LCD issues...

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zeno333
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Joined: Fri Dec 29, 2017 12:34 am

LCD issues...

Post by zeno333 » Wed Jan 10, 2018 12:43 pm

Twice the LCD screen has gone completely blank when in the off state...Once the image was there but just a dim ghosting of the image...When I turned it on when completely black it turns on normally, when I turned it on while very dim it goes through the REASET procedure that it would do from a hard reset on the back, but from just turning it on. the battery indicator also showed no bars but that recovered after a few hours. Anyone else have this issue?...Michael said it was a power usage issue and said to return it...I will be doing that.

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Vitasam
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Re: LCD issues...

Post by Vitasam » Wed Jan 10, 2018 12:53 pm

zeno333 wrote:
Wed Jan 10, 2018 12:43 pm
Twice the LCD screen has gone completely blank when in the off state...Once the image was there but just a dim ghosting of the image...When I turned it on when completely black it turns on normally, when I turned it on while very dim it goes through the REASET procedure that it would do from a hard reset on the back, but from just turning it on. the battery indicator also showed no bars but that recovered after a few hours. Anyone else have this issue?...Michael said it was a power usage issue and said to return it...I will be doing that.
What is a battery level?
Elektronika MK-61, Elektronika MK-52, HP15c LE, DM42 SN#16 FW 3.11

zeno333
Posts: 53
Joined: Fri Dec 29, 2017 12:34 am

Re: LCD issues...

Post by zeno333 » Wed Jan 10, 2018 1:00 pm

When it was a dim image, it first came back on after resetting itself with no battery bars showing...did not know the voltage then..it gradually recovered the battery bars and I then turned on the voltage indicator...It now reads 2.84 volts...The calc has been little used...Michael mentioned to me that one of the screen images is blank on purpose, but when mine goes blank it goes from showing an image to being blank on its own without being touched at all.

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Walter
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Re: LCD issues...

Post by Walter » Wed Jan 10, 2018 2:33 pm

Sounds like a bad battery - else like a bug noone else observed so far ... :?

Michael
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Re: LCD issues...

Post by Michael » Wed Jan 10, 2018 2:43 pm

No, to me this sounds like a hardware defect.
This unit will be replaced and I'll inspect it trying to find culprit component.
Some additional QC step should prevent this failure in the future.

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Walter
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Re: LCD issues...

Post by Walter » Wed Jan 10, 2018 3:33 pm

Ok, I stand corrected. Of course you know more than we do.
DM42 SN: 00041 --- Follower of Platon.

HP-35, HP-45, ..., HP-50, WP 34S, WP 31S, DM16L

zeno333
Posts: 53
Joined: Fri Dec 29, 2017 12:34 am

Re: LCD issues...

Post by zeno333 » Wed Jan 10, 2018 4:39 pm

I am far from a tech expert on this, but it seems it is LCD display related for sure....maybe something related to the LCD driver and or the lcd driver connection somewhere...Something to do with the LCD driver software wise of physical wise....

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Walter
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Re: LCD issues...

Post by Walter » Wed Jan 10, 2018 5:18 pm

zeno333 wrote:
Wed Jan 10, 2018 4:39 pm
... it seems it is LCD display related for sure...
Hmmh, "it seems" or "for sure", that's the question ... ;)
DM42 SN: 00041 --- Follower of Platon.

HP-35, HP-45, ..., HP-50, WP 34S, WP 31S, DM16L

grsbanks
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Re: LCD issues...

Post by grsbanks » Thu Jan 11, 2018 3:39 pm

Walter wrote:
Wed Jan 10, 2018 5:18 pm
Hmmh, "it seems" or "for sure", that's the question ... ;)
That's definitely the question, I think...
Not SwissMicros staff, just an enthusiast.

Geoff Quickfall
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Re: LCD issues...

Post by Geoff Quickfall » Fri Jan 12, 2018 12:33 am

I think the question is: what is a noone?

:D

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