Getting a JVC CD receiver to work

DeadSpeaker · 27th July 2009, 04:26 PM

I recently acquired a JVC KD-S31 CD receiver. It will load and eject CDs, but will not play them or let me do anything else. It's like it's not turning on fully. I tested it out on a computer power supply. I connected the ACC wire, the power wire, and the remote-turn-on wire to the positive of the supply. The ground is connected to the ground. Am I missing something? Thanks.

Perry Babin · 27th July 2009, 04:40 PM

Some head units will do this if the ignition wire has no voltage. If there are no blown fuses and both the ignition and backup power wires have 12v where the plug goes into the head unit, there may be a broken connection on the connector inside the head unit.

tsmith1315 · 27th July 2009, 05:23 PM

Quote:

Originally posted by DeadSpeaker
and the remote-turn-on wire to the positive of the supply.

The remote turn on is a 12V output from the JVC. Did you connect it to a 12V output from the power supply?

DeadSpeaker · 27th July 2009, 06:32 PM

Yes all 3 12v wires are connected to the 12v power supply. I carefully removed the circuit board and tested the wiring harness. All of the 12v wires are electrically connected to the pins on the circuit board. Nothing looks burned and there isn't any smell.

Perry Babin · 27th July 2009, 06:44 PM

Is it possible that the detachable face isn't making good contact with the head unit?

DeadSpeaker · 27th July 2009, 07:30 PM

the contacts look clean

DigitalJunkie · 27th July 2009, 08:01 PM

The remote turn-on wire should NOT be connected to the 12V supply.

tsmith1315 · 27th July 2009, 08:09 PM

Quote:

Originally posted by DeadSpeaker
Yes all 3 12v wires are connected to the 12v power supply.

If the remote-on is a standard remote output (usually blue) for turning on other components, it shouldn't be connected to 12V. For testing, it doesn't need to be connected at all.

Applying 12V to that lead may or may not prevent the JVC from turning on normally.

edit: pardon my simultaneous post w/DJ

Perry Babin · 27th July 2009, 09:31 PM

On the face, do all of the buttons feel like they're in good working order (all click when pressed, none stuck down...)?

DeadSpeaker · 28th July 2009, 09:39 PM

None stuck. Is there something I can test for electrically?

27th July 2009, 04:26 PM	#1
DeadSpeaker diyAudio Member Join Date: Jul 2007	Getting a JVC CD receiver to work I recently acquired a JVC KD-S31 CD receiver. It will load and eject CDs, but will not play them or let me do anything else. It's like it's not turning on fully. I tested it out on a computer power supply. I connected the ACC wire, the power wire, and the remote-turn-on wire to the positive of the supply. The ground is connected to the ground. Am I missing something? Thanks.

27th July 2009, 04:40 PM	#2
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	Some head units will do this if the ignition wire has no voltage. If there are no blown fuses and both the ignition and backup power wires have 12v where the plug goes into the head unit, there may be a broken connection on the connector inside the head unit. __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

27th July 2009, 06:44 PM	#5
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	Is it possible that the detachable face isn't making good contact with the head unit? __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

27th July 2009, 09:31 PM	#9
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	On the face, do all of the buttons feel like they're in good working order (all click when pressed, none stuck down...)? __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

27th July 2009, 06:32 PM	#4
DeadSpeaker diyAudio Member Join Date: Jul 2007	Yes all 3 12v wires are connected to the 12v power supply. I carefully removed the circuit board and tested the wiring harness. All of the 12v wires are electrically connected to the pins on the circuit board. Nothing looks burned and there isn't any smell.

27th July 2009, 07:30 PM	#6
DeadSpeaker diyAudio Member Join Date: Jul 2007	the contacts look clean

27th July 2009, 08:01 PM	#7
DigitalJunkie diyAudio Member Join Date: Apr 2003 Location: Portland,Oregon Blog Entries: 4	The remote turn-on wire should NOT be connected to the 12V supply.

28th July 2009, 09:39 PM	#10
DeadSpeaker diyAudio Member Join Date: Jul 2007	None stuck. Is there something I can test for electrically?

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
I2S from USB receiver to dac	morfic	Digital Line Level	2	31st March 2009 07:21 AM
AV receiver mod	Assyst1606	Solid State	1	1st March 2007 04:48 AM
Hey i need help with receiver........EXPERTS HELP(two channel receiver)	Andre Baptiste	Parts	1	1st May 2004 10:20 AM
HT without a HT receiver	paulspencer	Digital Source	28	12th December 2003 08:29 PM
Looking for FM receiver	sobazz	Analogue Source	8	31st October 2003 01:28 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read