Ramsey Electronics FM25B, Assembly And Instruction Manual

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FM25B
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11
Inductors
ˆ 1 Shielded can inductor, 0.18 uH [L1]
ˆ 2 Pre-wound spring style inductors, 44 nH [L2,4]
ˆ
2 1 µH axial inductors (brown-black-gold) [L3,5]
Hardware, Misc.
ˆ 1 PIC 16C505 microcontroller IC (marked with white sticker) [U2]
ˆ 1 BH1415F Stereo generator IC [U3] Preinstalled!
NOTE: These surface mount parts may be pre-installed on your circuit board.
Check the solder side of the PC board for these parts.
ˆ
1 7.6 MHz crystal (thin shiny rectangle marked 7.600000) [X1]
ˆ 1 78L05 +5 volt voltage regulator [VR1]
ˆ 1 14-pin socket for U2
ˆ 1 LM358 Low Power Dual Operational Amplifier IC [U1]
ˆ 1 GAL5 SMT Amplifier IC (surface mount chip with 4 leads, 3 on one
side) [U4]
Preinstalled!
ˆ
1 Two pin jumper and jumper block [J1]
ˆ
1 ‘F’ type board mount connector [J3]
ˆ 2 3.5mm stereo jacks [J4,5]
ˆ 1 2.1mm DC power jack [J2]
ˆ 1 DPDT push-button switch [S4]
ˆ 3 DIP switches (8 pin dip with 4 sliding tabs) [S1,2,3]
ˆ 1 Whip antenna [ANT1]
ˆ
1 FM25B printed circuit board
ˆ 1 1/8” stereo to RCA cable
ˆ 1 AC125 12 volt DC power transformer
Required, not supplied
ˆ Line level audio source (such as a tape deck or CD player)
Case and Knob Parts
ˆ Top cover with drilled antenna hole
ˆ Bottom base tray
ˆ 4 - Short Phillips Head Screws
ˆ 2 - Long Phillips Screws
ˆ Front and Rear Plastic Panels
ˆ Front and Rear Labels
ˆ 4 - Rubber Feet
ˆ Appropriate Knobs for Kit
Required Tools
ˆ Small Phillips Head Screwdriver
ˆ Pen or Pencil
ˆ Sharp hobby knife or hand held paper punch
ˆ Ruler at least 6 inches long
ˆ Multimeter for voltage adjustment