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Receiver turned off after power on


I can see two possible problems.1: your receiver wants to take too much current and it shuts down the relais to the speakers, or,2: The hold contact of that relais cannot keep it's voltage and shuts off the speakers after a short time.
Check your end transistors for shorts and/or see what the voltage does at this relais. A faulty capacitor perhaps?

Feb 24, 2014 | Pioneer VSX-920-K A/V Receiver

1 Answer

Splitting a satellite signal to 2 tvs


Do you want to use a separate satellite receiver on each tv or just want to send the picture from one receiver to two tv's? It makes a huge difference. If you do it wrong you can damage both the satellite receiver and the tv, so be careful. Using separate receivers requires a multi switch near the dish. This is necessary because the satellite receiver sends a voltage up to the dish to operate the elecrtonics there. That voltage will damage the dish without that multi switch installed. an ordinary splitter will get the picture from one receiver to two or more tv's as long as the cable length is not too long.

Dec 29, 2013 | Televison & Video

1 Answer

Kenwood krf-v4060d receiver display problem, its work for some time but after that no display, sound work fine but not able to see any display on receiver


it is possible that the voltage to the filament of the display is absent. This is normally a 3.6 volt AC which comes from the transformer and it can be lost a the connectors or the circuit board. It will be best to use a multimeter to trace the voltage to the display unit. check the voltage to the display driver IC, check the negative grid voltage to the display , if there is an open resisitor of the feed to the display voltage to the IC. Finally check the continuity of the filament of the display unit.
The driver IC is also a suspect , sumulate heat and see if the fault comes up easily which can confirm the case.

Sep 05, 2011 | Kenwood KRF-V4060D Receiver

1 Answer

How to program kvh tracvision a5 antenna to work


NEWER connect A7 reciver box to A5 dome. A5 receiver box output voltage is 32VDC, and A7 receiver box output voltage is 40VDC. So, if you connect A5 dome to A7 reciver box, you will damage it.

Jun 19, 2010 | KVH TracVision A5 Car Video Player

1 Answer

Voltage on subwoofers input


Is the subwoofer a self-powered unit? If yes, it would have a minimal voltage showing on a meter. If the input is a line input, it would not have a problem taking in a line output (not speaker - never!) from your receiver. If the only output you have from your reciever is a speaker out, then purchase an L-Pad type speaker to line matching transformer. You can also take one of the input channels coming from the source and Y out a side to the sub pre receiver, but you then you would need to be able to adjust levels on the subwoofer independently from the receiver.

Jul 24, 2009 | Audio Players & Recorders

1 Answer

When I turn on my receiver, it automatically turns off and the power button flashes red. Prior to shut down, the receiver display notes "Tuner Ext. In" What's the problem? It has worked p


Protection circuit turns off the unit because of critical conditions- wrong power supply voltages or one of the power amplifier channels is bad. First, visual inspect the power amp board near the heat sink for burned resistors, test outputs for a short. If there are no problem you may try to turn the unit on and you have several second before it shuts down to check power supply voltages and power amp output voltages and bias, then ... Long story you'd better take it to a repair shop or repair at ebcelectronics.com

May 09, 2009 | Denon AVR 2808Ci Receiver

1 Answer

DTV H20-600


You could check the voltages yourself to see if they are low. The horizontal polarity needs about 19 volts and the vertical polarity about 14 volts to work properly. If those voltages are lower by 25%, the receiver might failed to scan and that is when it locks up because is trying to find signal. The other issue could be a defective power supply if the receiver does not work after that 4 hours. There could be some capacitors that lost their dielectric strength causing the drop in voltage.
Let me know if you need further assistance.

Nov 01, 2008 | Philips DIRECTV H20 DTV Receiver

2 Answers

Directv h20 receiver has low volyage to the lnb.


Check inside the receiver for a defective LM317 IC or a TIP42C transistor, but before that you should check for proper voltage from the power supply to that IC.
LM317/TIP42C control the switching of voltages that power up the LNB, you should be getting 14 volts for vertical channels and 18 volts for horizontal.
Good Luck.

Mar 08, 2008 | Philips DIRECTV H20 DTV Receiver

1 Answer

Plugging in with multiple voltage requirements.


no... it will put out 220volts, same as the wll socket voltage. you will need a 220v to 110v stepdown transformer to run the sub.

Dec 15, 2007 | Onkyo HTR500 Receiver

1 Answer

Sony STR-DE705 question


yes you can use a step down converter,but remember to use a higher rating converter.if your receiver need 100w ( or 1A )then you need a converter at least give 150w ( or 2A ).

Aug 06, 2007 | Sony STR-DE705 Receiver

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