Question about Sherwood A-965 Amplifier

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Sherwood amplifier rv-5106r

I wonder if you can help me, the amplifier powers up and switch off when out of stand by, is there a easy solution that you can recommend, there was no obvious reason for it to stop working , is it a fuse or a bad relay,I would appreciate your help Thanks

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Re: Sherwood amplifier rv-5106r

Check your speaker wires are not shorting out, make sure they are not touching each other!

Posted on Feb 13, 2008

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Re: Sherwood amplifier rv-5106r

If your skilled enough,concentrate only on the power supply circuit and try to check some chips,if not see a qualified tech.

Posted on Feb 18, 2007

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Smoke comes out from the switch and wont turn on ... there 2 amps make of ca9 and ca6 wondering if you guys can help

This is a very easy cheap fix, but since this thread is pretty old first make contact to help you out with this issue, common on CA series power amplifiers of Crest Audio.

Aug 12, 2011 | Crest Audio CA 9 2Channel Amplifier

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Amplifier shuts down soon after turned on with a "click" sound. This happens intermittently but less common in cool weather. Nothing is placed on it and it is in a relatively dust-free...

Hi, This is a (thermo switch) heat is being generated through the unit. This switch turns it off when the amp gets to hot. My suggestion is you can place a fan near the unit to cool it down. Good luck.

Jul 22, 2011 | Sherwood Amplifiers & Preamps

1 Answer

I have a Sherwood Nottingham R-925RDS receiver. No matter what input I select it does not connect to the amplifier section. Everything else appears to function ok. Unit switches on & off, correct...

Let's work with FM as that is ONboard and can't be connected wrong. Does THAT work?

Turn the volume control to something medium.

The errant switch, control or condition may change and you will suddenly release the amp's full power and possibly destroying your speakers. If a signal isn't audible at 1/2 volume it's probably not there.

Carefully examine the front panel for clues like a misplaced Mute or Tape Monitor control or Multichannel Analog Input selected.

There is a good chance that a common control may have developed a high-resistance or 'dead' spot through idleness and is causing your symptom. Turn the POWER OFF and operate every control throughout its range a number of times, especially rarely-used ones like Tape Monitors and the Mute control.

Turn the volume to something reasonable and see if that helped.

May 06, 2011 | Sherwood Amplifiers & Preamps

1 Answer

My sherwood r525 only plays preamp and i was wondering how to fix it

I have the manual for the Sherwood R-925 and I think they might be simlar in design. It's says for this problem check transistors Q215 and Q216 on the AMP302 board.
Of course you will have to determine if this can help solve your problem. I think the model you have is just the dolby surround model and the 925 the dolby digital, but they look nearly the same I think!

Aug 14, 2010 | Sherwood Amplifiers & Preamps

1 Answer

Not able to locate B2510 and D1510

It would have been helpful to know on which kind of component you found these numbers but since you didn't, I'll just guess:
Power transistors? (You could at least mention how many leads next time.)
If so, add the characters '2S' in front of each (such as: 2SB2510) and you might have better luck.

May 19, 2010 | Sherwood A-965 Amplifier

1 Answer

When in stand by mode if i press a function amp switchs off

I've encountered such a problem in the past, these kind of mischiefs are played by digital devices. Actually the programable I.C. of your amp has encountered a problem in the internally built gates so you would have to replace it and get its logic coding from the website of the company your amp belongs to.

Aug 26, 2009 | Sherwood Amplifiers & Preamps

1 Answer

Lexicon RV-8 wakupe failure

Did you try this....

In the event of a power outage, the RV-8 will display a BROWN
OUT!! PRESS STANDBY message. To turn the unit on, use the
STANDBY button. For more information, see “POWER
MANAGEMENT” on page 3-3....


"Setup" >> "Power Management"

Opens the POWER MANAGEMENT menu, which is used to automatically
put the RV-8 into standby mode during brownouts.
When set to ON, the RV-8 detects low voltage levels or a momentary
loss of power and puts the device in standby mode. In the event of a
power brown out, the RV-8 will display a BROWN OUT!! PRESS
STANDBY message. To turn the unit back on, use the front panel
STANDYBY button.

When set to OFF, the RV-8 will attempt to function during a
momentary power loss, however software settings may become
corrupt and need to be reset.
When the RV-8 is in standby mode, pressing the button turns the
unit on and activates all zones that were active in the previous
operating session.

The RV-8 does not power on.
1. Make sure the rear-panel power switch is set to the | (“on”)
2. Attempt to power on the RV-8 with the front-panel Standby
button and remote control On button.
3. Examine the power cord to ensure a good connection between
the rear-panel AC input connector and the wall outlet.
4. Check the electrical circuit and breaker.

Apr 05, 2009 | Lexicon RV-8 V2.0 Amplifier

1 Answer

Sherwood AX-7030R amp - doesn't switch on.

Something doesn't sound right. The standby circuit is usually very simple. The "regulator" is just a transistor. Can you request and post the parts that he/she can't find. I should be able to get you a source or substitutes.


Dec 16, 2008 | Sherwood A-965 Amplifier

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