All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 11 posts ] 
Author Message
 Post subject: Caviar SE WD800JB
PostPosted: April 17th, 2018, 14:22 
Offline

Joined: May 28th, 2016, 9:16
Posts: 128
Location: Karlsruhe / Germany
Hey Guys, currently I have a WD800JB Drive on my table. The drive says in PC3000 "DISK SERVO NOT READY ERROR". The drive was extracted from an old computer. Years ago, the drive was working. But now it doesn't anymore. The drive spins up, but then it starts to click.

I have never worked with such old drives before. I already cleaned the contacts to the HSA on the PCB, without any success.

What else can I do? The client isn't going to pay for a head swap. But how can I find out, if the problem is in the heads / preamp or something else? Or maybe the tighten / loosen the Top Lid screw help?


Top
 Profile  
 
 Post subject: Re: Caviar SE WD800JB
PostPosted: April 17th, 2018, 14:27 
Offline

Joined: October 21st, 2007, 8:48
Posts: 1255
D_R wrote:
Hey Guys, currently I have a WD800JB Drive on my table. The drive says in PC3000 "DISK SERVO NOT READY ERROR". The drive was extracted from an old computer. Years ago, the drive was working. But now it doesn't anymore. The drive spins up, but then it starts to click.

I have never worked with such old drives before. I already cleaned the contacts to the HSA on the PCB, without any success.

What else can I do? The client isn't going to pay for a head swap. But how can I find out, if the problem is in the heads / preamp or something else? Or maybe the tighten / loosen the Top Lid screw help?

Start with another working matched PCB.


Top
 Profile  
 
 Post subject: Re: Caviar SE WD800JB
PostPosted: April 17th, 2018, 16:03 
Offline
User avatar

Joined: September 8th, 2009, 18:21
Posts: 10838
Location: Australia
Would it make sense to play with the head map at the end of the ROM? I could probably edit that if PC3000 cannot.

_________________
A backup a day keeps DR away.


Top
 Profile  
 
 Post subject: Re: Caviar SE WD800JB
PostPosted: April 17th, 2018, 16:29 
Offline

Joined: May 28th, 2016, 9:16
Posts: 128
Location: Karlsruhe / Germany
fzabkar wrote:
Would it make sense to play with the head map at the end of the ROM? I could probably edit that if PC3000 cannot.


That was the first thing I tried. Both heads arn't reading.


Top
 Profile  
 
 Post subject: Re: Caviar SE WD800JB
PostPosted: April 17th, 2018, 17:30 
Offline

Joined: March 19th, 2015, 15:01
Posts: 1405
Location: isreal
the lid is already opened ?


Top
 Profile  
 
 Post subject: Re: Caviar SE WD800JB
PostPosted: April 17th, 2018, 17:31 
Offline

Joined: May 28th, 2016, 9:16
Posts: 128
Location: Karlsruhe / Germany
jermy wrote:
the lid is already opened ?

nope


Top
 Profile  
 
 Post subject: Re: Caviar SE WD800JB
PostPosted: April 17th, 2018, 18:41 
Offline

Joined: October 5th, 2015, 18:53
Posts: 433
Location: Canada
Is it clicking? did you try to change pcb?


Top
 Profile  
 
 Post subject: Re: Caviar SE WD800JB
PostPosted: April 18th, 2018, 5:50 
Offline

Joined: May 28th, 2016, 9:16
Posts: 128
Location: Karlsruhe / Germany
Yes, the drive is clicking.
Today I found a compatible PCB in my lab (same number) and put it on the drive. No success. Then I wrote the firmware from the patient pcb on the new pcb, still the same.


Top
 Profile  
 
 Post subject: Re: Caviar SE WD800JB
PostPosted: April 18th, 2018, 7:54 
Offline

Joined: October 21st, 2007, 8:48
Posts: 1255
D_R wrote:
Yes, the drive is clicking.
Today I found a compatible PCB in my lab (same number) and put it on the drive. No success. Then I wrote the firmware from the patient pcb on the new pcb, still the same.

Pretty sure it's Pre-amp.


Top
 Profile  
 
 Post subject: Re: Caviar SE WD800JB
PostPosted: April 18th, 2018, 15:08 
Offline

Joined: May 28th, 2016, 9:16
Posts: 128
Location: Karlsruhe / Germany
Ok, thank you for your help. Just one question:

I have a possible donor drive. The Model is matching and the letter before J in the DCM as well. One thing does not match is the manufacturing date. The patient is made 2004 and the donor is made 2007. The patient is black and the donor is silver. Is it worth a try?

Or is it worth to play with the top screw?

Before I'm going to do the customers drive, I'm going to order some other Caviar SE drives to play with.


Top
 Profile  
 
 Post subject: Re: Caviar SE WD800JB
PostPosted: April 28th, 2018, 19:31 
Offline
User avatar

Joined: June 8th, 2006, 19:44
Posts: 2941
Location: Atlanta, GA
If you remove the PCB and power it up, and some of the small components burn your finders, then the preamp is toast.

You have to match 2 specific characters of the DCM for heads compatibility - positions 6 & 7.

We had a special alignment jig made but it is unnecessary if you use good techniques.

We discovered our own, using the PC3K. It will take more than 1 experimental drive to perfect the technique. :-)

Good luck.

_________________
http://www.datasaversllc.com


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 11 posts ] 

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: Google [Bot] and 30 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group