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Author Topic: CDTV + SCSI = Problem... help?  (Read 1490 times)

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Offline BomberMAXTopic starter

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CDTV + SCSI = Problem... help?
« on: October 29, 2011, 06:50:33 PM »
Ok folks.
I have unnamed (made in 2010) SCSI controller for CDTV.
It comes with a Seagate 50pin drive http://stason.org/TULARC/pc/hard-drives-hdd/seagate/ST51080N-MEDAL-1080-1080MB-3-5-SL-SCSI2-FAST.html
I'm having problems, when copying/extracting files from th CDTV CD to hard disk or even from disk to the same disk.
errors? - "I/O error", "cannot find file", "infinite loop" and many more anomalies. Mainly I've tried to instal ClassicWB, tried many methods, with help from budies from polish amiga board - no success. I'm damn sure that archives are ok. It breaks copy/extract action in the same place.... always.. :furious:
Sometimes, when copying larger amount of files or bigger file suddenly CD is disappearing from the system... after that I need to eject CADY and pack it back inside...  An yes, I've tried WB from 1.3 to 3.1 - no luck.


I was thinking about termination topic....
Is it possible that I don't made coorect?
As far as I know, contoller has it own terminator, diode, and fuse protection. If it comes for the hard drive, it's SCSI-II with own terminator. The jumper on the hard drive is set to take power for the terminator from the CDTV PSU, but i don't know, if the controller has it own power source for the terminator. On hard drive label a label is sticked with the jumper configs, I can choose from options:

" - Terminator power to the drive terminator and the SCSI bus-    install jumpers on pins 21 and 23 and on pins 22 and 24 of J8.    This is the default.  - Terminator power to the drive terminators only-install a    jumper on pins 23 and 24 of J8.  - Terminator power from another device to the bus and the    drive's terminator disabled-install a jumper on pins 21 and    23 of J8.  - Terminator power to the bus only and the drive terminator    disabled-install a jumper on pins 22 and 24 of J8."

But i fear that if I am to choose wrong setting, I can damage device/s

and what about the CDTV CDROM? And termination? :angry:

Can anyone assist me to resolve my problem? :(

My CDTV spec:

Original MC68000
1MB Chip ECS + 2MB FAST RAM
controller SCSI + Seagate
Kickstart 3.1
FDD.............
A500+ 2Mb chip + Viper520CD
 

Offline Zac67

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Re: CDTV + SCSI = Problem... help?
« Reply #1 on: October 29, 2011, 07:00:39 PM »
If it's just the two devices on the bus (controller + drive) at least one of them needs to provide termpower - both won't hurt - and both need to be terminated (resistor packs or termination chips). Any photos from the controlller?

Problems with termpower or termination won't damage anything - but the filesystem. ;)
 

Offline BomberMAXTopic starter

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Re: CDTV + SCSI = Problem... help?
« Reply #2 on: October 29, 2011, 07:21:40 PM »
Quote from: Zac67;665703
If it's just the two devices on the bus (controller + drive) at least one of them needs to provide termpower - both won't hurt - and both need to be terminated (resistor packs or termination chips). Any photos from the controlller?

Problems with termpower or termination won't damage anything - but the filesystem. ;)

Danke fur deine interesse! ;)

I've got some pictures but frankly - they are poor quality.

So, can I turn the jumper on the hardrive to provide power for both drive and controller without any electrical/electronic damage? :)(don't know if the controller gets power for the terminator)
One more thing- WB works fine on the disk,  playing black crypt, hired guns (install from a floppy disk)  etc.  also, when copying/extracting from floppy also....
« Last Edit: October 29, 2011, 07:27:11 PM by BomberMAX »
A500+ 2Mb chip + Viper520CD
 

Offline Zac67

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Re: CDTV + SCSI = Problem... help?
« Reply #3 on: October 29, 2011, 08:09:37 PM »
Quote
Danke fur deine interesse! ;)
Kein Problem. :D

Quote
So, can I turn the jumper on the hardrive to provide power for both drive and controller without any electrical/electronic damage? :)(don't know if the controller gets power for the terminator)
Yes. Termpower that is, it's the only power distributed on the bus. Regular power needs to be supplied from the PSU.

Quote
One more thing- WB works fine on the disk,  playing black crypt, hired guns (install from a floppy disk)  etc.  also, when copying/extracting from floppy also....
So, you have zero problems using the HDD alone, floppy alone and both in combination? Then probably the CD drive is the problem. Tried copying some files to RAM:?
 

Offline BomberMAXTopic starter

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Re: CDTV + SCSI = Problem... help?
« Reply #4 on: October 29, 2011, 08:50:39 PM »
OK I've tried various settings with the terminator power, without success - disk is not powering on or it is but doesn't want to boot. I'm assuming now that the termination settings are just fine.

If I copy the CD to HDD first and the extract archive from HDD to the same HDD= there are problems. When operating FDD+HDD = there are no problems....

http://imageshack.us/photo/my-images/402/imgp0199u.jpg/

http://imageshack.us/photo/my-images/338/imgp0200b.jpg/
« Last Edit: October 29, 2011, 08:56:30 PM by BomberMAX »
A500+ 2Mb chip + Viper520CD