Famicom World

Family Computer => Technical & Repair Assistance => Topic started by: tobasoft on January 24, 2020, 01:00:37 pm

Title: Power input replacement.
Post by: tobasoft on January 24, 2020, 01:00:37 pm
Hey all, I'm getting my twin RGB/Component out modded next week. Now I've been wanting to replace the AV/ Power inputs for a while because the AV ports are discolored and rusty and the power input plastic is cracked, so I have two questions,

1. will the mod replace the AV slots anyway?

2. where can I get a replacement power input?
Title: Re: Power input replacement.
Post by: gorgyrip on January 24, 2020, 04:39:23 pm
1. I don't think so. Most mods use a mini din 8 connector or a snes multi out connector. So the Av ports will remain
2. The power connector is 5.5 x 2.5mm. You can search for it on ali for 5.5*2.5mm pcb
Title: Re: Power input replacement.
Post by: number47 on February 21, 2020, 06:48:22 am
There are some folks who have kicked out the whole 5V regulator part and replaced the power connector with standard USB B (like in printers and such) port. You could run the system with standard 5V 1A smartphone wallcharger with a printer-cable attached to it. Also you eliminate the possibility to burn down your console with the wrong polarity AC/DC adapter (center pin neg or pos) because it takes a lot of brute-force to stick the USB cable inside the wrong way :)
Title: Re: Power input replacement.
Post by: FAMICOM_87 on February 21, 2020, 09:13:00 am
Quote from: number47 on February 21, 2020, 06:48:22 amAlso you eliminate the possibility to burn down your console with the wrong polarity AC/DC adapter (center pin neg or pos)

in my practice there are no famicoms/famiclones casualties from wrong polarity  :fire:  :crazy:
Title: Re: Power input replacement.
Post by: number47 on February 21, 2020, 01:17:21 pm
The only thing that blows is 7805, but smoke and popping sound is scary if you don't know that ;)
Title: Re: Power input replacement.
Post by: FAMICOM_87 on February 21, 2020, 02:10:32 pm
I have a "mod" for famiclones to run them on AC current transformer about 9-12V and 500mA or more if you do not have DC center negative adapter with the similar specifications :D just cut the positive trace and add diode, and a big capacitor on the input (i putt 4700 μF 16V, and on the output for example 100 μF 6V or more like me)  , you can make full bridge rectifier by 4 diodes if you want, but just one is enough for those crappy famiclones  ;D
BTW this is my improvised heat-sink made from tin metal :D