BBK SP550S, Руководство по обслуживанию

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5.1CH volume and level adjustment incorporate IC PT2258 and realize the standby and mute
functions.
CPU incorporates IC AT89C2051.
Small signal amplification and amplified LPF incorporate IC NJM4558.
Power amplification of L, R, SL and SR channels incorporates power IC TDA7370B.
Power amplification of the C channel employs power IC TDA2003.
Power amplification of the SW channel employs two LM1875 to form BTL.
Status display employs a LED digital tube, displayed range: 0~16.
Full function remote control.
Square power transformer, bridge and full wave rectifying circuit.
Satellite speakers employ plastic body. Subwoofer speaker's body employs xyloid MDF
construction with PVC cover.
Satellite speakers employ 3-foot wide frequency band high performance unit.
Subwoofer incorporates 8-foot aluminum audio coil with dual magnetic circuits exclusively for
the subwoofer unit.
All-in-one flat radiator board with long radiator sluts for excellent heat radiation.
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SP550S SERVICE MANUAL
SP550S FEATURES