Hi i recently got Onkyo rx sr607, the problem was it have no sound even in any mode, then i checked the DSP chip, i found that it getting very hot, so i suspect there some internal short inside, I ordered new chip same part number and i replaced yesterday, But sill have no sound , i checked the voltage rail it is in limit as per schematic 1.2 volt and 3.3 volt. but when i am checking the DSP version on Display its showing D: ??/ ????????? like that .. i will appreciate anyone help on this
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Re: Onkyo tx sr 607 -New DSP chip installed
I wonder if the DSP chip might have some internal EEPRROM / flash memory, where it has (or should have) some ID and/or configuration data programmed...Khron's Cave - Electronics - Audio - Teardowns - Mods - Repairs - Projects - Music - Rants - Shenanigans -
Re: Onkyo tx sr 607 -New DSP chip installed
DSP Chip itself have internal ROM? .. i saw a NAND flash ic near by itComment
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Re: Onkyo tx sr 607 -New DSP chip installed
I can't be sure, but i wouldn't be surprised. Either way, i'm pretty sure (detailed) datasheets can't be found for those custom(?) chips.
That being said, if it has a flash chip nearby, that could be part of the problem too.Khron's Cave - Electronics - Audio - Teardowns - Mods - Repairs - Projects - Music - Rants - ShenanigansComment
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Re: Onkyo tx sr 607 -New DSP chip installed
HI... good news.. i kept in on condition this onkyo more than two hours after that i just checked the dsp firmware version ,,, success in display its shwoing the version.. but i dont know how it came..i connected speakers and i got sound,, but i restarted the again but its gone.. again display shows bunch of questions mark in dsp firmware.. but now i am kept it on conditionComment
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Re: Onkyo tx sr 607 -New DSP chip installed
what will be the cause for itComment
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Re: Onkyo tx sr 607 -New DSP chip installed
Hi ,,, i sort out the problem now .. the problem wass improper soldering ,, one pin of DSP chip ws not solderd properly ,,i soldered it again now its ok:musics
i reach a conclusion now ,, there is no flash rom inside the DSP chip itselfComment
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Re: Onkyo tx sr 607 -New DSP chip installed
Thanks for the update. I may have the same soldering issue than, with my TX-NR609. Most likely, I haven't done a good soldering job. It was my first DSP IC soldering job.Comment
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Re: Onkyo tx sr 607 -New DSP chip installed
i think your DSP is BGA right?.. in TX SR607 not BGA, ok do soldering and and let me know the result,Comment
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Re: Onkyo tx sr 607 -New DSP chip installed
SRT1, are there any other BGA chips on your board?
To me, seeing that it works after a few hours of idle time makes me think that there is a thermal issue, like a bad solder connection which expands and makes connection after the PC board warms up.
-BenMuh-soggy-kneeComment
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Re: Onkyo tx sr 607 -New DSP chip installed
were you able to fix the dts chip?Comment
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Re: Onkyo tx sr 607 -New DSP chip installed
How do you check your firmware version? I can't find that info. Thanks
never mind, I kept holding the display button...Last edited by St969; 05-21-2018, 01:41 PM.Comment
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Common SPI bios chip programming Questions and Answers
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Q: I have a bios request,i can`t post my backup as i can`t read from the chip.
A: If you can`t read from it how do you expect to write to it ?.
Q: Why is my bios chip unreadable ?.
A: The programmer is faulty or has a worn or broken zif socket.
The USB cable is frayed,connector pins worn or some other physical damage.
Not enough amperage or voltage to power the programmer properly.
Bad...09-02-2021, 04:40 PM -
Long story short:
- dad converted Asus Chromebox CN62 into Windows compatible, with mrchromebox BIOS, years and years ago
- gave the computer to his son a couple years later
- son now decided to revert it to Chrome OS, to sell it as original (re-writing BIOS with the backup one created by his dad)
- too lazy to remove the board from the case, thought a voltage regulator was the BIOS chip (you know... it has 8 legs)
(seems like the story was not that short)
He used alligator clips to read the chip. No luck reading it. Removed chip and placed on a SOC-8... -
Hello, anyone here have updated ezp2023+ chip database in .dat file format.
I need to add w25q256jveq chip but I do not know what data should I type.
I'm using the ezp chip dabase editor posted from here https://www.badcaps.net/forum/troubl...ro-programmers
The currenty unit model that I am trying to detect is HP elitebook 640 g9 which is currently locked on admin bios....11-25-2024, 12:53 AM -
This is a guide that I am writing for helping others to replace their MEC1503 EC chip if it breaks (or to get around an inconvenient prompt to the BIOS). This forum has been extremely helpful to me so I would like to contribute to help others. I will tell you right now that this task is very difficult to do. You MUST have experience and tools to do precision micro-soldering, BGA reballing, trace repair, and general laptop repair skills.
There are some specialty tools needed to do this task. The replacement MEC1503 chips can be acquired from Aliexpress. Do not buy the bare chips as... -
Thanks for any help. The board version is DAZAARMB6E0 REV: E. The bios chip is winbond 25Q64JVSIQ1736. W25Q64JV is not available in AsProgrammer -- only BV CV FV or FW_1.8c. The chip won't interface with asProgrammer and a CH341A. When I have this chip on the board, the laptop will not post but when I plug it in to power, the blue LED lights up, also the orange when the battery is connected. When I push the power on button, keyboard backlight turns on and the fan starts briefely then turns off. But I can't do anything to program this bios chip so I bought another one.
The BIOS...
Comment