Resistor needed

Vipersan

Emmett Browns Ghost
Joined
Jun 29, 2009
Messages
10,918
Reaction score
6,663
Points
113
Age
66
My Satellite Setup
IP9000HD +
TD110 Dish and TD88 Dish in Tandem
66°East to 60°West.
AZbox PrmHD + OpnbxS9HD + Skybox + DrHD F15
2x VboxII AZ-EL
2 m+ Alcoa PF + BSC421 C-Band lnbf...
+SS2/TwHnS2-3200 pci/TBS6925 pci
1.5 Fortec Star -Gbox - HtoH Ku/Ka/C
My Location
UK
Never subscribed to anything.
The only thing I'm a 'lifetime' member of is TMF
A forum set up when the Television Magazine finally stopped publishing..
I had a subscription to that from about 1969..till it closed its doors.
great mag ..shame market forces pushed it to close..
 

Captain Jack

Burnt out human
Joined
Oct 21, 2006
Messages
11,797
Reaction score
7,980
Points
113
My Satellite Setup
See signature
My Location
North Somerset
TEAC PowerMax 1300 if that's any help.

@Vipersan sadly, the underside is full of tracks - no possibility for drilling any holes.
 

Vipersan

Emmett Browns Ghost
Joined
Jun 29, 2009
Messages
10,918
Reaction score
6,663
Points
113
Age
66
My Satellite Setup
IP9000HD +
TD110 Dish and TD88 Dish in Tandem
66°East to 60°West.
AZbox PrmHD + OpnbxS9HD + Skybox + DrHD F15
2x VboxII AZ-EL
2 m+ Alcoa PF + BSC421 C-Band lnbf...
+SS2/TwHnS2-3200 pci/TBS6925 pci
1.5 Fortec Star -Gbox - HtoH Ku/Ka/C
My Location
UK
TEAC PowerMax 1300 if that's any help.

@Vipersan sadly, the underside is full of tracks - no possibility for drilling any holes.
Damned shame ..
All the more reason to raise the resistor above the pcb when re-fitting ..as the board when scorched and hot becomes a (albeit) high value resistor between those tracks..
The more the carbonisation the lower the resistance.
 

PaulR

Dazed and Confused Admin
Staff member
Joined
Jun 28, 2003
Messages
18,023
Reaction score
4,046
Points
113
My Satellite Setup
-----------See sig-----------
My Location
Wirral, NW UK and Vaucluse, France.
It's much more likely to be a 390 ohm resistor. 390 is a preferred value in the E12 (10%) range.

Preferred Resistor Values
 

Channel Hopper

Suffering fools, so you don't have to.
Staff member
Joined
Jan 1, 2000
Messages
35,533
Reaction score
8,554
Points
113
Age
59
Website
www.sat-elite.uk
My Satellite Setup
A little less analogue, and a lot more crap.
My Location
UK
powermax-1200-2b-teac.jpg
Shares the same board as the 1200, but the specific resistor is covered.
 

Captain Jack

Burnt out human
Joined
Oct 21, 2006
Messages
11,797
Reaction score
7,980
Points
113
My Satellite Setup
See signature
My Location
North Somerset
That's the one. Going to replace all electrolytics, except the big one, since I've done that a few years ago, the D313 transistor and the resistor. If that doesn't fix it then.. well, it's only £10 for all the components.

I don't suppose you have a schematic with reference voltages at various points?
 

RimaNTSS

Super Moderator
Staff member
Joined
Jan 7, 2009
Messages
5,601
Reaction score
6,079
Points
113
Age
58
My Satellite Setup
Some SAT-related hardware.
My Location
N-E from Riga
Alex! I've looked in the box and found couple of 3W resistors one is 100 ohms and another one 120 ohms. If you put then in chain than you get 220 ohms. So, if you wish you can have them, if not they go back to the box forever. :-rofl2
 

Attachments

  • IMG_20170306_171022 (Large).jpg
    IMG_20170306_171022 (Large).jpg
    471 KB · Views: 13

Captain Jack

Burnt out human
Joined
Oct 21, 2006
Messages
11,797
Reaction score
7,980
Points
113
My Satellite Setup
See signature
My Location
North Somerset
Blimey, those look like something out of a 1970's Vega 101 record player :D

Thanks for the offer Rimant but only £2 delivered from eBay here.
 

PaulR

Dazed and Confused Admin
Staff member
Joined
Jun 28, 2003
Messages
18,023
Reaction score
4,046
Points
113
My Satellite Setup
-----------See sig-----------
My Location
Wirral, NW UK and Vaucluse, France.
Alex! I've looked in the box and found couple of 3W resistors one is 100 ohms and another one 120 ohms. If you put then in chain than you get 220 ohms. So, if you wish you can have them, if not they go back to the box forever. :-rofl2
What we used to call "short lead components"!
 

Captain Jack

Burnt out human
Joined
Oct 21, 2006
Messages
11,797
Reaction score
7,980
Points
113
My Satellite Setup
See signature
My Location
North Somerset
Indeed - looks exactly the same as mine from the outside but there are differences in PCB (mine looks like the picture you posted originally).
 

Channel Hopper

Suffering fools, so you don't have to.
Staff member
Joined
Jan 1, 2000
Messages
35,533
Reaction score
8,554
Points
113
Age
59
Website
www.sat-elite.uk
My Satellite Setup
A little less analogue, and a lot more crap.
My Location
UK
It suggests the Guillemot Corporation are the OEM manufacturer for these (and others), Hercules is how they are better known by on the continent.
 

Terryl

Specialist Contributor
Joined
Apr 14, 2011
Messages
3,246
Reaction score
1,932
Points
113
Age
82
My Satellite Setup
OpenBox X5 on a 1 meter motorized dish.
And now a 10 foot "C" band dish.

Custom built PC
My Location
Deep in the Boonies in the central Sierra Nevada mountains of California.
If you have over heating problems with a power resistor then try locating some of these hummers.(in the correct resistance value)

http://www.ohmite.com/cat/acl_hs1.pdf

And they are made in the UK, so they may be easy to find locally.

What I do is remove the problem resistor and solder in some stand off leads, be sure to bend them down below the circuit board (or above) and follow the trace a bit to allow for a solid attachment to the PCB, then solder the new resistor onto these leads, this also allows you to stand it up off the PCB allowing for air to flow.

They start at 5 watts so it may be overkill but it will never over heat again.
 

Captain Jack

Burnt out human
Joined
Oct 21, 2006
Messages
11,797
Reaction score
7,980
Points
113
My Satellite Setup
See signature
My Location
North Somerset
Transistor along with the resistor arrived today - replaced both and all is well! Didn't touch capacitors in the end as they looked in pretty good condition.
 

Lazarus

Retired Moderator
Joined
May 29, 2009
Messages
27,078
Reaction score
8,664
Points
113
My Satellite Setup
80cm Motorised.
Several small Dishes.
Much else.
My Location
North York Moors

PaulR

Dazed and Confused Admin
Staff member
Joined
Jun 28, 2003
Messages
18,023
Reaction score
4,046
Points
113
My Satellite Setup
-----------See sig-----------
My Location
Wirral, NW UK and Vaucluse, France.
Excellent work.
 

Terryl

Specialist Contributor
Joined
Apr 14, 2011
Messages
3,246
Reaction score
1,932
Points
113
Age
82
My Satellite Setup
OpenBox X5 on a 1 meter motorized dish.
And now a 10 foot "C" band dish.

Custom built PC
My Location
Deep in the Boonies in the central Sierra Nevada mountains of California.
If you didn't burn your fingers when putting them in then great job.

If you did burn your fingers then wash then off and soak then in a tumbler full of scotch for about 5, then drink the scotch, you wont feel the burn on your fingers.
 

jeallen01

Specialist Contributor
Joined
Oct 12, 2003
Messages
6,674
Reaction score
2,630
Points
113
My Satellite Setup
See Signature
My Location
Somewhere in England (possibly?)!
BTW, was it that large vertically-mounted (presumably power) transistor shown in one of your posted images, and do you know what it does?
 

Lazarus

Retired Moderator
Joined
May 29, 2009
Messages
27,078
Reaction score
8,664
Points
113
My Satellite Setup
80cm Motorised.
Several small Dishes.
Much else.
My Location
North York Moors
BTW, was it that large vertically-mounted (presumably power) transistor shown in one of your posted images, and do you know what it does?

When I was a Marconi Apprentice, we were led to believe that Power Transistors are there to protect the Fuse ..... ;)
 

PaulR

Dazed and Confused Admin
Staff member
Joined
Jun 28, 2003
Messages
18,023
Reaction score
4,046
Points
113
My Satellite Setup
-----------See sig-----------
My Location
Wirral, NW UK and Vaucluse, France.
Fastest fuse on three legs!
 
Top