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Post by mastertech on Sept 25, 2017 13:53:28 GMT -5
How accessible are the pins on ic1 and ic2 (output ics) to test while power on?
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Post by kevint on Sept 25, 2017 14:33:45 GMT -5
How accessible are the pins on ic1 and ic2 (output ics) to test while power on? Kinda hard to get to, there is another board above it, that has several components connected to the heat sinks and a hanful of cables that may make it tough to have it powered on and all together and be able to do readings on IC1 and IC2 IC1 and IC2 are mounted kinda middle with no access from below and blocked by things around it. I did get some type of test mode to come up, but not sure what I did> It has 26 factory presets. |
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Post by mastertech on Sept 25, 2017 14:57:04 GMT -5
Well you could try removing 1 and see if the error goes away. Which speaker wires do you think had a short?
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Post by kevint on Sept 25, 2017 15:22:40 GMT -5
Well you could try removing 1 and see if the error goes away. Which speaker wires do you think had a short? Probably the left |
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Post by mastertech on Sept 25, 2017 15:23:36 GMT -5
Left front or left rear?
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Post by kevint on Sept 25, 2017 15:25:52 GMT -5
left front, looks like IC1 is a combined Front left right and center amp. |
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Post by mastertech on Sept 25, 2017 15:29:57 GMT -5
Then I would remove ic1 (stk433-330) and see if it turns on normal.
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Post by kevint on Sept 25, 2017 15:39:40 GMT -5
will give it a try. Might take some time!
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Post by kevint on Nov 12, 2017 13:12:41 GMT -5
Then I would remove ic1 (stk433-330) and see if it turns on normal. Hey thanks for the Help. After trying to trouble shoot, found out a bit too tedious for me to do, but found a used model on Ebay for a very low used price. Less than repairing! |
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daveo
New Member
Posts: 1
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Post by daveo on Apr 24, 2021 13:15:59 GMT -5
Found this thread while googling for debugging tips for my RX-V373 receiver that won't power up after a high volume event. I worked through steps above as suggested by mastertech but alas it appears the thread petered out a few years ago. Any chance mastertech is still around and could suggest some follow on steps?
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Post by bchoyal on May 1, 2021 4:25:43 GMT -5
Hello. I have a Yamaha receiver RX-V373 that will not power up. When I press the power button, there is no response at all; no relay click. The only time a relay will click is when I press "tone control" + "straight" +"power". There is about 110V coming from the "rails?" of the main transformer. None of the capacitors look damaged, and the fuse tested fine. I am learning about electronics, and am able to solder/desolder. I would really like some help using my multimeter to find the solution to this receiver. Any help would be appreciated! View Attachment |
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