Jump to content
IGNORED

Intv Composite mod - Voltage drop


INTV123

Recommended Posts

I noticed that when my mod board is connected the 12v connection for the rf modulator drops to like 4v. also noticed that when its disconnected it's still only like 11.4v. And one of the chips on the board gets very hot. I'm wondering if this is why after a few seconds of use the picture becomes less stable (text characters basically shake) Also i took the cage off the rf modulator to make room so not sure if that has anything to do with my problem. 

 

been trying to get this thing to work for so long its kind of annoying. 

Link to comment
Share on other sites

The service manual says that the voltage at pin 2 of the modulator should be 6V.  So that sounds normal.

 

So you're using the traditional mod.  Did you order it or build it yourself?  You should probably check it for solder blobs and such.  Also, if the tracks are bare and on the bottom, make sure it's not touching anything metal.

 

And of course the most important question:  Without the mod hooked up, does the video distort?

Edited by ChildOfCv
Link to comment
Share on other sites

5 hours ago, ChildOfCv said:

The service manual says that the voltage at pin 2 of the modulator should be 6V.  So that sounds normal.

 

So you're using the traditional mod.  Did you order it or build it yourself?  You should probably check it for solder blobs and such.  Also, if the tracks are bare and on the bottom, make sure it's not touching anything metal.

 

And of course the most important question:  Without the mod hooked up, does the video distort?

i wasn't getting any signal without the mod. its one i made myself and i checked for shorts before i hooked it up, but i figured it woudn't do anything if there was a problem. 

Link to comment
Share on other sites

5 hours ago, ChildOfCv said:

The service manual says that the voltage at pin 2 of the modulator should be 6V.  So that sounds normal.

 

So you're using the traditional mod.  Did you order it or build it yourself?  You should probably check it for solder blobs and such.  Also, if the tracks are bare and on the bottom, make sure it's not touching anything metal.

 

And of course the most important question:  Without the mod hooked up, does the video distort?

so... the cap on the video input side is measuring a short. that may be the problem; ill have to go buy a new cap to replace it with and see if that works. just wondering how it died in the first place?

Link to comment
Share on other sites

7 hours ago, ChildOfCv said:

The service manual says that the voltage at pin 2 of the modulator should be 6V.  So that sounds normal.

 

So you're using the traditional mod.  Did you order it or build it yourself?  You should probably check it for solder blobs and such.  Also, if the tracks are bare and on the bottom, make sure it's not touching anything metal.

 

And of course the most important question:  Without the mod hooked up, does the video distort?

Never mind, didn't change anything. i checked the voltages on the transistors and they are similar but not exactly the same as what was listed on the wiki.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...