Heathkit SB-1000 - Page 14

Page 14
© Solder the diode leads to the foil as follows:
1. Push the soldering iron tip against both
the lead and the circuit board foil. Heat
both for two or three seconds.
SOLDERING
IRON
COMPONENT
CIACUIT
BOARD
2. Apply solder to the other side of the
connection. IMPORTANT: Let the heated
lead and the circuit board melt the solder.
SOLDERING
3. As the solder begins to melt, allow it to
flow around the connection. Then remove
the solder and the iron and let the
connection cool.
SOLDERING
() Cut off the excess lead lengths close to the
connection. WARNING: Clip the leads so the
ends will not fly toward your eyes.
() Check the connection. Compare it to the
illustrations in Detail 1-1A. After you have
checked the connections, proceed with the
following assembly. Use the same soldering
procedure for each connection.
Heathkit
NOTE: Make sure you installed diode D310 on page
13.
Install a 1N5408 (#230-6776) diodes at each of the
following four locations:
() D309.
Q D308.
Q D307.
QO D306.
() Solder the leads to the foil and cut off the
excess lead lengths.
© Push the longer end of the circuit board pin as
far as possible into hole B. Then bend the end
so it is flat against and within the indicated
foil pattern. Make sure the other end of the pin
is still perpendicular to the component side of
the circuit board. Then solder the longer end to
the foil. NOTE: You will have to scrape the
foil around the pin before you solder it.
BEND PIN OVER
‘AND SOLDER
TO SCRAPED
FO
SCRAPE SOLDER RESIST
FROM FOIL AREA
Section 2
Install a 1N5408 (#2304776) diode at each of the
following five locations:
Q D301.
Q D302.
() D303.
(D304,
Q D305.
() Solder the leads to the foil and cut off the ex-
cess lead lengths.