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Offline a1200Topic starter

GVP A1230 Turbo+ II Battery
« on: February 03, 2010, 07:18:19 PM »
Does anyone know what battery is right for the GVP Jaws II?

The writing on the battery says:
DS TIC 1494 618AC 9310A5

The only result I get when putting that into Google is a Finnish Amiga user having the same problem. I thought it might be:

http://www.watchbattery.co.uk/shop/products/BAGP-625A.shtml

Based on dimensions, but I assumed it would be a 3V cell. Its only putting out 0.2v so I can't even tell you what it is putting out without seeing a circuit diagram of the board.

I have PM'd someone on amiga.org who said they had a pdf manual, in case its in there. If anyone else has a clue, please let me know. It is not as wide as a CR8032 and it is about twice the height (I don't have a micrometer but with a ruler its about 17mm by 5mm ish).

A pic: http://www.lrgsoftware.com/mike/batt.jpg
Amiga A1200, 3.1 ROMs, Blizzard 1230 MKIV 128MB & FPU, 4GB DoM SSD, Workbench 3.1
 

Offline rkauer

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Re: GVP A1230 Turbo+ II Battery
« Reply #1 on: February 04, 2010, 05:40:31 PM »
Replace it with a VT 2020 rechargeable battery, it is a 3V lithium cell which will give this accelerator a new lifespan.

 Remember to not boot the Amiga with the flat battery, it may explode while trying to recharge. I lost an Apollo 1220 this way.
Goodbye people.

I\'ll pop on from time to time, RL is acting up.
 

Offline Ilwrath

Re: GVP A1230 Turbo+ II Battery
« Reply #2 on: February 04, 2010, 07:53:45 PM »
I don't remember there being a mention of the battery in the manual, but I'll send it over to ya anyhow, so you have it....
 

Offline a1200Topic starter

Re: GVP A1230 Turbo+ II Battery
« Reply #3 on: April 08, 2010, 01:20:28 AM »
By Jove I think I have found it! Got a reply from Michael at GVP and he said it wasn't a battery exactly but a single wire RTC with a battery inside. They were originally developed by Dallas Semiconductor and now iButton develops them and other 1 wire devices such as ID fobs for EPOS systems to temperature monitoring and storage of data. Link.

Going from that site to the UK distributor (there are other distributors - see link above for links to other resellers), I have purchased one which I shall try when it arrives: Link.
Amiga A1200, 3.1 ROMs, Blizzard 1230 MKIV 128MB & FPU, 4GB DoM SSD, Workbench 3.1
 

Offline zombie10k

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Re: GVP A1230 Turbo+ II Battery
« Reply #4 on: April 08, 2010, 04:09:45 AM »
Quote from: a1200;551990
By Jove I think I have found it! Got a reply from Michael at GVP and he said it wasn't a battery exactly but a single wire RTC with a battery inside. They were originally developed by Dallas Semiconductor


@1200 - It's amazing someone still exist from GVP. I was on their site a few months ago the physical address is located in Newtown, PA which is my home town in the US. GVP used to be located in King of Prussia, PA which was sometimes referred to as Greater Valley. I remember going there in the early 90's for a 4MB Memory module for my A530 Turbo. too cool!!

I found some info a while ago about the Battery Backed Clock in the A1230 from the fellow who archived the GVP products page.

Check it out

http://l8r.net/install/GVP/1230iigvpm.html

A1230 Turbo+ Performance Series II Technical Specifications  
CPU Type  Mototola 68030 Processor  
CPU Speed  68030 at 50MHz  
FPU Type  Motorola 68882 Math Coprocessor
 
FPU Speed  68882 at 50MHz
 
RAM Type  GVP SIMM32 high-speed SIMM modules: 1MB, 4MB or 16MB sizes.
 
RAM Speed  60 nanosecond
 
RAM Wait States  0 wait states
 
RAM Capacity  From 0MB to 32MB with current SIMM technology.
 
Battery Backed Clock  Dallas DS1994 battery and clock in a single package (a.k.a. "Clock-In-A-Can")
 
Battery Life  10 years
2 A1000\\\'s, A500 + GVP A530, A1200HD + 68030 @ 50, A2000HD + GVP 030 @25, A600 HD. Looking for more!
 

Offline a1200Topic starter

Re: GVP A1230 Turbo+ II Battery
« Reply #5 on: April 08, 2010, 11:16:41 AM »
I am going to try one of these new ones and see if the binary output is in the correct format. I guess the reason I was only getting 0.3v output from the chip is it is probably powering the internal circuitry and then sending pulses on the card, not sure if 0.3v is high enough though.... Interesting these clock in a cans!
Amiga A1200, 3.1 ROMs, Blizzard 1230 MKIV 128MB & FPU, 4GB DoM SSD, Workbench 3.1
 

Offline a1200Topic starter

Re: GVP A1230 Turbo+ II Battery
« Reply #6 on: April 12, 2010, 11:36:45 PM »
**** Update ****

I tried the chip from the link above and it DOES NOT WORK in this card. Worth a try though. Whilst I had the GVP removed I tried the one that it came with and it was only out by one minute! So I have left that one in.... I thought it didn't have enough charge to even run the clock but now we know the clock is inside....

... if GVP have the actual ones in stock I will get one when I get my 2x16MB simms to replace my 2x4MB but everything is fine for now.
Amiga A1200, 3.1 ROMs, Blizzard 1230 MKIV 128MB & FPU, 4GB DoM SSD, Workbench 3.1
 

Offline a1200Topic starter

Re: GVP A1230 Turbo+ II Battery
« Reply #7 on: June 06, 2011, 06:07:37 PM »
This is the product I needed. I just remembered the link after a fellow Amiga user emailed me asking did I resolve this (thanks Ken). The answer, yes! Its an DS1994 F5. Link
Amiga A1200, 3.1 ROMs, Blizzard 1230 MKIV 128MB & FPU, 4GB DoM SSD, Workbench 3.1
 

Offline a1200Topic starter

Re: GVP A1230 Turbo+ II Battery
« Reply #8 on: June 13, 2011, 10:45:02 AM »
A link for those living in Australia who need a clock button cell for their GVP Turbo II or GVP Jaws II: Link
Amiga A1200, 3.1 ROMs, Blizzard 1230 MKIV 128MB & FPU, 4GB DoM SSD, Workbench 3.1
 

Offline -BobW-

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Re: GVP A1230 Turbo+ II Battery
« Reply #9 on: December 04, 2022, 06:54:39 PM »
I know this is an ancient thread but it helped me solve my clock problem and I wanted to add some context.

The "battery" in the GVP Jaws II is indeed a Dallas Semiconductor "Clock-In-A-Can".  There are modern equivalents still around but can sometimes be difficult to find.  I got lucky and found one on eBay listed as "NEW DS1994L-F5+ 4kb Time Memory iButton".  I may have bought the last one as the auction has now ended.

There is a catch with these iButtons and I see some people have had issues making them work.  From the factory their oscillator is disabled.  You need to enable the oscillator for the clock to advance.  Without enabling the oscillator your Amiga can save the current time but the clock in the iButton will not advance. 

All you need to enable the oscillator is an Arduino, a few jumper wires and a single resistor.  The Arduino code at the following link will program your iButton with no changes:

https://skyduino.wordpress.com/2012/03/17/arduino-tutoriel-1-wire-ds1994/

Don't worry about setting the time.  The portion of code that enables the oscillator is the important piece.  You can set the correct time when you install the DS1994L-F5+ in your accelerator.
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