HiFiMAN Shangri-La Jr Manuale d'uso - Pagina 17

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The Bias Adjustment

(The controls are on the underside of the amplifier under a cover panel.)

Turn on the amplifier for 10-20 minutes.

•

Set the volume to 0 and disconnect headphones and audio inputs.

•

Connect TP5 with the black probe of a multimeter and measure the DC voltage of the TP1-TP4

terminals in turn. It should read between 5-10V. If the deviation is too large, please adjust the

potentiometer TP1, and then repeat for TP2 – TP4 until the voltage to ground is equal.

Once completed, please wait 10 minutes and test each channel again to ensure voltage stability.

•

Place the cover back onto the amplifier and turn off the power. You may then reconnect the

audio inputs and the headphones.

* Should you find anything unusual or are not able to replace/adjust the 6SN7 tubes, please

contact your local distributor or HIFIMAN customer service.

V2-2

TP5

GND

Bias voltage regulation For 6SN7(0-5V)

Ground (GND)

V2-1

TP4

TP3

L+Left Positive

L-Left Negative

R+Right Negative

The Bias Adjustment

V1-2

V1-1

TP2

TP1

R-Right Positive