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Kenwood PD8-20 Service Manual page 28

Constant-voltage current power supply
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CAUTION:
CC operation — —- — —-
SCHEMATIC DIAGRAM
*1 X76-1250
fi
¥"] p35
+2.49V
1/4W
R34
ISKFZ|
aw
R4
I5KFZ
(+)SUPPLY
VR2
500
V2
VR3I°
10K
P204-6
O
GND of current
meter on the
DIGITAL
GND POLARITY
(~)SUPPLY AUTO-ZERO
c3l
Ni
G3 A3 c3 Gz
osc!
\1/4W
VR32
500
R5
IOKFZ
>
2
front
i
=
re
ront
panel
-
5
z
P204-5
= + — O )
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/
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8
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/
40KHz
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Q
P3-2+0
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8
thers
s
PD35-XX
0.36V
ie
es
a
eee
J
x
igh
PDI8-xXx
1.8V
mmm
oo
|
————
=
——o
:
£818 393} .0.3v
Pelkey
Coen cc
ee
eer
an Se
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=
a
ire
=
P204-1
=
P204-2
P204-3
e
bass
4
P4-|
ue
P4-2
ems
re
ee
ees
eee ee
ee ee ee ee
ee ee
DI~ 4,32 ~ 34: GL-9D03D
D5,35
"LT-9002D
UI,3!
: TSC7IO7CPL-A
U2,32
'LM336Z-2.5
Refer to table 1 for * point
CV operation
a
RIO
x
1:
2)
——
Sa
esa
eee
a
ey
0201,202
:SIVB6O0
U201,202 : LM79LO5ACZ
ne
am a es
Note:
Refer to table 1 for * point.

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