Ramsey Electronics BS1, Инструкция по эксплуатации

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BS-1
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As we head into the smaller components, remember to push each lead all
the way through the board until the component body rests on the board.
ˆ 12. Install C8, 10 µF electrolytic capacitor. Electrolytic capacitors are
polarized with a (+) and (-) lead and must be installed in the correct
orientation. Ordinarily, only the negative side of the capacitor is marked
(typically with a stripe and the (-) sign clearly shown,) while the PC board
will show only the (+) hole location. Use care to ensure proper
placement.
ˆ 13. Install R7, 1K ohm resistor (brown-black-red).
ˆ 14. Install R9, 10K ohm resistor (brown-black-orange).
ˆ 15. Install C4, .0047 µF - .005 µF capacitor (marked 502, .005, or 472).
ˆ 16. Install R10, 10K ohm resistor (brown-black-orange).
ˆ 17. Install C10, .002 µF – .0022 µF capacitor (marked .002, 202, or 222).
If you’re following with the schematic, the last group of components
completed an active low-pass filter with U1:A. This circuit prevents any
higher frequency noise (byproducts from U2 and U4 “working”) from being
passed on to the audio outputs.
ˆ 18. Install C7, 10 µF electrolytic capacitor. Be sure to orient for proper
polarity.
ˆ 19. Install R6, 4.7K ohm resistor (yellow-violet-red).
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20. Install R5, 15K ohm resistor (brown-green-orange).
ˆ 21. Install R3, 100 ohm resistor (brown-black-brown).
ˆ 22. Install C1, 10 µF electrolytic capacitor. Polarity!
The last five components form a non-inverting amplifier to increase the audio
level up to the line level (1-2Vpp) needed for input to auxiliary equipment.
Moving on, we’ll finish up the circuit surrounding the LM386 audio amplifier.
ˆ 23. Install C22, 10 µF electrolytic capacitor. Check orientation.
ˆ 24. Install C13, 10 µF electrolytic capacitor. You guessed it...Polarity!
ˆ 25. Install C17, .01 µF disc capacitor (marked 103 or .01 or 10nF).
ˆ 26. Install R14, 2 ohm resistor (red-black-gold).
ˆ 27. Install C19, .1 µF disc capacitor (marked 104 or .1).
ˆ 28. Install C12, 220 µF electrolytic capacitor. Observe polarity.
ˆ 29. Install C15, 220 µF electrolytic capacitor. Don’t forget... the proper
orientation is noted on the PC board or Parts Layout Diagram.