ANK DAC5.1 Signature, Construction Manual

Page: 52 / 104

10.1 Wiring the PTL4 transformer to the Power Supply PCB
So once the Power Supply PCB is completed and the filament PCB have been completed we can
start with all the interwiring. This is where we will connect the components including the Mains
transformers, the Chokes, the 15K Shunt Resistor, etc to the Power Supply PCB.
Start with the PTL4 transformer located towards the middle of the chassis and identify the high
voltage wires.
Orange, Red and Blue/White: check these wires out on the PTL4 transformer sheet and you will
see they are 454V – CT - 0. Connect these to the Power Supply PCB as shown on the graphic.
They are all somewhat short lengths to connect, give yourself a little slack in case you need to
lift the board up later, an extra 2” of slack would be good or if you are an expert wiring guru
you can make your own decision.
Then hook up the 5V AC filament to the PCB – these will be the grey and brown wires and the
purple will be the center tap.
Figure 31 - Wiring the PTL4 Transformer to the Power Supply PCB
That completes the PTL4 transformer, Congratulations!
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