Quote:
Originally Posted by Zetr0
--- its entirely possible that some capacitor leak may of damaged the pad (and or) track from PIN 21 (Blue-Out) from the CXA1145 - so perhaps an inspection - continuity test and solder re flow might help here.
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That's what I think as well. I recapped this board some days ago and even on the side around Pin 13-24 I noted some heavy verdigris due to leaked 10 μF capacitors but trying to resolder this side of the chip didn't help.
Here are my results of the resistor tests:
R231C: 0,991 kΩ
R232C: 11,8 kΩ (instead of 33)
Board Backside:
R233C: 150,1 kΩ
R234C: 74,9 kΩ
So at least R231C, R233C and R234C should be okay but there is no connection from one of them to Pin 21 of the CXA1145M. Instead I get a connection from Pin 23 to the 1 kΩ resistor. Also I'm a bit confused of the low value of R232C. There are no labels on the board for this resistors, maybe due to lack of space? Did I measure the right ones (see picture)?
Also I couldn't figure out how to test the transistor and voltage on Q233. As I'm not so familiar with circuit diagrams like with the PCB-Explorer on A1200, could you mark the both measure points where I have to test the voltage please? You can do it with the pic attached in this post.
Would it be possible to contact you via skype or elsewhere for better help in case that I have no luck here?