Fx-440 Master Component Index - Ramsey Electronics FX-440 Manual

FX-440 MASTER COMPONENT INDEX
The following pages were prepared to serve these purposes:
1. A general cross-reference for circuit study anQ servicing;
2. Additional help for parts sorting and identification;
3. An accommodation for experienced builders who prefer to
work out their own assembly sequences. (If you have ANY
questions or doubt about a part, refer to the specified
assembly steps and the schematic diagram.)
Key to Component Index format:
A.
Part designator number (e.g., C1, 012, Y2, etc.)
B.
r I [ I
(Experienced builders always double-check!)
C. Part value or manufacturer identification
D. Assembly step number (which also identifies general circuit
stage per the schematic.)
E.
Component function note (or space for your own note.)
Key to assembly step letter-number codes:
The letter code indicates the circuit stage(s) in the step-by-step assembly
instructions. The numeral designates the specific step. If you have any
question whatsoever about a particular part, please consult its assembly
step .
.----~~~~~~~~~~~~~~~~~~~~~---,
A: DC Power input
B: Receiver audio amplifier
CR: Receiver FM detector and squelch
DR: Antenna input, T-R switching, filters, RF preamplifiers
EF: VCO (Voltage Controlled Oscillator)
G: PLL Frequency Synthesizer
H: Diode Matrix, Frequency Programming
M: Microphone Amplifier and PTT
TC: Transmit Coil and RF Choke Preparation
TX: Transmit Buffer, Driver and RF Final
FX-440
Ref. 49