Sub won't work

hi, i have the same problem, with display port cable, sistem not working 100%, any help? thanks in advance and sorry for my english.

Sounds like a loose connection or a bad ground wire

Hi Kolya, Check around for a loose or broken cable especially around the battery connections. Regards John

Your first problem is to find out why the intermittent no-power problem. Honestly, that sounds like a loose conmnection somewhere. check all your grounds for clean and tight conditions Also, battery connections and alternator connections. Double check your power distribution center for any loose wires or poor connections. Once you solve that problem, then you can diagnose the other problems with poor idle and temp. gauge.

Hello,
there are three basic reasons why the leapster explorer won't bring out sound.
1. Defective speaker
The speaker of your leapster explorer maybe defective, this can make it not bring out any sound. Disassemble the leapster explorer, check the speaker part, test the speaker with a AA battery. If you hear any sound using the battery, then it means there is nothing wrong with the speaker.
2. Loose wire connection
Disassemble the leapster explorer, check the wires connecting the speaker to the board. Check for any wire cut, or loose connection which can cause the speaker not to bring out sound. . 3. Sound IC/Card/Board
If non of the above is the cause of the problem, then it means the leapster explorer is having a defective sound ic/board/card. There is an IC on the board of the leapster explorer which is responsible for sound. If this ic has a shot, there won't be any sound. If this be the cause, I think it's high time to took the leapster explorer to a repairman because this requires skill.
I hope the above is clear. If not, please let me know for further assistance.
Regards.

The manual is here...

http://www.pioneerprodj.eu/eur/products/42/99/S-21W/media.html

Flashing Blue is not defined in the manual.

Have you tried changing the Auto Standby switch to ON?

You can prove if the sub amp will respond to a known good input by TURNING ITS VOLUME DOWN tp start and just feeding it ANY RCA output from the receiver while playing, say, FM (to keep it simple). That way you would known in which direction the problem actually lies (internal or external).

Hissing? How loud? A sub isn't even capable of making high frequency sounds at normal volumes.

The Pioneer manual would tell you how to enable and test the subwoofer output.
Page 17 and the MACCV procedures on Page 33 (auto) or 43 (manual)

I would check the subs for resistance. If the Voice Coil of the subs shows an Open Circuit, your subs are blown. It is possible that the wiring inside the box has come loose, or the wiring from the amplifier to your sub box is loose or disconnected. I would then check the RCA or signal wires from the Head Unit to the Amplifier. The fuse is fine, and wouldn't make a difference in your situation.

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

Have you looked at the manuals?

If the unspecified sub isn't self-amplified it won't work with this receiver.

If it IS self-amplified you still needt o set up the receiver to run a sub.

Register and download the manual for free at retrevo.com

http://www.retrevo.com/support/Panasonic-SA-HE7-Receivers-manual/id/312ag700/t/2/

check for loose connections at your speakers and sub. If you have a loose connection, they can ground the other out... look closely for loose strands that may short it out. most of the amps have overload protection and cut out when there's a short/ground out issue..

I had this happen on my sub and it acted like the whole system was cutting out.