Pioneer SC-LX801

tibimakai Master Tech Posts: 689	Pioneer SC-LX801 Dec 8, 2022 11:07:46 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by tibimakai on Dec 8, 2022 11:07:46 GMT -5 Elektrotanya has the schematic. elektrotanya.com/showresult?what=Pioneer+SC-LX801&kategoria=All&kat2=All

mastertech Global Moderator Posts: 3,538	Pioneer SC-LX801 Dec 9, 2022 10:39:08 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by mastertech on Dec 9, 2022 10:39:08 GMT -5 I have some thoughts but I would need to get a look at those schematics. Send some links.
	MT

mastertech Global Moderator Posts: 3,538	Pioneer SC-LX801 Dec 9, 2022 10:54:09 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by mastertech on Dec 9, 2022 10:54:09 GMT -5 Ha, yea I had found it. I will look it over later and post a reply.
	MT

tibimakai
Master Tech

Posts: 689

Pioneer SC-LX801 Dec 9, 2022 11:01:50 GMT -5

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Post by tibimakai on Dec 9, 2022 11:01:50 GMT -5

Sorry about the download link(did not download it myself). This is the first, that I have seen Elektrotanya posting a user manual.

I also have an Epson 2045 to repair as well. Sometimes there is no HDMI signal, but the menu works.

Last Edit: Dec 9, 2022 11:03:50 GMT -5 by tibimakai

mastertech
Global Moderator

Posts: 3,538

Pioneer SC-LX801 Dec 9, 2022 13:06:35 GMT -5

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Post by mastertech on Dec 9, 2022 13:06:35 GMT -5

What inputs have you used for testing?

Also, when you say "only in pure direct and with headphones" do you mean (in pure direct, regular speakers work fine and also headphones) or (headphones only and not speakers)?

Also, have you checked all the firmware versions to be sure they are all populated?

mastertech
Global Moderator

Posts: 3,538

Pioneer SC-LX801 Dec 10, 2022 14:26:34 GMT -5

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Post by mastertech on Dec 10, 2022 14:26:34 GMT -5

Based on your symptoms and what you have tested so far I would think that the problem may be in either the ADC section, DSP or DAC section. In the manual, I saw some areas to check some line voltages so I would probably start there. A quick look on pages 46, 70 (audio and ADC, DAC) for some voltage checks. I would not be thinking a lot into DSP just yet since you have all firmware's. Although slim, I would not rule out the volume/switching ic's yet either. Although they appear too be working in one aspect another part of it may not be. Good luck hunting.

madmal Junior Member Posts: 22	Pioneer SC-LX801 Mar 1, 2024 7:26:12 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by madmal on Mar 1, 2024 7:26:12 GMT -5 I know this is an old thread, does anyone know what the original poster's symptoms were? seems like his messages have been deleted...

albertto: Hi everyone. This is my first post here, so greetings to everyone. I hope to help and get helped in my diy prjects or other stuff. Thank you in advice!! Nov 2, 2024 12:45:30 GMT -5 *

zerolearner: Hi team members I'm new to the forum. I have denon X2000 firm issue I replaced the new ADSP IC but upload the firmware via USB port I got a error message connection failed 5A. FLAG0 present 0.84V is there any JTAG programmer for update the firmware. Sept 30, 2024 22:36:28 GMT -5

redpill: Would you able to provide more details in regards to your fix. Did you replace faulty unit or fixed yourself? I'm having similar problem and wonder how to approach it. Thanks. Lucas. Sept 8, 2024 1:10:29 GMT -5

Post by tibimakai on Dec 8, 2022 11:07:46 GMT -5

Post by mastertech on Dec 9, 2022 10:39:08 GMT -5

Post by mastertech on Dec 9, 2022 10:54:09 GMT -5

Post by tibimakai on Dec 9, 2022 11:01:50 GMT -5

Post by mastertech on Dec 9, 2022 13:06:35 GMT -5

Post by mastertech on Dec 10, 2022 14:26:34 GMT -5

Post by madmal on Mar 1, 2024 7:26:12 GMT -5

Shoutbox