Instruction manual

FM25A • 9
Hardware, Misc.
 1 6 MHz crystal (thin shiny rectangle marked 6.00) [Y1]
 1 38 KHz crystal (small silver cylinder with two small leads), taped to
paper. [Y2]
 1 78L05 +5 volt voltage regulator [VR1]
 1 78L02 +2.6 volt voltage regulator [VR2]
 1 7812 +12 volt voltage regulator [VR3]
 1 68HC705K1 Microcontroller IC (marked with white sticker) [U2]
 1 16-pin socket for U2
 1 18-pin socket for U3
 1 145170 Serial PLL IC [U1]
 1 BA1404 Stereo modulator IC [U3]
 1 FM25A printed circuit board
 3 RCA-style jacks [J2,J3,J4]
 1 DC power jack [J1]
 1 Horizontal push-button switch [S1]
 1 Small black mini push-button switch [S2]
 3 DIP switches (8 pin dip with 4 sliding tabs) [S3,S4,S5]
 1 Whip antenna [ANT1]
 1 12 volt DC power transformer
 1 Two pin jumper and jumper block [JMP1]
Required, not supplied
 Shielded stereo audio cables
 Line level audio source (such as a tape deck or CD player)
Case and Knob Parts
 Top Cover
 Bottom Base Tray
 4 - Short Phillips Head Screws
 2 - Long Phillips Screws
 Front and Rear Plastic Panels
 Front and Rear Labels
 4 - Rubber Feet
 Appropriate Knobs for Kit
Required Tools
 Small Phillips Head Screwdriver
 Pen or Pencil
 Sharp hobby knife or hand held paper punch
 Ruler at least 6 inches long
Optional Tools
 5/16” Drill