Warning If the polarity of the caps is wrong they will explode!
It is better to twist all cables that have to be soldered to the same point
together before tinning them, it makes soldering a lot easier. Foresee cables
to the boards as well.
Once the power-supply is OK, we fix in both boards adding thermal paste to
ensure maximum heat-conduction with the chassis.
We can now connect the + and - power-lines to the boards (don't switch them
or you'll kill the output-transistors!) as well as the LS-output cables to the red
LS output-plugs.
It is no luxury to use some Raychem (or other) Heat Shrinkable Tubing for
insulating the +, - and output connections, as there are large voltages
between them.
• Connect the “+” and “-“ leads from the power-supply to the boards
• Connect the LS-outputs of the boards to the circuit-boards
• Connect the inputs to the RCA-plugs with shielded cable
• Install the boards using new Heat Sink compound
• Re-assemble the amplifier is reverse order
Before connecting mains-voltage we should check all cabling again with the
Ohm-meter. We should also re-check that each channel uses 120 .. 130 mA
in the + and the - power-line and that there is less than 0,01 Volt DC on the
outputs (typically 0.007 or less Volts).
If it passes these final tests we can rebuild the unit and finally connect the
speakers and the preamp and... Enjoy the music ;-)
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