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Parts Inventory

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Caution:

 

Diodes D1 and D2 can be damaged by static discharge. Before handling

these parts, put on an anti-static wrist strap or touch any grounded, unpainted metal
surface.

 The table below lists all parts in the kit. The KX1 Owner's manual has photographs of similar parts.

Ref.

Description

Qty

Part No.

C3

Capacitor, 68 pF ("68" or "680")

1

E530150

C4, C5

Capacitor, 0.1 µF ("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 choke, 47 µH (yellow-violet-black)

Note: L1-L3 may be labeled R1-R3 on the PC board.

3

E690043

MISCKXAT1 PC

 board

1

E100184

MISCSolid, insulated hookup wire, green

1 ft.

E760008

MISCRubber bumper, .04" thick x 0.3" square

2

E980017

Parts Placement Drawing

A drawing showing the locations of components on the KXB30 board can be found in Appendix F of the
KX1 Owner's Manual.

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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