i need help with eeprom rcd 310

**armo** · 21st October, 2019, 07:50 PM

hello friends i want to read eeprom rcd 310 i search on the pcb but i cannot find the right chip to read eeprom.
on the pcb i see 2 chips wich i think one of them schould be the chip to read eeprom but i cannot identify which serie it is.
one chip is 128wr st k941p
the other one is k410 st z947
the second chip is so small that i even cannot put a clip on it.
chip 1 dos not have a dot to identify pin 1.
who can help me.

1234.jpg

**Zann** · 21st October, 2019, 08:13 PM

For code you need to read eeprom ST95128 and NEC processor.

**armo** · 21st October, 2019, 09:53 PM

is that chip number 1 or 2 on my picture ?

**Zann** · 21st October, 2019, 09:56 PM

Number 1

But you must read NEC too.

**armo** · 21st October, 2019, 10:11 PM

Originally Posted by Zann

Number 1

But you must read NEC too.

i have ch341A i can do it with that ?
i have also orderd ezp2019 but not received yet can i do it with this ?
and can i read this one without desolder beqause i have also orderd hot air gun but also not received yet.

**Zann** · 21st October, 2019, 11:27 PM

Originally Posted by armo

i have ch341A i can do it with that ?
i have also orderd ezp2019 but not received yet can i do it with this ?
and can i read this one without desolder beqause i have also orderd hot air gun but also not received yet.

Open the software and look if eeprom 95128 is supported by your programmer.
It is recommended that you desolder eeprom from the board.
For reading NEC processor you can use any USB-to-serial converter.
Look here
https://www.digital-kaos.co.uk/forum...highlight=v850

**RadioChiP** · 22nd October, 2019, 08:10 AM

Second option go local radio decoder

**armo** · 22nd October, 2019, 09:30 PM

I tried to read with clip but i only get ffffff. I have to wait until i receive hot air to desolder that chip.

**armo** · 24th October, 2019, 02:03 PM

i have eeprom from 95128 who can calculate code for me?

**shooting** · 24th October, 2019, 02:42 PM

Originally Posted by armo

i have eeprom from 95128 who can calculate code for me?

You cannot get code from eeprom alone, post dump from NEC processor also

wbr

**armo** · 28th November, 2019, 11:55 AM

he is calculating without nec ?

**shooting** · 28th November, 2019, 12:08 PM

Originally Posted by armo

he is calculating without nec ?

Because that is DELPHI not BLAUPUNKT... not the same radio...

wbr

**armo** · 28th November, 2019, 01:39 PM

which hardware is the most easy to read the nec ?
if i follow the instructions of the next topic then i have to add a reset button, 12v and so on, maybe there is al tool which make the work more easy ?
https://www.digital-kaos.co.uk/forum...highlight=v850

**catalinosonesti** · 28th November, 2019, 01:49 PM

IMG_20191111_083437.jpg

Originally Posted by armo

which hardware is the most easy to read the nec ?
if i follow the instructions of the next topic then i have to add a reset button, 12v and so on, maybe there is al tool which make the work more easy ?
https://www.digital-kaos.co.uk/forum...highlight=v850

hy, i work with this ,calcuate alone algo ,no stres eazy to use
http://www.codecard.eu/car-radio/rcd.../prod_665.html

**armo** · 20th February, 2021, 12:11 PM

Originally Posted by Zann

Open the software and look if eeprom 95128 is supported by your programmer.
It is recommended that you desolder eeprom from the board.
For reading NEC processor you can use any USB-to-serial converter.
Look here
https://www.digital-kaos.co.uk/forum...highlight=v850

for the programator V850 NEC i need 12k resistor trough 12v, can somebody give me a link from ebay which resistace i need to buy and how many for this job. thanks in advance

RCD310_Blaupunkt_pinout.JPG