Coby Radio Communications - Recent Questions, Troubleshooting & Support
How do I connect my coby bluetooth to my
Start with the headset turned off. Then, press and hold the Multifunction control for 8 seconds, until the blue and red lights flash alternately. It is now in pairing mode. Now, make your phone's bluetooth application search for new devices. After a while, 'CV-M225' will appear in the phone' screen. Select it and command the application to proceed. If a pairing code (or PIN, or passkey) is requested, enter '1234'. If pairing is successful, the headset will enter the stand-by mode.
By the way, in case your headset's user guide happens to be missing, feel free to download it from this location
Hope it works for you.
on May 14, 2010
DW505 type 3: What is the resistance specification for armature opposing pole pairs? Also, isn't each pair supposed to be isolated from the other?
Measuring across the commutator opposites is a rough check - if each pair has the same resistance it is probably good but even then there are no guarantees. I have never seen the armature resistance stated for any motor though that doesn't mean such figures don't exist.
It would seem logical that each pair should be isolated but that generally is not how the armature is wired and each commutator segment is the termination of two coils.
In reality there is only three ways to test an armature - either build it into a motor and see if it performs ok, use an automated motor fault analysis machine or one of the dedicated armature testers such as an armature growler.
3 days ago
Need a schematic for a victrola radio model vta 750
The fashion for nostalgia radio with a modern sound has brought about a clutch of models from only a few manufacturers.
I have only encountered one such that was basically an in-house cabinet with bought in internals, the quality of which was probably reflected in the price and as this was from the lower price bracket the internals were from different sources and badly matched.
I know of no reason to assume other models would be substantially different because although popular they haven't sold in the high numbers that would justify purpose built internals and so the chances are an experienced audio engineer would probably recognise the circuit board as being from a popular hi-fi and be able to provide you with details.
on Jun 22, 2020
These radios are great but why put talkback on a radio when itll only work on am..we use fm mainly in the uk..is there anyway of modding it so itll work on fm please
The short answer is no -- the difference between AM and FM is too great though some CB radios were made dual mode, like the President Veep I used to own.
Some CBs that found the way into Britain were powerful sidebanders that offered similar capabilities to unlicensed CB-ers to that official radio hams had to sit exams to enjoy. Some radio hams found it cheaper to have those top-line CBs modified for use on the 11 metre amateur band.
It would be no help to you to obtain a standard FM CB as when the UK was forced to legalise CB radio under the Treaty of Rome, they legalised it at a different frequency as the American frequency was already allocated to radio control, bleepers and other things. Special CB sets were manufactured for the UK market.
on Jun 15, 2020
Motorola D700 (Ex Dolphin Tetra) Radio
HI.... yes ....it is possible to program them in DMO, this is done in the RSS,.... so I am advised directly from inside Motorola .... but a copy of the RSS is just not available.... ... if fact Motorola seems to officially deny the D700 ever existed ... good luck in finding a solution.
on Jun 12, 2020
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