Consumer Electronics

Electronics Repair Questions? Ask an Electronics Technician

Ask an Expert,
Get an Answer ASAP!

I have two fobs for my k40 radar system. One has AAA

Customer Question
I have two fobs...

I have two fobs for my k40 radar system. One has AAA batteries and one has AAAA batteries. Neither of them work. Which battery is supposed to operate the fob?

Technician's Assistant: What's the make/model of your device? How old is it?

I don't know the make or model...is there some place I can look? I bought it and had it installed in 2010

Technician's Assistant: How long has this been going on? What troubleshooting have you tried?

I have no control over the radar (volume, on or off) for about 6 months. I opened the fob and saw that the batteries (AAA) leaked and replaced them but they still didn't work. Then I found another copy of the fob in a drawer that looked brand new (I probably put it aside when I bought the unit in 2010) and it had AAAA batteries in it but it doesn't work either.

Technician's Assistant: Anything else you want the Electronics Expert to know before I connect you?

Can I replace the fob and how do I find the make and model number of the K40 unit in my car?

Submitted: 10 months ago.Category: Consumer Electronics
Show More
Show Less
Ask Your Own Consumer Electronics Question
Customer reply replied 10 months ago
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call.
Customer reply replied 10 months ago
Let me know if you need more information, or send me the service offer(s) so we can proceed.
Customer reply replied 10 months ago
when are you going to call?
Customer reply replied 10 months ago
I have been waiting for your call for 8 hours! You took all my credit card information and said a call was imminent. WHEN are you going to call???
Answered in 11 hours by:
10/2/2017
Electronics Technician: Pete, Electronic Engineer replied 10 months ago
Pete
Pete, Electronic Engineer
Category: Consumer Electronics
Satisfied Customers: 20,586
Experience: Over 16 years of experience installing and repairing electronics.
Verified

Hi, I'm Pete. Welcome to JustAnswer! I'm reviewing your question now, and will post back with your reply ASAP.

Ask Your Own Consumer Electronics Question
Electronics Technician: Pete, Electronic Engineer replied 10 months ago

We will need to know which remote you have.
Can you see a model number on the K40 remote?
Most K40 remotes require a CR2032 cell battery, not AAA or AAAA.

Ask Your Own Consumer Electronics Question
Customer reply replied 10 months ago
I would like a call at(###) ###-####and the codes on the inside of the fobs are: SY 8-08 abd SY 10-07.
Customer reply replied 10 months ago
I sent you the codes inside the fobs. Again, they are SY 8-08 and SY 10-07. I would still like a call. Do NOT charge my credit card until I get a satisfactory answer!
Electronics Technician: Pete, Electronic Engineer replied 10 months ago

Sorry for the delay; I cannot find any information on these remotes - can you please attach a photo of them, showing the model number marking if possible?

Ask Your Own Consumer Electronics Question
Customer reply replied 10 months ago
Here are the numbers for the third time. I did not know you charge extra for a phone call so DON'T CALL! This is the most expensive, laborious non-helpful site in history. DO NOT charge my credit card unless I get some kind of helpful answer!!!!
Electronics Technician: Pete, Electronic Engineer replied 10 months ago

Thanks for the photos, I see the problem now - those are not the model numbers - they are manufacture date codes.

Can you see a model number anywhere?

Ask Your Own Consumer Electronics Question
Customer reply replied 10 months ago
No I'm sorry...there are no other numbers on the fobs. Is there somewhere I can look on the actual unit that might show it?
Electronics Technician: Pete, Electronic Engineer replied 10 months ago

Could you attach a photo of the front cover of the fobs and I will try to identify it?

Ask Your Own Consumer Electronics Question
Electronics Technician: Pete, Electronic Engineer replied 10 months ago

Thanks for the image!

This is a Calibre remote, and it used 2 x AAA batteries.

Ask Your Own Consumer Electronics Question
Electronics Technician: Pete, Electronic Engineer replied 10 months ago

If your remotes are no longer working with fresh batteries and clean contact terminals, then you can get a replacement remote from your local dealer:

http://www.k40.com/dealer-locator/

Ask Your Own Consumer Electronics Question
Electronics Technician: Pete, Electronic Engineer replied 10 months ago

Hi, just checking in on your question. If the issue is resolved or you do not need anymore help, please rate our session as 4 stars or more and press submit so I am credited for my time, otherwise please reply back so we can continue with the issue.

Ask Your Own Consumer Electronics Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with an electronics technicianLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Pete Your Own Question
Pete
Pete
Pete, Electronic Engineer
Category: Consumer Electronics
Satisfied Customers: 20,586
20,586 Satisfied Customers
Experience: Over 16 years of experience installing and repairing electronics.

Pete is online now

A new question is answered every 9 seconds

How JustAnswer works:

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

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 >

Related Consumer Electronics Questions
I have a Panasonic cordless phones. Can the batteries be
I have a Panasonic cordless phones. Can the batteries be changed out with an Enginizer AAA battery? … read more
Russell H.
Russell H.
Service Tech
Vocational, Technical or Trade Scho
4,832 satisfied customers
I left my car fob smart key in my car in the hot sun for 16
I left my car fob smart key in my car in the hot sun for 16 hours. The temperature in the car reached as high as 110 degrees; the temperature of my smart key in the hot sunshine might have been 125 de… read more
Richard
Richard
IT Manager
IT Manager, Consultant
3,474 satisfied customers
I'm just trying to find out the battery needed to replace in
I'm just trying to find out the battery needed to replace in the key fob of 2008 Land Rover LR2 … read more
Electrotech2017
Electrotech2017
Audio and Video Technician
Vocational, Technical or Trade School
227 satisfied customers
I have a 1999 Jeep Cherokee, bought used, with apparently a
I have a 1999 Jeep Cherokee, bought used, with apparently a factory-installed alarm system that is giving me problems. … read more
Russell H.
Russell H.
Service Tech
Vocational, Technical or Trade Scho
4,832 satisfied customers
I have bought a new Raymarine a78 touch screen display with
Hello. I have bought a new Raymarine a78 touch screen display with the 18" dome type radar. Have you got any advise to help me get started to learn how to use this rig? Not the shapest tool in the she… read more
Russell H.
Russell H.
Service Tech
Vocational, Technical or Trade Scho
4,832 satisfied customers
I have a question about a device. I use another technician a
I have a question about a device. I use another technician a believe but he's not in this category. You will think me crazy, but the photo I send is in a brand new Cadillac. I was informed it's likely… read more
Michael
Michael
Appliance Repair Technician
Bachelor's Degree
3,516 satisfied customers
I have a python alarm system. My key fob died last night and
hello, I have a python alarm system. My key fob died last night and when I charged it, it was no longer connected to my car. I cannot disable the alarm with the key fob but when I set off the alarm my… read more
Russell H.
Russell H.
Service Tech
Vocational, Technical or Trade Scho
4,832 satisfied customers
Just brought home a classic car from an estate sale. It has
Just brought home a classic car from an estate sale. It has some kind of Alpine anti theft installed. Looks like 8040. It started great till yesterday. Now it cranks but is dead in the water. What to … read more
Russell H.
Russell H.
Service Tech
Vocational, Technical or Trade Scho
4,832 satisfied customers
I purchased a 1995 Honda with a Mirage Alarm System. The
Hi I purchased a 1995 Honda with a Mirage Alarm System. The seller knew nothing about it. I found the Mirage company was purchased by AudioVoxx. AudioVoxx said it was a Code Alarm System I have since … read more
Michael Hannigan
Michael Hannigan
Bachelor\u0027s Program
239 satisfied customers
2003 ford explorer xlt ultra remote starter. how do I reprogram
2003 ford explorer xlt ultra remote starter. how do I reprogram it? I got new 12 volt batteries. i'V been using the regular ford remote but it doesn't have the remote start… read more
Michael Hannigan
Michael Hannigan
Bachelor\u0027s Program
239 satisfied customers
. I'm having issues with an audiovox remote starter. Fob
Hi. I'm having issues with an audiovox remote starter. Fob stopped working after I had a new car fob (push button start 2011 Nissan Juke)… read more
Michael Hannigan
Michael Hannigan
Bachelor\u0027s Program
239 satisfied customers
I have an Alpine Mobile Security System 8400A in a Jaguar XJS
I have an Alpine Mobile Security System 8400A in a Jaguar XJS V12 1989. My alarm system seem to be preventing my car from starting; the key fob no longer works at all. I tried to reset the starter cut… read more
Michael Hannigan
Michael Hannigan
Bachelor\u0027s Program
239 satisfied customers
There is black oily fluid under my duracell batteries sitting
There is black oily fluid under my duracell batteries sitting in the drawer. None of these batteries is corroded and they are not old batteries. It looks like the liquid is coming from the wood drawer… read more
Martin
Martin
Engineer
Bachelor's Degree
1,248 satisfied customers
K40 Calibre: Pertaining to a Calibre k40; the batteries have
Pertaining to a Calibre k40; the batteries have leaked acid/corrosion inside hand-held remote. Unit will not function, and new batteries don't help. Where can I purchase a replacement remote? Unit was… read more
Michael
Michael
Appliance Repair Technician
Bachelor's Degree
3,516 satisfied customers
I just bought a Sentry Safe Model SFW205FY2. I unscrewed the
I just bought a Sentry Safe Model SFW205FY2. I unscrewed the one shipping screw, put in 4 brand new AAA batteries and closed the door. When I went to test the Factory Code to open the door, the key pa… read more
Expert
Expert
For the past 7 years, all my cars have had fobs to detect my
For the past 7 years, all my cars have had fobs to detect my proximity to the vehicle instead of using a key or button. I want the same on my classic car, but when I search keyless systems, like Viper… read more
Russell H.
Russell H.
Service Tech
Vocational, Technical or Trade Scho
4,832 satisfied customers
HI we have a ER A520A Electronic Cash register. It appears
HI we have a ER A520A Electronic Cash register. It appears to have froze. It sayes Close Drawer. even when the drawer is closed. The key does not do anything it won't even turn off the till Should the… read more
info tech
info tech
Self Employed
Vocational, Technical or Trade Scho
344 satisfied customers
I bought a HP mouse a couple weeks ago at Staples, threw away
I bought a HP mouse a couple weeks ago at Staples, threw away all the info on it and it works great, providing you keep using new batteries. I bought a pack of 10 AAA Energizer batteries and there are… read more
Expert
Expert
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.

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