Search found 5 matches

by ics
Fri Apr 22, 2016 6:56 pm
Forum: Electronic Mods
Topic: backlight always on
Replies: 41
Views: 33779

Re: backlight always on

I have checked the transistor with a multi-meter and it was damaged. Probably DoA or by heat.
After replacement, the problem is solved. The BL switches off completely.

Thanks for your support!!
by ics
Thu Apr 21, 2016 10:12 pm
Forum: Electronic Mods
Topic: backlight always on
Replies: 41
Views: 33779

Re: backlight always on

It says BS170 on the transistor... it should be a BS170 (?) I'll try to find locally a 2N7000 transistor. I see on the wiki that it's the same with BS170 except it has the outer pins swapped. How many W for the 100k resistor? ------ The fact that it dims rather than switching completely off, isn't t...
by ics
Thu Apr 21, 2016 9:31 pm
Forum: Electronic Mods
Topic: backlight always on
Replies: 41
Views: 33779

Re: backlight always on

er9x r820
v1.96-Mike

Sound Mode: Beeper (and I tried all modes and for some the display dims and won't go full brightness)
by ics
Thu Apr 21, 2016 8:05 pm
Forum: Electronic Mods
Topic: backlight always on
Replies: 41
Views: 33779

Re: backlight always on

I have a spare BS170 transistor, but identical and I'm thinking of replacing it..
by ics
Wed Apr 20, 2016 4:10 pm
Forum: Electronic Mods
Topic: backlight always on
Replies: 41
Views: 33779

Re: backlight always on

Here it is, attached.

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