TI998owner

Hi Group, , Been a very long time since I replaced a set of memory chips On the TI99/4a main board. My question is , found a person that Has some replacement TMS4116-25 memory chips. What I was looking for Was the Original TMS4116-15 , that are in the 99/4a . , Does anyone know if these slower Memorys will work as replacements and any effects or problems they might cause ? , Also does anyone know of a good source for the faster TMS4116-15 Memory ? Or possible does anyone have a bunch they would be willing to Sell plus shipping. , His Basic price per chip he has is .85 CENTS to $1 per chip plus Shipping. If someone has them at or near this price , please PM Me. Thanks for any info in advance TI998owner on atariage Lee

Hi Group, Need a little help. This evening , had one of my CorComp Floppy Disk Controllers fail . Short across main 5 volt Regulator. Tested, replaced the regulator. Found That the short started in U12 the second PAL chip on the Board. , The chip has FDC-U12 on the label. The chip is a PLS153AN Printed on the chip itself. , Does anyone have replacement PAL Chip Available ? Or does anyone Have the correct iNFO to program a replacement PAL For this CorComp FDC ? , Thanks in advance for any help or Info getting this repaired. TI998owner Lee

HI JIM, THANK YOU FOR THE REPLY BACK, AND THE INFORMATION ON THE OTHER THREAD. VERY INTERESTING READING AND MANY GOOD DOWNLOADS, , ONE QUESTION I READ WAS ABOUT WHAT HAPPENED TO SEVERAL OF THE ORIGINAL SAMS BOARDS FROM MIKE DUD , I PURCHASED ( 5 ) OF TE ORIGINAL RUN FROM HIM BACK IN 2015 OR 2016 . SO FAR HAVE ONLY BUILT ( 2 ) OUT OF THE BUNCH. , ALSO ANOTHER POST , SOME HOW , SOMEONE MIXED UP LISTINGS ABOUT ME AND MY TI998 COMPUTER ( WITH THE ) ARMADILLO FLAT CARD EDGE BOARD. I STILL OWN BOTH CARDS AND THE COMPUTER. , TO RICKY DEAN, NOPE , I DONOT OWN A FINALGROM CART YET. BUT THAT IS ON MY TOO DO LIST , THANKS AGAIN FOR THE HELP TI998OWNER LEE

Hi Group, Need a little help. Can someone provide a hyper link to The system software and Memory Tester ver 4.0 for the SAM,s Card. Just completed one of my 512k Boards. , Works very good as standard 32k, now need to setup The rest. Thanks in advance TI998owner Lee

Hi Tim, I am interested in Non-Working card as well. I also sent you a PM to start the process Thank you for the causion note as well TI998owner Lee

Hi Jon, Thank you for the help with the Replacement AC 9203 , it works very well. I received the Pen sets and the replacement Rechargeable battery,s. So far I have tested The HX1000 with the test program in the manual. It does work in one color so far. The self test Should print 4 small boxes in each color. But my Job has taken me away all week , Since the parts and AC adapter arrived. , Next question , anyone have a American supplier Or a web location in English that can supply The paper rolls for the HX1000 ? , Thanks to everyone that has help getting this Working TI998owner Lee

Hi Jon, Thanks for the interest In Helping to find a working AC Adapter for the HX1000 printer/ Plotter. The AC adapter tip is the same size as all of the Other Hexbus add-on,s Rs232 , Modem, Hx1300 99/4a adapter And wafer tape drive. , Placed a order for the PEN,s , plan on ordering replacement Set of Battery's with tabs. , Let me know if you have any luck with a replacement AC adapter. Thanks TI998owner Lee

Hi Group, Thanks Jon for the Info on Best elect@concentric net , I sent them a email and requested a order for Color and black pen sets. Still waiting on Reply back. Probably closed on weekends . , Thanks Jim for the reply on the heaver AC adapter , Still would like to confirm the printer listing On the AC Adapter for voltage and current for The real AC 9203 . , I probably have to build a exact copy of a AC 9203 If it is listed at 9 Volts 700 MA . Could not find any on eBay for sale , About the Ni-cad battery pack, I am off work tommorow So I will remove the leaking pack . check to see if there Is any printing on the inside or plastic cover on each Of the 5 battery's. , Anyone have a workable source for the battery's ? , Thanks TI998owner Lee

Hi Group, I need a little help with a Hexbus Printer/ Plotter HX1000. , The unit did not come with a AC adapter or the Color or Black PEN set. , Can someone that has a HX1000 printer /plotters, check the Voltage and current listing on the ac adapter and tell me If the correct adapter is a AC9203 with the voltage and current Of 9 Volts and 700 MA. I found a listing on DataMath.ORC for The HX1000, but want to make sure it is correct. The listing They have for the CC-40 is not correct. , Also does anyone have a source for the ( 4 ) color Pen set Or a place on the web they can be ordered from that is listed In English and accepts Paypal. , Does anyone also know what other printer/ plotter from Different company's PENs set were comparable with the HX1000 pens set, and the model number and company ? I would also be interested in buying a extra set from someone Here in the group , if anyone would happen to have any . , Next , does anyone have a Schematic for the HX1000 ? , The rechargeable Battery's need replaced, anyone know What the correct battery,s , I.e voltage and current And a source for them as well ? , With the battery's disconnected and a bench supply In there place , the HX1000 seems to function . Just no printing because I don't have any Pens Available to install. , Thanks in advance for any help or Info Please email or PM me Lee

Hi Jim, Thanks for the reply back about the preproduction boards. Let me know when you are ready, cost and such. Just drop me a e-mail Also any word on a workable Schematic Diagram ?

Hi Jim, Sounds Great. No problem on offering to help with De bugging the new board for CC-40 floppy emulation. Do you also have any extra preproduction boards You might want to sell ? Also have you had any Time to draw a working schematic of the new Design ? , Thanks for any help or info Lee

Hi Jon, Just read your question about the Ti-74 and the CC-40 being able to Address each other over the Hexbus. There is the Master /Slave Option on the Hexbus. The trouble is so far no one has been able To make the partial Prototype program, Texas Instruments published In there listing for the Hexbus , related to the TI-99/8 . , Over the past 5 weeks I have been reading over a lot of the Mag,s and newsletters Published on the CC-40. Looking for information I might of missed On just this subject. I did find this info about a working Prototype Software package that Texas Instruments , produced for the PHP-1300 Hexbus adapter for the 99/4a computer. , Listed in ENTHUSIAST 99, Sept 1983 issue Bill Gronos ( Senior Technical Editor ) wrote.... , The Hexbus Adapter along with TI included some Prototype Software that allows the CC-40 to use the 99/4a disk drive and also to Display Data on the monitor screen. This software must be loaded on the 99/4a computer and the 99/4a and the CC40 are plugged into The Hexbus adapter. , Our best bet , would be we could find this Holy Grail Missing Prototype Hexbus Software, it would probably be a very good starting Point , to make all Hexbus computers talk to each other. , LOOKING FOR 99/4a HEXBUS prototype Software package from that Issue Back in 1983 , Anyone can Help, please e-mail me Thanks I. Advance TI998owner Lee

Hi Group, , I for one would like things to stay as they are. I go all the way back to 1979, 99/4 , then upgraded To the 4/A , then in 1984-5 got my TI-99/8 . I have Purchased all most every version or proto type Produced by Texas Instruments, except the 99/2 , It a bunch of fun, and I agree with JON, don't break Up the CC-40 Forum. It easy to find and read as it is. , Thanks in advance, just my 2 cents of Happy Time Lee TI998owner

Hi Group, I am trying to find a download of the original 8K Constant Memory Manual for the CC-40 Computer. , The manual should give details on how to transfer CC-40 Basic programs from the computer to the memory Cart and also how to transfer the same program back To the CC-40 from the 8K Constant Memory. , The TI-74 also has this available , using it 8K constant memory , but the command is different.. , Thanks in advance for any help with the download or the list Of commands for the 8K Constant Memory Cart for the CC-40. , Lee TI998owner

Hi Jim, , Can you check the PRInt layout on the extender board. Comparing the first extender board to the new design , it looks like the board has been turned around, with The printing going the wrong way. , I.e like CROM and Vplug are on the end where A13 and GND Were at on the first board run, if you compare the Two board designs, for the extender. , Thanks, let me know Lee