Author Topic: Turbo Express - Replacement for SOT-23 controlling RGB and backlight  (Read 403 times)

highfroman

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so upon taking apart my Turbo Express i accidentally broke one of the SOT-23 Transistors that controlled the green channel (D206)  ](*,)

I ended up taking the one from D208 and it fixed the video color being off but now i lost control of the backlight brightness so I want to find a replacement for this part and i cant find anything on google that names this part.

I'm sure its something basic but I'm more of a follow the instructions kind of guy and I'm lost without them.

anyone know what this part is, and if there are any of these used in another console i could take it from (I have a bunch of broken systems including nes snes n64 gameboy's)

if i cant figure it out i may just composite mod it and add a TFT LCD so the brightness control wont mater.

what do you guys think? sorry in advance if this is in the wrong place!

« Last Edit: April 05, 2017, 07:27:55 AM by highfroman »

NichlasEk

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Re: Turbo Express - Replacement for SOT-23 controlling RGB and backlight
« Reply #1 on: April 05, 2017, 06:09:57 PM »
My best guess is somthing like this:
http://m.ebay.it/itm/162013929973?_mwBanner=1
Fast switching diode.
And also i paniced over losing contrast controll after a recap. Turns out the batteries draind very fast, and with new batteries it worked like a charm.

Keith Courage

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Re: Turbo Express - Replacement for SOT-23 controlling RGB and backlight
« Reply #2 on: April 06, 2017, 12:36:49 AM »
You should change all of the caps not just the audio ones. The caps in the upper left corner (4.7uf and 100UF)especially because those deal with back light power/brightness. Could just be that they went bad while you had it apart.

highfroman

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Re: Turbo Express - Replacement for SOT-23 controlling RGB and backlight
« Reply #3 on: April 06, 2017, 09:05:11 AM »
You should change all of the caps not just the audio ones. The caps in the upper left corner (4.7uf and 100UF)especially because those deal with back light power/brightness. Could just be that they went bad while you had it apart.

this was just a photo i found on google that had a clear picture of the part i needed replaced, the TGE im working on is receiving a full cap kit i purchased from console5. I've seen enough PCB damaged by bad caps that i know the negatives of not replacing them preemptively

gex

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Re: Turbo Express - Replacement for SOT-23 controlling RGB and backlight
« Reply #4 on: April 07, 2017, 08:41:16 AM »
You should change all of the caps not just the audio ones. The caps in the upper left corner (4.7uf and 100UF)especially because those deal with back light power/brightness. Could just be that they went bad while you had it apart.

Hey I pmd you

Fidde_se

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Re: Turbo Express - Replacement for SOT-23 controlling RGB and backlight
« Reply #5 on: April 14, 2017, 03:57:30 AM »
This is the one, DAN202KT146, the one first in the list
http://eu.mouser.com/Search/Refine.aspx?Keyword=dan202

http://www.mouser.com/ds/2/348/dan202k-1017245.pdf

The ones on ebay or aliexpress are either in wrong package or way to expensive, better to get 10-50 in the right package then 1 for the same price.

SOT-23/SC-59
GW/GB/GBP/GBL/GBC/GBA/GBASP/GBASP2/GBM/DS/DSL/DSiXL/3DS/PM/VB/FC/NES/SNES/N64/GC/Wii/PS/PSONE/PS2/PS2S/
SMS/SMS2/GG/NOM/MD/MD2/MD3/MD1CD/SS/DC/XB/XB360/NGP/NGPC/NGPC2/WS/WSC/CSW/PCEGT/PCE/PCECG1/PCECG2/
PCECD/TG16TE/NGAGE/GIZ/GP32/GP2XF1/GP2XF2/GP2XWIZ/GP2XCAN/DA320/ST520/ST1040/LNX/LNX2/JAG/PORT/CD32/A500/
C64/CDi/VMU/POCKSTN/PSP/PSPCFW/FDS/VSM

highfroman

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This is the one, DAN202KT146, the one first in the list
http://eu.mouser.com/Search/Refine.aspx?Keyword=dan202

http://www.mouser.com/ds/2/348/dan202k-1017245.pdf

The ones on ebay or aliexpress are either in wrong package or way to expensive, better to get 10-50 in the right package then 1 for the same price.

SOT-23/SC-59


Thank you so MUCH! Do you know if this can be found inside anything else?

I'll probably end up ordering it anyways 10$ is not a bad price to get this thing back up to 100%