Search found 12 matches

by MNiceGuy
Wed Aug 01, 2018 11:02 am
Forum: NES Hardware and Flash Equipment
Topic: Hi-Def NES Reversed Polarity V/GND
Replies: 2
Views: 2707

Re: Hi-Def NES Reversed Polarity V/GND

I reached out to Jason. He is not of the belief that there is any reverse polarity protection on the board but he did say such a circumstance likely did no harm. There were no signs of physical damage on either the Hi Def or NES boards. All the regulators were either spot on or VERY close to it. All...
by MNiceGuy
Sun Jul 22, 2018 8:47 am
Forum: NES Hardware and Flash Equipment
Topic: Hi-Def NES Reversed Polarity V/GND
Replies: 2
Views: 2707

Hi-Def NES Reversed Polarity V/GND

I just finished up another Hi-Def NES but when I went to test it, nothing happened when I turned the power switch on. No image on the screen, no light on the Hi-Def board, nothing. On inspection I realized I had the V and GND wires (attaching to where the 7805 was) backwards. I corrected the issue a...
by MNiceGuy
Sun Apr 15, 2018 3:05 pm
Forum: NES Hardware and Flash Equipment
Topic: Hi-Def NES Install - Top Loader - No Analog Out
Replies: 8
Views: 4270

Re: Hi-Def NES Install - Top Loader - No Analog Out

I was able to figure it out. The problem lies in the PPU interposer. I got a couple kits in the mail Friday and decided to switch out the interposers on the top loader discussed above. Without changing anything else, I got clean RF out on the first try. I then moved the top loader's interposers over...
by MNiceGuy
Fri Apr 13, 2018 8:41 am
Forum: NES Hardware and Flash Equipment
Topic: Hi-Def NES Install - Top Loader - No Analog Out
Replies: 8
Views: 4270

Re: Hi-Def NES Install - Top Loader - No Analog Out

I'll admit this is one of those things that I basically want to figure out just because. I actually have several NES (front and top loaders) along with a period-correct CRT. Even that being said, I have no desire to play the Zapper games so the fact RF does not work on this particular top loader is ...
by MNiceGuy
Wed Apr 11, 2018 8:37 am
Forum: NES Hardware and Flash Equipment
Topic: Hi-Def NES Install - Top Loader - No Analog Out
Replies: 8
Views: 4270

Re: Hi-Def NES Install - Top Loader - No Analog Out

I downgraded to v2.25 and still didn't have any luck with the analog out. I have three pairs of Rev-G CPU/PPU and to the best of my knowledge, they are working examples. I tried two of the three but still got the same result. I thought maybe I wasn't getting a clean connection between the chips and ...
by MNiceGuy
Tue Apr 10, 2018 9:33 am
Forum: NES Hardware and Flash Equipment
Topic: Hi-Def NES HDMI Adapter for the NES
Replies: 623
Views: 233658

Re: Hi-Def NES HDMI Adapter for the NES

The 1-pixel horizontal shift on the top few scanlines occurs on unmodified Famicom and NTSC NES consoles as well because they skip one pixel in the left overscan every other frame in order to align to the chroma subcarrier phase. This pixel lies between the pre-render line and the first picture lin...
by MNiceGuy
Tue Apr 10, 2018 9:28 am
Forum: NES Hardware and Flash Equipment
Topic: Hi-Def NES Install - Top Loader - No Analog Out
Replies: 8
Views: 4270

Re: Hi-Def NES Install - Top Loader - No Analog Out

I have an Everdrive so it's worth a shot. This board came from the most recent batch so I believe 3.01 was installed by default. I'll check it out and report back.
by MNiceGuy
Tue Apr 10, 2018 9:11 am
Forum: NES Hardware and Flash Equipment
Topic: Hi-Def NES HDMI Adapter for the NES
Replies: 623
Views: 233658

Re: Hi-Def NES HDMI Adapter for the NES

I dug a bit into the issue that teknix1 & bird333 have brought up about the wavy lines at the top of the screen. Using a capture card and stepping through frames, I can see the pattern is very consistent; the top three* game rows are offset exactly 1 game pixel to the left every other frame. I test...
by MNiceGuy
Mon Apr 09, 2018 9:12 am
Forum: NES Hardware and Flash Equipment
Topic: Hi-Def NES Install - Top Loader - No Analog Out
Replies: 8
Views: 4270

Hi-Def NES Install - Top Loader - No Analog Out

I've completed the Hi-Def NES installation on two top-loaders thus far. In both instances, the console was in good, working condition via RF before attempting the mod. I own a Hakko desoldering gun so removing the CPU and PPU was painless. No vias or traces were harmed. I chose to remove transistor ...
by MNiceGuy
Mon Sep 11, 2017 11:51 am
Forum: NES Hardware and Flash Equipment
Topic: GBA LCD Potentiometer?
Replies: 3
Views: 1807

Re: GBA LCD Potentiometer?

Thank you!

My schematic skills are not what they could be. Is this the potentiometer in question?
by MNiceGuy
Mon Sep 11, 2017 8:48 am
Forum: NES Hardware and Flash Equipment
Topic: GBA LCD Potentiometer?
Replies: 3
Views: 1807

GBA LCD Potentiometer?

Hi all, I've been performing the AGS-101 mod on a few GBA's recently and I found one of the donor AGB-001's has a problem without an easy solution. For the one in question, it looks like someone removed the rear sticker and attempted to adjust the LCD potentiometer but used too much force. It now sp...
by MNiceGuy
Sun Sep 10, 2017 6:41 pm
Forum: NES Hardware and Flash Equipment
Topic: NES Top-Loader A/V Mod
Replies: 0
Views: 3461

NES Top-Loader A/V Mod

Hello everyone. I've recently completed the A/V mod to my NES Top-Loader by using the kit from RetroFixes. I am not new to this sort of thing (although the mistake I am about to describe may persuade you to think differently) but this was my first top-loader mod. I chose to take the RF box out and I...