In SX Microcontrollers, SX/B Compiler and SX-Key Tool, PJ Allen wrote:

[quote="djh82uk"]
my cap says it's a 104 or 103[/quote]A 104 is 0.1uF; a 103 is 0.01uF.  So, which is it?  It's supposed to be a 0.01uF (103.)  That could be a problem, makes a difference.
 

[The "capacitor code" is the value in picofarads.  So, a 103 is 10 followed by 3 0's pF: 10,000pF / 10nF / 0.01uF]

 

[b]10K[/b].  So, they're both brown-black-orange?

 

If the circuit is disconnected from the SX pins you should measure the source voltage between the junction (R1, R2, C) and Ground or something is wrong (a bad contact in your breadboard, a bad cap.)

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