Error F70 Troubleshooting Repair Guide

Difficulty

Difficult

Steps

7

Time Required

                          1 hour            

Sections

1

• Error F70 Troubleshooting
• 7 steps

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What you need

Step 1

              Error F70 Troubleshooting               

• So you’ve got a Technics SA-DX1050 or SA-DX950 that is displaying an F70 code. That sucks. Lets fix it.

So you’ve got a Technics SA-DX1050 or SA-DX950 that is displaying an F70 code. That sucks. Lets fix it.

1024

Step 2

• Remove four case screws on the left and right sides, then remove two screws at the top of the back side.

Remove four case screws on the left and right sides, then remove two screws at the top of the back side.

Step 3

• Lift up the device housing carefully. It helps to start at the rear bottom corners and pull out a little. Make sure that once the rear edges of the housing are free that you lift the front edge straight up to separate it from the front display assembly.

Lift up the device housing carefully. It helps to start at the rear bottom corners and pull out a little. Make sure that once the rear edges of the housing are free that you lift the front edge straight up to separate it from the front display assembly.

Step 4

• Visually inspect each of the following five fuses. If you have a multi-meter handy go ahead and test the resistance of each fuse to ensure that they have not been consumed.

Visually inspect each of the following five fuses. If you have a multi-meter handy go ahead and test the resistance of each fuse to ensure that they have not been consumed.

Step 5

• If there were no issues with the fuses or after replacing them the issue persists we are going to need to take a look at the Digital Board.

If there were no issues with the fuses or after replacing them the issue persists we are going to need to take a look at the Digital Board.

Step 6

• Remove six screws securing the Digital Board to the Rear Panel.
• Remove two flex cables and two other connectors from the Digital Board.
• Note: If you’re having issues removing the connector in the third picture you should be able to rotate the Digital Board after removing everything else then pull up on the white plastic latch.

Remove six screws securing the Digital Board to the Rear Panel.

Remove two flex cables and two other connectors from the Digital Board.

Note: If you’re having issues removing the connector in the third picture you should be able to rotate the Digital Board after removing everything else then pull up on the white plastic latch.

Step 7

• The marked solder joints tend to crack when exposed to repeated heating and cooling.
• Note: While you have your soldering iron out make sure to inspect pretty much every other solder joint on the board and re-flow it if necessary.

The marked solder joints tend to crack when exposed to repeated heating and cooling.

Note: While you have your soldering iron out make sure to inspect pretty much every other solder joint on the board and re-flow it if necessary.

To reassemble your device, follow these instructions in reverse order.

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Mernral Calrher - Apr 5, 2020

Reply

Thank you - barely perceptable break on one of the joints. Reflowed and looking good.

Ken Wockey - Aug 5, 2020

Reply

Thanks for your help. Your suggested method saved the day.

another unit, same model. Was working. Unit shut down, now no power. Making a sound like a dripping faucet.

Suggestions?

Keith Wesley - Dec 9, 2022

Reply

Hello everyone, unfortunately I tried this yesterday, i took mine completely apart and cleaned it real good. To my knowledge it’s not 1 lose soldier joint “tht I can c”. So idk what to do now? I can’t seem to find a electronic’s repair shop n my area. Ima leave my zip code 27574 if anyone could lead me n the right direction of a good electronic’s shop please let me know 🙏 carolinaoutlaw.69@gmail.com

Thank u, Keith

“I hope everyone has a GREAT Christmas” ! 12-9-2022

George H - Dec 10, 2022

Funny Keith. You and I are the same wavelength. I’m on other side of US in Seattle. Same time. Same issue. Same error. I’m not too psyched to throw down the $ to replace this thing. My next plan is to head to a thrift store and see if I can find something similar. Someone said this in the notes on other site which seems like not a bad idea.