WhitakerAudio 60 W Stereo Power Amplifier, User And Assembly Manual

Page: 58 / 154

58
WhitakerAudio
5.4.6 Install Transformers
The chassis is shipped with the output transformers and power supply transformers packaged
separately. This is a precaution to avoid damage during shipping due to the weight of these
components. As the transformers are installed, the chassis will become quite heavy. Use the side
handles to move the chassis. It may be useful to have a second person assist during the following
steps.
In order to reach the PWB terminal posts, the lead length on the transformer wires is critical.
As typically supplied, the leads should reach their respective posts. To avoid the possible need to
extend one or more of the leads, do not trim the wires from the transformers until they are to be
connected to the PWB.
– Locate right channel output the output transformer (T1). Install using the #6 hardware
provided, carefully guiding the leads through the holes in the chassis. Be sure to include
the grounding lug on one of the rear mounting pads. Route the grounding wire through the
chassis along with the transformer leads. The speaker leads (yellow, green, white, black)
should face to the rear of the chassis.
– Locate left channel output the output transformer (T1). Install using the #6 hardware
provided, carefully guiding the leads through the holes in the chassis. Be sure to include
the grounding lug on one of the rear mounting pads. Route the grounding wire through the
chassis along with the transformer leads. The speaker leads (yellow, green, white, black)
should face to the rear of the chassis.
– Mount relay RYL51 using the #4 hardware provided. Use the chassis layout drawing
(Figure 5.5) as a guide. Orientation of the device is not critical. Be careful to not over-
tighten the mounting nuts. The tabs on the relays are somewhat brittle and can break under
excessive pressure.
– Locate power transformer T51. Install using the #6 hardware provided, carefully guiding
the leads through the holes in the chassis. Note that one bundle of leads is smaller than the
other. Route the smaller bundle through the chassis opening closest to RYL51. Be sure to
include the grounding lug on one of the rear mounting pads. Route the grounding wire
through the chassis along with the transformer leads.