Removing The Old Power Supply; Figure 8-Remove Hardware That Holds Power Supply Bracket To Chassis Floor - DYNACO PAT-5 Assembly Manual

state of the ON-OFF switch!
If the current is less than 50 mA then record the value of the current, and
move on..
If all the currents were within bounds, it is very likely that replacing the power supply
will cure your problems.
If the power supply voltages under load were too high, then it is also very likely that
replacing the power supply will cure your problems.
If the power supply voltages were too low, and the currents were too high, then you have
problems in the circuit boards of your PAT-5.
If you're confused, send email to dan@akitika.com to further discuss your symptoms.

Removing the Old Power Supply

The mechanical design of the PAT-5 Preamp makes removing the old power supply a lot
of work. Your soup bowl will come in handy again as a safe place to collect all the bits
and pieces you'll need to remove to change the power supply.

Figure 8-Remove hardware that holds power supply bracket to chassis floor

All of the following steps have the goal of removing the power supply and power supply
shield, allowing replacement of the old power supply with the new.
Prepare to remove the old power supply
Done? ()
Pull the Preamp's AC plug and wait 1 minute before going on.
Remove the two screws (one in each bracket) that hold the silver colored
power supply mounting brackets to the bottom of the chassis. Easiest access
is from the screws at the bottom of the chassis (Figure 8).
Remove the four side screws that hold the back panel to the bottom of the
chassis. (2 along each side, near the back, see Figure 9).
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