20 Most Recent Onkyo TARW255 Single Dual Cassette Deck Questions & Answers

Sounds like the tape tension sensor is stuck. The sensor is always telling the mechanism that the tape has reached the end.

Onkyo TARW255... | Answered on Oct 28, 2013

Either tape is tight, run it ff the rev all the way back, or transport is failing , motor , belt , pulley etc,

check tape or try another one in deck b, how is deck a


Onkyo TARW255... | Answered on Sep 23, 2009

It is problem in Take-up Reel section and its not sending signal to processor. How old is this unit?

Onkyo TARW255... | Answered on Jul 27, 2008

If battery replacement does not solve the problem, the next step is to to replace the remote control. However, the fault could be with the receiver.

Onkyo Audio... | Answered on Jan 11, 2021

Request the service manual directly from Onkyo.

Onkyo Audio... | Answered on Nov 26, 2020

Probable power supply failure

Onkyo Audio... | Answered on Nov 11, 2020

You probably blew the output stage and it is operating in protect mode until you repair it.

Onkyo Audio... | Answered on Nov 11, 2020

Hello, I am sorry for your issue. The update may have stopped due to a power loss or another reason. The receiver needs to be sent to a service center. I have included a link below to search for a center. Thank you, Onkyo USA.


Onkyo Audio... | Answered on Oct 29, 2020

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Onkyo Audio... | Answered on Sep 25, 2020

The Auto Stand-by turns off the receiver if there is no audio or video signal for 20 minutes when set to On. Thus it shouldn't be blocking the receiver from coming on if it is set to Off. When the USB Power Out on Standby (power to a USB device when the receiver is off) or Network Standby (enable network power on requests from the Onkyo app) are enabled, then you get the hybrid standby mode if the Power Management Auto Stand-by is active (On). There is also an HDMI Standby mode for throughput of an HDMI signal.

What devices do you have connected to the receiver? Try turning on a video or audio source before you turn on the receiver. The other reasons for the unit not to turn on is the protection circuit being engaged. This can happen from overheating or a loose speaker wire touching another wire or the back of the receiver. Usually if the unit has the protection circuit engaged, the display will indicate Amp Diag Mode. After the diagnostic test, the display will indicate if there is a problem (SP wire). If there is nothing on the display after the diagnostic, the receiver should work properly when it receives an audio signal to send to the speakers. If the unit has been overheating, make sure that there is good ventilation around the receiver. Also clean any dust off the unit.

Crutchfield has the manual for the TX-RZ730 on the product page: https://www.crutchfield.com/S-lvaBRQ0O5ib/p_580RZ730/Onkyo-TX-RZ730.html . The current link to the manual is https://pdf.crutchfieldonline.com/ImageBank/v20200223150400/Manuals/580/580RZ730.PDF .

I hope this helps. If you heard an abnormal sound or smelled smoke, then the unit has internal damage. Similarly, if the problem continues, I'd suspect a wiring fault between the internal power supply and the main board of the receiver. The unit needs service or replacement.

Cindy Wells

Onkyo Audio... | Answered on Sep 24, 2020

Does the display show you are in protect mode , or is a light indicating that? The unit automatically switches to standby when the
"Hardware" - "Power Management" - "Auto Standby"
setting in the Setup menu functions are set. The protective circuit function may have been activated.
If this has occurred, "AMP Diag Mode" appears on the
display when the unit is turned on again, and the unit
enters diagnostic mode. If the results of the diagnosis is
that there is no problem, the "AMP Diag Mode" display
disappears and you can use the unit normally again. If
"CHECK SP WIRE" appears on the display, the speaker
cables may be short-circuited. Make sure bare speaker
wires are not touching each other or the back panel of
the unit, then turn the unit on again. If "NG" is displayed,
immediately unplug the power cord from the wall outlet
and contact your dealer.
• The protective circuit function may have been activated
because the temperature of the unit rose abnormally.
If this happens, then the power will continue to turn off
after you have turned the unit on again. Make sure the
unit has plenty of space for ventilation around it, wait for
the unit to cool down sufficiently, and then try turning it
on again. This is out of your users manual.

General suggestions are to remove all speakers and speaker wiring with unit off. Turn on and see if problem has stopped. If not, let unit cool down if warm and try again later. If problem is still there it needs repair shop work. I fht problem went away, shut off power and connect one speaker at a time and testing. Keep adding speakers one at a time with power off and see if a bad speaker or wire set can be located

Onkyo Audio... | Answered on Aug 23, 2020

I don't know the answer but I suggest obtaining and reading the user manuals before your purchase will give you that information.
It will then be important to ask the supplier the answer and then the responsibility will be theirs.

If the amplifier provides either a 3:1 or 5:1 output there will be provision for a subwoofer - but what type of subwoofer (active or passive) will be hidden in the specs and if you already have a subwoofer, in the specs of that.

When buying a new amp and preamp the last thing you want is mismatch or overload conditions that will either produce a less than good sound or perhaps stressing the amp.

As a matter of diverse interest, in the old days before subwoofers had been invented the hifi enthusiasts seeking the perfect sound developed the three rack amplifier for domestic use. This type of amp had been used in cinemas for a long time and basically consisted of three amplifiers each built to handle a different frequency spectrum - one amp would drive the tweeters, another the midrange and the third would drive the bass units or woofers.

Another thing hifi buffs did was to introduce a ghost speaker driven by a mono amp that derived an input across the left and right channels.
My opinion is the best sound still comes from a quality 10 or 20 watt tube amp into quality low power handling speakers with cabinets as big as a sideboard. 300Mw is the average power needed for a good listening experience in the average lounge or bedroom.

Onkyo Audio... | Answered on Jul 08, 2020

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