Item: Sony WM-DD30 Capacitor upgrade kit
With Sony WM-DD30 Capacitor upgrade kit you can replace replace old aged electrolytic capacitors and upgrade bass frequency response.
Capacitors need to be replaced to improve sound quality and to prevent damage from leaked electrolyte or shortcut in the circuit. Moreover, this kit includes capacitors that will improve bass frequency response. With proper values used, the frequency response will be flat.
Buying this kit will save you a lot of time searching for correct capacitors of correct dimensions. The capacitors included in this set are obtained from trusted sources. Capacitor brands are Panasonic, Nichicon, Rubycon, Elna… In case of tantalum capacitors, only special high reliability capacitors for automotive purposes are contained.
Get your spare parts to be able to fix your cassette player. Check our General Repair Instructions to find basic information about tools and skills needed to repair your player.
Unlike modern electronics, Sony WM-DD30 was built to last for decades. However, even this player contains some parts that deteriorate and you need to replace them. To fix it, you will need to perform some routine tasks, like replace rubber parts, do cleaning and lubrication. Finally, you should adjust and check azimuth, output level and speed. Read our Instructions section to learn more about repairs.
Cannot find your part here? First of all, try to find it using our search form. If you cannot find it anyway, then measure dimensions of your part, visit appropriate shop category and choose part that has dimensions similar to your one. Still cannot find it? Use our inquiry form. Before you contact us, rather check other sources of useful information, first. We cannot guarantee to answer all technical questions because of time restrictions.
Most probable reasons of cassette player failure
- Aged belt – needs to be replaced, there is no other help.
- Pinch roller – clean it well with IPA. If it doesn’t help, then you need to replace it.
- Corroded battery contacts – clean them well
- Volume pot oxidized – there are special sprays for that purpose. Apply only small drop, do not spray everything
Other: leaked capacitors, cracked plastic parts, old grease and oil turned into glue, dirty switches, dirt inside player, worn head (can be lapped), faulty electronics, damage caused by leaked battery, dry motor bearings
After each repair of cassette player, speed must be adjusted!
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