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NEC TG-16/TE/TurboDuo => TG/PCE Repair/Mod Discussion => Topic started by: bozo55 on July 05, 2015, 02:29:03 PM
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Hi all,
My Turbo Everdrive works in my PCE Duo but gives all sorts of errors in my TG16. It crashes just browsing the files and if you can manage to get a game to load it crashes after a few seconds. I tried cleaning and reflowing the card connector and that didn't help.
I brought my Everdrive to my friend's TG16 and it worked perfectly on his so I know it's not the Everdrive itself.
I noticed that the board uses Taicon capacitors. Should I replace these? The system is not region modded and works fine with original HuCard games.
I do know that this system has sat in storage for YEARS in its box in a basement. Will that increase the odds of the caps drying out?
Thanks for any help and sorry for creating yet another help thread.
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What kind of Ac adapter are you using? Have you tried swapping with your friends? Just wondering if it is supplying enough power for the everdrive to work correctly.
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I had broke out my duojindance Duo-r, that I had bought a while ago, to test some scart cables I had made as it was the easiest console to get to. Its odd as it works fine with my Everdrive v1 but just gives a white screen on the Everdrive v2. I tried every combination of switch on both console and everdrive with no luck.
My v2 has worked on every other console that I have tried it on. Seems to still be some odd behavior with the v2 on some consoles.
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What kind of Ac adapter are you using? Have you tried swapping with your friends? Just wondering if it is not supplying quite enough power for the everdrive to work correctly.
I have a genuine NEC supply 10.5v 730mA. It's putting out 11 volts at the + Cap where the AC adapter plugs in. I tried a genuine Model 1 Genesis adapter 9v 1.2A and that didn't help. I noticed some voltage droop on pin 38 with the Turbo everdrive inserted. It's a solid 5v but then can fluctuate to a lesser amount, like 3.8 but only for a split second. One of the 1uf50v caps was only showing 1v, but consistently. Others were showing 2v, others 3.4ish. One of the Taicons was showing 4.6v, others 5v, others 11v.
I never thought to try my system on his power supply. Damn.
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I had broke out my duojindance Duo-r, that I had bought a while ago, to test some scart cables I had made as it was the easiest console to get to. Its odd as it works fine with my Everdrive v1 but just gives a white screen on the Everdrive v2. I tried every combination of switch on both console and everdrive with no luck.
My v2 has worked on every other console that I have tried it on. Seems to still be some odd behavior with the v2 on some consoles.
Your Doujindance is region modded? I know these flash carts are super picky with region modded units.
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Yeah but the v1 works fine. The v2 is supposed to use less power so it should be more compatable.
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Yeah but the v1 works fine. The v2 is supposed to use less power so it should be more compatable.
Krikzz claimed that power is not the reason why region mods screw around with Everdrive functionality. Rather, it distorts the signaling. If the V2 is more strict with the signaling requirements, it doesn't matter if it uses less power.
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I tried jumpering pin 38 of the HuCard slot directly to the 7805 output with a 22 gauge wire and that did not help at all (I heard doing this could solve the problem).
Seems to me I have no choice but to replace the caps. I already have 10 of the 16 I need from Nippon-Chemicon and Nichicon. I'm gonna hunt down the rest from my electronics store and see if a recap helps.
Unfortunately the power supply is sealed so I won't be recapping that any time soon. I somehow doubt it's power supply related though, since even the Genesis power supply doesn't help, and that powers a Genesis and Mega Everdrive no problem.
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I hunted down some caps from a local shop but had trouble finding exact values in quality brands.
For the 10 and 100uf caps I ended up huge caps rated at 250v and 160v respectively. Besides the frustration of fitting the caps, are there issues I should be aware of (i.e. heat, power draw, reliability)? Would it be wrong to use such overkill type caps?
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No heat issue, they are just huge and rated to handle a lot more volts than you need.
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I just wanted to chime in and say that within the past week I have had two people contact me saying they have the exact same issue with the everdrive version 2 on their US turbo grafx systems. Works fine with Duos though
I hope this isn't the sign of a wide spread problem with these things. Please post if the caps fix this problem for you.
I'm leaning more towards it being an everdrive issue not the systems since this was never reported using a version 1 everdrive and a US Turbo grafx before.
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I just wanted to chime in and say that within the past week I have had two people contact me saying they have the exact same issue with the everdrive version 2 on their US turbo grafx systems. Works fine with Duos though
I hope this isn't the sign of a wide spread problem with these things. Please post if the caps fix this problem for you.
I'm leaning more towards it being an everdrive issue not the systems since this was never reported using a version 1 everdrive and a US Turbo grafx before.
I'll post results as soon as my cap kit from console5 arrives. I think the fast loading of the RAM on the v2 puts more stress on the system. My friend's working TG16 is a newer serial number than mine I believe but as far as I've heard all TG16s are identical internally. Maybe some system's caps aged worse than others.
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Looks like I'm now in this same boat. On my TG16 games glitch or freeze after a few min of play. Some immediately. However, on my PCE Duo everything works great. bozo55 let us know if the recap fixes your problem.
Oddly I know that my duo needs re capped. I have no to very low audio on it. Yet the ted v2 works perfectly in it.
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Looks like I'm now in this same boat. On my TG16 games glitch or freeze after a few min of play. Some immediately. However, on my PCE Duo everything works great. bozo55 let us know if the recap fixes your problem.
Oddly I know that my duo needs re capped. I have no to very low audio on it. Yet the ted v2 works perfectly in it.
Interesting indeed. Perhaps the US Turbo was an odd beast due to that board revision not existing in Japan. Maybe the signaling on it is not as reliable? All I can say is that I've proven that it can work on a US Turbo. My friend's unit works perfectly with it. If recapping it can't fix it I may just let him have it and wait for a new revision (2.3 or whatever) before I buy another Everdrive.
Kevin Horton, a well respected electronics engineer says that Krikzz's designs could be done better and that he's not surprised at how finicky they are (at least with regards to the version 1, see the GametechUS youtube channel for those vids).
I even experienced an odd glitch today in Air Zonk at the end of Stage 2. The backgrounds started flickering oddly. It only lasted for the last section of the stage and then it was gone by stage 3. Wonder if it's my Duo or just the fact that this cart is wonky.
I am anxiously awaiting the cap kit from Console5. It hasn't crossed the border yet though. I probably won't have it until next week. But I won't be working for most of next week so as soon as those caps are in my hands I'll get on it and report back.
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The caps arrived today. I'm going to get started on this and report back hopefully later today.
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Well guys, I spent the better part of the last few hours recapping the Turbo. I replaced all 16 caps in the system with the Console5 kit. The caps were all Nichicon and looked to be perfect replacements.
The results...
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No change whatsoever. The only cap that was not replaced was the one inside the RF modulator, and Console5 does not provide that cap anyway.
My observations/hypotheses...
1. The system did not perform any differently with the new caps. I think anyone looking to recap their Turbo will be wasting their time.
2. Perhaps the system might work better with the Turbo ED if some of the caps were replaced with ones that were of higher capacitance. Maybe the Turbo pros here could suggest such a mod.
3. The Turbo ED v2 is a finicky bastard. Obviously Krikzz did not test it with the US Turbo very thoroughly because I think this is going to be a common problem.
4. Why some Turbos work fine with it and others don't is beyond me. Maybe there was a change in the manufacturing process of the US Turbo down the line. We should try to isolate working units from non-working with serial numbers. My unit is Serial # 0107255HB
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Hmmmm... I have tested my V2 ED in my Duo and it was fine. I'll get my Turbo out of the box and let you know. I like the idea of documenting the serial numbers to see if it's a random occurrence or if there may have been some nominal hardware change at some point.
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Hmmmm... I have tested my V2 ED in my Duo and it was fine. I'll get my Turbo out of the box and let you know. I like the idea of documenting the serial numbers to see if it's a random occurrence or if there may have been some nominal hardware change at some point.
Cool. Thanks!
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I have the same issue on both of my TG16 consoles. I was waiting for bozo on krikz forums to see if a cap replacement would help and no dice. Not sure what to try next or do.
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Kinda doubt a cap replacement would've helped but that should've been done already if you're familiar with the history of NEC consoles. All your caps are likely leaking right now. Do it regardless.
Well, it's too bad about this new design. :/ Seems to work fine in my US TurboExpress (which is practically the same damn thing as the TG-16). I played a few levels of Blazing Lasers with no problems and did quick random loads of other ROMs, nothing thorough though. I guess I should do some more tests before feeling safe.
I only own the TurboExpress and Duo, so hopefully it'll be fine. The TG-16 I won in 1990 died on me at some point, so I threw it away. Anyway, I do like the quick load times, but the main reason I quickly sold my V1 was in the hope this new V2 would support the Arcade Card as krik mulled the idea over but didn't in the end... There's hope Bonknuts and/or elmer might hack a way some day, but that's a longshot I guess.
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3. The Turbo ED v2 is a finicky bastard. Obviously Krikzz did not test it with the US Turbo very thoroughly because I think this is going to be a common problem.
I think that you've hit the nail on the head there.
The TED2 is krikzz's first design to use a completely different technology based on modern 3.3V chips instead of older 5V chips.
Because of that, the board contains it's own 3.3V power-supply regulator chip ... and so I'd be a little surprised if the problem that you're seeing is because of power issues.
But ... it is probably much more sensitive to signal delay and signal quality issues on the TG16's data and address buses than the old TED1 ... especially since both buses now need to be put through a new 5V-to-3.3V conversion chip which adds it's own delay.
TailChao has already commented on signal issues with the TG16 in his "CD Stupid Card" thread ...
As an aside, I've finally *removed* the region mod in my TG16 since this card now takes care of the only reason I installed it in the first place. However, during that process I did a few quick checks as to how the CD Stupid Card and a real System Card 3.0 react to different propagation delays (either due to wire length or the MC14551s). They both start to fail around the same time (especially with the MC14551s driven with a 5V supply), so I'm not too worried. But I'll still order the 6ns CPLDs and see if things improve (we're using 15ns right now).
The TG16 has verrry long dataline traces on its mainboard and can be a real jerk in regards to signal integrity. The unmodded white PCE I have seems to run nearly anything. I imagine you Duo owners never have to think about any of this as everything is condensed on one board.
Alright, I just found something seriously messed up:
The reset timing on the PCE and TG16 is different, in that the TG16 will occasionally have the CPU released from reset long before the signal rises on the HuCard slot.
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So NEC's redesigned the already tiny and efficient PCE to be made larger to appeal to "Bigger is Better" Americans is going to bite Krikzz in his ass. Still got to wonder what NEC was thinking, spreading out those parts meant longer delay on lines. Could this be why the planned SCSI adapter was never going to work on TG-16 (even with extra RAM added), too long data lines? I read about it being for Duo only.
Makes me wonder if there's a small spike in TG-16 sale on eBay as people are looking for one that works with their new ED and not realize TG-16 design is the problem. And spike in PCE and Duo sale for people who are replacing the TG-16 so they can use ED 2.0
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So NEC's redesigned the already tiny and efficient PCE to be made larger to appeal to "Bigger is Better" Americans is going to bite Krikzz in his ass. Still got to wonder what NEC was thinking, spreading out those parts meant longer delay on lines. Could this be why the planned SCSI adapter was never going to work on TG-16 (even with extra RAM added), too long data lines? I read about it being for Duo only.
Makes me wonder if there's a small spike in TG-16 sale on eBay as people are looking for one that works with their new ED and not realize TG-16 design is the problem. And spike in PCE and Duo sale for people who are replacing the TG-16 so they can use ED 2.0
Nah, I'm hoping Krikzz steps up and addresses this. Either by allowing people to exchange for another revision or hopefully being able to correct this in firmware somehow.
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Is there a way to test if the signal delay is the root cause? Is there a way to get krikzz to look into this or exchange?
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It may take a good osciloscope, a dual trace model, with one probe on CPU end and another on cart connector end to see what the timing offset looks like. If it shows significant delay between that 2 points, then the circuit is too long and ED is too "fast" trying to communicate with CPU. Making it run slower might help.
If the O-scope shows little variation between PCE and TG-16, the issue is not with long trace but something else. Is there something about TG-16 that is different from PCE and Duo beside the flipped data line and RF modulator with different frequency?
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So NEC's redesigned the already tiny and efficient PCE to be made larger to appeal to "Bigger is Better" Americans is going to bite Krikzz in his ass. Still got to wonder what NEC was thinking, spreading out those parts meant longer delay on lines.
To keep the analogy appropriate for the 1980's ... it was like having the "Christie Brinkley" of consoles, and choosing to release "Rosanne Barr" instead. :wink:
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i received mine today. (TED2)
I have 3 U.S. TG's to try it on. Will do so tonight and report the results with serials.
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The serials on my two that don't work are 0162022HB and 9867404HB
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The serials on my two that don't work are 0162022HB and 9867404HB
Yikes! Those pretty much look like bookends...
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Ha. Yeah maybe the ones in the middle work?
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My friend's working unit starts with 99 i believe :(
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The serial number on mine is 9997016HB. No region mod.
It's likely random. Some sort of marginal error like Kevtris was talking about. I know from pokeing around in systems for years the 7805s can output anywhere from like 4.8 to 5 volts. If 40 millivolts can make the deference in region modded systems working with TED a similar thing could be going on here. And it explains why it would work on one tg16 but not another.
Our serials seem to encompass a wide run. Maybe the whole run? Seems like there's not much to benefit from recording serials especially If your friends that worked really starts with 99.
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So NEC's redesigned the already tiny and efficient PCE to be made larger to appeal to "Bigger is Better" Americans is going to bite Krikzz in his ass. Still got to wonder what NEC was thinking, spreading out those parts meant longer delay on lines.
To keep the analogy appropriate for the 1980's ... it was like having the "Christie Brinkley" of consoles, and choosing to release "Rosanne Barr" instead. :wink:
Roseanne Barr + John Goodman are sexy as hell, dammit.
(http://archives.tg-16.com/preview/preview_sexy_booster.gif)
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So NEC's redesigned the already tiny and efficient PCE to be made larger to appeal to "Bigger is Better" Americans is going to bite Krikzz in his ass. Still got to wonder what NEC was thinking, spreading out those parts meant longer delay on lines.
To keep the analogy appropriate for the 1980's ... it was like having the "Christie Brinkley" of consoles, and choosing to release "Rosanne Barr" instead. :wink:
Hahaha!
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So far no good- I've tested it on 2 of my Tg16's and one will not even load the OS (just a random solid coloured screen), while the other loads and will play a game for about 2 minutes before freezing...
I'll post serials later - I may have 2 more of these around...
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Sounds more and more like an issue with the Everdrive on US TG16s
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What if we replaced the stock 7805 with something a little better? Something like Recom R78xx? (http://www.digikey.com/product-search/en?mpart=R-78C5.0-1.0) This one is a drop in replacement that is 5v 1A and I've used it in Atari Lynx 5v mod (the original 5v regulator is a traisnstor and zener diode in emitter-follower design with no protection if one of that fails, the whole system gets 9v and gets cooked)
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I guess it's worth a shot wilykat. Kevs comments aren't necessarily applicable here though. I was just using it as an example of how spotty these can be. His comment was about using the TED v1.x on a region modded PCE. He found that the TED would fail to write if the system was running on 4.97v or higher but would write fine if it was at 4.95v or less. I don't think he tested 4.96 I don't remember.
Anyway This is a different situation. TED v2 and non modded TG16. It does seem to be write failures though. At least for some of us. My TED functions fine in menu but the games seem like they are getting corrupt during the writing process.
If something similar is happening here then yeah we could replace the 7805 but it would still be a crap shoot as to whether or not the system would be supplied with the perfect voltage for the TED to function correctly. Still I guess it's worth a shot. It would be better to test if this is a similar situation with a bench power supply though. That could tell us if this line of thinking is way off or not.
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Here is something I don't think has been mentioned - my TG which will normally run a TED2 game for a few minutes before freezing, won't even initialize the TED2 when using the Turbo Booster...
My 3rd Turbo was also a bust, but I used the Turbo Booster the first time so I am going to do some more testing.
I still have one more to test after that...
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Here is something I don't think has been mentioned - my TG which will normally run a TED2 game for a few minutes before freezing, won't even initialize the TED2 when using the Turbo Booster...
My 3rd Turbo was also a bust, but I used the Turbo Booster the first time so I am going to do some more testing.
I still have one more to test after that...
This sucks. Hopefully Krikzz will address this once he's back from vacation.
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Interesting. No booster on my end. I did buy this unit with a broken RF port so I removed the RF modulator and s-video modded it. Surely the s-vid mod doesn't pull more power then the RF modulator did?
Here's another thought. What power supply is everyone using? I'm using a Genesis model 1.
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Interesting. No booster on my end. I did buy this unit with a broken RF port so I removed the RF modulator and s-video modded it. Surely the s-vid mod doesn't pull more power then the RF modulator did?
Here's another thought. What power supply is everyone using? I'm using a Genesis model 1.
Mine is a mint stock system that sat in storage most of it's life. Using stock AC adapter and RF cable, zero mods. I've tried a Genesis AC adapter and that did not help.
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All right - full play by play of testing 4 TG16's.
1. Serial #9841711HB
Mods:
-A/V out (composite)
-LEDs under grille
Connected via: TGCD Result: TED V2 no start...
Connected via: TurboBooster+ Result: TED V2 no start
Connected via: RF Result: TED V2 appears to work fine - ran it for half an hour with Air Zonk
Connected via: A/V mod Result: TED V2 starts, but is glitchy/freezing after a short while...
2. Serial #unknown - painted over
Mods:
-permanently wired for JP region
-LEDs under TG16 nameplate
Connected via: TGCD Result: TED V2 no start...
Connected via: TurboBooster+ Result: TED V2 started - with card read error - would not go past this.
Connected via: RF Result: TED V2 no start
3. Serial #9919190HB - this unit is pretty much shit canned because it will only play TTI era releases... except Bonk III.
Mods:
-RF unit removed
-S-video mod
Connected via: TGCD Result: TED V2 no start...
Connected via: TurboBooster+ Result: TED V2 no start
4. Serial #022339HB
Mods:
-none - virgin
Connected via: TGCD Result: TED V2 no start...
Connected via: TurboBooster+ Result: TED V2 no start
Connected via: RF Result: TED V2 seems to work fine - ran for over an hour with no freezing.
Summary - I have two units that work via RF and that is it...
With unit #1, I ran it for half an hour with Air Zonk and then switched to the A/V output by plugging in cables - the picture went back and the music kept playing. I switched back to the RF signal and the screen had indeed turned black. "run+select" reset just made everything black and the music stopped too...
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All right - full play by play of testing 4 TG16's.
1. Serial #9841711HB
Mods:
-A/V out (composite)
-LEDs under grille
Connected via: TGCD Result: TED V2 no start...
Connected via: TurboBooster+ Result: TED V2 no start
Connected via: RF Result: TED V2 appears to work fine - ran it for half an hour with Air Zonk
Connected via: A/V mod Result: TED V2 starts, but is glitchy/freezing after a short while...
2. Serial #unknown - painted over
Mods:
-permanently wired for JP region
-LEDs under TG16 nameplate
Connected via: TGCD Result: TED V2 no start...
Connected via: TurboBooster+ Result: TED V2 started - with card read error - would not go past this.
Connected via: RF Result: TED V2 no start
3. Serial #9919190HB - this unit is pretty much shit canned because it will only play TTI era releases... except Bonk III.
Mods:
-RF unit removed
-S-video mod
Connected via: TGCD Result: TED V2 no start...
Connected via: TurboBooster+ Result: TED V2 no start
4. Serial #022339HB
Mods:
-none - virgin
Connected via: TGCD Result: TED V2 no start...
Connected via: TurboBooster+ Result: TED V2 no start
Connected via: RF Result: TED V2 seems to work fine - ran for over an hour with no freezing.
Summary - I have two units that work via RF and that is it...
With unit #1, I ran it for half an hour with Air Zonk and then switched to the A/V output by plugging in cables - the picture went back and the music kept playing. I switched back to the RF signal and the screen had indeed turned black. "run+select" reset just made everything black and the music stopped too...
Strange how using the composite could affect things... Is it a A/V mod box that attaches to the ext port?
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I don't know if you would call them a mod box. They do plug into the ext port though. Official products that gave composite out and added save ram.
That is odd that it works with RF but not anything else whether mod or official. It is a little different for me then. Even though I'm using s-video the ted always boots. And always lets me load a game.
Edit: Lost Monkey I must have glossed over your "AV Mod" result on the first system. That sounds like what mine is doing. the game starts up but will eventually glitch up or freeze.
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1. Serial #9841711HB
Mods:
-A/V out (composite)
-LEDs under grille
Connected via: TGCD Result: TED V2 no start...
Connected via: TurboBooster+ Result: TED V2 no start
Connected via: RF Result: TED V2 appears to work fine - ran it for half an hour with Air Zonk
Connected via: A/V mod Result: TED V2 starts, but is glitchy/freezing after a short while...
Strange how using the composite could affect things... Is it a A/V mod box that attaches to the ext port?
No box - just a direct wiring of the A/V outs from the bus to RCA jacks on the side of the TG16...
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Here's another thought. What power supply is everyone using? I'm using a Genesis model 1.
I forgot to mention this before, but I tried with both an original power supply and a Genesis supply... same results.
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Summary - I have two units that work via RF and that is it...
With unit #1, I ran it for half an hour with Air Zonk and then switched to the A/V output by plugging in cables - the picture went back and the music kept playing. I switched back to the RF signal and the screen had indeed turned black. "run+select" reset just made everything black and the music stopped too...
There are also 2 guys reporting failures on Core II systems (but only when they attach their Tennokoe2).
We need someone that actually does electronic design work to comment on this ... but from my very limited rememberence of university, this sounds like CPU bus-loading issues.
Everything is OK on your 2 unmodified base systems ... but once you add the extra circuitry or trace-length on to the CPU bus with either the TGCD, the TurboBooster+ (the memory backup), or the region-mod ... then that's when it all falls apart.
It's entirely possible that the TED2's two ALVC16424S 3.3V-5V transceivers just don't have the strength to drive good signals against that load.
It could still be power issues, though.
It really needs someone with the right skills/equipment to look at it.
Strange how using the composite could affect things... Is it a A/V mod box that attaches to the ext port?
No box - just a direct wiring of the A/V outs from the bus to RCA jacks on the side of the TG16...
This is the result that confuses me.
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(the original 5v regulator is a traisnstor and zener diode in emitter-follower design with no protection if one of that fails, the whole system gets 9v and gets cooked)
I wish I understood that way back... My SNES kept popping fuses and I ran out of 1 Amp rated, so I went higher cause I thought I solved it, but same thing. Steve told me the regulator burned out so I did a 5 Volt mod to the system, took out the regulator and heat sink, used a new regulated power supply that outputs 5.3 VDC exact and got the system running again. But, I fried one of the SRAM chips with the fuse burnouts and the 12 Volt original power supply, the cheap unregulated style that it was (says 10, goes 12 with my home's 126 VAC supply).
So as wilykat describes, the broken-down regulator in my case, having gotten at the end of its lifespan, sent the full input 12 Volts to the motherboard from its output leg and caused damage!! Only for a second as the new fuse popped again! So yeah, until I swap that SRAM chip out, I have graphical glitches on bitmaps with certain games... :/
Anyway, it would be interesting if this can be solved with a better 5 Volt regulator for the US TG-16!
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I finally have news to report. My untouched (other than cleaning the card slot) Turbografx will sort of run TED V2. I am running it with the original power supply and original RF box. Serial number 9Y88229HB.
I am pretty sure my rom files are good (same ones I ran on my old TED that worked just fine). Many games will load but crash during a boss fight or other random times during the game. Other games just won't load at all. These same games do load fine while running in my Turbo Duo. Perhaps I will contact Bernie and download his rom file and try some of the same games that won't load.
Very interesting indeed.
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This sucks. Hopefully Krikzz will address this once he's back from vacation.
Yea, when his happy ass is done spending all yall's money!
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^ this. He never worried about fixing the v1 with region modded systems so I wouldn't hold my breath. It's going to be up to the community to try and find a fix.
The only thing krikzz could probably do is fix it in later revisions.
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Quick fix. Sell off or return your versions 2 everdrives and get version 1 everdrives instead.
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Heh.
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Quick fix. Sell off or return your versions 2 everdrives and get version 1 everdrives instead.
No need. It works great on my duo which once I recap it will become my primary system to OBEY.
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Quick fix. Sell off or return your versions 2 everdrives and get version 1 everdrives instead.
This. I already regret "upgrading" to V2.
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Well so far no issues, tested it on my modded tg-16, us duo & pc duo. Same rom set i had for v1.1 besides adding the new folder to core, rest is the same and everything is working properly.
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Aaaah, so that's the trick to it! Should've known...
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Well so far no issues, tested it on my modded tg-16, us duo & pc duo. Same rom set i had for v1.1 besides adding the new folder to core, rest is the same and everything is working properly.
Resolution: Proper operation of TED v2 requires a fully charged crystal.
Do I hear a need for a JO Crystal Group Buy?
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Anyone who charges with me at the local Howard Johnson's gets a free crystal*.
*while supplies last
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I've just tested my 3 TED2-wth-usb carts ... I'm very happy to say that they weren't DOA, but the results were mixed.
Core Grafx II Works
Super Grafx Works
Core Grafx II + SuperCDROM Fails
(using SuperCDROM power pass-trough)
Core Grafx II + SuperCDROM Fails
(using separate power supplies)
Super Grafx + SuperCDROM Works
(using separate power supplies)
I tried a few different combinations of my 2 Core Grafx II, 2 Super Grafx, and 2 SuperCDROMs.
After seeing the Core Grafx II + SuperCDROM fail, I was really quite surprised to see the Super Grafx + SuperCDROM work.
I'm really clutching-at-straws to come up with an explanation for this!
I know that there were 2 different versions of the HuC6280 CPU ... do we know which console variants used which versions of the CPU?
I didn't have time to try a System Card 3 image on the TED2 yet ... but I'm going to try that later, since it's pretty much my reason for buying the TED2.
BTW ... Has anyone else tried running the TED2 with a SuperCDROM yet?
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SuperGrafx and CoreGrafx came with HuC6280a. All other variants (including CoreGrafxII) had HuC6280.
So the 2 units that I tested had different CPU revisions.
I've absolutely no idea if that really makes any difference, but it makes me wish that I had a blue CoreGrafx to test with the SuperCDROM.
Not that it would probably tell us much ... but it might help krikzz narrow down what it is that he needs to fix in the next revision of the TED2.
It'll be interesting to see how he handles this with the people that want to return their TED2.
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I have 0 horses in this race, but it also seems based on your & lostmonkey's tests that issues arise whenever RF is disabled/bypassed or the expansion port is used for A/V out.
I'm reminded of the Champions Forever boxing game that had two revisions... the first of which would have garbled audio via RF, the second of which would work correctly via RF or A/V. Kind of the opposite situation as TED2, but RF is still the variable.
When I try a CD System Card image, I can certainly do some more testing to see if A/V mods either do or do-not make a difference (for me, at least).
I have RGB mods in one of the Super Grafx and one of the SuperCDROMs, but the other one of each is unmodified.
In my testing ... I always used the regular console's composite A/V out, and not the SuperCDROM's composite A/V out.
As you know, RF isn't even an option on the Core Grafx II and the Super Grafx.
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NightWolve was so awesome to give me a great rom package. With these roms I tested the same games as yesterday as well as a few more.
It turns out I may have had a few glitch roms as now everything I've tried loads on my TG16 (although the same games that wouldn't load yesterday on my TG DID load on my DUO). Anyways, I've put some time into a few games and they all ended with crashes. The only game that didn't crash (out of what I tested) was R-Type.
It seems like even for those of us who get the TED to run on a Turbografx it is still very unreliable. If I didn't have a Duo I would be trying to trade this thing back in for a V1. I had zero issues with V1. Why was I a dumb ass and had to have the latest and "greatest"?
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For those that don't read the forum on krikzz's site, he's confirmed that he's repeated the problem that people are seeing, and that he's going to be working on a fix.
But since he's talking about being pretty sure that he'll either have to reprogram the FPGA or change the hardware design ... I'm not sure exactly where that leaves everyone here that's having problems.
It was interesting to hear that he didn't test the TED2 on a TG16 before release.
http://krikzz.com/forum/index.php?topic=3239.msg31048#msg31048
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Ah, so the plot thickens... Well, you know, shit happens.. He's still a very talented and impressive individual beyond comparison!
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It's good to know he's looking into it. If it ends up needing to be sent back or exchanged though I'll just cut my losses. I have no complaints about how it works on my Duo.
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Krikzz is good about taking care of this stuff. It sucks to send back but he will take care of it
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Krikzz is good about taking care of this stuff. It sucks to send back but he will take care of it
Maybe he is good for stuff like this, but we are talking about every single TEDv2 that he has shipped to date having compatibility issues with a large percentage of the worldwide installed hardware base.
Any that don't get refurbed now are just going to cause issues for someone else when they hit the "used" market down the road.
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Krikzz is good about taking care of this stuff. It sucks to send back but he will take care of it
I have a hard time believing in this 100%. If Krikzz was really worried about compatibility issues with V2 why hasn't he pulled it off the site until a fix is found? If he is planning to help customer's who have already purchased a V2, it seems like he would only be making a lot more work for himself by continuing to sell V2. They are still selling V1 ' s on there so people not completely in the know about the issues can still buy a TED if they wanted to.
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This is the first time a Everdrive revision took a step back on compatability (to my knowledge).
Is revision 1 still available to exchange for? Rev 1 was solid.
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Krikzz is good about taking care of this stuff. It sucks to send back but he will take care of it
I have a hard time believing in this 100%. If Krikzz was really worried about compatibility issues with V2 why hasn't he pulled it off the site until a fix is found? If he is planning to help customer's who have already purchased a V2, it seems like he would only be making a lot more work for himself by continuing to sell V2. They are still selling V1 ' s on there so people not completely in the know about the issues can still buy a TED if they wanted to.
Desh he must have found more of the version 1 because I was looking on Wednesday and he only had the 2nd available for sale in his store. At least he still has the option available for people if they don't want to be beta testers for the version 2
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I posted this in another thread: I received a response from Krikzz about the v2.2 fiasco today and he has a fix ready but we'll have to return our v2.2s to him to have the FPGA re-flashed. If you need this update, send your TEDs back to him using this form: http://krikzz.com/return_form.txt
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I posted this in another thread: I received a response from Krikzz about the v2.2 fiasco today and he has a fix ready but we'll have to return our v2.2s to him to have the FPGA re-flashed. If you need this update, send your TEDs back to him using this form: http://krikzz.com/return_form.txt
He's finally confirmed that a fix now exists on his own forum ...
http://krikzz.com/forum/index.php?topic=3287.msg31386#msg31386
Looks like there's going to be a new revision 2.3 board, and that anyone can request a replacement.
It's good to see that he's looking after his customers.
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yeah Krikzz takes care of his customers
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I pm'd him for instructions on returning mine...
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So I know this is off topic... Kind of, but I have a US DUO that is region modded, and from what I have read/been reading I cannot get an ED unless I un-mod the system or wait for a revision that can handle the mod, and its because of the power differences form having the mod Vs not, Correct? (Im not the most knowledgable but Im trying to understand)
Sorry to thread jack, just wanted to clarify.
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It's mostly a crapshoot. It may work for you it may not. Unless the latest revision has fixed things that is.
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we have been having issues with some modded systems and the VER2
it doesnt matter if we redo the mod, and the issue follows the system, not the mod if we swap things around
not sure why it effects some systems and not others
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Weeellll
I was really wanting to get one, but dont feel like wasting 80 bucks on a crapshoot atm. Would rather just get a few good commons that I know will work.
Here is to hoping that they soon fix it so I can buy one *Fingers crossed*
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just find a place selling old stock of the version one everdrive.
http://shop.krikzz.com/Turbo-EverDrive-v1-Old-stock-TBEDV1.htm
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I've been looking to get an Everdrive too, but I am worried since my PCE Duo is region modded. Can you tell if it will work by knowing who modded it? My Duo is from doujindance, who afaik is a well-known and respected modder. Anybody have experiences with region modded Duos from him and TEDs?
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my ED v2 doesnt work on my duojindance modded duo-r. I got it a couple years ago though so I dont know if hes using the same mod now. I have heard other people reporting the same thing about them not working on theirs modded by him too though.
http://krikzz.com/forum/index.php?topic=3279.0
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Thanks for the reply. Hmh, that means that the best chance would be to try a TED v1. Still kind of a big risk for the price...
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the v1 should work fine. i had no issues using a v1 on my duojindance duo-r
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Generally if the region mod is done via a big ass switch and about 24 wires, it is 100% compatible with all Turbo ED. If it uses switch to control electronic switch IC or uses button to toggle mode on power on, it's crap shoot. You can improve the compatibility by making sure the IC are powered directly off the 5v pin of 7805 regulator chip (no idea what Turbo Express or GT uses) but it's still crap shoot.
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I just purchased my V1 Everdrive about 2 weeks ago. Ill report back if it works on my Modded duo with the "Region mod with the big ass switch". :P
I hope it works, and if not I may have a V1 for sale soon, haha
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This thread had me worried because I saw it after I ordered my Turbo Everdrive V2 but it showed up today and worked great when I tested it on two unmodded US TG16 systems and a region modded Core Grafx. What a relief! I just noticed that mine is v2.1 and not v2.2 like the picture on the site, so I guess I got lucky or something.
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This thread had me worried because I saw it after I ordered my Turbo Everdrive V2 but it showed up today and worked great when I tested it on two unmodded US TG16 systems and a region modded Core Grafx. What a relief! I just noticed that mine is v2.1 and not v2.2 like the picture on the site, so I guess I got lucky or something.
2.1 will work as long as nothing is connected to the expansion port. 2.3 should work in all situations.
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2.1 will work as long as nothing is connected to the expansion port. 2.3 should work in all situations.
Both of the TG16 consoles were hooked up through the expansion port with a 3rd party adapter. This is actually the only way I have of hooking them up to the TV right now.
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2.1 will work as long as nothing is connected to the expansion port. 2.3 should work in all situations.
Both of the TG16 consoles were hooked up through the expansion port with a 3rd party adapter. This is actually the only way I have of hooking them up to the TV right now.
interesting, which 3rd party adapter is that? From what I understand, TurboBoosters and CD-ROM attachments cause instability.
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he may be meaning one of these:
http://www.cgquarterly.com/2010/04/26/building-a-turbografx-16-pc-engine-composite-av-cable/
that would be consuming no power so should be fine
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interesting, which 3rd party adapter is that? From what I understand, TurboBoosters and CD-ROM attachments cause instability.
I got this one (http://www.ebay.com/itm/171710278123), it's probably the same thing as the link mickcris posted but just in an enclosure. Thought for sure this wasn't going to work but so far so good and it is just about time to play with it some more. :]
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You paid to much for it on ebay
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I got this one (http://www.ebay.com/itm/171710278123), it's probably the same thing as the link mickcris posted but just in an enclosure. Thought for sure this wasn't going to work but so far so good and it is just about time to play with it some more. :]
LOL!! i love how the auction states "NEW COLORS AVAILABLE!! NO EXTRA CHARGE! RED/WHITE/GREEN/BLUE/YELLOW and BLACK!!" Wahahahahahahaha thank god he figured out they make other color electrical tape besides black and he wont even charge extra to wrap it in a different color. :lol:
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I'm just glad I have something I can use to hook the system up. When first dug out all the old consoles I only had RF and it stopped working after not very long. I was looking for a booster when I found that but the booster would have cost a lot more and I didn't want to spend any money on another RF adapter. My only complaint about the device is that with it I can't put the back of the system on when using it.
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I'm just glad I have something I can use to hook the system up. When first dug out all the old consoles I only had RF and it stopped working after not very long. I was looking for a booster when I found that but the booster would have cost a lot more and I didn't want to spend any money on another RF adapter. My only complaint about the device is that with it I can't put the back of the system on when using it.
Ya ill agree there, anything is better than rf!
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Update. Mine came today, and I can load the screen to select the ROM but once I select the rom, it goes to the loading screen... Then nothing. Either its a hell of a load time after the loading screen disappears or I may have just wasted 70 bucks on a V1 that wont work with my Modded Duo.
Any help would be awesome...
Edit: Tested on my non modded OG TG16 and it also gets to the boot screen but then as soon as the loading screen disappears it no longer does anything. Just welcomed with a black screen OF DOOM.
Edit Edit:
So I had the ROMs zipped up still, and I guess I think I may have to unzip them to work. The misses is watching Netflix on the "Gaming" TV. i will report when I can... lol
Edit Edit of the Edit edit times 10:
Figured out you have to unzip the ROMs but V1.2 works great on my 27 AWG Big ass mechanical switch region modded DUO and stock TG16.
Just wanted to throw my 2 cents out there.
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I had this issue on my duo. I would load the everdrive on my duo which was not region modded and had all the caps replaced. It would load games but they would be corrupt. It worked perfect on my TG-16 however.
Even had Krikkz look at it and he sent be a brand new one, same thing happened.
http://krikzz.com/forum/index.php?topic=186.0
I made a topic here about it as well and no one knew the answer.
I solved the problem by replacing the reservoir caps on the 7805 regulators with larger ones (2200uF from 1000uF). I also replaced the 7805's with 1.5A 7805's.
http://krikzz.com/forum/index.php?topic=186.msg20167#msg20167
Works fine on my Duo now.
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I solved the problem by replacing the reservoir caps on the 7805 regulators with larger ones (2200uF from 1000uF). I also replaced the 7805's with 1.5A 7805's.
http://krikzz.com/forum/index.php?topic=186.msg20167#msg20167
Works fine on my Duo now.
Good to know, I thought I read somebody else mention that it was a good idea to replace those old regulators with better ones. Something about better protection with newer models when they break down and what not.
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I know this topic is old, but was having an issue on the Shuttle I have for sale. I tried just about everything to get that console to run the v2. I finally was able to get it work by installing a region mod, believe it or not. Before the region mod, it would start getting corrupted graphics and then freeze.
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Lol
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