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TeKno Radio FM

C-6204

This kit is ideal for learning the basic operation of a 

FM radio works.

Technical characteristics :

Dimensions: 122 x 66 mm

Antenna: 220 mm

Frequency: 88-108 Mhz

Tuning: Locate FM stations via scanner
You require two R6 / AA  

B

atteries not included

Note: Before beginning assembly, check that all parts .

Description of the kit:

FM Radio

varicap

Scanner to tune in stations

Amplifier and speaker

Tools needed

Small file

Soldering iron and tin

Cutters

Tweezers or needle-nose pliers

Star tip screwdriver (small)

Glue

www.cebekit.com

     -     [email protected]

Содержание C-6204

Страница 1: ...z Tuning Locate FM stations via scanner You require two R6 AA Batteries not included Note Before beginning assembly check that all parts Description of the kit FM Radio varicap Scanner to tune in stations Amplifier and speaker Tools needed Small file Soldering iron and tin Cutters Tweezers or needle nose pliers Star tip screwdriver small Glue www cebekit com info cebekit com ...

Страница 2: ...mic capacitor 102 27 Disc ceramic capacitor 473 Screen printing error indicating 104 28 Disc ceramic capacitor 332 29 Disc ceramic capacitor 222 30 Disc ceramic capacitor 181 31 Disc ceramic capacitor 403 32 Disc ceramic capacitor 332 33 Disc ceramic capacitor 104 34 Disc ceramic capacitor 331 35 Disc ceramic capacitor 683 36 Disc ceramic capacitor 104 37 Disc ceramic capacitor 473 38 Disc ceramic...

Страница 3: ...ortable applications The integrated circuit ASIC also includes an automatic squelch circuit MUTE on pin 1 to suppress weak signals However this is an optional feature that allows the technician experiment with receiving signals weaker radio It is ideal for an integrated radio enthusiasts due to its low cost and very few external components circuit The variable capacitors to tune the stations are c...

Страница 4: ...scheme Take the output signal in the number of integrated circuit pin 2 HFOV After passing through the volume potentiometer it is applied to the amplifier stage low frequency formed by three transistors directly attack the speaker Also see that in our application the antenna signal passes through the coil L3 To learn the circuit and master more knowledge of electronic components we recommend that ...

Страница 5: ... 3 rear housing 4 Speaker 5 Protective grid 6 Full Printed circuit 7 Telescopic antenna 8 Volume Button 9 Scanner Button 10 self threaded screws 2 3 x 10 mm 11 self threading screws 2 x 6 mm 12 Nut M3 13 Screw M1 8 14 Screw M3 5 www cebekit com info cebekit com ...

Страница 6: ...red on the printed circuit board The normal welding of a printed circuit is a simple process You have to start by placing the lower end components and for the highest See that there are drawn on the printed circuit components that are not included or should be mounted In this image clearly see empty holes in the printed circuit 6 www cebekit com info cebekit com ...

Страница 7: ...red red R9 10k Ohm brown black orange 2 Will put in place and we will open pin from falling when turning the circuit 3 The solder 4 Cut the excess corner with pliers cutting Mount ceramic capacitors 1 We put the capacitors Do not They have polarity We recommend placing all capacitors on the side of registration C1 120 C2 473 silkscreen marking Error 104 C3 332 C4 222 C5 181 C6 403 C7 332 C8 104 C9...

Страница 8: ...l L1 is the smallest The welding must be done in the tinned part of the leg not the glazed part 2 will put in place and we will open the pins from falling when turning the circuit 3 The solder 4 Cut the excess corner with cutting pliers Mounting buttons 1 We will place the two buttons The botoncito goes in the side of the square hole See picture 2 The solder 8 www cebekit com info cebekit com ...

Страница 9: ...ll when turning the circuit 3 The solder The welding time can not be long because it could hurt you 4 Cut the excess corner with cutting pliers Mounting transistors 1 We will place the transistors T1 S9014 NPN type T2 8050 NPN type T3 S9015 PNP NOTE POLARIZED COMPONENT Check While the model the position of the flat face and therefore the three pins 2 We will put in place and we will open slightly ...

Страница 10: ...iometer assembly Tools l Welder tin 1 Put the printed circuit side of the copper tracks Attention to the position 2 Matching the five holes of the printed circuit with the terminals potentiometer and solder one of the terminals 3 have to be well addressed Once all right solder all terminals Verification mounting 1 We will check that all the material is placed in its proper place and in the correct...

Страница 11: ...pliers and cutters L3 coil assembly 1 We will insert one of the legs of the L3 coil in the lower bore the circuit marked 30P 2 solder pin inserted into the circuit board 4 Cut the excess corner with cutting pliers 11 www cebekit com info cebekit com ...

Страница 12: ...e of the battery compartment 4 If the batteries are not loose it will be necessary to adjust the battery compartment 5 With the half round file shaping the three pairs of arcs see Figure B retouch until the batteries from moving freely inside Batteries have just squeezing gently down and must come up with the only force of the springs of the battery compartment If this setting is not done they wil...

Страница 13: ...e B 3 Set the button with the small screw 1 8 x 4mm 4 Place the SCAN RESET button so that both pins remain in the rectangular holes of the buttons Screen printing has to look like the picture C Center the drill button with the printed circuit 5 Set the button with the M3 screw and nut Tighten only with your fingers see Figure D 6 Tighten the screw and nut so that is not too tight We must get back ...

Страница 14: ...ble Printed circuit Place White L3 Antenna Yellow left SP Negative speaker Yellow right SP positive speaker Blak Vcc Negative battery holder Red Vdd Positive battery holder NEGATIVE POSITIVE 14 www cebekit com info cebekit com ...

Страница 15: ...tinning the white wire at both ends 2 Tinning the antenna near the bottom see Figure A 3 Solder one end of the white wire to the antenna 4 Attach the antenna to the front casing with a self threaded screw 2 x 6 mm see Figure B 5 Solder the other end of the white wire to the pin loose coil L3 See Figure C 15 www cebekit com info cebekit com ...

Страница 16: ...r the red cable to the positive terminal of the battery compartment 5 Solder the other end of the yellow wire welded into the negative speaker the terminal SP the PCB 6 Solder the other end of the cable into the yellow soldier positive speaker the terminal SP on the PCB 7 Solder the other end of the black cable to the track labeled Vcc 8 Solder the other end of the red wire to the track labeled Vd...

Страница 17: ...C 6204 KIT MOUNTED Top view with the folded antenna Bottom view of the battery holder Scanner button Volume and switch button 17 www cebekit com info cebekit com ...

Страница 18: ...ions can not be tuned if the area has a reception too weak 8 When the sound becomes weak or distorted replace the batteries with new ones NOTE 1 Very important to the correct position of the batteries 2 Replace the batteries when the sound is weak 3 Do not use rechargeable batteries to avoid damage due to possible leakage of acid 4 Do not mix old and new batteries of different brands 5 Remove the ...

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