Delta Pulse 3 Dijital Pulse Dedektör

[vas455]

Hi! Who can send pcb on Sprint Lauout or gerber ?
Linkback: Ynt: Delta Pulse 3 Dijital Pulse Dedektör

[Karadağ]

Hi! Who can send pcb on Sprint Lauout or gerber ?

You can use open diagram for draw your own pcb.

[Manos-tao]

hi I have 1 problem , make one delta pulse 3 and my problem is I don't have 1,6 or 1,8v
I have 1,26v why??? thanks.
8- Ölçü aletimizin -probunu devremizin gnd sine, + probunu da yukarıdaki
resimlerde görülen noktalara temas ettiriyoruz. Burada +1,6~1,8V
görmemiz gerekiyor.

[Manos-tao]

Nothing 

[Karadağ]

Hi,


1,26V is about vd12 and vd15. You should chack its. Also, you have to resolder marked jumper.


Regards

[Manos-tao]

Hi,


1,26V is about vd12 and vd15. You should chack its. Also, you have to resolder marked jumper.


Regards

this jumper have 1,26v is ok??
my detector does not work work why ? 

[Manos-tao]

and here I have 0,62v
I don't have +6~7,5V
what am I doing wrong

[Karadağ]

Hi,

Firstly you have to resolder these jumper. This is important. Then, you have to check vd12 and vd15. These diodes is about 1,6V. For to measure the 6-7V you have to put tl062.

Regards

[Manos-tao]

ok remove this jabber
here is a picture with  my measurements

what wrong I have done

[Karadağ]

ok remove this jabber
here is a picture with  my measurements

what wrong I have done

If you are measurnig like this, your have to open the detector with tune button for see voltages.

[Manos-tao]

my detector is dead ..
This is the image that I take

[Manos-tao]

my detector is dead ..
This is the image that I take

[Karadağ]

This is about mcu and lcd connection. You have to check the connections.

[Manos-tao]

I have this lcd

and my connection is pin to pin (1-1) (2-2) (3-3)---------------20 to 20 

[Karadağ]

I have this lcd

and my connection is pin to pin (1-1) (2-2) (3-3)---------------20 to 20 

Not about false connection. Maybe a brokken way or short circuit.

[Manos-tao]

 
how to fix???

[Karadağ]

you can measure lcd ways from mcu to lcd pins due to schematic

[Manos-tao]

yes I have 20 pin and is ok
1)from the IMAGES have sent seems more wrong I have done??
2)I follow this manual
up to 5 step everything is ok
from step 6 I have error 
the detector does nothing
the lcd connection as shown in the manual

[dabbo1974]

buongiorno a tutti, se vi ricordate, l'anno scorso ho edificata delta impulso 3 di avere un metal detector funzionale ho invertito BS250. BS250 con impulso delta invertito 3 è OK. ora io lavoro sul polso Delta 3 del mio amico che non funziona. Il lavoro pic ok, ma l'onda quadra non arriva a bobina. Ho misurato la resistenza onda quadra sotto 1k fino T9 (BC546). nessuna onda quadra è visibile in R60. Credo che non funziona BS250 CORRETTAMENTE. posso sostituire BS250 BS170 wuith? serbatoi a tutti, i migliori saluti Dabbo 1974

[dabbo1974]

good morning to all, if you remember, in the last year i builded delta pulse 3. to have a functional metal detector i inverted BS250. with bs250 inverted delta pulse 3 is ok. now i work on delta pulse 3 of my friend that does not work. The pic work ok but the square wav does not arrive to coil. i measured square wave until 1k resistance below T9 (BC546). no square wave is visible in R60. I think that BS250 does not work correctly. i can substitute BS250 wuith BS170? tanks to all, best regards Dabbo 1974