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2B. DC Power Circuitry
The following parts are installed near the left rear of the board.
2-43. Install the two-pin terminal J2 with the vertical locking
side toward the back end of the board as outlined and illustrated
in Figure 2.2.
Figure 2.2
goes between the nut and bottom side of board.) NOTE: the stiffness of
the leads will make it almost impossible for the part to lay perfectly flat on
the board. This is OK
2-49. Install the 10 volt regulator U10 as explained in 2-48.
Solder all three leads and trim away the excess lengths.
2-44. Install electrolytic capacitor
being sure to insert the longer ( + ) lead as
shown on the board.
2-45. Install electrolytic
2-46. Install electrolytic
2-47. Install coaxial DC connector J1: use sufficient
soldering heat to ensure a solid, shiny mechanical
bond from each lug to the plated circuit board holes.
2-48. Voltage regulator U10, typeNJM7810A,
resembles U1 in style, but the lead dimensions
differ. Using needle-nose pliers as needed, shape the
wide parts of the three leads so that U10's mounting
hole lines up with the hole in the board. After shaping
the leads, mount U10 to the board using the 3/8" #4-
40 screw, lockwasher and #4-40 nut. (This is the
longest screw used in the kit and the lock washer
1254
Assembly - 20
,
per Step 2-44.
per Step 2-44.
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