Cayin CS-88A Kullanıcı Kılavuzu - Sayfa 10

Amplifikatör Cayin CS-88A için çevrimiçi göz atın veya pdf Kullanıcı Kılavuzu indirin. Cayin CS-88A 17 sayfaları. Vacuum tube integrated amplifier

Top Panel

V2、V4:6SN7

A1、A2、A3、A4:KT88/EL34

Turn the Tube SEL. to position KT88 on the

rear panel, if you are going to use KT88 Tube.

Turn the Tube SEL. to position EL34 on the

rear panel, if you are going to use EL34 tube.

V1、V3:6SL7

Bias Adjustment (A1、A2、A3、A4)

Used to adjust bias of corresponding power

tube(A1、A2、A3、A4)

Bias Meter

Used to monitor the working current of the

power tube.

◆ Be careful of the high temperature of the tubes during operation.

◆ Please replace the power tubes after switch off in 20 minutes, and follow the suggetion to unplug the

inset the tubes.

◆ Power tubes must be matched for well function.

◆ Forbidden to make the pointer of the bias meter out of the A zone when adjusting the power tube.

◆ Make sure the supply voltage is 230V before bias adjustment.

◆ Even under normal working state, the point of the bias meter could move for the voltage fluctuation.

4 5

Bias adjustment for the power tube:

Turn the Bias Selector Switch to its opposite direction

without releasing it, adjust the corresponding Bias

Adjustment Swith with flat screwdriver, and inspect the

Bias Meter on the top panel to make sure the pointer

keeps in the certer. Bias adjustment for A1.A2,A3 and A4

are the same.After all have been djusted, do it one more

time to make sure all the bias level of A1,A2,A3 and A4

are the same.

Sample of bias adjustment for power tube A1:

1. Turn the Bias Selector Switch A1 to its opposite

direction without releasing it.

2. Adjust the corresponding Bias Adjustment Switch A1

with flat screwdriver until the pointer of the bias meter

keeps in the center. The same for A2, A3 and A4.

NOTE

Diagram 4

Bias meter when not working

Diagram 5

Bias meter during working

Note: When working normally,

the pointer should stay within

the A zone, still , it would move

for the voltage fluctuation.