Question about Yamaha AX-496 2-Channel Amplifier

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At times the amp will not turn on from the standby mode. It is necessary to push the standby buttone several times. I thought the problem was in the microswitch, so I replaced it for a new one, but it didn't help.

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  • miroslav_kol Jun 29, 2009

    When I now removed the CD and Radio input it switches on fine. But this happens randomly, so it is hard to say.

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With all inputs disconnected, does it behave the same way?

Posted on Jun 29, 2009

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Cant adjust the time o the clock


  1. Select Clock Adjustment item during Menu mode (In Standby mode see below for standby mode explained). Select the "Clock Adjust" display.
  2. Enter Clock adjustment mode. Press and hold the control knob for at least one second. The clock will blink.
  3. Adjusting the clock. Push the control knob towards the left or right to select hours or minutes. To adjust each item turn the control knob or push it towards up or down.
  4. Exit clock adjustment mode. Press the (FNC) button.

  • Turn on the power.
  • When the power is ON, select a source.
  • SRC Select mode 1: PRess the (SRC) button and then turn the Control nob or push it toward left or right.
  • To determine the selected source, press the Control knob.
  • SRC Select mode 2: Pressing this button each time switches between sources.
  • Turner ("Turner"), USB or iPOD ("USB" or "iPod"), CD ("Compact Disc"), Auxiliary input ("AUX"), and Standby ("STANDBY")
  • Press at least 1 second to turn off the power

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Samsung LE32R74BDX 32 in......


just spoke to Samsung support and it turns out that the freeview tuner had froze and needed resetting. To do this put TV on standby and then push in series these buttons on the remote: 'info, menu, mute, power' the TV will then turn itself on and display a menu. Press the 'down arrow' untill you've highlighted option 12 - 'reset' and then press the 'right arrow' to enter the option. TV will turn off and when you turn back on it will start in 'plug & play' mode as if new. Set the time and country options and then it will perform a complete scan. I've just retuned mine and all back to normal. Hoorah!!!! :-)

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Compaq F572US won't start (led turns on, but nothing happens)


I have been having the same problem. At first I thought that the motherboard was fried and the laptop was a paper weight, but I kept it plugged in and kept pressing the power button several times over the days. It would always seem to start (screen remained off/black) and then it would just go off again in seconds. But persevarence has paid off, finally almost after a week it started up like normal and started working again as normal. I then had the same episode repeat a few weeks later, the computer was useless for a few days and again started up as I kept pressing the power button several times a day.

I believe the problem is with the standby mode. Each time the problem happened, it seems like the computer was going into standby mode and the power button was pressed again before it could competely go into standby or the button was pressed again while it was coming out of standby.

To sum it up, nothing is wrong with the cimputer components, there is some problem with the standby routine. Keep pressing the power button and hopefully you can get lucky in getting the computer to start again. Long term, I am thinking about checking whether there was a new flash update that came out that could fix this problem. I purchased the laptop compaq F72US in 2008 and never updated anything. Also worth noting that I called HP and they didn't stand behind their product.

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1 Answer

Sony Trinitron Wega Standby blinks & the TV won't turn on


Those blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
http://electro-medical.blogspot.com/
http://homenol.blogspot.com/
http://electronicshelponline.blogspot.com/
If blinks continue without any pause, the main board is faulty.
Search the site by type in the "brand name" to your device, in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

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My classroom TV seems to be stuck in standby mode. Blue light is on but TV won't turn on either by push button or remote.

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I have a Pioneer XC-F10 Stereo CD Tuner. I keep trying to turn it on and it keeps turning off immediately...?


I Have managed to solve my instant turning off fault. As its been mentioned before, this is a demo mode fault, heres what I did...

Leave the Unit in standby, and press and hold the "system menu" button you should see the words "demo mode" flash up on the display briefly, at this point press the "set" button to enter demo mode selection finally press the "+" or "-" button to turn the demo mode off.

You have to be quick with the remote buttons when getting into the demo mode, might take a few trys.

I'm not sure if this will fix everyones fault, but certainly helped with mine. Good Luck.

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2 Answers

Sony Triniton Wega Model KV 32HS510. After pushing the power button,the tv starts to power up, then the standby light blinks 7 times then pauses before blinking 7 times again. It continues to do this,...


This is usually an indication of a failure in the scan amplifier sections. When the scan amplifiers or high voltage sections fail, the main power supply will usually also require servicing.

It is very common that the fly-back and high voltage multiplier and also the horizontal output stage fails in these sets. Along with it, the power supply will usually require to be serviced. On rare occasions, the vertical deflection amp fails.

Jerry G.

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I HAVE SAME PROBLEM. AFTER I REPLACED MY DEAD BATTERY MY AIWA CDC-X304 IS STUCK IN THE DEMO MODE. ONLY CD WORKS BUT ALL BUTTONS ON FACING DO NOT RESPOND. ANY SUGGESTIONS HOW TO RESET.

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1 Answer

Not powering on


1. The power cord is not completely insered. 2. the impedance selector switch on the rear panel is not fully set to the upper or lower end - (set it when the unit is in the standby mode) other then that, you will have to call for a service.

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