The consequence is that the associated IC’s current becomes unstable, and causes the TDA7376 output amplifier and / or associated copper traces around the IC’s, to burn. For example, 1uF capacitors showing ESR of 20-30 Ω, 10uF capacitors showing ESR of 10-17Ω. The cause of the problem is massive and widespread failure of all the Chinese SMD capacitors – around 40 of them. Generally, they are able to be switched on, and the display responds to the commands of the Remote Control.
#Bose wave awrcc5 series
The normal symptom of this series is weak sound or no sound. These WMS units have the front-loading CD player.īose refuses to release Schematics or Service Manuals, however, that is not a problem for experienced ethical technicians to reverse-engineer the circuits, and repair them to a higher standard than Bose’s own technicians (based on the questionable quality of the originally-installed Chinese parts).Īfter reading and understanding this document, any competent hobbyist or technician with good soldering skills may make his own repairs, with a high probability of success, without needing to feel captive to Bose’s facilities. Their parts quality is far below that of the original 1990’s Bose units, which were completely sourced and manufactured in the USA. These particular versions, manufactured in the 2000’s, are designed in the USA, but include a majority of low-quality parts sourced in China, which are the primary source of all the problems. This applies to the Wave Music System, Wave Music System II, Wave Music System III, in all AC voltage variations.
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