Hello. I have to read a 24c04(404rp) eeprom msop8 package but currently don't have an adapter for it. I have read couple comments that claim that you can read by connecting only some pins of the eeprom, only serial data and serial clock. Has anyone tried this or is there any way how to read the data without desoldering the chip?
-
-
Re: 24C04 Eeprom programming?
Method one, clip, best to buy the newers one with jumper connectors, not soldered wires. Method two, solder sda, scl, wp, then an alligator clip wire for the gnd. This method requires some attentions, you must power supply the chip with supply of all the board but you must wait that the main chip approximately have finished accessing the eprom, also it must be address 1.Last edited by Davi.p; 02-03-2021, 11:48 PM. -
Re: 24C04 Eeprom programming?
Thanks a lot. Tried it and it worked. Do you happen to know if this works for 25q chips as well?Comment
-
Re: 24C04 Eeprom programming?
25Q needs almost every pin connected so it is much better a fast clip on it but cheap clips very often fails contact due to bigger sizes than a 24c. To correct myself i'm not sure if address must be 1, i think not.Last edited by Davi.p; 02-04-2021, 01:03 PM.Comment
-
I tore apart my instrument cluster for my 2008 Toyota Corolla made in 2007 in Cambridge, Ontario, Canada and pcb location: IC6=EEPROM is a surface mounted device with part # of 93C46W7, some claim the EEPROM out of a Camry part # 93C56 will allow odometer to roll over 299 999 KM or miles. The data sheet for both is below:
https://cdn.badcaps-static.com/pdfs/...c6e42b20d3.pdf 2
Anyone know if the Camry one will work on my Corolla?. And which EEPROM reader/writers do you all recommend I purchase that will allow me to read the old values of the old... -
Hello, My head unit developed strange behaviors so I ran the built-in diagnostic package which returned "No EEProm". The service manual says there is no EEProm connected. I approached Pioneer and they said to swap out the DSP board. All said and good but the DSP board is $860 USD. I am hoping someone can help me
1). Understand the schematic and check the connections between the EEProm and DSP
2). Check the functionality of the EEProm
I don't know if this is the unit's problem but it's a place to start.
I have little to no electronic experience... -
Hello,
Namaste!
Recently while doing Macbook Display repairs - due to a mishap by the supplier, we found that certain Macbook LCDs are cross -compatible but have Brightness issues.
Some are DIM after start-up and some stay at Max brightness with the brightness control being disabled.
While speaking to my supplier they said that they can program the LCDs at the Factory so that the brightness issue was resolved.
I was wondering if there were a way we could do the same? I came upon a video online as well. Here is the link >... -
Hi everyone
Iยดm trying to repair a TV Vizio E320-A0 that I found in the street
The symptoms are it doesn't respond with remote or buttons, the LED indicator is always off and also there is no image on the TV.
The power supply board works fine (I probed the terminals with my multimeter) but in the main board the EEPROM doesn't works correctly because the voltage on the pins doesn't match with the parameters of the datasheet.
So, Iยดm going to replace the EEPROM with a new one, but the problem is that my programmer (CH341a)... -
Dear friends, I want to share my experience repairing an ASUS TUF FX506L gaming laptop motherboard: DABKXDMB8E0_F_BKXD. Boardview and schematic are available, as well as the BIOS and ITE ROM.
When the customer brought in this laptop, it was initially dead; it showed no signs of booting for any reason. After hours of measurements, checking each stage, MOSFET, and seeing if there was a short circuit in any capacitor, I discovered a strange 0.7V leakage voltage on the 3V_S5 rail, particularly on the PL9 coil, with the board not powered on. There were 3V_LDO and 5V_LDO voltages, which...
Comment