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 ElectronicsPete Your Own Question
ElectronicsPete, Electronic Engineer
Category: Car Electronics
Satisfied Customers: 17671
Experience:  Over 16 years of experience installing and repairing electronics.
Type Your Car Electronics Question Here...
ElectronicsPete is online now
A new question is answered every 9 seconds

I have a Blau San Diego 530 head unit and the IR remote

Customer Question

I have a Blau San Diego 530 head unit and the IR remote stopped working a year ago or the unit quit responding. I gave up on it until now.
I'm trying to determine the correct battery size for the remote as it's possible I got the wrong one but can't find it in the manual or on the site.
Is there anything on the unit itself that could be the culprit as well?
Submitted: 1 year ago.
Category: Car Electronics
Expert:  ElectronicsPete replied 1 year ago.

Hi Robbie,

Expert:  ElectronicsPete replied 1 year ago.

The remote control uses a CR 2025 3 Volt battery.

Expert:  ElectronicsPete replied 1 year ago.

Test the remote control by viewing it on a digital LCD screen (e.g. on a camera or cellphone) - when you press the buttons, you should be able to see a faint blue light being emitted from the remote control when you view the emitter on a digital LCD screen.

If the remote control is emitting a signal then the fault is likely with the IR receiver on the head unit.