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There are currently no product reviews.
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Thanks you very much for this "hard to find" service manual.
Will help a lot in repairing this tuner.
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I have this hi-fi system for a long time and I need to repair some things. Founding this manual will be very helpfull :)
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It is pretty good. The schematics were covered all components, the manual also provide the parts list . It's useful for the trouble shooting.
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Very fast service, best quality of the service manual and the schematics
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This service manual of the old video cassette recorder VT-LC50EM is very good readable even the tiniest numbers (i.e. IC-pins). The circuits are very clear. Many details of the schematic are very good described but in GERMAN language. Many schematic details - but complete at all. Common background information of several details are enclosed and physical knowledge of the TFT liquid crystal display for example. The manual lacks PCB drawings. If you understand german I would recommend this manual for you.
2 Service Navigation
2.1. General Description About Lead Free Solder (PbF)
The lead free solder has been used in the mounting process of all electrical components on the printed circuit boards used for this equipment in considering the globally environmental conservation. The normal solder is the alloy of tin (Sn) and lead (Pb). On the other hand, the lead free solder is the alloy mainly consists of tin (Sn), silver (Ag) and Copper (Cu), and the melting point of the lead free solder is higher approx.30°C more than that of the normal solder. Distinction of PCB Lead Free Solder being used
Service caution for repair work using Lead Free Solder (PbF) � The lead free solder has to be used when repairing the equipment for which the lead free solder is used. (Definition: The letter of �PbF� is printed on the PCB using the lead free solder.) � To put lead free solder, it should be well molten and mixed with the original lead free solder. � Remove the remaining lead free solder on the PCB cleanly for soldering of the new IC. � Since the melting point of the lead free solder is higher than that of the normal lead solder, it takes the longer time to melt the lead free solder. � Use the soldering iron (more than 70W) equipped with the temperature control after setting the temperature at 350±30°C . Recommended Lead Free Solder (Service Parts Route.) � The following 3 types of lead free solder are available through the service parts route. RFKZ03D01K-----------(0.3mm 100g Reel) RFKZ06D01K-----------(0.6mm 100g Reel) RFKZ10D01K-----------(1.0mm 100g Reel) Note * Ingredient: tin (Sn) 96.5%, silver (Ag) 3.0%, Copper (Cu) 0.5%, Cobalt (Co) / Germanium (Ge) 0.1 to 0.3%
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