Ramsey Electronics FR1 Assembly And Instruction Manual - page 8
FR-1 • 8
BUILDING YOUR KIT
Check off each step as understood and completed. Examine the schematic
circuit diagram and PC-board X-ray illustration as you proceed. In all steps,
"install" means to insert the correct component in its correct PC board holes,
solder properly, and cut or "nip" away any excess wire.
Use good soldering technique - let your soldering iron tip heat each connection
wire enough so that the wire itself and the foil trace both become hot enough
together to melt the applied solder so that it flows smoothly around the wire
lead and on to the PC board trace.
1. Install J1, the RCA antenna jack. Solder all four points.
2. Install J3, the SCA output jack. Solder all four points.
3. Install J2, the speaker jack. Solder all three pins
4. Install potentiometer R12, the tuning control. Insert it into the PC board
so it seats firmly and is straight and even. Solder the three pins and the
two mounting tabs.
5. Install potentiometer R13, the Volume control in the same manner as
above.
6. Install S1, the on-off pushbutton switch. Solder all six pins firmly.
We've installed some 'landmark' parts so far just to get us used to soldering
our PC board. These parts also will give us our 'bearings' for future assembly
steps.
7. Install R10 2.2K ohm (red-red-red) directly behind R12 tuning pot.
8. Install C27, .001 uf disc capacitor (marked .001, 102, or 1nF).
9. Install C26, 4.7 or 10 uf electrolytic capacitor. Electrolytic capacitors
have polarity markings which must be observed when installing. If you look
closely at C26, you'll see a black strip on one side indicating the negative
lead, the other lead is therefore the positive. Install C26 properly as
indicated on the parts layout diagram.
10. Install jumper wire JMP1. Jumper wires act as 'bridges' for carrying
signals or power over PC traces on the board underneath. Now that you've
nipped a few leads off of some already installed components, we'll 'recycle'
a clipped lead and use it as our jumper wire! Bend the lead so it looks like
a staple, insert and solder it just like a regular component.
11. Install C15, .001 uf disc capacitor (marked .001 or 102 or 1nf).
12. Install R15, 4.7K ohm (yellow-violet-red).