I added a TentLabs XO2.2
low jitter clock and a separate power supply for it to my exposure 2010S CD player
. The process was very straightforward - see the pictures.
The exposure 2010S CD player has an easy internal layout, where most of the components sit on a large PCB.
The original clock is based on the 74HC04N chip located in the middle of the PCB, to the left from the three white power connectors connecting the toroidal transformer. A close-up picture shows the crystal resonator wrapped in a black heat-shrink tube, two 33pF capacitors on each side of the resonator (those with black dots on top), and a resistor R75, which also serves in the circuit. The oscillator is built on the single invertor (pins 13 and 12 of the IC).
The original clock is generating 16.9344 MHz at 5V CMOS levels.
To install XO2.2, I removed the resonator and the capacitors, leaving the resistor in place. I connected the signal cable from XO2.2 to the...