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> Modifying HPM-10 MP3 player
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This little gadget is nice when your phone is on the table or on your hands. But it quickly disconnects when tucked away on your pockets.
For solving this problem I disassembled the HPM-10 and seprated the connector, soldered flat cable between the connector and the pins on the PCB.
My problem is I've found a two non-working components on the PCB. I need to find a schematic diagram or somebody who also opened his or her MP3 player in order to find out what are these two components and their values. I think that one is a capacitor and the other is a resistor.
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Posted: 2003-02-06 23:45:00
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sounds good! - I've done pretty much the same thing, but have also added a 3.5mm jack into the space where the connector used to sit - that way I can use my preferred headphones for mp3, or use the provided 2.5mm ones for hands free.
What are the components you want to know about?
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Posted: 2003-02-07 13:55:00
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The components that I'm looking for are both surface mount types.
One is located on the same side as the audio connector and is just below and to the right of the crystal (shiny oval part) coded H14725. This is a rectangular component but I'm not sure whether it is a resistor or capacitor, also don't know it's value. If I know what it is and its value I can solder a new one into it's place. Are there any parts below the H8000 ?
The other one is on the other side where the pins of the connector plugging to the phone are. I accidentally unsoldered it when taking the connector out and it quickly disappeared. It is on the left side of the connector where two seperate pins (these are power lines) are. I think that this a capacitor, it is between positive and negative poles of the power coming from the phone. I need to find out its value in order to find another one and solder it.
Dealing with parts this small is like surgery but it is fun.
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Posted: 2003-02-07 22:35:00
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how hard was it to get apart?
and is there any space tgo attach a 3.5 other than removing the phone connector?
my right channel is dead after just 4 days of use, I bought it for 10$ us brand new, sealed and as I threw away the reciept I said to myself "why would I need this reciept?, Ill sell it for 30-40$ instead of returning it..."But the SE guy said "just fax over your reciept and we will ship you a new set of headphones.
SO basicly im screwed, unless I get them to sell me a set of headphones, but that negates any bargain I got in the first place, adding a 3.5jack would be an "ok" soultion but far from perfect.
If it isnt the phones and the right channel of the HPM-10 is dead i'll be livid, Ive gotta learn to save reciepts!!!!!
bhang
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Posted: 2003-02-08 19:07:00
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How did U open up ur MP 3 player ?
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Posted: 2003-02-08 19:20:00
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Theres 2 screws under the label on the back
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Posted: 2003-02-08 19:58:00
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It sounds like the part your looking for is an ic of some sort. Capacitors are commonly marked with something like '1nF 20v' but I have little experience with surface mounted components. Suggest you to do a search at www.elfa.se for the part number.
This message was posted from a T300
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Posted: 2003-02-08 22:16:00
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is there an adapter u can by thaplugs in to the handsfree socet and lets u use normal headphones ?? and how hard is it to replace the jack inside ?
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Posted: 2003-02-09 11:57:00
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Yes you can buy an adaptor to convert the 2.5mm jack to 3.5mm from Maplin electronics for about £1.50 - just go to your nearest store, show them the HPM-10 and say you want an adaptor, they'll dig one out. :o)
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Posted: 2003-02-09 12:04:00
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thanks v.much but is it better to replace the jack in side or just get the adapter??
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Posted: 2003-02-09 12:08:00
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