Step 5: Install the Main Board’s Logic
R1 | 1K 5W |
R2 | 1K (brown black red) |
R3 | 10K (brown black orange) |
R4 | 3.3Ω (orange orange gold gold) |
R5, R6 | 100K 1/2W (brown black yellow) |
C1–C6 | 1uF |
C7–C9 | 100uF |
C10 | 680uF |
D1, D2 | 1N4148 |
D3 | Low power rectifier |
IC1 | 74HCT14 |
IC2 | 74HCT74 |
IC3, IC4 | UCC37321 |
IC5 | 7815 |
IC6 | 7805 |
T1 | Gate Drive Transformer |
T2 | Line Transformer |
FB1 | Optic fiber receiver |
J_AC | Clover connector |
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- C. Install capacitors C1–C6. They are all identical 1uF ceramic capacitors.
- D. Install capacitors C7–C10. These are electrolytic capacitors whose polarity is important. Be sure to match the white stripe on the capacitor to the stripe on the board.
- E. Install signal diodes D1 and D2. Note that these are directional components, and the stripe on the diode needs to match the stripe on the board.
- F. Install rectifier D3. Note that it is directional.
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- H. Install voltage regulators IC5 and IC6. The orientation of the component should match the silkscreen on the board.
- I. Install T1 and T2, the gate drive transformer and the line transformer.
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- K. Insert the ICs into their sockets. Ensure that the notch on each IC matches the notch on the socket, and double-check that the notch on the socket matches the notch on the board.
- L. Install J_AC, the power connector. Put a dab of glue under the part to hold it firmly in place.