Elecraft XV Assembly Manual for XV222 User Manual
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In the steps that follow, you'll be installing groups of
components. When working from a long list, install all of the items on
one line before moving on to the next. Arrows (
) appear in the list
to remind you of this order. Components may be soldered one at a
time or in groups. Leads can be trimmed either before or after
soldering. After trimming, leads should be 1/16" (1.5 mm) or less in
length.
Install six additional PN2222 transistors on the back side of the PCB
(the side that is not silk-screened) just as you did Q5. Align the flat side of
each transistor with the outline shown on the silk screening.
__ Q6
__ Q1 __ Q7
__ Q2
__ Q3 __ Q4
Install capacitor C1, .047
F (473) on the back side of the PCB (the
side that is not silk-screened). Position the capacitor as shown in Figure 9
.
INSERT LEADS UP
TO THE PLASTIC
COATING
473
BE SURE NUMBERS SHOWN IN PARENTHESIS
IN TEXT APPEAR ON BODY. THERE MAY BE
ADDITIONAL MARKINGS AS WELL.
SOLDER & TRIM LEADS
Figure 9. Installing Capacitors.
Install capacitor C4, .001
F (102) on the back side of the PCB (the
side that is not silk-screened).
Install ceramic resonator Z1 (4.0 MG) or (4.00 MG) on the back side
of the PCB (the side that is not silk-screened). This part may be inserted
in either direction. Like the capacitors, insert the resonator as far as the
plastic coating on the leads will allow.
Install JP1, a two-pin header connector on the back side of the PCB
(the side that is not silk-screened) as shown in Figure 10 . Temporarily
place a shorting block on the pins to provide a finger rest while
soldering. Do not hold the solder iron on the pins more than 1 or 2
seconds. Excessive heat will melt the plastic part of the header.
SILK SCREENED SIDE
SHORT PINS GO
THROUGH
BOARD
Figure 10. Installing Header Connectors.
Check to ensure that:
_ All of the above parts were installed in the back of the PCB (the
side that is not silk-screened).
_ All parts are soldered.
_ All leads are trimmed to 1/16” (1.5 mm) or less.