All 3 power on ! But no sound. Volume up/down do nothing. Overall decent condition for age,selling as is The Marantz PM520DC, st521 tuner and sd420 cassette deck combo deal is a vintage audio amplifier with a Marantz ST521 tuner and SD521 cassette deck included. This classic piece of audio equipment is known for its quality craftsmanship and performance, making it a desirable choice for audiophiles looking to enhance their vintage audio setup. The Marantz brand is well-known for its high-performance audio products, and this PM520DC model is no exception, promising excellent sound quality and durability for music enthusiasts.
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