Turbo Everdrive V2 does not work in my US Turbo

[bozo55]

My friend's working unit starts with 99 i believe 

[SephirothTNH]

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.

[esteban]

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. 

Roseanne Barr + John Goodman are sexy as hell, dammit.

 

[NightWolve]

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. 

Hahaha!

[Lost Monkey]

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...

[Sjlewis78]

Sounds more and more like an issue with the Everdrive on US TG16s

[wilykat]

What if we replaced the stock 7805 with something a little better? Something like Recom R78xx? 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)

[SephirothTNH]

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.

[Lost Monkey]

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...

[bozo55]

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.

[SephirothTNH]

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.

[bozo55]

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.

[Lost Monkey]

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...

[bozo55]

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?

[SephirothTNH]

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.