[TechAssist] Re: Dish Network DP301 Satellite receiver problem
- From: "majorthom@xxxxxxxxxxxxx" <majorthom@xxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Sun, 19 Sep 2004 09:46:19 -0700 (PDT)
I never believed in pulling caps.What I do and it's fast and effective is to
display a NTSC signal which will indeed show the problem since after stripping
the carrier,the different colors occupy different spectra.Select a electrolytic
that covers all voltages of the existing caps and lets say 10 ufd .Stay away
from sensitive circuits[uproc etc]and just go down the video chain while
watching the signal.If you see a slight change check the cap your'e bridging
and bridge again w/proper cap.It will be dramatic and obvious.Don't forget that
satt. Reeivers have raw video as well as regular video and those ckts need to
be checked. Check raw video first if you can .Let me know..........Regards,
Pete
LeRoy Westlund <llw@xxxxxxxxxx> wrote:
Hi Gang,
This unit is causing a severe video smear, and low brightness range.
I'm almost sure there is a bad e-cap either in the power supply, or a video
ckt.
Has any of you guys seen this problem before ?
I know there is an exchange price from Dish on these units,...but,...why
should we miss out on an opportunity to make a few bucks on a repair like
this ?
The customer is willing to pay, and it would only take about 30 minutes to
fix it if I knew which cap was causing the problem.
Don't make me check them all,...cause I hate pulling e-caps on this type of
PC boards.
TIA,...and hoping.
LLW
LeRoy Westlund
Westlund TV & Electronics
97 North Main "Where there's a will,...
Centerfield, UT 84622-0087 There's always a way."
Ph./Fax 435-528-3822
mailto:LLW@xxxxxxxxxx
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Peter Neal
Neal Electronics
1905 E. Wm.Cannon
Austin,TX 78756
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