Consumer Electronics

Electronics Repair Questions? Ask an Electronics Technician

Ask an Expert,
Get an Answer ASAP!

Related Consumer Electronics Questions
CURRENT DRAW OF PHONE WHEN CHARGING. Please do not answer this
CURRENT DRAW OF PHONE WHEN CHARGING. Please do not answer this question unless you can attach a document that would confirm that your answer is correct. Imagine that I have a cellphone and the battery… read more
Rusty
Rusty
Audio Video Technician
Associate Degree
4,253 satisfied customers
I need to be able to test the output of a charger for a cellular
I need to be able to test the output of a charger for a cellular phone. I am in the industry, and purchase aftermarket cellular phone chargers in China. I am aware that many manufacturers put incorrec… read more
Rusty
Rusty
Audio Video Technician
Associate Degree
4,253 satisfied customers
need help designing and building a circuit to convert a 20
need help designing and building a circuit to convert a 20 v walwart (AC output) to dc. To start with, how do I pick a filter cap. Other questions: What kind of inductor do I use to filter the current… read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
32,308 satisfied customers
I want to convert my low voltage AC outside lighting to DC
I want to convert my low voltage AC outside lighting to DC and use LEDs. I have a 200W 12VAC transformer with a timer and the necessary LEDs. I'm thinking of adding a full wave bridge to the transform… read more
Russell H.
Russell H.
Service Tech
Vocational, Technical or Trade Scho
4,832 satisfied customers
i noticed in bose 802 and 901 wiring diagrams the individual
i noticed in bose 802 and 901 wiring diagrams the individual drivers are 4 ohms. the speakers are wired in such a way that the final load is 4 ohms. if that can be done then i should be able to do the… read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
32,308 satisfied customers
After disconnecting and then reconnecting my Yamaha AV-75Pro
After disconnecting and then reconnecting my Yamaha AV-75Pro Amp stopped producing sound. I noticed a couple of fuses had blown and had them replaced. With new fuses all I get is a loud feedback type … read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
32,308 satisfied customers
Is it true that AC adaptors consume power even when not connected
Is it true that AC adaptors consume power even when not connected to a device? If so, how can I know how much power they consume? Is it possible to connect several devices which need the same DC volta… read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
32,308 satisfied customers
I have a small circuit that goes from 120vac to 3.3vdc (LED)
I have a small circuit that goes from 120vac to 3.3vdc (LED) through a small voltage rectifier. It has two resistors. I need to know what Ohms for the resistors. I can provide a PDF diagram.… read more
Rod
Rod
Systems Engineer
Graduate Certificate
1,319 satisfied customers
I need to know how to test an LM741 Op Amp to verify that the
I need to know how to test an LM741 Op Amp to verify that the chip is good. I need to test voltage gain, bandwidth, common mode rejection ratio, input input impedance, output impedance, and voltage of… read more
Martin
Martin
Engineer
Bachelor's Degree
1,248 satisfied customers
I would like to find someone comfortable with Faraday math
I would like to find someone comfortable with Faraday math and theory: If i am spinning on a 13" radius 18 evenly spaced NORTH magnets at 13200 gauss and I space X coils of Y wraps Z rpm = VOLTS, AMPs… read more
Craig
Craig
Electrical Director
Electrical Automation Technician
749 satisfied customers
Martin I have another question I would like to ask but have
Martin I have another question I would like to ask but have no idea how to ask it and get you again?… read more
Martin
Martin
Engineer
Bachelor's Degree
1,248 satisfied customers
what are the resistor values for R16 and R17 on a HDRM-1 HD
what are the resistor values for R16 and R17 on a HDRM-1 HD Radio Module for a VM9313 Multimedia Receiver. Mine were burned and damaged somehow and my radio has no signal and will not work in radio mo… read more
Robotek
Robotek
Electronics Technician/Sound Engineer
Technical College
192 satisfied customers
I have a Kenwood VR-407 that keeps going into protection (turns
I have a Kenwood VR-407 that keeps going into protection (turns off & power light blinks). It started cutting out at medium volumes, but if you turned it back down, it would click and the sound would … read more
Stereowiz
Stereowiz
Electronic engineering (Lima)
589 satisfied customers
Hello Steve, I have a pdf diagram that explains everything. How
Hello Steve, I have a pdf diagram that explains everything. How do I send it to you ? Terry… read more
Dan - Master Tech
Dan - Master Tech
Small Business owner
Technical School
1,610 satisfied customers
I have a Kenwood TS-440S Amateur Transceiver. When I stored
I have a Kenwood TS-440S Amateur Transceiver. When I stored it 6 years ago it was functioning normally. Now; all is okay with the receive end but, the radio drops out of transmit mode and falls back t… read more
Rod
Rod
Systems Engineer
Graduate Certificate
1,319 satisfied customers
240V Appliance running on 200V? I have a 240V electric dryer;
240V Appliance running on 200V? I have a 240V electric dryer; Whirlpool Model WED5200VQ. Aside from the basic drying times being slower at a lower voltage, are there any short or long term problems op… read more
Neil
Neil
Associate Degree
3,548 satisfied customers
i have transformers to hook speakers up to a 70v system but
i have transformers to hook speakers up to a 70v system but dont have a wire diagram. there are colerd leads on ea side but they dont match the other side nor do the voltages ie; 1side:- gry-8ohm. / c… read more
Neil
Neil
Associate Degree
3,548 satisfied customers
I have a bose system,set up and working in my Bistro,comprising
I have a bose system,set up and working in my Bistro,comprising of 6 Panaray 502 speakers complete withthe relevant bose crossover equipment wired into the house amplification. I have purchased a pair… read more
KI4KMN
KI4KMN
Vocational, Technical or Trade Scho
130 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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.

VMUnited 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.

WindyUSA

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!!!!

AlexLos 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.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, 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.

EstherWoodstock, NY

< Previous | Next >

Meet the Experts:

Steve G.

Steve G.

Engineer

2,358 satisfied customers

VP of electronic repair company. Audio nut since 1974. Home Theater advisor. Vinyl holdout!

John

John

Engineer and electronic enthusiast for more than 12 years.

228 satisfied customers

I am here to help you!

Russell H.

Russell H.

Service Tech

4,832 satisfied customers

8+ years of professional experience

Louie

Louie

Technician

4,619 satisfied customers

25+ yrs. experience in the field and 5+ yrs. online, down to component level.

Greg A.

Greg A.

Engineer

1,394 satisfied customers

Engineer / Consultant

Rod

Rod

Systems Engineer

1,319 satisfied customers

FCC Commercial Licenses, BSCS, ASEET, 40+years Electronics & Communication Systems

Martin

Martin

Engineer

1,248 satisfied customers

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

< Previous | Next >

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x