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Go Back   GSM-Forum > GSM & CDMA Phones / Tablets Software & Hardware Area > Nokia > Nokia Legacy Phones ( DCT-1 ,2 ,3 ,L )

Nokia Legacy Phones ( DCT-1 ,2 ,3 ,L ) Nokia Legacy Models Like 1011, 1610, 211x, 2x20, 6050, 3110, 8110, NKxxx , 2100, 3210, 3310, 3330, 3410, 5110, 5210, 5510, 6110, 6150, 6210, 6250, 7110, 8210, 8250, 8850 also 9110 & 9210

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Old 03-27-2002, 06:46   #1 (permalink)
Freak Poster
 
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Question Those damn MBUS


Hi!

Still Having problem with cables(for Dejan Nk_calc)
(I Have ALL components)

1. wich direction black line are supposed to be(1N4148)
2. On 470uF And 47uF Are the short pin supposed to be solderd to gnd? (negative gnd)
3. what does "VI" and "WO" on 78L05 mean and should I have the flat side towards me?
4. On 74HC04, how do I know wich pins that are right?
5. On bc239c where should I solder the pins?

Please tell me how to do it RIGHT!!

SORRY I'M LAME WITH CABLES

Mail me solution:[email protected]
or post

THANKS

/Atlantis
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Old 03-27-2002, 09:08   #2 (permalink)
Abe
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1. black lines are directed as OUTGOING.....
2. dont use bc......just use 1n4148 and resistor 1kohm..........go to kickme.to/gsmschwantz and download the modified cable by abe.......
2. 78lp05 turn the main side in front your face ant thats how it has to look like...........
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Old 03-27-2002, 09:10   #3 (permalink)
Abe
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Sorry,this also.....
use max232 as in my cable.....in one side of the chip is a small point......this is the upper side of chip....pin 1 is the first left pin......
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Old 03-27-2002, 15:51   #4 (permalink)
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WHY

WHY should I change schematics??
Are Dejan's NOT working?
If it works can somone tell me EXACTLY how to do.
step by step...
/Atlantis
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Old 03-27-2002, 16:09   #5 (permalink)
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A simple solution.

If you have factory made 3210 datacables, do the following:

1. Cut of the wire and peel it, revealing the black, white, and blue wires.
2. Short the blue and white wires and connect it to your MBus.
3. As always, black should be Ground.


Try it with nk_calc and rolis.

Just remember, 3210 data cables and not the other types.


regards,

aCe
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Old 03-27-2002, 16:42   #6 (permalink)
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Unhappy doesn't work

Solution for 3210 doesn't work...
But anyway I want solution after Dejan schema...
I don't want to buy, buy, buy components...
and then it doesn't work anyway...

/Atlantis
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Old 03-28-2002, 00:28   #7 (permalink)
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Wink

I`ll see if i can give you some help, here goes....

I`ll go thrue every component and explain how they should positioned.

1N4148 - These have a little black line that is closer to one of the edges, this edge should be placed in the same direction as the line is on the schematics.

470 uf and 47 uf - The short pin is (-) , the long pin is (+). So short pin should be connected to ground.

78L05 - You should hold this component so that you have the FLAT part towards you. This component has three legs, the one in the middle is ground and the left is VI, and the right one is VO.

74HC04 - This is a standard Ic component. 1,2,7 and 14 is the legs you should use. If you look at the top of the Ic, in one of the corners( could be one of the far ends also ) you will find a little cirkel mark, to the left of this mark is Leg nr 1. when you count legs on a Ic you should count down on the left side 1-7 and uppwards on the right side 8-14 (so you will find Leg 14 to the right of the cirkel mark).The Legs thats not being used are left just as they are.

BC239C - This component looks like the 78LO5. You should hold this component so that you have the FLAT part towards you. The middle Leg should be connected to the 10k resistor,left Leg to ground and the right Leg to pin 1 on 74HC04, a 10k resistor and to the cable that connects to the m2bus on the phone.

10k - This is a resistor and can be positioned in any direction.

Thats all
Hope this helped and good luck with your M2bus cable.

Regards Leeloo.

Last edited by Leeloo; 03-28-2002 at 00:33.
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Old 03-28-2002, 10:44   #8 (permalink)
Abe
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Yes........this explanation is ok..........
It must work now..............
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Old 03-28-2002, 16:03   #9 (permalink)
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hmm

got some parts by mail today...
testing later today (think 74HC04 was damaged by ESD)


/Atlantis
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Old 03-29-2002, 05:18   #10 (permalink)
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THANKS

THANKS ALL OF YOU for helping me...
I did some wrong her and some there but you helped me
to make it right...
THANKS... for you are so helpful
my MBUS working 100 % now.

/Atlantis
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