BBK SP550S, Руководство по обслуживанию

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CAUTIONS
SP550S SERVICE MANUAL
There is high voltage inside this unit. Make sure to pull out the plug of this unit before
repairing!
There are many high voltage components inside this unit. Please pay attention to all
warnings and instructions marked on this unit to avoid electric shock!
Specifications of the replaced components must be the same as that of the original
components. Do not change the components' specifications to prevent risks!
C
ontents
1 SP550S FEATURES
2 CIRCUIT CONNECTION DIAGRAM & BLOCK DIAGRAM
3 DETAILED CIRCUIT EXPLANATIONS
10 THE EXPLANATION FOR KEY COMPONENTS
VOLUME CONTROL IC PT2258
CPU IC AT89C2051
POWER IC TDA7370B
POWER IC TDA2003
POWER IC LM1875
CAUTIONS
CONTENTS