Playback equalizer calibration

[frpe12]

Hi all,

I searched in the different topics, but couldn't find any post about playback equalizer calibration, using R13 and R14 trimmers on board G.
Could someone explain how to proceed for the different speeds ?

Thanks to all.

[mampfi]

The R13 and R14 trimmers on board G are used to adjust the equalisation for the 19 kHz speed in accordance with the standard.
The equalisation settings for the other speeds are switched via this setting using fixed values.

A measurement tape recorded in accordance with the standard, with a frequency response of up to 20 kHz at -20 dB, is required for this adjustment.