NEDSP900 Development Board
33
Addendum to PCB Model A07-001-10 (Issue:1)
Due to some tracking errors, two traces have been omitted on the PCB.
1.
The main omission is of the 2
nd
audio amplifier output to the Headphone/Speaker socket.
The affected PCB’s have all been modified as shown in the attached pictures below:
Wiring underside of the PCB
Connection to socket on the topside of the PCB
2.
If and only if adding any of the Balanced Microphone
amplifier
components and making use of
this facility, then the following modification needs to be carried out. This has not been
corrected as this needs the appropriate Balanced Input Amplifier components added to the
amplifier.
a.
Locate and identify R44, to be found on the bottom end of IC3.
