Text preview for : Boss RT-850 Service manual, repair schematics, online download.pdf part of



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JK0200930G WA1 JK0200930G
CON5P/ANGLE
1
C220 C120
100/16 100/16
JK1BP2.2/50
C101
JK1 BP2.2/50




C201




R220 R120
1W100 1W100
3K3
R121




3K3
R221




2K2




C202
2K2




R201
R101




R223 R222 R122 R123
470P 1/4W1K 1/4W1K 22K
RT850-PRE




22K
C102
R202 VR1 470P VR1
8K2 B20K B20K
R102
8K2
SCHEMATIC DIAGRAM




SW2 SW2
R202A R102A
20K




2C2P 2C2P
R103




20K




1K2 1K2
R203




100mV-2V 100mV-5V
R205 2V-8V R105 2V-8V
1K 1K
22P
C203
22P




R10M
C103




470K
10K
10K




R204
IC10




R207 R107
R104




IC10
UPC4570




33K 33K
UPC4570




R208
510
R108
510
1K
R130
33K
R131
B50K
VR2
R132
33K
B50K




C131
333M
104B
C132


IC11




C133
1K
KIA4558S R133




104B
VR-R R1R
5K 180
1K
R134




REMOTE CONTROL
2C2P
100
R110




2C2P
SW3
R109
100K




24K

150K
R153
R154
C150
153M
IC15
C152 R151




KIA4558S
473M 68K




C151
153M




150K
R152
R115
47K




IC_8



IC_4
1




-15V
+15V
GND
MONO