PLAQUETODO CIRCUITOS PDF

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Descubra todo lo que Scribd tiene para ofrecer, incluyendo libros y audiolibros de importantes editoriales. Assembly Manual. Revised No part of this book shall be reproduced by any means; electronic, photocopying, or otherwise without written permission from the publisher. If you are a student, and any parts are missing or damaged, please see instructor or bookstore.

If you purchased this kit from a distributor, catalog, etc. DO NOT contact your place of purchase as they will not be able to help you. Color Code. R3, R4. R1, R2. VR1, VR2. C1 - C4, C8. C5, C6. D1 - D4. D5 - D8. Integrated Circuit. Nut 7mm. PC Board. Nut Small. Fuse 1A. Nut Rocker Switch. Flat Washer 8mm x 14mm.

Heat Sink. Lockwasher 8. Rubber Feet. Strain Relief. Fuse Holder Upper Body. Insulator Washer. Fuse Holder Lower Body. PC Board Stand-off. Fuse Holder Hex Nut. Black Binding Post. Fuse Holder Washer. Lockwasher, Binding Post. Mica Insulator. Nut, Binding Post. Silicon Grease. Red Binding Post. Red Wire. Yellow Binding Post. Orange Wire. Blue Wire. Line Cord.

Solder Lead-Free. Binding Post Assembly. Fuse Assembly. Flat Washer. Use the following information as a guide in properly identifying the value of resistors. BAND 1. BAND 2. Most capacitors will have their actual value printed on them. Some capacitors may have their value printed in the following manner. The maximum operating voltage may also be printed on the capacitor.

Electrolytic capacitors have a positive and a negative electrode. The negative lead is indicated on the packaging by a stripe with minus signs and possibly arrowheads.

Also, the negative lead of a radial electrolytic is shorter than the positive one. For the No. Multiply By. Second Digit. First Digit. Maximum Working Voltage. If the capacitor is connected with incorrect polarity, it may heat up and either leak, or cause the capacitor to explode. Multiply Unit By. Using the proper soldering iron is of prime importance. A small pencil type soldering iron of 25 - 40 watts is recommended. The tip of the iron must be kept clean at all times and well tinned.

For many years leaded solder was the most common type of solder used by the electronics industry, but it is now being replaced by lead- free solder for health reasons.

This kit contains lead-free solder, which contains Lead-free solder is different from lead solder: It has a higher melting point than lead solder, so you need higher temperature for the solder to flow properly. Recommended tip temperature is approximately O F; higher temperatures improve solder flow but accelerate tip decay. An increase in soldering time may be required to achieve good results. Soldering iron tips wear out faster since lead-free solders are more corrosive and the higher soldering temperatures accelerate corrosion, so proper tip care is important.

The solder joint finish will look slightly duller with lead-free solders. Use these procedures to increase the life of your soldering iron tip when using lead-free solder:. The conical tip is the most commonly used. If you use a sponge to clean your tip, then use distilled water tap water has impurities that accelerate corrosion. Safety Procedures. Keep it in a safe area away from the reach of children. Solder is a toxic substance. Wash hands thoroughly after handling solder.

Assemble Components. In all of the following assembly steps, the components must be installed on the top side of the PC board unless otherwise indicated. The top legend shows where each component goes. The leads pass through the corresponding holes in the board and are soldered on the foil side. Use only rosin core solder. What Good Soldering Looks Like.

Types of Poor Soldering Connections. A good solder connection should be bright, shiny, smooth, and uniformly flowed over all surfaces.

Soldering Iron. Soldering iron positioned incorrectly. Solder all components from the copper foil side only. Push the soldering iron tip against both the lead and the circuit board foil.

Component Lead. Circuit Board. Insufficient heat - the solder will not flow onto the lead as shown. Apply a small amount of solder to the iron tip. This allows the heat to leave the iron and onto the foil.

Immediately apply solder to the opposite side of the connection, away from the iron.

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Descubra todo lo que Scribd tiene para ofrecer, incluyendo libros y audiolibros de importantes editoriales. Assembly Manual. Revised No part of this book shall be reproduced by any means; electronic, photocopying, or otherwise without written permission from the publisher. If you are a student, and any parts are missing or damaged, please see instructor or bookstore. If you purchased this kit from a distributor, catalog, etc. DO NOT contact your place of purchase as they will not be able to help you.

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