Re: Thermaltake TR2 750w Need help with resistor value
Thanks for the help. Does anyone know where you can get schematics for computer power supplies?
NickLoC
Senior Member
Last Activity: 07-06-2017, 09:22 PM
Joined: 01-16-2013
Location: Lake Havasu City, Arizona
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Re: Thermaltake TR2 750w Need help with resistor value
Why all the other bands then?Leave a comment:
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Thermaltake TR2 750w Need help with resistor value
I need to find out what value this resistor is. Having a hard time finding out. Replaced a bad main cap, a power mosfet and a smd resistor. This resistor measures .02ohm.... -
Re: SHARP LC-70LE857U 2 - 5 blinks
I have the same issue. What is the operation everyone is talking about? What do I cut and how? If I disconnect the link on the right side, looking at the back, that links the upper and lower buffer, tv turns on but picture on left side of screen is dark in areas and not displaying correctlyLeave a comment:
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Re: Denon AVR-1912
Thanks. With check the area on the speaker board. How do i check the main rail voltage?Leave a comment:
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Re: Denon AVR-1912
I know it's not the amp board audio transistors or resistors. Tried two amp boards. I know it's from a pioneer , but the output chips are the same and I adjusted dc offset to denon service manual specs. Kind of stumped here. The pop in the audio when i turn it on leads me to believe it's not a fault in the protection circuit, but elsewhere. Any ideas here? I'd really like to get my surround system up and running again.Leave a comment:
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Re: Denon AVR-1912
From what? The voltage regulaors?Leave a comment:
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Re: Denon AVR-1912
Also when i turn on the amp, once the relay kicks in there is a pop on the speakers. Not really loud, but you can hear it. Could that be a capacitor issue? How likely is it that those large filter caps are bad?Leave a comment:
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Re: Denon AVR-1912
Here is a pic of the speaker board and regulator board. Is this what your talking about? Could one of those regulators be bad? Also i checked the mv DCC voltage on the two front channels while running and seems to kick out when it hits 60mv....Leave a comment:
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Re: Denon AVR-1912
Adjusted the DC mv to spec from service manual. It's better, but still cuts out. Looks like DC detect is on amp board, but doesn't it get power from the regulators on the speaker board?Leave a comment:
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Re: Denon AVR-1912
Swapped out for the working amp board. Still same thing. Get volume above a certain level and amp throws a DC detect error. If i reset amp, will work at high volume for couple of mins, then DC protect again. Gonna try to set DC idle current for each channel. Still wondering if it's a component on the speaker board or voltage regulator boardLeave a comment:
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Re: Denon AVR-1912
So it's been a long time posting on this one. Posted another one on a pioneer amp i have, think it's a bad hdmi board. Any way, just out of curiosity i checked the amp board of the pioneer and it's almost identical. Go figure. So i hooked it up and the amp powers on and works. Can turn the volume up to -8db before it cuts out now lol can the speaker board where the relays are have a short? I have a spare pioneer amp board I'd like to try, as i think this one is bad. When i had it in the pioneer before the hdmi board issue, the amp would randomly cut out as well....Leave a comment:
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Re: Pioneer VSX-1021-k
Does anyone know what the specs are on the out put of the main transformer? Would like to test it. What voltage an i supposed to see on those two pins on that ic?Leave a comment:
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Re: Pioneer VSX-1021-k
Pin 80 on ic3004 reads 0 volts. Pin 71 reads 4.5 volts. Un plugged connection from the IR board that connects to the amp board and I get an amp overheat error. Plugged back in the amp just shuts down. No error code. Can not get into service mode. Amp shuts down trying to.Leave a comment:
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Re: Pioneer VSX-1021-k
Still have not had time to test further. Guy on eBay says the amp board is good and they tested it and says the amp board is not shorted. So will be doing the test stated here when I have some timeLeave a comment:
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Re: Pioneer VSX-1021-k
So that is on the HDMI board? How do I test the pins on that ic? Really small. And when? Do I have to try and turn it on and read it within a certain time?Leave a comment:
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Re: Pioneer VSX-1021-k
Will have to try that later. Will let you knowLeave a comment:
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Re: Pioneer VSX-1021-k
No fl light blinking. Just mcacc light. The amp started acting up awhile ago. Would work great for a while, then click off and fl light flash. Now it's the mcacc lightLeave a comment:
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Re: Pioneer VSX-1021-k
All seem to test fine. No shorts. Am I missing something?Leave a comment:
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Re: Pioneer VSX-1021-k
OK. Thanks for the info.Leave a comment:
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