Elenco Electronics SM-200K Скачать руководство пользователя страница 7

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PRACTICE

If you are unfamiliar with soldering surface mount components, it
would help to practice a bit before starting the assembly process.  Six
0 ohm resistors, marked (000), are supplied with the SM-200K kit.
Only two are used in the assembly process.  The other four may be
used for practice.  Use the PC board area shown in Figure 5.  If you
have not already done so, read the soldering tips in the previous
section.  Try both of the methods described to see which you prefer.

SOLDER RESISTORS AND CAPACITORS TO PC BOARD

Be sure to read the section on soldering tips. Then follow the step by step instructions below.  As each step is
completed, place a check mark in the box next to the instruction.

R4 - 56k

Ω

Resistor

(563)

R3 - 100k

Ω

Resistor

(104)

R5 - 10k

Ω

Resistor

(103)

C2 - .0039

μ

F Capacitor

(value marked on bag)

J1 - 0

Ω

Resistor

J2 - 0

Ω

Resistor

(000)

C1 - .015

μ

F Capacitor

(value marked on bag)

R2 - 1.5M

Ω

Resistor

R6 - 1.5M

Ω

Resistor

(155/1504)

R7 - 470

Ω

Resistor

R8 - 470

Ω

Resistor

(471)

R1 - 15k

Ω

Resistor

(153/1502)

0

Ω

Resistors

Figure 5

Содержание SM-200K

Страница 1: ...ual Surface Mount Technology Kit Copyright 2007 2000 Elenco Electronics Inc Revised 2007 REV L 753200 No part of this book shall be reproduced by any means electronic photocopying or otherwise without...

Страница 2: ...Part 6 J1 J2 P1 P4 0 0 196101 2 R7 R8 470 5 1 8W 471 196344 1 R5 10k 5 1 8W 103 196514 1 R1 15k 5 1 8W 153 1502 196518 1 R4 56k 5 1 8W 563 196556 1 R3 100k 5 1 8W 104 196614 2 R2 R6 1 5M 5 1 8W 155 1...

Страница 3: ...10 outputs and a clear input Only one of the 10 outputs will be high at any given time The other 9 will be low Let us assume that output 1 is high If a pulse is fed to the clock input output 1 will g...

Страница 4: ...ency rate as shown in Figure 4 This combination produces the unusual sound heard from the buzzer BUZZER The SM 200K buzzer consists of a piezoelectric material on a metal base When a voltage is applie...

Страница 5: ...ut can be identified by different color and quantities SAFETY PROCEDURES Wear eye protection when soldering and during all phases of construction Locate soldering iron in an area where you do not have...

Страница 6: ...simultaneously to the lead and the PC board foil 4 Remove the iron and allow the solder to cool The solder should have flowed freely and not lump up around the component After a component is completel...

Страница 7: ...e previous section Try both of the methods described to see which you prefer SOLDER RESISTORS AND CAPACITORS TO PC BOARD Be sure to read the section on soldering tips Then follow the step by step inst...

Страница 8: ...capacitor is polarized be sure that the and sides are positioned correctly Warning If the capacitor is connected with incorrect polarity it may heat up and either leak or cause the capacitor to explod...

Страница 9: ...f the contact points touch the lead in foil to the center ring of the switch foil Peel one layer of the protective backing off the double sided scotch tape Place the tape over the dimple switch as sho...

Страница 10: ...s 6 and 7 Be sure there are no solder bridges between the IC pins 3 Check that the dimple switch is mounted with the dome upward 4 Check the value and the soldering of R5 5 Check Q1 B SOUND BUT NO LED...

Страница 11: ...A capacitor C4 charges to 9V B capacitor C3 charges to 9V C the oscillators run D all of the above 10 After the oscillators stop the remaining LED gradually goes out as A C3 loses its charge B the LED...

Страница 12: ...SCHEMATIC DIAGRAM Elenco Electronics Inc 150 Carpenter Avenue Wheeling IL 60090 847 541 3800 Fax 847 520 0085 Web site www elenco com e mail elenco elenco com...

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