Pioneer GR-209, Service Manual

Page: 7 / 14

GR-209
7
A
B
C
D
5 6 7 8
5 6
7
8
Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST".
C
IC1B
LA6458S
IC1A
LA6458S
INPUT BUFFER
AMP. OUTPUT
(EQUALIZER OFF)
GRAPHIC
EQUALIZER
GRAPHIC
EQUALIZER
INPUT
BUFFER
AMP.
INPUT
BUFFER
AMP.
GRAPHIC
EQUALIZER
INPUT
GRAPHIC
EQUALIZER
INPUT
GRAPHIC
EQUALIZER
INPUT
EQUALIZER
OFF / ON
EQUALIZER
OFF / ON
OUTPUT
GRAPHIC
EQUALIZER
OUTPUT
V
EE
V
CC
GND
V
EE
V
CC
V
EE
V
CC
V
CC
GND
GRAPHIC
EQUALIZER
OUTPUT
GRAPHIC
EQUALIZER
OUTPUT
GRAPHIC
EQUALIZER
OUTPUT
GRAPHIC
EQUALIZER
OUTPUT
GRAPHIC
EQUALIZER
OUTPUT
VR1-VR14 : 01110203-230
GRAPHIC
EQUALIZER
OUTPUT
0
0
0
+12
0
0
0
+12
-12
+12
-12
0
0 0
0 0 0 0 0
0 0 0 0 0 0 0 0 0 0
+12
-12
0
0 0 0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
1/2
EQ PCB
C
2/2
EQ ON/OFF PCB
C
R36
6.8k
6.8k
VR8
C19
R6
6.8k
R7
6.8k