test-drb June 2012

test-drb@ccmp.vtda.org

193 participants
237 discussions

by md.benson＠gmail.com

On 29 Jun 2012, at 10:37, John Many Jars <john at yoyodyne-propulsion.net> wrote: > Check the PRAM battery is good, and replace if necessary. > > Yes, at the Mac shop, this made 98% of dead Macs come alive. > > Apple got sued at the time, because the solution in the manual was > "replace the main board" for hundreds of dollars, instead of, replace > the PRAM battery, for seven dollars. Ultimately, yes, it needs a new battery but in my experience replacing the PRAM battery with a fresh one doesn't always work straight off the bat - went through this with a 7300, 9600 and a G3 Blue, all needed leaving to forget their PRAM settings before they'd power on. *Then* when you power off and fit the new battery tgey work fine. Back in the days when I used to hang around on the PCI PowerMacs list and the G-List at LowEndMac this was a well known proceedure and got repeated to people who'd already replaced the PRAM battery many times. I have to admit I panicked the first time it happened to me on my 7300 but an experienced tech told me how to fix it. In Apple's defence, the difference between a dead PRAM battery/corrupt PRAM and the symptoms of a board failure are indistinguishable, hence why a lot of people think the machine is dead when it actually isn't. They should at least have issued an adendum, however, so the law suit was appropriate. -- Mark Benson http://markbenson.org/blog http://twitter.com/MDBenson

12 years, 6 months

Raspberry Pi and America, was Re: ST-506/412 to IDE/ATA/SCSI/? adaptor

by md.benson＠gmail.com

There os a team actively working on a Raspberry Pi version of xbmc. There's a link on the RPi website somewhere. -- Mark Benson http://markbenson.org/blog http://twitter.com/MDBenson On 29 Jun 2012, at 09:13, George Rachor <george at rachors.com> wrote: > I was wondering if the Raspberry Pi might be used as a very lightweight xbmc fronted?.. > > George Rachor > > george at rachors.com > > > > > On Jun 28, 2012, at 11:38 PM, Tothwolf wrote: > >> On Thu, 28 Jun 2012, Mark Benson wrote: >> >>> I don't talk much on here because most of the time I am in awe of most >>> of you guys fixing things and sharing knowledge at levels I don't have >>> the tools or the talent to aspire to, and hays off it's awesome. >>> >>> Fact is though, this thread is starting to have echoes of that guy at >>> HP that said he could only see a market for 5 computers at most. >>> >>> I have a Raspberry Pi and run it 24/7 as an emulated VAX 3900 using >>> SimH. It does a damn good job of it too. >> >> I work with a lot of embedded boards these days. Design wise, I rather like the Raspberry Pi. >> >> My single gripe with the project is their choice of Farnell/Newark as their retail distributor. Newark as they are better known in the US has an enormous markup on parts and materials and I've had so many bad experiences with them (including overnight shipping not shipping out for 3-4 days on /multiple/ occasions) that I will simply not deal with Farnell/Newark unless there is absolutely no way I can avoid doing so. >> >> With my latest experience with Newark last year, they charged me $18 for a small heat sink plus $20 for UPS ground shipping (that they -finally- shipped out about 5 days later) PLUS local sales tax for an out of state purchase. All total, about $58.00 USD for a small aluminum heat sink that was less than 1LB shipped. That part was for a rush repair job, and I ate the cost, but I vowed to never deal with Newark again. >> >> By the time Newark tacks on all their fees, that "inexpensive" Raspberry Pi is no longer inexpensive by any definition. Until the Raspberry Pi is available via another distributor, I will not buy one. >> > >

12 years, 6 months

HP 9885M troubleshooting tips

by js＠cimmeri.com

Josh, IIRC, you need to have an 8" floppy in for the testing. cctalk-request at classiccmp.org wrote: Subject: HP 9885M troubleshooting tips From: Josh Dersch <derschjo at mail.msu.edu> Date: Tue, 26 Jun 2012 21:16:48 -0700 To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> Hi all -- Picked up a (mostly) complete HP 9885M (8" floppy drive) set up for my HP 9825 computer. I have the 9885M drive itself, a 98032A interface, and the "Flexible Disk Drive" ROM pak for the 9825. I am unfortunately missing the "9825A Disk System Cartridge" tape (hp p/n 09885-90035). Any ideas if this has been archived anywhere? I haven't found it in my searches. (Not that I currently have any means to get it onto my 9825...) Looks like this is actually required in order to format disks. Sigh... Unfortunately, the drive appears to be failing the built-in diagnostic; there's a single LED that goes on when the test starts and it's supposed to go out within a minute if the diagnostic's passed. The LED on mine just stays on permanently. Unfortunately that's the -only- diagnostic indicator on the unit. I've read through the service manual and unless I'm missing something it doesn't really describe how to go about narrowing down the problem. There's a flowchart that basically says "if the light doesn't go out, it's a problem with the controller in the drive unit" which seems fairly obvious... The service manual mentions a diagnostic on the tape, but I don't have this to aid me. Anyone have any experience with these drives? Any pointers for starting out? (I've checked the obvious things -- the power supply voltages look good, etc). Thanks as always, Josh

12 years, 6 months

Teletype

by elson＠pico-systems.com

Date: Thu, 28 Jun 2012 15:22:16 +0200 From: Sander Reiche <sander.reiche at gmail.com> To: cctech at classiccmp.org Subject: Teletype ASR33 110 or 220V? Message-ID: <CACStewZZ+V4fNskjsSexYHTLFdagDED03vqEsoYZcTL438Gf_g at mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 Hi all, Do you guys know of a failsafe way to check if a Teletype is for 110 or 220V? I've bought one which has a power connector which seems like US mains. The motor is 50Hz, but I guess that won't make a difference. Any quick way to check without completely dismantling the machine? Yes, the 50 Hz will DEFINITELY make a difference. I think the ASR33 has mechanical send as well as receive, so the baud rates will be off in both directions if you run it off the wrong line frequency. But, the motors may be 50/60 Hz, I think they changed a gear to select the mains frequency. I guess try running it on 120 V, if the motor fails to start or runs very sluggishly, then it is most likely a 240 V motor. Jon

12 years, 6 months

Southern haulage

by wdonzelli＠gmail.com

I am planning to take a Southern roadtrip sometime soon (one or two months away) to pick up some gear, and should have space to haul something for someone (or someones). Hudson Valley, NY to mid-PA to Orlando, FL, and all points between. I could probably handle a small rack, like a five footer. If anyone needs something moved that fits my van, please contact me off list. Prices are pretty damn reasonable... -- Will

12 years, 6 months

AT & T 7300 docs and skanky defective Tandy 2000

by rampaginggreenhulk＠yahoo.com

Being shipped or disposed of tomorrow. First offlist email by person/s immediately willing to paypal 60lbs media/35lbs parcel post +10% in either case for my expenses. From 08758. Going going going. Tandy is very yellow or orange, missing screws, dual floppy, color rgb IIRC.

12 years, 6 months

Selling my CT63(CT60) 68060-accelerated Falcon

by julian＠twinax.org

So, I've set to selling my Falcon and its software. It's just the board, with accelerator and memory. http://www.ebay.com/itm/160832830585?ssPageName=STRK:MESELX:IT&_trksid=p398… The software is a separate auction but includes NVDI 5, N.AES 2.0, MagiC 6, and CD Writer Suite 4 with ExtenDOS. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=160832836938#ht_500wt_14… Thanks for looking. Julian

12 years, 6 months

Emulex QD21 firmware

by jgevaryahu＠gmail.com

Seth, Can you dump the EPROMS of the old Rev. D firmware before replacing them? I'm interested in tracking what changed over the different firmware revisions. -- Jonathan Gevaryahu jgevaryahu at gmail.com jgevaryahu at hotmail.com

12 years, 6 months

2x RA-60 + packs

by quapla＠xs4all.nl

As I'm getting rid of 'non classical PDP-11' equipment, I have 2 RA-60's and 5 RA-60 packs which will have to go. Asking price is Eur 250 for the lot. Although both were working when put in storage, they have developed a (small?) fault. One spins up but does not do a head load, the other does not spin up, could be minor fault or else make 1 drive out of these 2. Comes with a KDA-50 (QBus) or UDA-50 (Unibus), depending on choice. Pickup only (near Arnhem, Netherlands) due to the weight of these drives. Ed -- Dit is een HTML vrije email / This is an HTML free email. Zeg NEE tegen de 'slimme' meter.

12 years, 6 months

Lots of vintage electronic and computer stuff

by gerhard.kreuzer＠liftoff.at

Hi, maybe I missed something, but is there a list of that stuff available? Thanks a lot. With best regards Gerhard OE3GKC

12 years, 6 months

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test-drb June 2012