Firefly: Backlight has too much bright at minumum level - Page 2

rfog · 05-10-2013, 10:12 AM

Quote:

Originally Posted by Booxtor

This is weird, because on all Fireflies, where I tried new software, the brightnes of Moon Light in lowest position hardly recognisable (even too dark). Now I am reading in complete darkness at comfortable 40-50% ML level. I guess something is wrong with your Tagus ...

Quote:

Originally Posted by Kirith

Our Technical Support advised to resolder the resistor on the one who has more resistance.

Наша техподдержка посоветовала перепаять резистор на тот у кого большее сопротивление.

Quote:

Originally Posted by ben1111ben

It can't be modified by software. In fact, many people in China also encountered the same problem. The Onyx worked for more than one month and found that the only way to solve it is to adjust hardware. So you need to sent the firefly back to Onyx.

This weekend I'm going to open one of my two Tagus and search for that resistor. Once I've removed the original firmware I cannot turn them back because there is no way to restore original one (Casa del Libro haven't put an update yet).

yayo · 05-10-2013, 11:52 AM

What exactly are you planning to do with that resistor?

EDIT
and, btw, this is an advice given in the russian forum:

Quote:

polkan wrote (a):
would be good to get the right "chendzhlog" to "restyling" can help owners of old Auror for soldering their already (!) acquired glands. I do not Verrier that there is something fundamentally changed, probably a couple of resistors and capacitors may well have changed where necessary to stick a jumper or eliminate

Quote:

The answer is to reduce the minimum level of illumination necessary to replace R240 is 49.9 ohms.

EDIT2
my guess is the guy ment 0.49 ohms

rfog · 05-10-2013, 02:10 PM

I think 0.49 Ohms is very little resistance... It is practically a short...

However I will see device internals and see what current value of R240...

rfog · 05-11-2013, 08:14 AM

I'm not able to find R240

Kirith · 05-11-2013, 08:42 AM

Look at the board directly under the battery next to the biggest capacitor.
There were 2 options wiring board. In the first - from The sides of the screen, the second - on the back

Смотрите на плате прямо под аккумулятором, рядом с самым большим конденсатором. Было 2 варианта разводки платы. В первом - со строны экрана, во втором - с обратной

05-11-2013, 08:14 AM	#19
rfog Guru Posts: 696 Karma: 2383012 Join Date: Aug 2007 Location: Schiedam (The Netherlands) Device: Lots of eInk devices and iOS stuff	I'm not able to find R240 Attached Thumbnails

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05-10-2013, 02:10 PM	#18
rfog Guru Posts: 696 Karma: 2383012 Join Date: Aug 2007 Location: Schiedam (The Netherlands) Device: Lots of eInk devices and iOS stuff	I think 0.49 Ohms is very little resistance... It is practically a short... However I will see device internals and see what current value of R240...

05-11-2013, 08:42 AM	#20
Kirith schoolteacher Posts: 137 Karma: 16342 Join Date: May 2012 Location: Russia Device: Onyx M92 +i62HD(m)+M92(m)x20+M90x13	Look at the board directly under the battery next to the biggest capacitor. There were 2 options wiring board. In the first - from The sides of the screen, the second - on the back Смотрите на плате прямо под аккумулятором, рядом с самым большим конденсатором. Было 2 варианта разводки платы. В первом - со строны экрана, во втором - с обратной

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