How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask sany Your Own Question

sany
sany, Engineer
Category: Consumer Electronics
Satisfied Customers: 198
Experience:  B-Tech degree in electronics and communication
17828513
Type Your Consumer Electronics Question Here...
sany is online now
A new question is answered every 9 seconds

marantz sr4002 with fast blinking standby light - all else

Resolved Question:

marantz sr4002 with fast blinking standby light - all else dead? Glass fuse inside unit is ok.
Submitted: 5 years ago.
Category: Consumer Electronics
Expert:  sany replied 5 years ago.
The unit is in "protect" mode thats why you are getting blinking standby light . This means that there is a problem in the final output section. The most common fault is bad output transistors. Expect a parts cost of abput $15-$30 in parts plus the local labor rate for a repair cost.

first you will ahve to restore the prtective circuit, as its protecting the other important circuits.

Thanks
Customer: replied 5 years ago.
What is involved with restoring the protective circuit??
Expert:  sany replied 5 years ago.
protective circuit is nothing but a circuit which protects the other main parts of the Circuit.
If some problem in the main circuit , will be handled by the protective circuit.
IF something got screwed in the main board then the TV swap the mode to protective or Stand by.

in this state , the main circuit will be safe from further damages.

First you will ahve to check the possibe damage to the trasnsitos/capacitos/resistors.

once you corrected the problem , mode will be chenged to normal and you can see the video.

its better to call a proffessional to get this done.

while doing that, check the protective circuit also , because it got screwed means evrything will be damaged soon or later.

Thanks
sany, Engineer
Satisfied Customers: 198
Experience: B-Tech degree in electronics and communication
sany and 9 other Consumer Electronics Specialists are ready to help you

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • I'm screaming your praises!! WOW! I plugged my TV in and bammo! The picture came on bright and beautiful. What a relief! YOU saved me some money and headache. VM United States
< Last | Next >
  • I'm screaming your praises!! WOW! I plugged my TV in and bammo! The picture came on bright and beautiful. What a relief! YOU saved me some money and headache. VM United States
  • I love this site! $9 instead of a repairman or new/used frig can't be beaten. This older woman will worry less now that she knows about this site. Bless you all. Windy USA
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
 
 
 

Meet The Experts:

 
 
 
  • John

    Engineer and electronic enthusiast for more than 12 years.

    Satisfied Customers:

    163
    I am here to help you!
< Last | Next >
  • http://ww2.justanswer.com/uploads/CO/ComputEngineer/2012-2-6_20858_20111114201751jalogoold.200x200.64x64.jpg John's Avatar

    John

    Engineer and electronic enthusiast for more than 12 years.

    Satisfied Customers:

    163
    I am here to help you!
  • http://ww2.justanswer.com/uploads/ST/Steve555/2013-6-14_144343_Depositphotos4247517S.64x64.jpg Steve G.'s Avatar

    Steve G.

    Engineer

    Satisfied Customers:

    2244
    VP of electronic repair company. Audio nut since 1974. Home Theater advisor. Vinyl holdout!
  • http://ww2.justanswer.com/uploads/benimur/2009-03-29_003401_id_2.jpg Louie's Avatar

    Louie

    Technician

    Satisfied Customers:

    3715
    25+ yrs. experience in the field and 3+ yrs. online, down to component level.
  • http://ww2.justanswer.com/uploads/OR/OriginalSeadog/2011-7-22_191917_ProfilePicture.64x64.jpg Rod's Avatar

    Rod

    Systems Engineer

    Satisfied Customers:

    1317
    FCC Commercial Licenses, BSCS, ASEET, 40+years Electronics & Communication Systems
  • http://ww2.justanswer.com/uploads/SI/SiliconSavant/2012-6-27_192716_201264172651profile.64x64.jpg.64x64.png Daniel's Avatar

    Daniel

    Electrical Engineer

    Satisfied Customers:

    1177
    BSEE (Electrical Engineer), 10+ years electronic design experience ,chip, board, component expert
  • http://ww2.justanswer.com/uploads/LI/littlerusty2005/2012-1-11_574_rusty2.64x64.jpg Rusty's Avatar

    Rusty

    Customer Service

    Satisfied Customers:

    1167
    Over 20 years electronics experience. How may I help you today?
  • http://ww2.justanswer.com/uploads/greenowl/2008-12-31_012617_martinphoto.jpg Martin's Avatar

    Martin

    Engineer

    Satisfied Customers:

    1113
    16 years, include works in aluminium plant, industrial machinery, military weapons, programming