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Kenwood PD8-20 Service Manual page 31

Constant-voltage current power supply
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SEMICONDUCTORS
—1
ci
B1
e€
C (Hest sink)
ac
B
2SB633 (E)
2SA1175 (F}
2SB905
2SD613 (E)
2SC2785 (F)
2SD1220 (0)
€2
C2
B2
2SC3064
2SC3066
——
<—~
Ss
OuT
IN
D&
GND
2SA1106
28C2459 (GR)
2SK170
25C2581
uPC7915HA
2SK117
N
Sy /
8
OUT
E
GND
Cc
DTC124 (F)
LM308AH
DTC144 (F)
2SC2608
TRIM V* OUT NC
Ve
S
OUTPUT
wweut GND
LM79LO5ACZ
Ex
»PC7805H
TRIM—IN+IN
V-
NJM7815A
TLO82CP
OPO7DP
OUT4_
IN4 (+)
INS (+ }
THRESHOLD
OUT3_
GND
_IN4(~}_IN3 {-)
DISCHARGE
CONTROL
VOLTAGE
LJ]
eure
She
OUT2
ve
INT (+) IN2 (+)
NUJM555D
TLP521-1
OUTT
IN1.(-) IN2 (-}
LM339
MC14011BCP
BAL/STROBE
LM336Z-2.5
GND +1N—-1N V-
NJM311D

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