20 Most Recent Aiwa HZ-WS2000 MP3 Player - Page 3 Questions & Answers

There is likely a small battery on the motherboard that saves the last setting. The equivalent of the BIOS Battery in a computer. It probably needs replacing. No Service Manual on file :>( https://www.google.com/search?q=aiwa+amd-218+service+manual+pdf ..

Sounds like the speaker wires shorted and now the output stage is damaged and needs repairing.

https://www.manualslib.com/products/Aiwa-Xr-M75-159418.html

Find out, where the Fuses are ? if outer power source is okay,some fuses are hidden under some cover or inside the box .Replace fuse with the same value if found burnt.

Unfortunately, no one knows for that model apart from the maker. It is a discontinued model. https://www.google.com/search?q=How+many+watts+is+a+aiwa+nsx-v1500 ..

You would only get that information from a Service Manual https://www.google.com/search?q=Aiwa+XT-8000+service+manual ..

ManualsLib has the manual here: https://www.manualslib.com/products/Aiwa-Cx-Nma845-5886493.html . SearsPartsDirect also has the manual here: https://www.searspartsdirect.com/manual/1m0bt3vgnd-001547/aiwa-nsx-ma845-compact-stereo-system-parts . Note: the system model number is NSX-MA845; this includes the front, center and surround speakers. The CD stereo cassette receiver is CX-NMA845. I hope this helps. Cindy Wells

Could be due to component failure in the audio circuits

low voltage from power board or transformer

possible on mute

bad power transformer or board

Some guesswork here. If the remote control is specific for the receiver, it should work without any set up required. Just any old Aiwa remote control may not have the necessary code.

It needs cleaning and adjusting. The lubricant has dried out.

check first power supply

Probably something else. The buzzing is typical of an open circuit input "receiving" radiated 50/60 Hz from nearby mains wiring. An alternative source of buzzing is the 50/60 Hz mains breaking through into the audio due to failed smoothing and filtering in the power supply. Capacitors that have been unused for quite a while can lose condition and fail when put into use again and this might have been the cause of the thump/thud/boom you noted. I doubt it is the cause but it is very unwise to operate an amplifier without a full complement of speakers unless the volume is kept at minimum...

The tape player portion is defective, though new. Many of the site moderators have had that experience.

Download a service manual from google.

check more slotjk.com for your solution

You would have to open the unit and check for signal right before headphone plug.