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Jvc th-25a protection - JVC TH-A25 System

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Jvc vx th u1 manuals


Isn't Google wonderful? :)

http://www.jvc.dk/files/instruction_manual/th-u1-jda.pdf

Jun 25, 2014 | JVC Audio Players & Recorders

1 Answer

JVC TH-S11 ...Shuts off after turning on within seconds.


Generally speaking, an amp attempts to protect itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.

Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.

You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.

If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.

If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.

Jun 04, 2011 | JVC TH-S11 Theater System

1 Answer

Jvc thc 30 wont power on


http://www.retrevo.com/support/JVC-TH-C30J-Home-Theater-Systems-manual/id/318ci572/t/2/

Generally speaking, an amp protects itself from heat, shorts and overloads.

Overloads can be from excessive periods of high output and shorts would be wiring issues or a speaker blowing up.

You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.

If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.

If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced hands-on tech.

Jan 16, 2011 | JVC TH-C30 System

1 Answer

JVC TH-C30 Digital Theater System


If there is no power at all, then try bypassing surge protector, check power cable, and check if power cord is fused.

If unit has power but does not start, then it is on protection.

Protect mode will kicking whenever a fault is detected.

Causes that can start protect mode are:

Electrostatic harges on internal circuits.
Leave the unit unplugged for power for one hour or so, this will allow discharge.

Bad speaker wiring.
Check speaker wiring, try unplugging and plugging back, or start after removing one speaker at the time.

Internal fault.
Internal fault is the natural cause for protect mode. If all the above did not work, then the problem is a blown component or an internal fault. In this case the unit must be taken apart , tested and repaired by an experienced person.
If the unit is less than one year old, or if you want to get service, call Sony at the phone number listed on the product documentation.

Regards.

Mar 11, 2009 | JVC SP-PW100 Subwoofer

1 Answer

Protection apears on power up then shuts down??? a fuse or something i can repair?


When problem accures in Amplefier section, protection actviates to protect speakers and further damage in unit. I think, Amp got defective in your system and needs qualified service person.

Jul 22, 2008 | JVC TH-A25 System

1 Answer

Protect message


Protect means that a problem was dtected and the output amplifier section has been disabled to prevent further damage. The typical failure parts are the output transistors. Expect a parts cost between $15-$40. Add in the local labor rate for the total repair cost.
Dan

May 28, 2008 | JVC HX-D7 DVD Compact Stereo Audio / Video...

2 Answers

Jvc th-m45 shut off


shut off audio system is performed to protect it from damage due to high current consumption or short circuit in speakers try to disconnect subwoofer first and check if it is ok. the problem in your subwoofer or its cord-change the cord and check if it is ok thats fine if not change subwoofer.do the previuos for all speaker one by one.
if all above failed you must contact service center for help.

Apr 06, 2008 | JVC TH-M45 System

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