Question about Sony ICD UX81 digital voice recorder (2048 MB 95 Hours) Handheld Digital

1 Answer

When I turn it off, the Hold flashes. When I turn it on, nothing appears on the screen. I'm testing with new batteries. Thanks.

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  • paix_rl Mar 28, 2011

    The model is actually ICD PX720.

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Hi,
Check rear of unit, there is Hold switch, slid it to other side to turn Off Hold function, unit will start working normally.
Check below image for Hold switch location.
Thanks.

When I turn it off, the Hold flashes. When I turn - welcomejee_85.jpg

Posted on Mar 28, 2011

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Posted on Jan 02, 2017

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Nothing shows on scxreen after turn on, and new batteries


TI calculators have an annoying habit of dimming the screen when the batteries are changed so that it appears as if the calculator isn't turning on. Turn the calculator on (or at least press the ON key). Press and release the 2ND key. Press and hold the Up-arrow key for a few seconds and see whether the screen becomes legible.

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It turns on, but nothing else


take out the batteries; remove cartridge. press hold power button for 30 seconds. place batts back in and try to turn toy on

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I haven't turned on my HP 48GX calculator for more than 1 year and I cannot turn it on now even I change the new batteries. I hope you can help me, thanks.


It may just be a matter of adjusting the contrast of the screen.
Make sure batteries are good. Press and HOLD the ON key. Press + to increase contrast OR - to dim the screen.
At the end of the post you will find a link to a repair shop, but first I suggest you perform the following tests.

Warning
In the keyboard test (below), make sure the keys are pressed in the right order. If the calculator fails the keyboard test then it needs repairs. (Ignore the beginning of the post and skip to the last part For Repairs )

You can reset the calculator:

Turn the back of the calculator towards you. Extract the top right rubber pad (when you are looking at the back of calculator ) on the back of the calculator and use a paper clip to press the Reset button. If that does not restore the calculator to health, you should perform the diagnostic tests.

Make the calculator perform a
Self test.
  1. Turn calculator on
  2. Press and HOLD the key [ON]
  3. Press and release the key with "E" to its right (the one before last in first row)
  4. Release the [ON] key.
It tests the RAM and ROM. You will see various patterns on screen. Afterward you should see
IROM OK,
IRAM OK,
HP48GX OK
The self test will continue repeatedly until you perform a
System Halt
  1. Press and HOLD the [ON] key
  2. Press and release the "C" key
  3. Release the [ON] key.
The empty stack should appear.

If you do not see IROM OK and IRAM OK, the calculator requires service.

If the above procedure is successful, you may want
to test the keyboard.
  1. Turn calculator on
  2. Press and HOLD the [ON] key
  3. Press and release the "D" key.
  4. Release the [ON] key
  5. Press and release the "E" key. KBD 1 should appear on the top left corner of the screen.
  6. Starting at the upper left corner of the keyboard, and moving Left to right, press every key in sequence. If you follow the sequence and the keys are functioning properly you should hear a high pitch sound at each press.
  7. If everything is OK, when you press the last key (+) the screen displays KBD 1 OK.
To exit the keyboard test proceed as described above under System Halt.

If you follow the proper sequence and a hexadecimal number appears after pressing a key, the calculator requires service.-

For repairs
You can also try this site. They do repairs on most models, except the newer ones.

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2 Answers

IPhone won't charge - stuck in screen with battery and bolt


i have the same problem with my iphone 3gs 32gb have you found something that has worked? ive tried everything let me know if u find a way!! please!

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1 Answer

My phone is not powering on when i plug the charger in it has a green light in the top right corner but its not turning on when i press and hold the button on the top left 


try taking the battery out and while holding the power button in put the battery back in, if you still get nothing on the screen try doing the same , holding the power button down while you insert the charger.

If a tri coloured screen appears you will be able to reflash it, if it doesnt appear, then your battery is dead and it wont charge no matter how much you try, the MDA(or wizard) wont charge the battery, unless windows is running, i would recommend you buy a new battery, they are cheap enough

NOTE!!!
If the battery is very low but you can get the multicoloured bootscreen, i would not advise flashing it as you have no idea of how much charge is in the battery, if the battery fails during flashing you wont have a phone anymore

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1 Answer

Hp48gx is autistic


Hello,
The following procedure valid for the 48G should work for the HP48GX.
Make the calculator perform a
Self test.
  1. Turn calculator on
  2. Press and HOLD the key [ON]
  3. Press and release the key with "E" to its right (the one before last in first row)
  4. Relaese the [ON] key.
It tests the RAM and ROM. You will see various patterns on screen. Afterwards you should see
IROM OK,
IRAM OK,
HP48GX OK
The self test will continue repeatedly until you perform a
System Halt
  1. Press and HOLD the [ON] key
  2. Press and release the "C" key
  3. Release the [ON] key.
The empty stack should appear.

If you do not see IROM OK and IRAM OK, the calculator requires service.

If the above procedure is successful, you may want
to test the keyboard.
  1. Turn calculator on
  2. Press and HOLD the [ON] key
  3. Press and release the "D" key.
  4. Release the [ON] key
  5. Press and release the "E" key. KBD 1 should appear on the top left corner of the screen.
  6. Starting at the upper left corner of the keyboard, and moving Left to right, press every key in sequence. If you follow the sequence and the keys are functioning properly you should hear a hight pitch sound at each press.
  7. If everything is OK, when you press the last key (+) the screen displays KBD 1 OK.
To exit the keyboard test proceed as described above under System Halt.

If you follow the proper sequence and a hexadecimal number appears after pressing a key, the calculator requires service.
Hope it helps.

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