NEC TG-16/TE/TurboDuo > TG/PCE Repair/Mod Discussion
Anyone have a lead on Video boars for the TurboExpress/PC engine GT?
WaldoX:
--- Quote from: MasterofBiscuits on October 13, 2021, 04:45:11 AM ---Components are given on the soldermask. You need resistors: 27k, 8.2k, 6.3k, 4.7k and 75ohm all 0805 size and an MMBT3904 transistor.
--- End quote ---
Thank you, I had noticed that later in the evening, but still was a little baffled by the notation, so thanks again!
WaldoX:
Hello again, I'm finally getting around to ordering these components, and just was hoping some amazing person around here could confirm my parts list and answer a couple of questions? I only started modding this year and much of this is still over my head. ANYWAY, this is the board I ordered: https://oshpark.com/shared_projects/SAfzq1dI/
Parts List
Resistors
* 27K
* 8.2K
* 6.3K
* 4.7K
* 1K
* 220
Transistors
* 2x MMBT3904
I've got the resistors covered, with one question. Will a 6.2K work in place of a 6.3K? I have one of those Resistor Bibles, and it has all the values except the 6.3K.
When it comes to the transistors, I know absolutely nothing about them. I searched MMBT3904 at DigiKey and found these: https://www.digikey.com/en/products/result?s=N4IgTCBcDaILJwEIBUDMBOADAFhAXQF8g
Will any of those work? How do I know if their the right package size? I don't see 0805 anywhere....
Your help is much appreciated!
P.S. My new soldering iron is supposed to have arrived yesterday, but didn't. I'm hoping to get that soon and finally try the new screen mod on the PC Engine GT. I have already built Console5's version of this board for that, but I have 3 of these boards and wanted to finish them up for future use. :-)
Keith Courage:
yes, 6.2k will work just fine. I've done the same. https://www.taydaelectronics.com/50-x-smd-chip-resistors-6-2k-ohm-1-8w-1-0805.html
WaldoX:
--- Quote from: Keith Courage on December 20, 2021, 05:37:13 PM ---yes, 6.2k will work just fine. I've done the same. https://www.taydaelectronics.com/50-x-smd-chip-resistors-6-2k-ohm-1-8w-1-0805.html
--- End quote ---
Thanks! Any thoughts on getting the right transistors?
Keith Courage:
I use 8050 Transistors. https://www.taydaelectronics.com/8050sl-transistor-npn-20v-0-7a-sot-23-3-8050sl.html
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