Another update:
I did a lot more reading on here, mainly the threads about no power at all. First thing I did was check my fuses on my power board for continuity. I don't quite know what that means, and I'm not sure that I did it right, but here's what I did:
- Left the fuses on the power board
- Set my DMM to my 200 ohms
- Touched one lead to the metal end on one side fuse, and the other lead to the other metal end on the other side of the fuse
Both fuses measured between 0.2-0.5 ohms. From the other threads I read, I heard the two possible options were either 0 ohms or infinite. Is 0.2-0.5 ohms "close enough" to 0? Or does this indicate the fuses are bad?
I also found this post from PlainBill:
https://www.badcaps.net/forum/showpo...5&postcount=15
Originally posted by PlainBill
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If so, I'm not sure how to identify which chip is the reset controller. Based off the pictures I've seen in the other threads, I see a lot of 3 pin chips (1 on one side, 2 on the other) on my logic board. Once I know where the reset controller is, I'll certainly try either removing it or the shorting out trick you guys have previously mentioned to other users here.
Finally, I was also able to locate the service manual for the 245BW and I attached a screenshot of the "No power" troubleshooting section. At step 1, I did not get 5V at pins 3, 4, or 5 of IC705.
The IC705 chip is an AnaChip AP1501 "150Khz, 3A PWM Buck DC/DC Converter", and I downloaded the datasheet:
http://www.alldatasheet.com/datashee...IP/AP1501.html
I'm at work right now, and didn't write down the exact voltage measurements of this chip from last night, but I do know it was somewhere between 2V-3.5V for pins 4 and pin 5. To measure the voltage on pins 4 and 5, I put the black lead on pin 3 (ground) and then the red lead on pins 4 and 5. Was that correct?
The flowchart was informative, but it would be nice to know what IC705, IC703, and IC310 do. I was able to locate IC705 (and find it's general description) and IC703 (not sure what it does though) on the logic board, and neither of those look like a reset controller. When I get home, I'll try to locate IC310. Is it possible that IC310 is the reset controller?
According to the troubleshooting flowchart, the lack of 5V on pins 4 and 5, I should check the SMPS, like PlainBill suggested. Since I've replaced all the caps on power board, and it seems to be functioning when it's the only thing connected, that's what lead me down the reset controller path. Was this a reasonable deduction? Or is it an open resistor on the power board? I posted some of the Ohm measurements of the resistors in the area of the SMPS controller in my previous post, but I don't know if these values are "normal" or bad. I've been trying to understand the STR-A159 datasheet to try and figure out which resistors in the diagram match with the actual resistors on the power board, but I've only been able to guess at a couple.
I feel like I'm starting to get all the various puzzle pieces to understand the problem, but not quite enough knowledge to actually complete the puzzle.

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