Why does my JVC model KD r660 CD receiver keeps saying send service protection

SOURCE: Setting Clock for JVC-KD-G420

Here is the link for the manual http://books.jvcservice.com/download/289413083/38360.pdf page 7 Hope this helps :)

SOURCE: Unable to play MP3 CDs on JVC KD-G140

I had this same problem and realized after reading the manual that this model does not play mp3's. They use the same manual for the g140 and the g240 (the model which plays mp3s).

SOURCE: How to wire car speaker to JVC CD Receiver.

Hello anstrayer,

On your JVC wiring harness the speaker wire colors are:

Left front (+) - White
Left front (-) - White/Black
Right front (+) - Gray
Right front (-) - Gray/Black
Left rear (+) - Green
Left rear (-) - Green/Black
Right rear (+) - Purple
Right rear (-) - Purple/Black

You can download a the manual from Crutchfield. A complete wiring diagram with color codes is on page 41.

Hope this helps.

josetejas

• 300 Answers
• Posted on Jan 25, 2010

SOURCE: need to wire JVC model KD-G340 into a 97 Kia Sephia

Do not cut the wires from the car. Instead, call Crutchfield at 888-955-6000 and order the adapter part number 120701003. When you call them, ask for color coding. For JVC, refer to the attached picture. Match the adapter color code with that of JVC. If the adapter color code is the same, then connect ground (black), battery (yellow), and wire from ignition switch (red) securely. Turn on the car and see the radio works. If it works, connect one by one speakers and confirm. Remember, perfect connection gives reliable installation.

SOURCE: JVC KD-R610 is stuck in Protect mode

Try disconnecting your battery, reconnecting it, and resetting your stereo. If that doesn't work, the constant power (yellow wire) or ignition wire (red wire) may have come in contact with ground or isn't properly connected. Make sure everything is connected properly and try resetting your stereo. If it is still flashing "protect", the unit needs servicing Contact JVC Customer Care Center at: 800-252-5722.