Main board fault. Shorted component/s at its audio output section circuit. Most common fault is with its audio output transistors. If any one of them get shorted [collector to emitter short]; this kind of fault can occur. Check 2SD1510 / 2SB2510 transistor pair at this section circuit for short. If found shorted, check all the other components related to these transistors and make sure that all are good; otherwise, the replaced transistor too will get damaged in no time. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
Circuit diagrams of many popular brand TVs and other devices are given. Search the site by type in the "brand name" of your device, in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.
Unlike the budget stereo receivers now flooding the entry-level price points at dealers across the country, the Sherwood RX-4109 is designed and built in-house with the same quality and attention to detail we have been bringing to our audio gear for the last 50 years.
With 105 Watts RMS per channel, phono section, binding posts, a versatile remote control and switching for two pairs of loudspeakers, the only thing that bespeaks the word "budget" about the RX-4109 is its modest cost.
MSRP 179.95
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