Ramsey Electronics FX-440 Manual page 85

Install the following capacitors:
[ ] [ \(CRS. C16, .1 uf (marked .1 or 104).
( ) [ ,i,,tR9. CS, .01 uf (marked .01 or 103 or 10nf). •
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CR10. C9, .01 uf.
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/CR11. CS, .01 uf.
[ ] [ 1 ·
CR12. C19, .01 uf.
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CR13. C13, .01 uf.
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4. C14, .01 uf.
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CR15. C102, .01 uf.
( ] [/] CR16. C6, .001 uf (marked .001 or 102).
( ] [ J/CR17. Install C7, 4. 7 or 1 O uf. electrolytic. Watch polarity (or
U1 's audio won't reach U2!)
[ ]
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CR18. Select FL2, the 455 KHz ceramic IF filter, it is the
rectangular plastic block with 3 thin pins. Verify that its pins are
strc;i.ight and not bent over, if they are, straighten the leads.
.
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CR19. Install FL2, It fits only one way.
So far, most disc capacitors installed have been from your endless
supply of .01 and .001 capacitors. If you have not done so already, now
would be a good time to sort and organize all your •picofarad"
capacitors, ranging in value from 2 to 100 pf. Correct selection of these
values will be ESSENTIAL throughout the RF stages of your transceiver.
[ ] [ \}/CR20. Install C10, 100 pf. (marked 100 or 101 ).
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r 1 1
o,J""cy21. 1nsta11 c1
s,
1
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pf.
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Install C12, 15 pf.
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CR23. Select and install Y1, the 21.855 MHz. crystal. It must be
snug on the board before soldering. [Be sure not to confuse Y1
with Y2, the 12.80 MHz. crystal which will set the Reference
Frequency for the PLL Synthesizer, or with FL 1, which has 3
wires.]
[ ] [ 1
}#,.~24.
Install L 1, the 455 KHz. shielded coil marked
··
'LB5330~HK.
Make sure it is seated squarely on the board before
sold,,erfrig. Solder all pins.
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CR25. Install C101, .01 uf.
FX-440 Assm. 25