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5

Figure 1

Installation

 Strip off all of the insulation from 5.5 inches (14 cm) of the supplied hookup wire.

 Cut the bare wire into four 1" (2.5 cm) lengths and one 1.5" (4 cm) length.

 From the remaining hookup wire, cut two 1.5" (4 cm) insulted lengths. Strip 1/4" (6 mm) of insulation

off each end of both wires.

 Solder the two 1.5" (4 cm) insulated wires into the 

D

 and 

5

 pads on the KXB30 board, from the 

top

side (the side with all of the components).

 Flush-trim the leads of these two wires on the bottom side.

 Insert the five 1" (2.5 cm) bare wires into the 

G, C, B, A, 

and

 G

 pads along the edge of the KXB30

board, from the 

top

 side. Before soldering, make sure almost the entire length of each wire is extending out

from the top side—the wires should be inserted all way into their respective holes, but no farther.

Содержание KXB30

Страница 1: ...when the operator tunes below 6 7 MHz with 40 meters selected High performance PIN diode switches are used to minimize insertion loss and ensure good 30 m sensitivity With only a dozen or so parts the...

Страница 2: ...apacitor 0 1 F 104 2 E530020 C1 C2 Capacitor 1 40 pF trimmer 2 E540002 D1 D2 Diode PIN precision 5082 3081 glass 2 R560014 R4 R5 Resistor 1 k 1 8 W 5 brown black red 2 E500116 L1 L2 L3 Miniature RF ch...

Страница 3: ...tors C3 68 pF and C4 C5 0 1 F If these capacitors have bent formed leads straighten them completely using long nose pliers Install C3 68 pF so that its body is as close as possible to the PC board but...

Страница 4: ...embly instructions with their rounded sides down touching the KX1 PC board and their flat labeled sides up Q8 must be mounted exactly as shown by its component outline to prevent interference with one...

Страница 5: ...es Solder the two 1 5 4 cm insulated wires into the D and 5 pads on the KXB30 board from the top side the side with all of the components Flush trim the leads of these two wires on the bottom side Ins...

Страница 6: ...older the remaining wires yet Insert the remaining leads bare into their pads on the KX1 board then pull them all taut on the bottom side as you position the KXB30 Verify that all wire leads have been...

Страница 7: ...esistance at the collector of the PA transistor Q6 12 V line as well as pin 1 of the MCU 5 V line and pin 6 of U3 TC4427 6 V line If any of these reads a low resistance less than 500 ohms you may have...

Страница 8: ...sensitivity should drop sharply Re set the B30 parameter to ON and exit the menu Sensitivity should increase again Turn off the KX1 and re install the bottom cover Be very careful not to pinch the ba...

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