Diga problem. BIG Problem

[lupu_sandu]

Hy guys (and girls),
I have Tacho Universal from China ver. 2008 January.
TACHO2008 version when power-up is displayed.
My problem is after some uses (10 or more) i cannot modify
Opel Dash (Astra G for example) to OBD2 anymore.

When modify dash to OBD2 use:
Opel>Astra>VDO Diagnostic or 2001 Diagnostic.
Then input new value (old value is not displayed)
When Diga start to modify show on bottom on screen version of dash.
But for me this will not work anymore.

I have same situation and change motherboard of diga, but this work a few weeks and then stopped.
Now i have same f*ucking annoying thing.
Rest of cars seems to do just fine.
Anyone have one solution for this? Or some advice?

[z786]

the cars that you have adjusted, have they had an aftermarket stereo by any chance????

[lupu_sandu]

No. I know the issue.
Diga stop working on Opel cars by itself.

[PremierD]

No. I know the issue.
Diga stop working on Opel cars by itself.

What year is your Motor mate....?...Had 2004 Astra G.. in a week ago..Similar Problem....Cluster turned out..to be TRW ..not VDO..Just a thought..

[Babanovski]

with diga you can adjust some of the astra dash not all of them. on some need to be removed and program the eprom. iven if is vdo.

[PremierD]

with diga you can adjust some of the astra dash not all of them. on some need to be removed and program the eprom. iven if is vdo.

Never came across an Astra VDO cluster that would not change with Diga mate... (But I could be wrong)...

[lupu_sandu]

I know mate, but even is a TRW dash Diga show you TRW Version when try to change mileage.
But i talk about my dash, is a VDO.
Diga working just great last weak on him, and now stop working.
I think in mainboard defective, but 2 of them? (

[energjia]

I know mate, but even is a TRW dash Diga show you TRW Version when try to change mileage.
But i talk about my dash, is a VDO.
Diga working just great last weak on him, and now stop working.
I think in mainboard defective, but 2 of them? (

try to backup and erase the diga maybe is full and can make that problem

[wbogdan]

i try tomorow test it

[lupu_sandu]

I try everything. I change dumps, i change chips from CPU board.
I order a new mainboard (blue version) - 90$ from China.
I hope 3-rd will be a lucky number

[cammy25]

problem is your adapter mate obd-k. look if there are some resistors or just cables.
If yor board is defective then you should exchange only 74hc04. This one is responsible for K-Line communication.
If you problem is in CPU board,then exchange the 2 74hc244.
believe me ,should be ok.
I have reversed Diga hardware long time ago. I have several solutions for it.

[Maxpower50]

i got tha manual instruktion for repair the Tachopro 2008 if intrested

[lupu_sandu]

Cable is OK, i tested.
I have change 74HC5410 below display (near NEC processor). Same shit.
Ideea is after changing mainboard it's OK. I guess that CPU board is ok.

[drpeter]

Cable is OK, i tested.
I have change 74HC5410 below display (near NEC processor). Same shit.
Ideea is after changing mainboard it's OK. I guess that CPU board is ok.

If OBD2 is not working, the small SMD power transistor is defect, left under lCD screen (I think it was a NPN transistor, check number) I took a normal BD137 for this, not sure long time ago. Measure between 2 legs, if shortcut then transistor defect. If not replace the 74HC04D above the transistor. Once I had a transistor defect and on another diga the 74HC04D.

[Rito]

I wold like know If some people can help how I can put 93Cxx works great.

My Diga (clone) never read 93Cxx and I see in this web site If change one chip can read and write, only 24cxx...

Repair and Update KIT for Tacho Universal / Diga Consult

Some people do it or this not work??
Or exist other solution?

Thanks all