OCXO/TCXO installation for OPPO 103D and 105D

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1. X20: 27 MHZ : HDMI 1 and Darbee processing section.

 

 

Remove X20, C998, C999 and R900

 

 

 

 

 

 

 

 

 

 

2. X2 27 MHZ : CPU section.

Remove X2, C140, C19 and R61 and R33

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3. Using thin HF wires to designated position. ( clock and Ground ). the wires should be twisted for cancelling EMI interference.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4. Get the DC power ( 6-8 V) from linear power module and connect to the input of TCXO module. the wires should be twisted as shown in picture.