Question about Car Audio & Video
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Posted on Jan 02, 2017
SOURCE: JVC KD-S640 pinout needed
For ten bucks, you can buy a new connector: http://www.jvcservice.com/store/ProductDetail.asp?part=JV16-0001A To figure out how to wire it: http://books.jvcservice.com/download/256614688/28879.pdf Page 25 describes the color of the wiring in the harness.
Posted on Mar 29, 2007
(There are different versions of the ba-200, so I'm assuming they al use the same wiring/pinout...) if you look at the amp on the enclosure(right-side up... so the writin goes left->right): The top left pin is #1, beside it is #2, then #3. The bottom left pin is #4, beside it is #5, then #6. #1 Right speaker positive input #2 Empty #3 12 Volt Constant Power #4 Left speaker positive input #5 Remote turn on / Acc power input #6 Ground Now there's supposed to be a 15-amp fuse on pin #3 (12v constan power).
Posted on Jul 27, 2007
The fault is probably at either end. Yes, it could have been reversed, but most radios are easily protected against this.
If you are getting no lights or anything when keying mic, then there may be an inline fuse along the cable. As you are getting continuity, open the case up, and look for any evidence of heat at the components nearest the power supply - particularly the protection diodes - Black cylinrical components with a silver band.
You really need a meter or scope to go in much further, and check supply voltages between components and -ve, and downloading a copy of the circuit diagram will help this.
The other main fault is usually the output power transistor - which needs a sink for all the power getting thrown at it. If you remove the antenna, it can quickly overheat and fail.
Both components can be checked in-situ for voltage (or not) but the output can only be tested with a scope.
Of course - the "on" light could have blown, so may be functioning without indications, - but I doubt it.
Also check Mic outputs on the plug to make sure that is working. Some units won't function if this is disconnected.
Posted on Jan 08, 2009
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