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Schematic diagram | Phase 1: Installation of SMD components | Phase 2: Power supply components |
Phase 3: Micro controller and DAC | Phase 4: Audio frequency amplifier | Phase 5: Receiver; RF and IF |
Phase 6: QR2S |
 
Phase 1: Installation of SMD components

Install SMD components in the following order:

Capacitors
Bottom layer: C44, C59, C61, C69 (10 nF)
Top layer: C13, C42, C43, C57, C58, C71, C99, C100, C134 (0.1uF)


Resistors
Bottom layer: R34 (18 Ohms), R33, R35 (300 Ohms)



IC
U16 (DAC), U5, U6, U8 (ERA4X)



Diode, Varicap
Top layer: D1, D2 (BB208-3)

Next phase: Power supply components
 

Schematic diagram | Phase 1: Installation of SMD components | Phase 2: Power supply components |
Phase 3: Micro controller and DAC | Phase 4: Audio frequency amplifier | Phase 5: Receiver; RF and IF |
Phase 6: QR2S |
 

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