![JVC PC-V77 V77C V77J Portable Stereo Boombox Service Manual *Original* – Vintage Audio Store - Vintage Service Manuals, Stereo Brochures and Parts JVC PC-V77 V77C V77J Portable Stereo Boombox Service Manual *Original* – Vintage Audio Store - Vintage Service Manuals, Stereo Brochures and Parts](http://cdn.shopify.com/s/files/1/0497/1056/3477/products/image-8_d804f628-1e6d-49a1-8cd3-82601a02de6f_1200x1200.jpg?v=1618840989)
JVC PC-V77 V77C V77J Portable Stereo Boombox Service Manual *Original* – Vintage Audio Store - Vintage Service Manuals, Stereo Brochures and Parts
![Anyone know what this 3D button on the JVC PC-V77 does? Is it just a bass boost, or something special? : r/cassetteculture Anyone know what this 3D button on the JVC PC-V77 does? Is it just a bass boost, or something special? : r/cassetteculture](https://preview.redd.it/9887ew6dhq731.jpg?width=640&crop=smart&auto=webp&s=67122a902760061c578bcccb45924bc3a806fa6f)
Anyone know what this 3D button on the JVC PC-V77 does? Is it just a bass boost, or something special? : r/cassetteculture
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