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sempre
 Post subject: IDEAL DONOR HEADS HITACHI
PostPosted: January 6th, 2009, 10:04 
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Hi to all!!

HEADS bads model HTS541616J9SA00

in the site of hddguru one sends regards:
Hitachi 2.5' PCB revision match is mandatory + contry made

With its experience and that it recommends? :?:

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jono-ats
 Post subject: Re: IDEAL DONOR HEADS HITACHI
PostPosted: January 6th, 2009, 11:09 
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Tovarish,

In my experience, if you match the country and MLC code on this series you will be OK.

Some are DA1905 and others may be DA1712.

Jono

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hddguy
 Post subject: Re: IDEAL DONOR HEADS HITACHI
PostPosted: January 6th, 2009, 15:19 
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How important really is the MLC and country to match? I have replaced defective heads with parts that matched model alone and has been successful.

Maybe I am just lucky?? :wink:
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sempre
 Post subject: Re: IDEAL DONOR HEADS HITACHI
PostPosted: January 6th, 2009, 15:55 
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hddguy wrote:
How important really is the MLC and country to match? I have replaced defective heads with parts that matched model alone and has been successful.

Maybe I am just lucky?? :wink:


Hi hddguy! :mrgreen:

its experience was with the same model of this post? (HTS541616J9SA00) :?:
:idea:

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hddguy
 Post subject: Re: IDEAL DONOR HEADS HITACHI
PostPosted: January 6th, 2009, 16:05 
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Yes.

Part was purchased for a specific client, client decided he did not want to proceed, so parts were used on a different clients disk, same model different MLC and country, all data recovered :D


Maybe anyone else has similar experiences?
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sempre
 Post subject: Re: IDEAL DONOR HEADS HITACHI
PostPosted: January 6th, 2009, 16:15 
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hddguy wrote:
Yes.

Part was purchased for a specific client, client decided he did not want to proceed, so parts were used on a different clients disk, same model different MLC and country, all data recovered :D


Maybe anyone else has similar experiences?



Thanks for reply! :mrgreen:

somebody has more similar experiences? :?:

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pcimage
 Post subject: Re: IDEAL DONOR HEADS HITACHI
PostPosted: January 6th, 2009, 16:44 
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Yes, have had success without matching MLC code.

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jono-ats
 Post subject: Re: IDEAL DONOR HEADS HITACHI
PostPosted: January 6th, 2009, 19:13 
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I don't think country code is very important with this series.

But I have found, for example, that some 120 GB drives have 4 heads and others have 3. The MLC codes are different, but the model numbers are the same. You could have a situation where a 4 head Hitachi couldn't be read by a 3 head donor. That's why I suggest matching MLC codes to be on the safe side . . .

Jono

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drc
 Post subject: Re: IDEAL DONOR HEADS HITACHI
PostPosted: January 6th, 2009, 22:08 
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I had one recently where two drives with same MLC and same number of heads were different size... 80GB and 100GB respectively. I thought maybe the size was artificially limited so tried swapping them anyway, did not work.

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TerraNova
 Post subject: Re: IDEAL DONOR HEADS HITACHI
PostPosted: January 6th, 2009, 22:38 
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jono-ats wrote:
I don't think country code is very important with this series.

But I have found, for example, that some 120 GB drives have 4 heads and others have 3. The MLC codes are different, but the model numbers are the same. You could have a situation where a 4 head Hitachi couldn't be read by a 3 head donor. That's why I suggest matching MLC codes to be on the safe side . . .

Jono



Just had this problem, same model and different MLC with 3 heads, donor 4 heads. I noticed Apple branded drives have 3 heads. Weird...
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jono-ats
 Post subject: Re: IDEAL DONOR HEADS HITACHI
PostPosted: January 6th, 2009, 23:55 
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Apple drives can have EITHER 3 or 4 heads . . .

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prodata
 Post subject: Re: IDEAL DONOR HEADS HITACHI
PostPosted: January 7th, 2009, 2:00 
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HTS541616 ALL I see is have 4 head... easy to swap.
HTS541612 got 3 mdel of head. 012,123, n 1234.. not so difficult to swap head too.

I have test many time.
since it is still HTS... come from Apple and Standard PC... it is just the same manufacturer..
So what is the different....

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HDD Spaz
 Post subject: Re: IDEAL DONOR HEADS HITACHI
PostPosted: January 7th, 2009, 4:42 
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I have seen many occasions that a disk with same model, part no and mlc have different amount of heads. I needed to change heads on a 60GB travelstar, which had 4 heads, 3 donor drives purchased all with 3 heads. In the end I had to purchase a 80 GB donor drive because I knew it had the 4 heads. It worked though.
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sempre
 Post subject: Re: IDEAL DONOR HEADS HITACHI
PostPosted: January 7th, 2009, 5:53 
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jono-ats wrote:
I don't think country code is very important with this series.

But I have found, for example, that some 120 GB drives have 4 heads and others have 3. The MLC codes are different, but the model numbers are the same. You could have a situation where a 4 head Hitachi couldn't be read by a 3 head donor. That's why I suggest matching MLC codes to be on the safe side . . .

Jono

Yes, I have here of 120gb with 4 heads!

Thanks for reply!!

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hddguy
 Post subject: Re: IDEAL DONOR HEADS HITACHI
PostPosted: January 7th, 2009, 5:59 
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prodata wrote:
HTS541616 ALL I see is have 4 head... easy to swap.
HTS541612 got 3 mdel of head. 012,123, n 1234.. not so difficult to swap head too.

I have test many time.
since it is still HTS... come from Apple and Standard PC... it is just the same manufacturer..
So what is the different....


So I guess I was partially right! MLC is not for compatibiltiy, but for Head Map.

Thanks prodata :D
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sempre
 Post subject: Re: IDEAL DONOR HEADS HITACHI
PostPosted: January 7th, 2009, 6:01 
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HDD Spaz wrote:
I have seen many occasions that a disk with same model, part no and mlc have different amount of heads. I needed to change heads on a 60GB travelstar, which had 4 heads, 3 donor drives purchased all with 3 heads. In the end I had to purchase a 80 GB donor drive because I knew it had the 4 heads. It worked though.


Very interesting its experience! :!:

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sempre
 Post subject: Re: IDEAL DONOR HEADS HITACHI
PostPosted: January 7th, 2009, 6:03 
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Thanks all Replys!! :mrgreen:

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sempre
 Post subject: Re: IDEAL DONOR HEADS HITACHI
PostPosted: January 7th, 2009, 7:31 
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Hi to all!! :mrgreen:

Exists some possibility of a model HTS541612 of 120gb with 4 Heads to be a donor for one hitachi (HT541616) of 160gb? Somebody already tried here? :?:

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hddguy
 Post subject: Re: IDEAL DONOR HEADS HITACHI
PostPosted: January 7th, 2009, 7:52 
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I think if family is same (HTS54) and heads number is same, then should be OK.
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HDD Spaz
 Post subject: Re: IDEAL DONOR HEADS HITACHI
PostPosted: January 7th, 2009, 7:56 
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only one way to find out. report your findings.
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