Figure 2 Block diagram of the audio wiring and associated DC controls
3 Initial Operation and
Adjustments
We suppose that power supply, tone generator and electronic keyers have
passed the previous tests and are in good working order. We further assume that
the organ is equipped with operating power amplifiers and speakers.
Only some of the connectors of the wiring harness G03 are to be connected at
this point in time. If in doubt, verify which ones are to be plugged in by rereading
chapter G.
3.1 Preparations
( ) Cut off a 100 cm (40")long piece of hookup wire (any colour). Solder an
alligator clip to one end and connect the other end to -15 V of the power supply
(together with the large number of blue wires).
This lead will serve as test wire to activate the various analogue audio switches.
3.2 Conventions and lnitial Conditions
A tongue tab is said to be "OFF" when it is in its upper position.
A rocker tab is considered "OFF" when its top is pushed in.
A drawbar is "OFF" when it is pushed home.
Turn off all tongue tabs and rocker tabs.
( ) Push home all drawbars (including master controls).
AM 079 (Part)
5
