Tamo Neko
Member
Last Activity: 11-24-2025, 12:33 AM
Joined: 05-03-2019
Location: Nis
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Just to join the descution for demand on cfi-1216b dump...Anyone (edm-033 pcb) -
Yes thanks, you are correct (they were hidden from my view from heatsink), I have mistakenly desoldered and erased wrong one mentioned in new topic https://www.badcaps.net/forum/troubl...aming-h670-pro
posted in this forum ....Leave a comment:
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Request for MX25VB8035F (1MB) Firmware Dump – Asus TUF Gaming H670-Pro
Hello everyone,
I'm working on an Asus TUF Gaming H670-Pro motherboard and need help finding a firmware dump for the MX25VB8035F (1MB) SPI flash chip.
What Happened:
I mistakenly removed and erased this 1MB chip, thinking it was part of the main BIOS.- I later found that the board has two main BIOS chips (8MB + 16MB), which I have backups for.
- My backup for the MX25VB8035F chip is just an empty 1MB segment filled with FFs, meaning I have no valid data to restore.
- A firmware dump for the MX25VB8035F chip from the same motherboard (or a compatible
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Hi everyone,
I desoldered a MX25VB8035F (8Mb SPI NOR Flash) from my motherboard, but now I'm unsure if I removed the correct chip. I also found a GD25D05CTIG on the board.
Can anyone help me confirm the correct locations for these two chips? A motherboard pics or any guidance on their typical placement would be greatly appreciated!
Thanks!Leave a comment:
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Re: Onkyo tx-nr414 shutting off after few seconds
[QUOTE=keeney123;1138145]SL is an output of Q4001 part 4 game IC
If you are talking about SPSL then have you tried setting your meter on that spot while adjusting the idle screw for that section? That would be R6043 to see if you can lower the voltage?
Tried that too with SPSL, not any significant change.Leave a comment:
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Re: Onkyo tx-nr414 shutting off after few seconds
If by ohm-ing out you mean ohm-ing out for idling current adjustment, then answer is yes, at least at the time I checked for that, and that was good.
I have problem with output offset on SL.Last edited by Tamo Neko; 05-31-2022, 11:39 PM.Leave a comment:
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Re: Onkyo tx-nr414 shutting off after few seconds
There is -0.5v output offset on one channel only (SL) going to speaker relay out - that is for sure too much, and by mine opinion would trigger protection as it is connected directly to vprotect line...
-0.5v is at P6083, NPLG-2P29 (page 9 (2IJ location on this page)) or in short NFSL line to ground.
60v is because mine mains voltage *is at 250vac, as I have already mentioned at this thread but would not consider it significant.
Now that you mentioned it again I have double checked that by lowering...Last edited by Tamo Neko; 05-31-2022, 10:07 PM.Leave a comment:
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Re: Onkyo tx-nr414 shutting off after few seconds
I really don't understand this offset which seems to come from nowhere...
Preamplifier board checked
Amplifier circuit checked
Output transistors replaced but not checked
Protection circuit checked
only mismatch is +-59v where in service manual says +-56.2...Leave a comment:
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Re: Onkyo tx-nr414 shutting off after few seconds
All voltages that you mentioned are as specified...
I will replace all rn1441 with bcr533...Closest match I could find...
Will report offset afterword's...Leave a comment:
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Re: Onkyo tx-nr414 shutting off after few seconds
I will look again at preamplifier board as input voltages are ok coming into it...
I measured connector very very carefully now to not burn another transistor again...Leave a comment:
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Re: Onkyo tx-nr414 shutting off after few seconds
Just have replaced blown transistor. Back to square one.
Can u help me with answering what component regulates output offset voltage in this amplifier?Leave a comment:
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Re: Onkyo tx-nr414 shutting off after few seconds
Originals are marked QA? and they should be here>
https://cdn.badcaps-static.com/pdfs/...45bd9108f5.pdfLast edited by Tamo Neko; 05-28-2022, 12:35 PM.Leave a comment:
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Re: Onkyo tx-nr414 shutting off after few seconds
I do have an isolation transformer, might be good time to start using it ,
No the cap had not exploded, but it was pre biased transistor q4104.
I have a transistor with same parameters except for two incorporated resistors , in original transistor both are 1kohm and in mine transistor they are 47k...
Will it change something obvious or should I replace that with what I have?Leave a comment:
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Re: Onkyo tx-nr414 shutting off after few seconds
Just had shortcircuited a big cap with my probe...
boom!!!!
...tired...
and have to go to work in an hour...
I dont have "capacity" hahaha to think properly nowLeave a comment:
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Re: Onkyo tx-nr414 shutting off after few seconds
Let me correct myself.
Diagnostics mode works except for: It can not engage "OPERATION CHECK 7" - (3-0~3-14) as it instantly shuts off.Last edited by Tamo Neko; 05-25-2022, 04:47 PM.Leave a comment:
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Re: Onkyo tx-nr414 shutting off after few seconds
And about note *6 which is not described in this manual.
I have found what is written about that in other manual for tx-nr838 :
*6 4-00~4-18:PRRLF=ON
DSP chip might be bad???Last edited by Tamo Neko; 05-24-2022, 12:04 AM.Leave a comment:
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Re: Onkyo tx-nr414 shutting off after few seconds
Yes, sorry. I mean page 21 that can be found in attached tx-nr 535 pdf.
That is OPERATION CHECK 8 - Auto Measurement mode whichever one comes available first and that is 4-00 (or 4.30 if you try to enter it from 5.00) on this page -.......Last edited by Tamo Neko; 05-23-2022, 10:44 PM.Leave a comment:
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Re: Onkyo tx-nr414 shutting off after few seconds
Unit shuts off immediately when in diag mode button GAME is pressed...
Would that point to some components?Leave a comment:
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Re: Onkyo tx-nr414 shutting off after few seconds
To explain better post above, voltage to ground is about 250mv from adjusting idle current points...and that is on surround left...Leave a comment:
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Re: Onkyo tx-nr414 shutting off after few seconds
No shorts at output...
Checked preamplifier board and all is ok...
There is still bias diference of 100mv.
Now the question is, would that trigger protection?Leave a comment:
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