Question about Technics SA-DX750 Receiver

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Technics sadx750 and says f70 and turn power off

A failure is f 70 and turn power off

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  • xXGreenSXx Mar 13, 2008

    I have the same problem. The first time it happened is when i split my RCA's to two sources. So I removed the splitter and hooked the RCA's up directly and the problem stopped. It has been a week since that happened and now its back. I checked all my RCA's for shorts or misconects and they were all Fine. I even tried removing all my RCA's and the problem still exsists. Please Help.

  • poopol Jul 17, 2008

    it started of with overload then IC601 and IC651 was replaced worked fine for a few weeks then started with F70 turn off power first occasionally now shortly after switch on

  • Anonymous Mar 05, 2009

    TENGO UN SINTO AMPLIFI. CUANDO LO ENCIENDO DICE F70 Y DESPUES TURN POWER OFF Y LOS FUSIBLES ESTAN BIEN, LAS SALIDAS Y LA FUENTE TAMBIEN Y NO SE POR DONDE TRABAJARLA. SI ALGUIEN ME PUEDE DAR ALGUN CONSEJO, LES AGRADEZCO. MI EMAIL JOLQUIM034@HOTMAIL.COM ME PUEDEN AVISAR LO MAS PRONTO. GRACIAS.

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Technics sadx750 and says f70 and turn power off

Posted on May 27, 2008

  • Gcia May 27, 2008

    a failure is f 70 and turn power off

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Hi
1>try this .
the DSP board cable check it if it is loose or defected .
2> check the supply voltage on the DSP board .
Good luck
Hope this helps

Posted on May 27, 2016

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1 Answer

F70 was displayed on Whirlpool duet dryer what does F 70 mean


Isnt F70, really is F07... this means Motor Control Unit Error
Description: The Central Control Unit has detected a short in the motor control unit. If a failure occurs during high-speed spin, the door will be unlocked after 3 minutes.

Check or Repais:
- Check wire harness connections between the Drive Motor and the Motor Control Unit (MCU), and between the MCU and the Central Control Unit (CCU)
- Check the MCU
- Check the Drive Motor
- Check the Wire Harness

Hope helps.

Aug 22, 2011 | Whirlpool Duet GHW9150P Front Load Washer

1 Answer

I have a Kenmore model 11049962603 that displayed an f-71 error code. I ordered a new cpu computer from sears and installed it. the machine seemed to work for one or two loads. now it displays an f-70...


I provided a complete list of error codes for this type of washer in the image below. The error codes vary by the exact model of HE3t washer that you have. Since you have an HE3t that is displaying the F70 and F71 codes, the list below should apply to your model. These are not listed in the owner's manual because they are intended for technicians. Use extreme caution if you follow any of the troubleshooting described in this information sheet. Unplug the washer and shut off the water supply before accessing internal components.

The F70 and F71 codes indicate that you have a communication error between the CCU (Central Control Unit or main machine control board) and the user interface touch pad assembly. Here are some troubleshooting tips:

Make sure that you have the washer plugged into a properly grounded 3 prong 120 volt AC electrical outlet.

Unplug the washer for 30 seconds to allow the control boards to power down and reset. Plug the washer back in but do not touch the power button (or any other buttons) for 1 full minute. This may reset the control board. Pressing the power button too quickly after reapplying electrical power to the washer can cause the F70 or F71 code since the CCU does not have time to recognize the user interface control.

If the above tip does not help then the most suspect component failure is the MCU (motor control unit -- motor control board at the bottom of the washer beside the drive motor). You can check for this failure by unplugging the washer and then pulling the MI3 connection on the CCU. The wiring diagram below has the MI3 connection highlighted in red. The connection has blue wires. The third image below shows this connection on the control board. The connections are labeled on the control board. Press the tab at the bottom of this plug down and then pull it out. Power up the machine with this connection unplugged and don't touch any buttons for 1 minute. If you then press the power button to turn on the washer and don't get the F70 or F71 code then the MCU at the bottom of the washer will likely need to be replaced to fix this problem. A technician would normally be needed to verify this failure and replace the MCU. The MCU is expensive ($423).

This troubleshooting information is based on a common HE3t model that displays the F70 and F71 codes. If you need more help, submit additional details and the full model number of your HE3t washer.

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Mar 27, 2011 | Kenmore Washing Machines

1 Answer

F 70 APPEARS ON THE DISPLAY


Page 24:

"Turn the unit off, disconnect the AC power suplly cord, then reconnect and turn the unit on. Consult you dealer if "F 70" remains in the display.

http://service.us.panasonic.com/OPERMANPDF/SADX750.PDF'

Support: 1-800-211-PANA (7262)
http://www2.panasonic.com/consumer-electronics/support/Contact-Us.4

Jan 14, 2011 | Technics SA-DX750 Receiver

1 Answer

F70 on my reciever


Most likley it is in need of repair. I suspect the output IC. Check for bad solder connections on the IC and voltage regulators.
Remove the speakers and see if it still happens (it probably will).

Feb 11, 2009 | Technics SA-DX940

2 Answers

F70


The system has detected a fault in the output section. How much are you asking of the system? Greater than 50%? That will push most systems to their limit in a short period of time...accordianman

Jan 14, 2008 | Technics SA-DX850 Receiver

1 Answer

Could anybody tell me what F70 means ?


You must have air flow through this unit!...accordianman

Dec 04, 2007 | Technics SA-DX850 Receiver

1 Answer

What is F70???


F70 means Blown Internal Fuse change the internal fuse and that should solve the problem if not you may have to change the output

Oct 30, 2007 | Technics SA-DX750 Receiver

3 Answers

Technics SA-DX950


when turn on receiver , after few seconds got message
F70. when wants to do any operation with receiver got message SWITCH POWER OFF

Jun 25, 2007 | Technics SA-DX950 Receiver

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