BS-1
•
15
48. Install R15, 1K ohm resistor (brown-black-red).
49. Install C14, .01 µF disc capacitor (marked .01 or 103 or 10nF).
50. Install C16, .01 µF disc capacitor (marked .01 or 103 or 10nF).
51. Install C18, 100 pF disc capacitor (marked 100 or 101).
52. Install C5, a .1 µF disc capacitor (marked 104 or .1)
53. Install C11, 1 µF electrolytic capacitor. Check orientation.
54. Install R16, 470 ohm resistor (yellow-violet-brown).
Good job! Take a moment to check over the last group of components installed.
Double check resistor R15 as the color code of this 1K ohm resistor is easy to
mistake for one of the 10K ohm resistors.
Observe the miniature LED’s provided with
your kit. Being diodes, these components are
polarized and must be oriented correctly.
Examine one of the LED’s and notice how one
lead is longer than the other. The longer of the
two leads is the anode, or (+) connection. Most
diodes also have a flat molded in the
component body. This corresponds to the
cathode or (-) side of the part.
When the pc board is installed into the case the LEDs will be bent over and
pushed through the front panel, so be sure to keep the leads as long as
possible.
55. Install the red “Record” LED D5. (Leave the leads as long as possible)
56. Install the green “Play” LED D6.
Let’s move on to the installation of the
microphone. Once installed, the case of the
microphone cartridge is at electrical ground so
extra care is needed with this installation.
57. Bend the two leads of the MIC1 cartridge
as per diagram taking care that the leads do
not touch the chrome case of the cartridge.
Keep the leads as long as possible as the
cartridge will sit up off the circuit board by
approximately 1/8”.
58. To ease the mounting of the microphone,
first melt a bit of solder onto the two solder
pads on the board. Now the cartridge can be
D6
D5
Leave these leads
as long as possible
PC Board
(+)
(-)
(+)
(-)
