[x] Welcome at THunting.com!

A fun place to talk about Metal Detecting, Treasure Hunting & Prospecting. Here you can share finds and experience with thousands of members from all over the world

Join us and Register Now - Its FREE & EASY

THunting.com
Treasure Hunting & Metal Detecting Community
   
Advanced Search
*
Welcome, Guest! Please login or register HERE - It is FREE and easy.
Only registered users can post and view images on our message boards.
Did you miss your activation email?

Login with email, password and session length
Or Login Using Social Network Account
2
News:
Pages:  1 ... 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 ... 91   Go Down
Print
Share this topic on FacebookShare this topic on Del.icio.usShare this topic on DiggShare this topic on RedditShare this topic on Twitter
Tags:
0 Members and 12 Guests are viewing this topic.
Offline mazari
Copper Member
*

Join Date: Jan, 2015
Thank you3

Activity
0%

Algeria
Posts: 74
Referrals: 0

465.00 Gold
View Inventory
Windows XP
Windows XP
Firefox 12.0
Firefox 12.0

Awards

lone star
« Reply #740 on: July 05, 2017, 03:58:11 pm »
Go Up Go Down

hi for all.my dp didn't work i think the problem comes from the ne556 when i mesure the output at pin 9 (Supposed to be 9 volts)but i found 1.5volt i changed it with a new one but still the same voltage.please  did  anyone have an idea about what would be he problem?thank you in advance

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,28024.msg319485.html#msg319485




Logged
Offline Homefire
Global Moderator
Platin Member
*****

Join Date: Jan, 2009
Thank you662

Activity
0%
Male
United States
Posts: 15906
Referrals: 0

52360.00 Gold
View Inventory
Windows NT 10.0
Windows NT 10.0
Firefox 54.0
Firefox 54.0

Awards
« Reply #741 on: July 05, 2017, 06:11:50 pm »
Go Up Go Down

All I can think of is check the -E and +E  .  Are they correct?   

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,28024.msg319488.html#msg319488




Logged
Offline mazari
Copper Member
*

Join Date: Jan, 2015
Thank you3

Activity
0%

Algeria
Posts: 74
Referrals: 0

465.00 Gold
View Inventory
Windows XP
Windows XP
Firefox 12.0
Firefox 12.0

Awards

lone star
« Reply #742 on: July 06, 2017, 03:30:37 am »
Go Up Go Down

thank you.yes they are correct.but i can change frequency at pin 9 does it work?

Posted on: July 06, 2017, 02:01:07 am
the irf840 will get very hot when i connect the coil

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,28024.msg319490.html#msg319490




Logged
Offline Homefire
Global Moderator
Platin Member
*****

Join Date: Jan, 2009
Thank you662

Activity
0%
Male
United States
Posts: 15906
Referrals: 0

52360.00 Gold
View Inventory
Windows NT 10.0
Windows NT 10.0
Firefox 54.0
Firefox 54.0

Awards
« Reply #743 on: July 06, 2017, 06:57:11 am »
Go Up Go Down

  Check all components I indicated within the circle.

Your voltage drop on Pin 9 could be bad component, Partial Short , even a component  set with wrong orientation (FET, Diodes, C-32). 

Solder Bridges?,

C-32 Partial Short ? Orientation ?

Contamination on PCB.  Flux ?

Check all your associated Voltages to GND.

+E
-E
-12

HF

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,28024.msg319494.html#msg319494



There are 1 attachment(s) in this post which you can not view or download

Please register for viewing them.

D- Delta XR71 Latest schematic TroubleShoot.jpg


« Last Edit: July 06, 2017, 07:02:55 am by homefire »
Logged
Offline mazari
Copper Member
*

Join Date: Jan, 2015
Thank you3

Activity
0%

Algeria
Posts: 74
Referrals: 0

465.00 Gold
View Inventory
Windows XP
Windows XP
Firefox 12.0
Firefox 12.0

Awards

lone star
« Reply #744 on: July 06, 2017, 07:32:16 am »
Go Up Go Down

thank you for your help.I'll check in circle you selected and tell you the results

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,28024.msg319498.html#msg319498




Logged
Offline NE555
Bronze Member
*

Join Date: Jul, 2009
Thank you124

Activity
0%

Lithuania
Posts: 253
Referrals: 0

1540.00 Gold
View Inventory
Windows 7/Server 2008 R2
Windows 7/Server 2008 R2
Mozilla compatible
Mozilla compatible

Awards

Elite
« Reply #745 on: July 06, 2017, 08:08:55 am »
Go Up Go Down

rev 3.1 schematic. last.

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,28024.msg319504.html#msg319504



There are 1 attachment(s) in this post which you can not view or download

Please register for viewing them.

dp.jpg


Logged
Offline mazari
Copper Member
*

Join Date: Jan, 2015
Thank you3

Activity
0%

Algeria
Posts: 74
Referrals: 0

465.00 Gold
View Inventory
Windows XP
Windows XP
Firefox 12.0
Firefox 12.0

Awards

lone star
« Reply #746 on: July 06, 2017, 08:46:08 am »
Go Up Go Down

thank you for the schematic.

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,28024.msg319505.html#msg319505




Logged
Offline Homefire
Global Moderator
Platin Member
*****

Join Date: Jan, 2009
Thank you662

Activity
0%
Male
United States
Posts: 15906
Referrals: 0

52360.00 Gold
View Inventory
Windows NT 10.0
Windows NT 10.0
Firefox 54.0
Firefox 54.0

Awards
« Reply #747 on: July 06, 2017, 09:33:04 am »
Go Up Go Down

  Thank You.  I bet I have like seven versions of these things.   Angry

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,28024.msg319507.html#msg319507




Logged
Offline NE555
Bronze Member
*

Join Date: Jul, 2009
Thank you124

Activity
0%

Lithuania
Posts: 253
Referrals: 0

1540.00 Gold
View Inventory
Windows 7/Server 2008 R2
Windows 7/Server 2008 R2
Mozilla compatible
Mozilla compatible

Awards

Elite
« Reply #748 on: July 06, 2017, 12:11:15 pm »
Go Up Go Down

Quote:Posted by homefire
  Thank You.  I bet I have like seven versions of these things.   Angry


i had ordered a batch of the boards... Cheesy i did choice black color for silk  Great

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,28024.msg319513.html#msg319513




Logged
Offline mazari
Copper Member
*

Join Date: Jan, 2015
Thank you3

Activity
0%

Algeria
Posts: 74
Referrals: 0

465.00 Gold
View Inventory
Windows XP
Windows XP
Firefox 12.0
Firefox 12.0

Awards

lone star
« Reply #749 on: July 06, 2017, 12:20:14 pm »
Go Up Go Down

 my dp emit  continuous sound  i have changed  two diodes in parallel with irf840 .now i have to adjust it .many thanks for your help

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,28024.msg319515.html#msg319515




Logged
Print
Pages:  1 ... 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 ... 91   Go Up
Jump to:  

Powered by SMF 1.1.19 | SMF © 2005, Simple Machines | Sitemap
Copyright THunting.com