Checking the package contents Required tools and consumables Safe and correct soldering Assembling the kit Performing a visual check Performing a functional test and connecting the s88-Booster Manufacturer's note Certification Conditional warranty Parts list Printed Circuit Board (PCB) layout (Fig. 1) Connections (Fig.
English S88-2 How to use this manual If you have no specialist technical training, this manual gives step-by- step instructions for safe and correct assembly of the kit and fitting of the ready-built module, and operation. Before you start, we advise you to read the whole manual, particularly the chapter on safety instructions and the FAQ chapter.
S88-2 English Safety instructions Mechanical hazards Cut wires can have sharp ends and can cause serious injuries. Watch out for sharp edges when you pick up the PCB. Visibly damaged parts can cause unpredictable danger. Do not use damaged parts: recycle and replace them with new ones. Electrical hazards §...
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English S88-2 Fire risk Touching flammable material with a hot soldering iron can cause fire, which can result in injury or death through burns or suffocation. Connect your soldering iron or soldering station only when actually needed. Always keep the soldering iron away from inflammable materials.
Use only original spare parts if you have to repair the kit or the ready-built module. Operation overview The s88-Booster reduces the interferences occuring during data transfer from the s88-feedback modules to the receiver (central unit, PC via interface or memory). Interference is caused by external electrical signals such as: §...
Modules with ICs with a type designation starting with number „74“: These modules are not suitable to use with the s88-booster. Highering the supply voltage to 12 V on the s88-booster would damage these modules. Modules with ICs with a type designation containing the numbers „4014“...
S88-2 English Checking the package contents Check the contents of the package for completeness immediately after unpacking: § one kit, containing the components listed in the parts list (see page I) and one PCB or § one ready-built module, § one 6-core ribbon cable with plugs, §...
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English S88-2 § Use a small soldering iron with max. 30 Watt. Keep the soldering tip clean so the heat of the soldering iron is applied to the solder point effectively. § Only use electronic tin solder with a flux. §...
S88-2 English Assembling the kit You can skip this part if you have purchased a ready-built module. Preparation Put the sorted components in front of you on your workbench. The separate electronic components have the following special features you should take into account to prevent mistakes in assembling: Resistors Resistors reduce current.
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English S88-2 voltage sustaining capability higher than required is always possible. Diodes Diodes allow the current to pass through in one direction only (forward direction), simultaneously the voltage is reduced by 0,3 to 0,8 V. Exceeding of the limit voltage always will destroy the diode, and allow current to flow in the reverse direction.
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S88-2 English ICs are sensitive to damage during soldering (heat, electrostatic charging). For that reason in the place of the ICs IC sockets are soldered in, in which the ICs are inserted later. The mounting orientation of the sockets is preset as well. The markings on the PCB, the socket and the IC must lie on top of each other after mounting.
English S88-2 power. In the worst case the whole circuit can be damaged, and at the best, a wrongly connected part will not function. Next solder the terminal strips and the solder pins. Join the terminal strips together before soldering. Finally, insert the ICs into the soldered IC-sockets.
Before installing the s88-booster you should check if the s88-feedback modules used in your model railroad layout are compatible with a voltage supply of 12 V and so with the s88-booster. Please note the section „Operation overview“! Checking the s88-feedback modules You should check if the s88-feedback modules are working properly before connecting them to s88-booster.
English S88-2 Caution: The s88-booster must be supplied by a transformer of it´s own. In case the s88-booster is connected to a transformer that also supplies other parts of the layout, short-circuits and damages at the s88-booster cannot be excluded.
S88-2 English Manufacturer's note According to DIN VDE 0869, the person who builds this kit or brings the circuit into operation is the manufacturer of the product. If he sells the product to another person he is responsible for passing on all the relevant papers.
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English S88-2 § if arbitrary changes in the circuit are made, § if the circuitry is changed in any way, through adding or omitting wiring or components, or through modifying the circuit board, § if parts other then the original ones delivered with this kit are used, §...
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