Mark Levinson N28 manual Optional load Component

Internal adjustments: cartridge loading

Cartridge loading settings (high-gain option)

Cartridge loading settings (low-gain option)

Internal adjustments: optional load terminals

Terminating the optional load

The high-gain and low-gain phono options offer internally selectable cartridge loading via four single-pole miniature rocker switches, one for each channel. The high-gain and low-gain options have been factory-adjusted at 825Ω and 47KΩ , respectively.

If you wish to change the factory-adjusted cartridge loading, see "Making the internal adjustments;" refer to the table below for the proper switch positions for each load setting.

Switch	30Ω	100Ω	825Ω	10KΩ	Optional
#1	On	Off	Off	Off	Off
#2	Off	On	Off	Off	Off
#3	Off	Off	On	Off	Off
#4	Off	Off	Off	Off	On
Switch	825Ω	10KΩ	22KΩ	47KΩ	Optional
#1	On	Off	Off	Off	Off
#2	Off	On	Off	Off	Off
#3	Off	Off	On	Off	Off
#4	Off	Off	Off	Off	On

Resistance values other than those listed above can be accommodated via the optional load terminals. Load resistors can be inserted into these terminals, allowing virtually any load desired.

Optional load

component

Solder Solder

PC board

See "Making the internal adjustments;" refer to the "Cartridge loading settings" tables for the proper switch positions for the optional load.

Because the inherent input resistance (all switches off) is in parallel with the optional load terminals, use this formula to calculate the actual resistor needed:

R = 1/ (1/RD - X)

RD = Desired Resistance in ohms

X = 0.00002 for Low-gain Phono Option,

0.0001 for High-gain Phono Option

Note: We recommend precision metal-film resistors; see your Mark Levinson dealer.

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