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Specifications, What is it, Usage – Flight of Harmony Power v1 Bare-Bones User Manual

Page 3: Input connections, Output connections

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Specifications

Module width

10 h.p.

Input voltage

12VAC

Maximum current output

I

V+

= 1A

I

V-

= -1A

Output voltage

±12VDC

What is it?

This one is pretty straightforward: a power supply for your modular

synthesizer rig. No sweet spots, no easter eggs, it just makes juice.

POWER was designed with portable racks in mind –– shallow depth,

reduced weight, and keeping the mains transformer outside of the case to eliminate

related noise and heat –– but it can be used to supply any compatible system.

Usage

The standard AC wall adapter (if you purchased the standard unit) is

rated for 1 Ampere (A. K. A. 1 Amp, 1A, 1000mA), as is the POWER module

itself. For best performance – and this applies to ALL electronics, by the way – you

should never run POWER at its maximum rating. A 60% load (600mA) is the

practical limit for best performance.

If you need/want to run it up to 75% or 80%, a greater capacity

adapter is needed to maintain performance. Adapters get hotter as more power

is drawn from them, which increases the internal resistance and thusly reduces the

performance. A 1500mA rated adapter is recommended.

The adapter plug must be a 2.1mm x 5.5mm x 9.5mm barrel-type plug.

Input Connections

AC jack: CN1 is for the AC adapter jack. Tip wire to the top pin, sleeve

wire to the bottom pin (as shown in fig. 1).

Power switch: CN2 is for the power switch. When the switch is turned

ON, pin 1 is connected to pin 4, pin 2 is connected to pin 3.

Output Connections

LED+: From the front side, this is the header next to R3 and is the +12V

LED (red). Anode (longest leg of the LED) to the top, cathode (shortest leg of the

LED) to the bottom.

LED–: From the front side, this is the header next to R4 and is the -12V LED

(yellow). Anode (longest leg of the LED) to the top, cathode (shortest leg of the LED)

to the bottom.

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