Question about JVC DX-T9 System

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Power will shut down after few minutes when volume reaches 12

If volume control up to 10 only, my JVC-DXT9 is ok.But starting 11 or 12 up, the power will cut off then you have to switch on again. The louder the sound, the shorter the time the power will cut off.

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If you check at the back of your hi-fi, you'll see a projection at the top where the cooler fan is located. The most likely reason is that your fan is not working (as required). In this system, the fan is turned on automatically at high volumes >=10, because then, the amplifier starts to get a temperature rise and without proper cooling the system might fault.
Try check and see if at these high volumes the fan is running, if not, then that's what needs to be fixed. Alternatively you can try running an external fan to see if it will produce the desired cooling effect.

Posted on Jul 02, 2009

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1 Answer

My stereo keeps turning off when I listen to a station 101.5 in New Jersey


The only thing that can be is that you have set a timer "sleep" function for that station. I have looked at the manual and it states you can programme a sleep setting for a radio station.
The instructions are on page 12. But I have extracted them below:

1 Press the ON/STAND-BY button to turn the power on.

2 Press and hold the CLOCK/TIMER button.

3 Within 10 seconds, press the or button

to select "ONCE" or "DAILY", and press the MEMORY

button. Set the clock to the correct time if "ONCE" or

"DAILY" does not appear.

4 Within 10 seconds, press the or button to select

"ONCE SET" or "DAILY SET", and press the MEMORY

button.

5 To adjust the hour, press the or button and then

press the MEMORY button.

6 To adjust the minutes, press the or button and

then press the MEMORY button.

7 Set the time to fi nish as in steps 5 and 6 above.

8 To select the timer playback source (CD, TUNER, USB,

iPhone/iPod, TAPE or AUDIO IN), press the or

button. Press the MEMORY button.

When you select the tuner, select a station by pressing

the or button, and then press the MEMORY

button. If a station has not been programmed, "NO

PRESET" will be displayed and timer setting will be

canceled.

9 Adjust the volume using the VOLUME control, and then

press the MEMORY button. Do not turn the volume up

too high.

10 Press the ON/STAND-BY button to enter the power

stand-by mode. The "TIMER" indicator lights up and

the unit is ready for timer playback.


11 When the preset time is reached, playback will start.





The volume will increase gradually until it reaches the

preset volume. The "?" or "DAILY" indicator will blink

during timer playback.

12 When the timer end time is reached, the system will

enter the power stand-by mode automatically.

Once timer:

The timer will be canceled.

Daily timer:

The timer operates at the same time every day. It

will continue until the daily timer setting is canceled.
Cancel the daily timer when it is not in use.

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1 Answer

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The amplifier is over heating. Probably the emitters, drivers and voltage regulator is bad. I suggest a clean sweep replacing the power pack integrated amp, all emitters, mosfet regulator, and SRC power switch start up control.

Feb 08, 2014 | Panasonic Home Theater Systems

1 Answer

Philips hsb2313 topow power supply


The shutdown seems to be caused by overheating of the heatsink electronics. My unit has a fan on the heatsink. This fan started making a noise. When I remove it the system shuts down as described. I will try to replace the fan.

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1 Answer

Help


Hi,

Take every single cable out of the unit, now power on the unit.

If the power protection still shows then there is an internal fault, usually a short or a component defect.

If it powers on ok, switch off and insert 1 speaker at a time and power on the unit until the protection mode comes on again, the last speaker you have put in has overloaded it for some reason, also as you are trying each speaker use the volume and bass controls to see if there is an internal overload.

Thats as much as I can offer you until you narrow the fault down to the unit or one of the speakers.

Cheers

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1 Answer

Shuts Down


power supplly printed bord faulty or power amp output stage heating more than the rated temperature can occure this situation.please check the ventilation system first and check the power and power amp section for loose connections.if youhave electronic knowledge .

nuwan.

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3 Answers

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I know this is an old topic however someone somewhere might benefit from this feedback. I purchased the JVC TH-S5 service manuals from ManualsParadise.com and after metering all the supplies as 'OK', I then focused in on the 'common' lines associated with the two onboard power amps IC's (STK413-400) and found that they were missing a bias supply. This is derived from the onboard 40v Supply 'dropped' down by a 47 ohm resistor R2702 (rated 1/4 watt but advised to make this at least 1/2 watt). The resistor was found to be open circuit i.e. a very high ohmic value. Looking at the circuit diagram again, I would feel that this is going to be a common issue with this unit.

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1 Answer

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1 Answer

RCA RT2250 consistant shutting off in Satalite mode.


Mine will always just turn off every minute or so after a hard shut down(ex: power outtage). I have to turn it back on and then hold the set button for a few seconds, then it stays on, until i turn it off manually, since the remote won't turn it off.

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1 Answer

Systems shuts off if sound gets too loud.


Yes, i had this same problem. If it was too loud, at level 37+, any loud boom would shut down the subwoofer, subsequently shutting down the speakers. As such, I figured it might have been the 8 pin dim cable, but that wasn't it. What solved the problem was lowerin the BASS level. Not the level on the subwoofer, but the actual BASS level. I had it at +10 (the max) and it was too much for the system to handle. I don't think I ever had it like that so I'm assuming someone, maybe my daughters, moved the settings. But anyway, moving the bass level back down to either 0 or +3 at most maintains the "boom" effect of the subwoofer minus the shutting off of the system.

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