Crown D-75 - Page 61

NOTES:
1. CIRCUIT SHOWN STARTS WITH SN 200S, AND APPLIES ONLY
TO PC BOARD #9750 (MAIN BOARD) AND PC BOARD #9730
(OUTPUT BOARD).
2. 0105, 0205, D10S AND D20S ARE LOCATED ON THE MAIN
BOARD (SHOWN ON OUTPUT BOARD FOR CLARITY).
3. ALL RESISTORS ARE IN OHMS, ALL CAPACITORS ARE IN MI·
CROFARADS, UNLESS OTHERWISE NOTED.
4. OUTPUT PC BOARD #9730 CONTAINS COMPONENTS FOR
BOTH CH#1
AND CH#2, AND IT IS LOCATED ON THE FRONT
PANEL HEAT SINK ASSEMBLY.
5. LED 102 AND 202 ARE LOCATED ON THE OUTPUT PC BOARD.
S. SWI IS SHOWN IN STEREO POSITION.
7, THE BALANCED INPUT DOES NOT FUNCTION WHEN UNBAL·
ANCED INPUT IS USED.
FI
2.0.
120 VAC
50-400Hz.
R2
2.7
F2
2.5.0.
SWI
POWER
o
BlK/WHT
O.s.E _-"B",lU",E.!.../W",He"T_-<
WHT
RED
REo/YEl
RED
RED
RED/VEL
RED
TI
lEOlO1
IGREENV
R132
560
2w
Ql15
OUTPUT BOARD 9730
+30v---- __ --_--_4' I J1'2 .
0105
Q109
\',~'.
C119
,I
R1A.6
2.7
IW
TO HEADPHONE
JACk
QlO,
R128
,I
SW
RI29
"
sw
Q,O
I
Ll01 ~
rTc
D~ 06
'j._ ...... >--~JBc~
Qlt2~ ~
.30v----~--~---~k
L
I I
~I
I
~L
IREO! LEDIO}!]
~
I Dl01
1..51
1
01'5
I QII'
0"
III
.... ----.30V
I
~----r-------_+-~>----+GNo
I
L_
~------~-----+·30V
D-75 Power Supply Schematic
MI-270 sheet 1 of 3