68kMLA Classic Interface

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Need guidance on Classic II repair

Posted by: robrsd on 2018-08-21 08:39:43 Excellent found them, thank you.

Posted by: sixsevenco on 2018-09-23 11:49:40 I'm still having some problems with my Classic II.  After replacing DP3, DP4, CNY17G-3, and TDA4605, everything was working perfectly for a few hours.  Voltages were rock steady.  After leaving the computer on for a few hours, voltages would start to drop.  I'd work on it some more, and voltages would return to normal only to drop after a period of time. I've decided to replace all of the other capacitors on the analog board: CF1 CF2 CF3 CF4 CL1 CL11 CL2 CP3 CP34 CP37 CV2 As I was removing these capacitors, I noticed that the RF2 resistor is chipped.  I am not sure if the fact that it's chipped will cause me any problems, but I would like to replace it.  I have really tried to teach myself how to read the markings on the resistor, but I don't fully understand them.  I would be most appreciative if someone here could help me identify a suitable replacement on mouser.com.  The markings are: A (or is it a delta symbol) 1W 202G 16 I've attached pictures for reference.  Please help. 🙂 🙂

Posted by: sixsevenco on 2018-09-23 12:02:26 Ok, so right after my last post, I remembered that my multi-meter can test resistance.  I hooked it up, and this is what it is showing.  I'm thinking that the resistor is functioning properly despite being chipped.  Thoughts?  Should I still replace it?

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