Elcon EL-31 Construction, Operational And Functional Description Download | Manualshive

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EL-31_V2.1b_en.docx

April 7, 2019, ©

Elcon

, Switzerland

Page 15 / 29

The 6-digit 7-segment display is used as feedback for the inputs. Unfortunately, the comfort
is not great; therefore only short status 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 in the microcontroller of the display.

3.3 Menu structure

Operation is done via menus, which are shown in the figures below.

VOL+ / VOL-

VOL+ / VOL-

VOL+ / VOL-







0

1









Figure 9

VOL+ / VOL-

VOL+ / VOL-

VOL+ / VOL-







0



Figure 10

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Summary of Contents for EL-31

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

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

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