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mcd76
27th November, 2015, 12:05 PM
heloo
As Decode This unit ??
model is Kenwood DPX404U... KE1728B0900311
thanks.
shooting
27th November, 2015, 12:07 PM
heloo
As Decode This unit ??
model is Kenwood DPX404U... KE1728B0900311
thanks.

From dump my friend :)

wbr
jackie86
27th November, 2015, 12:10 PM
Read eeprom and attach so we can try..


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mcd76
27th November, 2015, 12:14 PM
ok,I understand, but do not find ip...I found only one micro .and not 24cxx, as it is linked
93cxx possible?
shooting
27th November, 2015, 12:15 PM
ok,I understand, but do not find ip...I found only one micro .and not 24cxx, as it is linked
93cxx possible?

Either hidden in Tuner or on front panel usually (24c04 normally) :)

wbr
mcd76
27th November, 2015, 12:29 PM
no tuner , no panel.....
procesor M16CR5F3650KDFB
shooting
27th November, 2015, 12:31 PM
no tuner , no panel.....
procesor M16CR5F3650KDFB

Post picture of inside tuner.., it's here, 9010 size chip

wbr
Zann
27th November, 2015, 07:31 PM
Only eeprom I can see, is IC8, BR24L04FV-W on CD player board.

343798
KierAn20
27th November, 2015, 08:31 PM
Zann is right, there is only one serial eeprom and it is on the cd player board attached to the cd mech :distrust:

So maybe doubtful the code is in there. Unplug cd mech from mainboard and see if it still asks for code - I think it still will.

Please try an experiment, power the unit so it is saying "[-][-][-][-]" and now hold down the "Seek UP" button and the "Band" button at the same time for a few seconds, and tell what happens...........
mcd76
28th November, 2015, 08:47 AM
Thank you gentlemen for your interest...
so...
is not eep for panel..
is not eep on pcb, except for ic302 micro smd(without marking).seems bound so ...pin 1 (out)/ pin 2 and3( together)/ pin4(gnd)/ pin5 (nc) / pin 6(out) /pin7(out) pin 8(+5v).
I tried to press together 'seek up' and 'band' disappear ---- and so....stay CODE and does nothing.
I think that eep is in processor....
audio
28th November, 2015, 09:26 AM
Hi!

This is a DPX301 drawing, the EEPROM on the CD mechanics is IC9 position. BR24L02FV-W
wbr.
343864
343865
343866
mcd76
28th November, 2015, 09:39 AM
no eep on the cd mechanics...
audio
28th November, 2015, 09:55 AM
Hmmmmmm....

Even the tuner can see SDA SCL lines, but there is no internal tuner in the drawing.
remember the Kenwood very very tiny 5-pin EEPROM capsule

343870
shooting
28th November, 2015, 10:06 AM
no eep on the cd mechanics...

Can you give me a better picture of IC302 from base pcb?

wbr
Raimax
28th November, 2015, 10:25 AM
Maybe IC140 with 5 pin ???
RadioChiP
28th November, 2015, 10:52 AM
eeprom Ic140?.......
Raimax
28th November, 2015, 10:56 AM
eeprom Ic140?.......

I'm wrong .....
RadioChiP
28th November, 2015, 11:06 AM
@mcd76
you have remote control?

Read Service manual page "20"
mcd76
28th November, 2015, 11:35 AM
no have remote control...
shooting
28th November, 2015, 12:23 PM
no have remote control...

Found SCL & SDA points for Flash

see pic

wbr :)
ilen
28th November, 2015, 12:45 PM
.............343902
RadioChiP
28th November, 2015, 01:12 PM
This tuner data pins........
shooting
28th November, 2015, 01:22 PM
This tuner data pins........

Sometimes Code is also stored in Tuner.. this might be correct :)

wbr
ilen
28th November, 2015, 01:34 PM
try..........343909
RadioChiP
28th November, 2015, 02:12 PM
........................
mcd76
28th November, 2015, 03:02 PM
so....I give up ...
I tried to read SCL & SDA points for Flash But without success..
I tried to read as 24Cxx ,with x-prog , carprog ,minipro .
Thank you, gentlemen, for your time.