POZ......... Jel ima kakva slika di je vidljiv problem na tabli

Tacno tako, desava se da eeprom puca i gubi sadrzaj i treba ga ponovo reprogramirati. Meni se desavalo da pogubi sadrzaj usled oscilacija u napajanju ali i jednom jer je vlaga usla u tablu???
Evo vam sta sam do sada nakupio korisnih stvarcica oko kvarova, i ja se upravljam po tome...pogledajte pa se zabavljajte...ali kao sto kolega rece, samo elektronicari..OSTALI NE PIPAJTE!!!!!!

RENAULT SCENIC 2005
ploca Johnson Controls EE ST93C56  EEprom je 16-bitni!!!!!
ocitati original kao 16-bitni

u fajlu 37065 OK Scenic Jaeger 93c56 2005 ORIGINAL.BIN VIN broj je VF1M020533569467, IAKO SE STAVI DRUGI VIN TABLA RADI!!!!
U FAJLU scenic 93c56 johnson 205694km orig.bin JE JEZIK ITALIJANSKI

km preko tachosota

Car type: Renault Scenic  Johnson Controls - 93c56 - 2004 year
The mileage is stored in the next lines:
0000: 1D BF E2 40 00 01 1D BF E2 40 00 01 1D BF E2 40
0010: 00 01 1D BF E2 40 00 01 xx xx xx xx xx xx xx xx
where the next bytes:
1D BF E2 40 00 01 - is a mileage

cubica powered

It's a common problem with this kind of displays !
FET IRF 540 (in the scenic: IRF 3710)
Many 1 ohm resistors...
Poor contact all parts (!) under the glass display - you must to
desolder it !
Check ST 2843B !!!

Hi,
This is common problem...
But the trafo allways seems to be bad, but it is good
Change the pwm controller (2843B) to a new one.
Check the pin 6 and the 30 ohm resistor.
Check oscillator frequency, must be 52 KHz.
And all soldering

Your bench power supply must be 6-8A or better, i use lead acid accu 7Ah/12V. You must connect pin 1 of Red connector to +12V via R=1K and dashboard will start only clock, but this is enough to see that work or not. Start current is critical.
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Hi
I don't understand where is problem ???
this instrument is really not complicated !!!

step1
check smd fuse - if is o.k. then try resolderin pcb (1ohm resistors and everything around)
try start instrument with 1k resistor
if working clock - check current 1.2 - 1.3 A.
if more then something is not o.k.

step2
if smd fuse is not o.k. then check transistor F3710, resistor 30 ohm and CS52843 (look data sheet)

step3
lot of instrument clusters to lose eeprom software. without correctly software cluster not starting as well, sometimes is different milage. noise from converter.
reprogram 93c56
v5.14 or v6.01 or v6.02
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hello all!
I have a dashboard of renault scenic II no display, I disloder big cristal, I tested all smd resistor (0ohms) all good, small fuse is good too.
where is the problem please.
how to confirm f irf7310 is good or no?

help me plz.
thanks a lot

*****
you can try measure it with a multimeter

First, identify the gate, drain and source pin from semiconductor data book.
Once you have locate each pin of the fet, then use your analog meter set to times 10K ohm range. If you are measuring an n-channel fet then place the black probe to the drain pin. Then touch the gate pin with the red probe to discharge any internal capacitance in the fet. Now move the red probe to source pin while the black probe still touching the drain pin. Use your finger and touch the gate and drain pin together and you will see the analog meter needle will kick forward to middle range of the meter's scale. Removing the red probe from the source pin and touching it back again the source pin the needle will still remain at the center of the meter's scale. To discharge it you have to remove the red probe and touch one time on the gate pin. This will discharge the internal capacitance again. Now using the red probe to touch on the source pin again, the needle would not move at all because you already discharge it by touching the gate pin.

I know is a little bit of confusion but after some practice you will be able to test all types of fet.

When measuring the fet and you observed all the readings moved toward the 0 ohms range then the fet is considered shorted and need to be replace. Checking the P-channel is similar to checking an N-channel fet, just switch the probe polarity when measuring the P-channel. If you having an analog multimeter with a times 100k Ohm range, then you might not be able to accurately check the fet due to the missing of 9 Volt battery in the meter. The missing of 9 volt battery will have not enough power to trigger the fet. Make sure your meter have the time 10k ohm range. Typical N-channel fet part numbers are K792, K1118, IRF630, IRF 840. P-channel fet part number are J306, J512, IRF9610 and etc.

______________________

If your dash is starting intermitant, then the eeprom is not the problem (i have experimented with eeprom contents and found that there is only 2 address which hold power up data, i dont think the data is the same for every version of dash, needs more research). The only corruption i have seen is the milage jumping up or down, but i feel the eeprom stores parameters for the particular model of scenic, ie:- electric handbrake, auto gearbox,launguage, etc (someone correct me if i am wrong)
Ok i am attaching a pic with voltages i read on a dash i fixed, if you have voltages like these and still no display then i would assume there is no coms from dash to vehicle ??.
I also took pictures of ossciloscope readings from pwm, i will upload as soon as i find my usb lead.
Hope this helps

pozz,
cubica

mozes sam trafo da premotas nije tesko uradio sam ja 3-4 trafa do sada i nemaju problema,nema unutra vise od 3 metara zica

I mene zanima isto...nisam nesto mnogo ovih tabli odradio alèi nikad do sada nisam naleteo na trafo neispravan..mozda i bolje Te stvarcice se ne kvare lako i kako rece Elti moraju da gore i spajaju namotaje..da li su bili makar vidljivo pokvareni..nagoreli..da li si merio otpor namotaja i poredio sa originalnim ili..??

pozz,

cubica

Koja ti je godina tog auta i koji je motor u njemu?

Evo kolega dampa,samo iskalkulisi odgovarajuce kilometre.

Pozdrav.

isto ko i pre na displeju javlja                                     
MANUTACIONE   VER.
EPROM

Jesam isto mi javlja

mozda si ga kontra postavio ili ti je prolikom dizanja puklo podnozje na plozi , vidi imas li napon na epromu , 
koji programator koristis ?

Nije do dump-a .Skinuo sam stari ako nekom zatreba.

Skinut mi savet sa foruma,mozda zbog broja telefona da me podsetis jutros,ali nema veze setiosam se sam,u jednom smeru ti ima 11oma a u drugom nema nista,probaj dici nogicu u vis pa probaj da vidis razliku.Sacu da moju tablu prikacim i da ti posaljem koji je radni napon na toj tacki.
Pozz