I bought a JVC XL-Z1010TN CD player months ago on EBAY. Non-functional headphone output and variable level output problems were known and detailed in the auction description. When I opened the chassis, I found that a number of modifications had been attempted. Most were substitutions for larger value and/or quality capacitors (Rubycon and Multicap) and shielded DC supply wiring. There is one mystery mod that sticks out. My guess is that it is DC power supply related. There is a 5V regulator on one side and the inside of the box is potted. Any thoughts as to the function of the potted box? Have there been any documented mods for this player?
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Not to my knowledge, it's a fairly rare cd player but one of my favorites.
Mine has been running for twenty years with schotky diodes, AD 825 op amps and I've collected enough Optima 4s for the rest of my life.
It is a player that has a very Japanese character, it does not color the sound, it is very straight and pleasant.
Mine has been running for twenty years with schotky diodes, AD 825 op amps and I've collected enough Optima 4s for the rest of my life.
It is a player that has a very Japanese character, it does not color the sound, it is very straight and pleasant.
I spent some additional time looking at the mystery mod and discovered that it replaces the 16.0344 MHz oscillator circuit connected to IC150. Thie replaced circuit is comprised of a crystal, two resistors, and two capacitors. I will continue to look at the mod to see if more functions may be provided.