Avocet AV-100, Operating Manual

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AVOCET AV-100
5
Jumper Settings Only one jumper is located on the circuit board. This
jumper is used for production testing and field calibration.
The proper positioning for this jumpers is as follows:
Composite Bypass Jumper JU1 is used during production testing or
calibration to disconnect the tuning circuit from the
remainder of the audio circuitry. This is done in order to
inject test signals into the audio circuitry. Normally, the
user would not move this jumper, but in special cases,
this jumper can be used when a composite input is
needed in the AV-100. Contact the factory for
additional support on this application.
JU1 - Composite Bypass
1 2 1-2 Normal operation *
3 4 3-4 Factory Use only
*=as shipped from factory