Hafler DH-200 User Manual download pdf (Page 12)

The power transformer supplied in

DH-220

amplifiers sold in

the

lJSA

is intended for 120 volt, 60 Hz operation only. For use

in other countries, a multi-voltage transformer is available at

higher cost. It has dual tapped primary windings which can be

arranged in various series-parallel combinations for 100,

110,

120,

200,

220 and 240 volt

or 60 cycle AC mains. The

schematic diagram details the wiring combinations which are

represented

pictorially here.

Note that a separate 2-lug terminal strip is required when the

multi-voltage

transformer is used. This is supplied in kits which

include the special transformer. If the amplifier is operated with

200

to 240 volt tines, the 7 amp line fuse which is supplied should

be replaced with a 4 amp

Slo-Blo

type fuse.

VOLTAGE CHART

measured

with 120 volt line, no signal. with respect to the ground buss between the two capacitors in the power supply.

62.6

62.1)

0.88

63.0 62.0

1.54 Q401

1.0

65.4

-62.6 -62.0 -0.37

-1.27 -0.6

1.54

Q402

0 1.0

65.4

-0.32

0.22

61.8

QlO

-63.0 -62.0

Q403

-0.8 -65.4

-0.32

0.22 61.8

Q11

-63.0 -62.0 -1.35 Q404

-0.8 -65.4

0.8 0.22

-62.0

Ql2

1.0

1.54

65.0

0.8 0.22

-62.0

Q13

-0.8 -1.35 -65.0

63.0

62.0 0

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 20 21

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Hafler DH-200 User Manual Page 12

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