DM7025 Power Supply Resistor Value Help

Status
Not open for further replies.

nay27uk

Member
Joined
Aug 11, 2012
Messages
2
Reaction score
0
Points
0
Age
49
My Satellite Setup
DM7025
My Location
Leicester UK
Hi all I am calling a big favour from any DM7025 owners that would kindly do me a favour, or anyone that may know.

Ok I need some kind individual with a DM7025 to whip the top off of it and please get the the colors from R8 on the power supply board, R8 is located bellow the large heatsink that sits in front of the large 150uF 400V capacitor, you will see a long resistor under that heatsink with another not so long resistor right next to it this is R8 all I need is the exact band colours from that resistor.

That resistor has blown on mine, In fact it was glowing like an electric fire, so I think the bands have lost colour as they apear to be "Black Black Orange Black" but those colours add to nothing on most colour calculators so I am stuck without knowing the resistors exact banding colours.

I thank anyone in advance that can help me on this one, I emailed dream multimedia but as usual they never answer emails so I have no alternative but to ask some kind person to check thers for me.
 

Lazarus

Retired Moderator
Joined
May 29, 2009
Messages
27,105
Reaction score
8,687
Points
113
My Satellite Setup
80cm Motorised.
Several small Dishes.
Much else.
My Location
North York Moors
I can't help with the Resistor value, but there must be a reason for failure and it could be effect rather than cause.
 

zorbua

Regular Member
Joined
Apr 27, 2009
Messages
954
Reaction score
871
Points
93
Age
76
My Satellite Setup
Dreambox 8000 HD
Dreambox 800se
Dreambox 900UHD
Clark Tech 5000 HD
Numerous other receivers (Retired)
Dish Gibertini 1.5 M
Dishes Gibertini 1.2 x2
Dish Gibertini 1 M
My Location
Malta
As Tivu said look for the effect rather than the cause...having a resistor glowing in that manner shows the amount of current passing through it....check its immediate circuitry...
 

Piltdownpaul

No.1 Spike Milligan Fan
Joined
May 27, 2012
Messages
2,011
Reaction score
687
Points
113
Age
55
My Satellite Setup
Skybox F3,Icecrypt S3500HDCCI, Technomate TM3000D,TM5400Ci Super, Samsung HD HDD Freesat Box,60cm dish for freesat, TD88 dish on a Skybox F3 57E to 45W.
My Location
South Leicestershire (Fleckney)
zorbua said:
As Tivu said look for the effect rather than the cause...having a resistor glowing in that manner shows the amount of current passing through it....check its immediate circuitry...

Especially large capacitors or voltage regulators
 

nay27uk

Member
Joined
Aug 11, 2012
Messages
2
Reaction score
0
Points
0
Age
49
My Satellite Setup
DM7025
My Location
Leicester UK
Why dont people just answer a members question instead of asuming all members are thick. I already knew the cause of the problem and all electrolitic capactiors where already replaced by me only two months ago.

I did not come here asking what is the cause I asked WHAT VALUE IT WAS, I have fixed this now so no longer require your sarcastic silly answeres
 

satelliteman

Administrator
Staff member
Joined
May 7, 2007
Messages
12,039
Reaction score
387
Points
83
My Satellite Setup
See signature
My Location
Northants, Midlands UK & Lanzarote, Canary Islands
nay27uk said:
Why dont people just answer a members question instead of asuming all members are thick. I already knew the cause of the problem and all electrolitic capactiors where already replaced by me only two months ago.

I did not come here asking what is the cause I asked WHAT VALUE IT WAS, I have fixed this now so no longer require your sarcastic silly answeres


I think the regulars are only trying to help on this occasion. It was however a long shot you'd of found a member with a DM7025 willing to dismantle their machine to give you your answer. In anycase, please refrain from using this tone with other members.

We are however, glad to hear you have fixed the problem.
 

Lazarus

Retired Moderator
Joined
May 29, 2009
Messages
27,105
Reaction score
8,687
Points
113
My Satellite Setup
80cm Motorised.
Several small Dishes.
Much else.
My Location
North York Moors
Not sure how we could have guessed what other steps had already been taken.

It's often the case that an apparently simple question has far more to it - you might just have politely mentioned the other things you'd done instead of making untoward remarks.
 

Captain Jack

Retired human
Joined
Oct 21, 2006
Messages
11,832
Reaction score
8,018
Points
113
My Satellite Setup
See signature
My Location
North Somerset
Ungrateful.
 
Status
Not open for further replies.
Top