Grundig RBX 1-RF Betriebsanleitung Seite 10

Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
NF-Verstärkerplatte / AF Amplifier Board
400 mV
P108
C144
+
FROM P404
LEFT CHANNEL
CONTROL BOARD 1U/100V
400 mV
C150
+
RIGHT CHANNEL
1U/100V
2 - 7
+V (+27.0V)
+27V C161
+
1U/100V
1 5
R108 0V 835-204-876
10 IC105
1k
LM3876
8305-204-878
0V
9
8 -3.5V 4
.47U/100V 1U/100V
R111
+ +
22K
C146 C162
-27V
-V (-27.0V)
R112
22K
R113 C125
K
22K
47P
+V (+27.0V)
+27V
C163
+
1U/100V
1 5
R122 0V
IC104
1k 10
LM3876
8305-204-878
0V
9
-3.5V
8 4
.47U/100V
.47U/100V
R163
+
MUTE
+ C164
C148
22K
-27V
-V (-27.0V)
R118
22K
T106
BC546B
R117 C130
K
-26.4V
22K 47P
(MUTE)
-27V
-V (-27.0V)
GRUNDIG Service
RBX 1-RF Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
7
9.5V
L101
0V
09238-170.01
3
R153
10
C126
22N
C127
22N
7
9.5V
0V R115
L102
09238-170.01
3
22K
R155
10
NF / AF
2 - 8
P103
TO LEFT
SPEAKER
K
P104
TO RIGHT
SPEAKER
K
C153 to be added
when not in use to use shunt
T104
BC546B
T105
BC546B
DCPROT
RBX 1-RF
20/01/97
GRUNDIG Service