Teac A-BX10 - Page 3

A-BX10/PA-B10
2 ADJUSTMENT
Bias Current Adjustment
Europe/UK Model:
1, 2x2 Jumpers are removed from P200 and P300.
2.4 x Bias current is measured as voltage across 0.22
ohms resistor between 1&2 and 3&4 on P200 and P300.
3. Adjust bias current to 4 x 18mV by turning R224, R229,
R324 and R329 slowly. |
~ Clockwise turning increase bias current.
4. Then put on lid and wait 15 minutes, then take off lid
and readjust to 4 x 20mvV.
_ 5, Place 2x2 jumpers on P200 and P300 again.
Canada Model:
1.
4.x
Bias
current
is
measured
as
current
in
F200,
F201,
F300,
F301
fuse
holders
(fuses
must
be
removed).
2,
Adjust
bias
current
to
4
x
82mA
by
turning
R224,
R229,
R324
and
R329
slowly.
|
Clockwise
turning
increase
bias
current.
3.
Then
put
on
lid
and
wait
15
minutes,
then
take
off
lid
and
readjust
to
4
x
91mA.
,
4,
Remember
to
place
fuses
again
after
adjustments.
MAIN PCB