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FM-100 Page 30
16F. Install J8, a 5 pin jumper header. Make sure and leave the longer
leads facing up, with the shorter ends soldered to the board. This is where
the connection is made to the front panel.
17F. Install C71, a 10uF electrolytic capacitor. Check polarity!
18F. Install C60, another 10uF electrolytic capacitor.
19F. Install C68, a .1uF ceramic capacitor (marked .1 or 104).
20F. Install C64, a 100pF ceramic capacitor (marked 100 or 101).
21F. Install C51, a .1uF ceramic capacitor (marked .1 or 104).
22F. Install C40, a 100pF ceramic capacitor (marked 100 or 101).
23F. Install C88, a .001uF ceramic capacitor (marked 102 or .001).
24F. Install C45, a .001uF ceramic capacitor (marked 102 or .001).
25F. Install U11, a LF347 low noise opamp. Make sure and orient it in the
same direction as shown in the parts layout. Also check for all 14 pins to
be through the board before soldering.
26F. Install R23, one of the 1K ohm trim pots (orange Philips top marked
102).
27F. Install R35, the remaining 1K ohm trim pot (orange Philips top
marked 102).
Well, that’s it for the peak hold circuits and the 15KHz low pass filter. Quick
and painless, wasn’t it? We have to go back now and check all our work to
make sure that we didn’t install anything in the wrong way or have any
soldering errors such as bridges and cold solder joints. When you’re done, go
grab a soda (preferably caffeinated) and give yourself an eyeball break.
Our next section is the toughest of the whole kit, so make sure you have all of
your skills primed and ready for the true test!
Содержание FM-100
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