In this video I discuss how to repair a vintage PIONEER SX-535 Stereo Receiver that had a loud crackling noise coming from the right channel. I plugged a pair of SONY MDR-W501 headphones in and the right ear piece started to get hot. The symptom causes the speaker coil to overheat. The owner of the nice stereo had a set of STEREO VOICE speakers and the right side woofer speaker cone was completely seized because of the loud crackling noise that was present after the unit warmed up a bit. A few days after the right was fixed the unit returned with the same problem in the left channel. I replaced the 2SA726 transistor (Q1 & Q2) and the problem went away. I found the source of the problem using my oscilloscope and the schematic. Check out my other video showing the owner's operation manual and schematic diagram.
Pioneer SX-535 Stereo Receiver Repair - Crackling Sound from Right Channel caused Blown Speaker
on Monday, October 22, 2012
Pioneer SX-535 Stereo Receiver Repair - Crackling Sound from Right Channel caused Blown Speaker Video Clips. Duration : 5.78 Mins.
In this video I discuss how to repair a vintage PIONEER SX-535 Stereo Receiver that had a loud crackling noise coming from the right channel. I plugged a pair of SONY MDR-W501 headphones in and the right ear piece started to get hot. The symptom causes the speaker coil to overheat. The owner of the nice stereo had a set of STEREO VOICE speakers and the right side woofer speaker cone was completely seized because of the loud crackling noise that was present after the unit warmed up a bit. A few days after the right was fixed the unit returned with the same problem in the left channel. I replaced the 2SA726 transistor (Q1 & Q2) and the problem went away. I found the source of the problem using my oscilloscope and the schematic. Check out my other video showing the owner's operation manual and schematic diagram.
In this video I discuss how to repair a vintage PIONEER SX-535 Stereo Receiver that had a loud crackling noise coming from the right channel. I plugged a pair of SONY MDR-W501 headphones in and the right ear piece started to get hot. The symptom causes the speaker coil to overheat. The owner of the nice stereo had a set of STEREO VOICE speakers and the right side woofer speaker cone was completely seized because of the loud crackling noise that was present after the unit warmed up a bit. A few days after the right was fixed the unit returned with the same problem in the left channel. I replaced the 2SA726 transistor (Q1 & Q2) and the problem went away. I found the source of the problem using my oscilloscope and the schematic. Check out my other video showing the owner's operation manual and schematic diagram.
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