2: ...ns 14 3 1 Display 14 3 2 Communication with the display module 14 3 3 Menu structure 15 3 4 Modes 17 3 4 1 Frequency Display 17 3 4 2 Band modifications band switch positions 160m 15m or AUX 18 3 4 3...

Страница 3: ...tible with the old one and includes additional useful functions The assembling of the kit is simple since wired components are used almost exclusively 2 Assembly of the display module For the assembly...

Страница 4: ...Never touch the soldering pads on the board otherwise a good soldering will not be possible Should this happen anyway clean the pcb with a lint free cloth and benzine 7 For multi pole components such...

Страница 5: ...C2 C3 C4 C5 C8 C11 0 1uF ceramic designated 104 Component 3 1 C10 1uF 50V electrolyte Component 14 2 C9 C12 47uF 16V electrolyte Component 14 1 X1 8MHz Crystal HC 49U Component 4 6 U1 U2 U3 U4 U5 U6...

Страница 6: ...After soldering remove the strip C1 to 12 capacitors mind the polarity in electrolytic capacitors U1 to U6 7 segment LED display 10 pin note installation direction U7 IC MAX7221 or AS1106 LED Display...

Страница 7: ...wed by the Morse code R di dah dit Subsequently the display is in the frequency measurement mode If on P3 Pin 5 no RF signal is present the display will show If the first test is successful you can do...

Страница 8: ...ation value is stored in the memory of the microcontroller Select the display volts by using the VOL or VOL key Increase the voltage on the auxiliary power supply to e g 15 7V see Voltmeter and the di...

Страница 9: ...z Frequency Display Mode the fre quency is always displayed in the 10Hz resolution without the MHz digits Press the numeric key no 3 on the remote control again You are now back in the mode Press the...

Страница 10: ...ace the unit upside down and remove the 12 screws and the bottom cover Carefully pull off the two header connectors from the display board Figure 2 With a side cutter cut the wire of the 3 3k resistor...

Страница 11: ...rew behind the frequency setting knob see Figure 3 Tighten the two fixing screws on the display device holder again Mount the large frequency setting knob on the front panel again Turn the device over...

Страница 12: ...power supply with a voltage of about 13 8V 2A Set the BAND switch to 20 and CHANNEL switch to VFO Turn on the FT 301D The following text will appear on the display followed by the Morse code R di dah...

Страница 13: ...s on the MIXER COUNTER UNIT PB 1541D with the metal cover Install the bottom cover with the 12 screws Turn the device over so that the top is facing up Take off the cover and insert the speaker wire a...

Страница 14: ...mance loss it is possible to display simple infor mation In the EL 31 the characters are as defined in Figure 8 ABCcDEFGHhIiJKLlMNOoPQRSTUVWXYZ 0123456789 Figure 8 3 2 Communication with the display m...

Страница 15: ...messages to the user are possible For visually handicapped users there is an acoustic feedback for the frequency and the volt age display by Morse code via the built in buzzer All settings are stored...

Страница 16: ...VOL VOL VOL VOL VOL 0 1 2 3 4 5 VOL 1WpM VOL 1WpM VOL 0 01V VOL 0 01V VOL VOL t n t VOL VOL change VOL brighter VOL darker VOL VOL 6 7 VOL 10Hz VOL 10Hz OK tr tr tr tr VOL VOL tr m d VOL VOL OK e tr...

Страница 17: ...r appears as 28 510 MHz but correctly as 29 010 MHz The new digital display offers the following display modes 100Hz Mode This mode displays the frequency in 100Hz resolution and corresponds to the or...

Страница 18: ...ncy IF The transverter extends the frequency range in the 6m band from 50 52MHz 4m band from 70 72MHz 2m band from 144 146MHz 1 25m band from 222 224MHz or in the 70cm band from 432 434MHz To ensure t...

Страница 19: ...setup mode Use the VOL or VOL buttons to select the band you want to put on the 160m band 1 5MHz d 160m band no modification 1 5 2 0MHz d CBM 160m band 1 7 2 2MHz or d 30m band Press the Number key 8...

Страница 20: ...yed Press the OK key to switch to the tr transverter setup mode Use the VOL or VOL buttons to select the corresponding frequency range of your trans verter tr 10m band no transverter tr transverter 50...

Страница 21: ...minal 13 8V is measured within 100mV and displayed Change to the mode by using the VOL or VOL key To obtain an accurate reading the voltage measurement must be calibrated first see chap ter 2 3 1 Volt...

Страница 22: ...ltage When the voltage appears on the display it is possible to emit this information as Morse code through the built in buzzer Change to the mode by using the VOL or VOL key Press the numeric key no...

Страница 23: ...USB Loader Setup cd htm with an Internet browser the window appears as shown in Figure 13 Start the USB updater installation program by clicking on the link USB Updater installieren install USB Update...

Страница 24: ...in a spe cial manner With the command in Command Prompt Shutdown exe r o Windows 8 will launch directly to the boot menu option Further details are on the website see Fig ure 13 Follow the wizard pro...

Страница 25: ...of the EL 31 Start the program USB Updater exe The program opens the following USB Updater program window Figure 15 Click to button to connect the USB updater program automatically with the EL 31 The...

Страница 26: ...ger and verify if the Elcon USB Bootloader is listed in Custom USB Devices section Then repeat the data update 5 Appendix 5 1 Specifications Measuring ranges Frequency 0 30MHz with Transverter 50 432M...

Страница 27: ...g criteria will not be repaired or are not covered by warranty if acidic solder solder grease or acidic flux etc was used for soldering if the kit has been improperly soldered glued and assembled duri...

Страница 28: ...Page 28 29 April 7 2019 Elcon Switzerland EL 31_V2 1b_en docx 5 4 PCB assembly Figure 20 Figure 21...

Страница 29: ...EL 31_V2 1b_en docx April 7 2019 Elcon Switzerland Page 29 29 5 5 Schematics...

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