Inside the iHP-120...
Jan 20, 2004 at 5:04 PM Thread Starter Post #1 of 40

Traveller

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Hi2all!

Some nice (& daring) fellow by the name of Jürgen (aka Buckaroo Banzai on iRiver's forum) opened up his iHP-120 & took a few pics of it (which are online @ ihplounge).

The pics are unfortunately not all that sharp, but I was wondering if any of you mod-heads / DIYers could identify any of the vip components (op-amps, digital o/p stage/connectors, DAC, etc)?

I am curious to see how the iHP-120 rates on a purely technical basis (as I can't complain about the sound quality, but it's all subjective).

Thx for any info - guesses are welcome as long as they are educated
wink.gif


cya,
 
Jan 20, 2004 at 9:49 PM Post #2 of 40

aos

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Samsung chip is almost certainly a standard DRAM - memory buffer. Other than that picture is too blurry where it counts to be able to figure it out (you must be able to see the markings on the "big" chips).
 
Jan 20, 2004 at 9:50 PM Post #3 of 40

Dan the audioman

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Wow i feel special now that ive seen inside my baby!
biggrin.gif
 
Jan 20, 2004 at 11:50 PM Post #4 of 40

Traveller

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Edit: Pics removed (to unclutter thread) as Juergen's post (below) addresses all major components.
 
Jan 21, 2004 at 12:29 AM Post #5 of 40
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well, here's a few quick results from googling and researching ti's site: (these are the easy ones, i'm a total non-EE guy and i got them.)

the 'SUNNY' component is a clocking crystal, 11.2896MHz.

TLV0834I is an A-to-D converter - 8-Bit 41 kSPS ADC Serial Out, Ratiometric Op or Vcc Ref, TTL/MOS Input & Output Compatible, 4 Ch.

lvch16245a is a transceiver - 16-Bit Bus Transceiver With 3-State Outputs

/andrew - pretending to work...
 
Jan 21, 2004 at 10:53 AM Post #6 of 40

Traveller

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Edit: irrelavant info removed (to unclutter thread): the good stuff's below
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Jan 21, 2004 at 2:20 PM Post #7 of 40

Buckaroo Banzai

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Hi Traveller,

I've responded to your reply in the iRiver forum too.
So again. For that moment I'm in the US. I've got the iHP
semiconductor-data not with me. When I'm back in GER I will
announce it in the forum.

After relounge my web-site on february there will be detail-
photos of the semiconductors and a validation of them.

For all the folks with low web-connection I've compressed
the hires pictures too.

I've got written an service-guide how to open the iHP. It's an
draftprint v1.0 in german only, but it will be translated until mid
of february. (www.ihplounge.com/pdfs)


Ciao

Juergen
 
Jan 21, 2004 at 2:43 PM Post #8 of 40

Traveller

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Edit: irrelavant info removed (to unclutter thread): the good stuff's below
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Jan 24, 2004 at 4:38 PM Post #10 of 40

Buckaroo Banzai

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hi Folks,
hi Traveller,

the heart of the iRiver iHP Series is the Motorola audio microprocessor SCF5249VF140.

It's desinprocess is bulit up with Motorola's ColdFire Engine.

Here are some links (German/English)

http://www.motorola.com/mediacenter/...916_23,00.html
http://www.channel-e.de/deutsch/news...003-02-26d.htm
http://www.ea-online.de/O/35/Y/82719...7/default.aspx

http://www.motorola.com.cn/en/news/2003/02/0210_02.asp

http://e-www.motorola.com/webapp/sps...eId=03C1TRrpxN


The Product brief of the SCF5249 you'l find under

www.ihplounge.com/pdfs


The memory-chip is Samsungs KYS561632D-TL75

All the other semiconductors are ordinary components for charching, clocking, lcd power etc.


cheers

Juergen
 
Jan 24, 2004 at 7:44 PM Post #11 of 40

Traveller

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Jan 25, 2004 at 6:51 AM Post #12 of 40

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Quote:

Originally posted by Traveller
Thx, that's a great start
smily_headphones1.gif
Now the question is if say, this TLV0834I A/D is any good...? 8-bit... sounds scary to me...!


I'm thinking that this ADC may be used for the FM radio section... Even the Motorola processor has a 12-bit ADC that could be used instead for line-in recording.
 
Jan 25, 2004 at 2:01 PM Post #13 of 40

Traveller

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Edit: irrelavant info removed (to unclutter thread): the good stuff's below
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My "notes" from the PDF(s):
Coldfire.jpg
 

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