NES-001 cap replacement guide for the av power module

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game-tech.us
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Re: NES-001 cap replacement guide for the av power module

Post by game-tech.us » Wed Oct 19, 2016 5:45 am

groove wrote:For those who completely remove the power module for recapping: when reattaching, are there any tips for getting good, evenly melted solder joints around those four big grounding tabs?
Use a high wattage iron with a big tip! :)

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Re: NES-001 cap replacement guide for the av power module

Post by Memblers » Thu Oct 20, 2016 1:38 am

If you have multiple soldering irons, you can try using them at the same time. Another possibility would be to use a heat gun to pre-heat the ground plane, however you'd have to be very careful with that as it will heat up everything, including your new caps.

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Re: NES-001 cap replacement guide for the av power module

Post by ApolloBoy » Sun Oct 23, 2016 9:49 am

3gengames wrote: Weird, because on the right side, they literally change between every picture.
Just noticed this guy was too dense to realize that each picture is of a different board, hence why they're different. LOL

rossoe2
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Re: NES-001 cap replacement guide for the av power module

Post by rossoe2 » Wed Apr 15, 2020 7:46 pm

Hi

Can someone please help me identify which version of PAL board I have?

I'm trying to identify what capacitors I need to get to recap the board and I can't match up the power module with any listed at the top of this thread, or against the schematics on this link:
https://console5.com/wiki/Nintendo_NES-001
IMG_20200413_154849_resized_20200416_033456130.jpg
IMG_20200413_180727_resized_20200416_033530713.jpg
IMG_20200413_180709_resized_20200416_033545126.jpg

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Re: NES-001 cap replacement guide for the av power module

Post by lidnariq » Wed Apr 15, 2020 8:32 pm

The barely-visible green sticker on the side should tell you what model you have. Mitsumi is visibly pressed into the metal case, but...

However, if the one you have isn't a clear match for any of the ones that console5 has documented, it probably isn't a match for any of the ones that console5 has documented, and you'll have to disassemble it to find out what capacitors are inside in order to replace them.

Ice Man
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Re: NES-001 cap replacement guide for the av power module

Post by Ice Man » Thu Apr 16, 2020 12:27 am

If you're going for the electrolytic only, the value is written on them as well as on the NES PCB next to them.

From left to right as seen on the picture:
1uF 50V
2.2uF 50V
100uF 50V

rossoe2
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Re: NES-001 cap replacement guide for the av power module

Post by rossoe2 » Thu Apr 16, 2020 2:25 am

Thanks

I have this label on the side of power module if that is what you mean:
IMG_20200416_101705_resized_20200416_101750828.jpg
The caps I really want to replace are in the power module itself, but will hopefully replace all of them.

Aiming to use the non destructive method of getting in via the hole left by removing the largest cap as per this video - https://www.youtube.com/watch?v=rdbRlH-Iubk

Hoping I don't have any tucked away in the corner of power module, far from the large hole left by big cap!

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Re: NES-001 cap replacement guide for the av power module

Post by jcarlos » Mon Dec 21, 2020 11:47 pm

Good morning everyone. I have a NES that loads games (solid red light) but does not give video signal (blue screen). I know the problem is in the RF / power module. Do you think that if I replace each of these capacitors the problem will be solved or could it be something else? Thank you and best regards. :mrgreen:

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Re: NES-001 cap replacement guide for the av power module

Post by lidnariq » Mon Dec 21, 2020 11:53 pm

Do you know whether the blue screen is from the NES or the TV's normal "there's no video" blue screen?

jcarlos
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Re: NES-001 cap replacement guide for the av power module

Post by jcarlos » Mon Dec 21, 2020 11:56 pm

Good morning everyone. I have an RF / power module from a Nintendo NES that has burned out the AN7805, and those little surface mount capacitors, well I think they are capacitors, which are next to the 7805 (from the input to ground and ground to output) they have also been burned. Do you know what value and voltage they are? Thank you and best regards. :beer:

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Re: NES-001 cap replacement guide for the av power module

Post by jcarlos » Wed Jan 06, 2021 11:08 pm

It seems that my old television gives a blue screen when it does not receive a video signal. Well, I have connected my NINTENDO NES-001 to an LG flat screen and it says it does not receive a video signal. Therefore, the fault is in the video part of my console. :cry:

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Re: NES-001 cap replacement guide for the av power module

Post by jcarlos » Wed Jan 06, 2021 11:23 pm

I have been researching. The problem seems to be in the graphic processor (PPU), with reference RP2C07A-0, of my mainboard and it is faulty, I know it because when comparing it with the mainboard of the same console of my brother that is good, it gives me wrong measurements. Starting from here, I already know what the fault is, I have a doubt, please, if someone knows something and can help me I would be very grateful. Since my RPC207A-0 is impossible to find. I have seen on the internet a second-hand mainboard of the NINTENDO NES-001 exactly the same as mine, with an RP2C07-0 (without the final A) fitted at the factory, it is the only thing that varies with respect to mine, therefore , this tells me that it seems that the RP2C07A-0 can be replaced by the RP2C07-0 both are from the manufacturer RICOH, but it turns out that the latter is expensive and difficult to find, after much effort I have found an RP2C07-0 in a website of a Chinese distributor, since the RP2C07A-0 is impossible, but it asks me about € 27, while I have read on an internet page that the integrated UA6541 from the UMC manufacturer, with the same pinout (40 pins), is A clone of the RP2C07, this UA6541 is much cheaper and easier to find, on EBAY there is it for about € 2 and more shipping costs, but here is my question, is it fully compatible? Will it give any problem when replacing it? , no dealer can answer me to this, if anyone knows something about this, please thank them laugh a lot. Thanks and greetings to everyone. :beer:
Last edited by jcarlos on Thu Jan 07, 2021 12:34 am, edited 2 times in total.

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Re: NES-001 cap replacement guide for the av power module

Post by jcarlos » Wed Jan 06, 2021 11:31 pm

This is my mainboar, although it cannot be seen with the naked eye, I know that the PPU RP2C07A-0 is faulty. Thanks and best regards.
Attachments
IMG20210105165229[1] - copia.jpg

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Re: NES-001 cap replacement guide for the av power module

Post by lidnariq » Thu Jan 07, 2021 1:03 am

jcarlos wrote:
Wed Jan 06, 2021 11:23 pm
I have been researching. The problem seems to be in the graphic processor (PPU), with reference RP2C07A-0, of my mainboard and it is faulty, I know it because when comparing it with the mainboard of the same console of my brother that is good, it gives me wrong measurements.
Please say a little more about these measurements. Although broken PPUs are indeed heard-of, they don't usually seem to stop drawing a picture altogether. It'd be a shame if you desoldered it and put a new one in just to find something else also wrong.
Since my RP2C07A-0 is impossible to find.
Please see my page on the wiki: https://wiki.nesdev.com/w/index.php/Use ... _revisions
To wit: the RP2C07-0, RP2C07A, and RP2C07A-0, and UA6541 all exist and should be completely interchangeable.

Furthermore, the UA6538 should be close but not fully compatible.

jcarlos
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Re: NES-001 cap replacement guide for the av power module

Post by jcarlos » Thu Jan 07, 2021 3:23 am

lidnariq wrote:
Thu Jan 07, 2021 1:03 am
jcarlos wrote:
Wed Jan 06, 2021 11:23 pm
I have been researching. The problem seems to be in the graphic processor (PPU), with reference RP2C07A-0, of my mainboard and it is faulty, I know it because when comparing it with the mainboard of the same console of my brother that is good, it gives me wrong measurements.
Please say a little more about these measurements. Although broken PPUs are indeed heard-of, they don't usually seem to stop drawing a picture altogether. It'd be a shame if you desoldered it and put a new one in just to find something else also wrong.
Since my RP2C07A-0 is impossible to find.
Please see my page on the wiki: https://wiki.nesdev.com/w/index.php/Use ... _revisions
To wit: the RP2C07-0, RP2C07A, and RP2C07A-0, and UA6541 all exist and should be completely interchangeable.

Furthermore, the UA6538 should be close but not fully compatible.

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