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Pioneer BP-780 Service Manual page 14

Graphic equalizer/amplifier

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POWER
AMP.
P. C. BOARD
C128
100/16
| ci29
s
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0.22
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74v
| 12
.
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VOLUME
P.C. BOARD (1/73)
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VRIO4
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VRIO6
VRIO7
VRIO1~1O7:
GRPHIC
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20k(G)
20K(G)
20k(G)
20k(G)
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cSH-085
1c 302
oe
301
ae
NJM45585
or
:
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|
7.8v
cana
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100
BOOSTER
TA75558S
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$0k (G}
330 3.7 Vv
1.5
1c102
6 is
3.1v
R128
j R129
10k
NJM4558S
or
TA755585S
C306
cso = Power Amp
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C228
C229
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or
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VR2014~—
207: GRAPHIC
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ccw-020
et
VOLUME
P. C. BOARD
(2/3)
0319: S5277B8 or
SRIK 2
Regulate
2
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or
7.8V 2.
2SD1292—-R_
14.3v
R304
2.2k
100
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D310: $527786
or
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(86-254
C305
100/710
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$2-3
0.8v
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2.7Vv
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11.3v
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_ SWITCHES:
.
~ @MAIN P.C. BOARD
DI0S~ 107:
D103, 104:
D101, 102:
0201,0202:
0203,204:
0205 ~ 0207:
.
PL3O1,302:LamB
| w2q2RP
LNa42yYP
LN342GP
LN342GP
LNa42yYP
LN242RP
$1 ' MODE SWITCH:----------- BOOSTER -COMPO- PRE
$2:
DEFEAT
SWITCH----:---ON~
OFF
CEL
7'
TO FRONT
SPEAKER
<a
L-CH
TO REAR
SPEAKER
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L-CH
<i
TO FRONT
SPEAKER
<i
R-CH
TO REAR
SPEAKER
LD
R-CH
BOOSTER
+8
<=
acc
+8
+14,4V
ILLUMI
+8
Cop
+ 14.4V
GNO
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