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2B-LP POWER AMPLIFIER
SCHEMATIC
PRIMARY MAIN BOARD 2B-MB/4.3
PRIMARY
+47 Vdc
HOT
LOAD
Power bus board 2B-PBB Thermal
Neutral Breaker
Hot Thermal
Breaker
TL2 TR1 TL1 TR2
Primary BIAS
Phase 1
66Vct +47 Vdc
INPUT "M"
2A7 From Left Ch.
-47 Vdc
Ground - INPUT
Primary
Phase 2
Back board 2B-BB LEFT SPKR.
RED + OUTPUT
BLACK - LEFT Ch. SPEAKER
OUTPUT "M"
Binding Post OUTPUT
Connectors RIGHT Ch.
BLACK - INPUT "M"
RICHT Ch. POWER
RED + SPKR Output GROUND
POWER
Chassis GROUND
Ground
SIG. GROUND
+ INPUT
LEFT INPUT
RIGHT INPUT
+47 Vdc
SIGNAL
GROUND
OUTPUT
SIGNAL
GROUND
-47 Vdc -47 Vdc
This symbol indicates interconnection This symbol indicates interconnection via ALL CAPACITORS ARE IN MICRO
LABEL LABEL
via card edge conector. quick dis-connect tabs & sockets FARADS EXCEPT WHERE NOTED.
This symbol indicates interconnection via ALL RESISTORS ARE 1/4 WATT/1 %
LABEL EXCEPT WHERE NOTED.
soldered wires.
