Do you have a question about the Fisher CA-857 and is the answer not in the manual?
Details on RMS power, bandwidth, and distortion for the power amplifier.
Covers frequency response, input sensitivity, and impedance for the preamplifier.
Detailed steps for adjusting the idling current for optimal amplifier operation.
Block diagram and pinout for the LA 6458 DS Phono Equalizer IC.
Block diagram and pinout for the LA 6458 S Pre Amplifier IC.
Block diagram and pinout for the LB 1403 N LED Meter Drive Amplifier IC.
Component lists for Phono EQ, Function LED, Pre Amp, and Function PCBs.
List of semiconductor components across various PCBs.
Component lists for Semiconductors and Main PCB Assemblies.
Component lists for Semiconductors and Resistors across PCBs.
Component lists for Power Switch, Bias, Transistor, Terminal, and Speaker Out PCBs.