Panavise EDU-004, Manual

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EDU-004.
ElectronicSoldering.
Module’spower supply.
Thecircuit issupplied at 9V DC,even ifit canaccept voltagefrom 5t o1 2V DC.Y ou
haveto usea laboratorystabilised powersupply likethe CebekFE-103. Thecircuit's
powersupply isdone throughinput terminals,identified withpositive andnegative
symbols.R egardingthe powersupply connectionyou haveto respectthe indicated
polarity.For theinstallation, wesuggest youto placea switchand a5 0m Afuse onthe
positiveinput.
Required Material.
T o makethis practiceit willbe necessary:
.-A solderingiron forelectronics, a“pencil” typeor solderingstation.
.-Cut pincers
.-Fixing pincers
.-Pincers
Moreover ,i fyou alreadyhave atool tosupport theprinted circuitboard and
components,you canse it.
EDU-004.
Electronic Soldering.
Step 3. To select components and to insert them, ( ). 2nd part
Step . To verify the soldering iron temperature 4 .
Step . To clean e 5 lements.
Step . To start the soldering 6 .
according to the projected components' height.
Usually, the soldering process is started with integrated circuit and their basis, then
components with lower height like transistors, small capacitors, leds, etc….and
successively till you complete the circuit with higher components.
Concerning the manual soldering, there are several tools to help you to maintain fixed
components on the circuit till you finish the soldering, leaving free both hands. Ifyou
don't have any tool, you will be obliged to use alternative fixing methods.
Some components like resistors allow, through their opening terminals, to be turned
without falling and then to be soldered. Others components require to be obligatory
fixed to the board, for instance, using specific pincers…
The soldering process has to be start when the soldering iron reaches the maximum
operating temperature. A practical way to check it is to move closer the tin to the tip
and if it melts without problems, that means the soldering iron is ready to be used.
Before to start this process, it is highly recommended to check the board side where
components have to be soldered. For industrial circuits, containing a previous tin bath,
you only have to brush the surface to eliminate any impurity or tin wire, invisible at the
sight. For home circuit, a previous cleaning with alcohol or solvent will make easier the
soldering operation.
Regarding the soldering iron tip, before to sold each component you have to check the
its cleaning state. If you have an accumulated excess of tin or resin, you have to clean it
washing the dirty tip part with a wet sponge and with the tip as hot as possible. This
operation has to be constantly and frequently done till you finish the circuit; otherwise
it can be produced failures on the soldering or problems on the soldering process.
The soldering iron tip has to be placed on the union of two elements to solder,
allowing the heat distribution between both. You have to control the heat application;
this one has to be enough to heat both components, but not excessive, to avoid to
damage the component. If you use pincers to support the component's pin, you have
also to take in account the temperature loss due to the pincer's absorption.
When both elements are heated, without removing the soldering iron, you have to
apply the tin on the surface to solder, avoiding to touch the tip. The tin will be melted
and flow between both elements to solder, being distributed on the surface. If this
surface is important (the hole as important as the pin), the tin may have some
Bibliography.
-O nGoogle: Soldering| Solderingstation.
-O nthe internet:www .fadisel.com| www.jbc.com |
www.panavise.com/f/vises/vises_cbholders.html
EDU-004.
ElectronicSoldering.
Thesoldering practiceincludes aboard composedby 10identical circuits'auto cutand
componentsto assemblethem. Seethe circuitelectrical drawingand componentsmap
toeasily foundtheir valueand theirlocation onthe circuit.
Theend-user hasto assembleand tosold these10 circuits,the practiceof this
repetitiveprocess willinsure youthe initiationand theimprovement concerningthe
solderingtechnique.
Firstly,you haveto controlthe rasterof thecomponents presenton thecircuit, aswell
asthe acquisitionformat. Forinstance, ifthe resistors'location issupplied ina 15 mm
rasteror atthe oppositein 10mm (asthe suppliedone inthis practice).
Itwill benecessary tocut temto asuitable size.There aredifferent toolsspecially
designedfor thisfunction, evenif generallythis preparationis manuallydone.
Cutor standardpincers, tinand solderingiron aswell asa wetsponge willbe
necessarytools tostart thesoldering. Asoldering ironsupport willbe highly
recommendedto avoidburns oaccidents dueto alack offixing whenit isuseless.
T o cutand removeseveral circuits,you haveto slightlypress inopposite waysthe
circuitto removeand thefollowing; thenyou couldeasily withdraweach piece.
Onceinserted onthe circuit,each componentprojects adetermined heighton the
circuit'sbasis. Indeed,a diodeor anintegrated circuitdon't havethe sameheight thana
capacitoror aterminal. Inorder toavoid anydisturb duringthe solderingprocess and
touse assemblytools, thecomponent insertionwon't bedone inanarchical modebut
SolderingP ractice
ElectricalDrawing
LD1
LD2
R4
R3
T2
T1
R1
R2
D1
C1
C2
1/4W .All Resistors
Vcc Vcc Vcc
R1
10K
T1
BC547
R3
10K
T2
BC547
+
C1
100uF
+
C2
100uF
LD2
5m mle d
R2
560
R4
560
LD1
5m mle d
Vcc
POWER
1
2
D1
1N4003
Green Red
Componentsindication.
Practice Drawings.
Step1. T o preparethe material.
Step2. T o removethe circuitfrom thepanel.
Step3. T o selectcomponents andto insertthem.
Module´soperating mode.
Oncethe modulesupplied, itwill starta constantintermittence betweenthe led1 and
theled 2.The intermittencespeed willdepend onC1 andC2 capacitors.If youare
usingcapacitors withlower capacity,the intermittencespeed willbe higher .A tthe
opposite,if capacitorsoffer ahigher capacity,the intermittencespeed willdecrease.
Moreover ,i fC 1and C2have adifferent value,the intermittencewill beasynchronous.
180º
90º
raster
Components preparation and auto fixing.
a.
EDU-004.
Electronic Soldering.
Cebek educational modules included in the EDU serial offer several practices to analyse,
experiment and to learn basic knowledge on the studied theme. Nevertheless, their
function is not to make a mini-class on each theme, but to complete and to be used as
basis, as well as to allow to experiment on the theoretical theme evocated by the teacher.
For this reason, we suggest you to use modules form the EDU serial under the
supervision and the direction of a teacher.
Cebek doesn't offer a consulting service as concern the theoretical or the operating
principles concerning the theme deal with the module. It only offers a technical assistance
regarding questions and problems coming from the circuit's internal operating mode.
All Cebek modules included in the EDU serial have a warranty of 3 years as concerning
components and labour man. All damages provoked by external causes (from the circuit),
as well as wrong connections or installations or due to an operating mode no indicated
into the module's documentation won't be covered by the warranty. More over, all wrong
or incorrect handling won't be excluded from the warranty. For any claim, you have to
present the corresponding invoice.
To contact our technical department, you can send a message to
, or a
fax :Nº+34.93.432.29.95 or a mail to the following address: CEBEK, c/Quetzal, 17-21,
08014 Barcelona (SPAIN).
sat@cebek.com
Warranty and Do not forget.
Rules and Identification of the EDU serial elements.
To make easier the identification and for a single rule as concern different practices and
educational Cebek modules, all common elements will answer to colour code and to a
shape.
Test Point. (TP).
It allows to connect oscilloscope's or multimeter extremities to read parameters
relating to the practice. According to its colour, it will indicate that the Test Point
(TP) is connected to the positive or to the negative of the circuit, as well as reads
concerning current, voltage, load, etc….
Jumper.
circuit
Red
Conmutator / Switch.
Power supply Current Voltage
Red Blue Yellow
Logical
TP. Tension
Yellow
TP. circuit
Black
TP. TP. Courant
Blue
TP Without current or TP AC.
White
Green
It allows to close or open a signal or an electrical circuit
According to the colour of the switch, you can control the voltage, the current
Beforeto start...
Beforeto starta practice,it isvery importantto carefullyread itsinstruction manualas
wellas correspondingindications.
Y ou haveto docorrectly connectionsin indicatedcontact points,otherwise measures
dependingon theseconnections willbe confusesor wrong.
Donot makeconnections notindicated inthe instructionmanual toavoid todamage
thecircuit.
Ifthe Ledof thepower supply“PWR ”doesn't lighton orif itsfunction suddenlystops,
youhave toquickly disconnectthe powersupply forthe deviceand checkthere isany
short-circuitas wellas thefuse's status.
Evenif describedpractices canbe donefollowing instructionmanual, werecommend
youto useit underthe supervisionof ateacher whocan adviseand bringyou asupport
(anhelp) concerningdescribed concepts.
Inthe circuit,each practicewill bedelimited bya rectanglewith thecorresponding
number .One orseveral experiment(s)can bereported andreferenced tothis practice.