Rockbox.org home
Downloads
Release release
Dev builds dev builds
Extras extras
themes themes
Documentation
Manual manual
Wiki wiki
Device Status device status
Support
Forums forums
Mailing lists mailing lists
IRC IRC
Development
Bugs bugs
Patches patches
Dev Guide dev guide
Search



Donate

Rockbox Technical Forums


Login with username, password and session length
Home Help Search Staff List Login Register
News:

Rockbox Ports are now being developed for various digital audio players!

+  Rockbox Technical Forums
|-+  Third Party
| |-+  Repairing and Upgrading Rockbox Capable Players
| | |-+  Iriver H340: Only starts with battery disconnected/HDD noise in headphones
« previous next »
  • Print
Pages: [1]

Author Topic: Iriver H340: Only starts with battery disconnected/HDD noise in headphones  (Read 1770 times)

Offline Groove

  • Member
  • *
  • Posts: 2
Iriver H340: Only starts with battery disconnected/HDD noise in headphones
« on: February 25, 2007, 05:56:04 PM »
Hello,

short version:
-Player only starts with battery disconnected; I guess the chips responsible for battery management are  
 broken.

-HDD noise in headphone jack signal; I think the UDA 1380TT chip is ok since the line out jack works
 without any problems.

...and here's the whole story:

My H340 always worked without any problems until one day
I could suddenly hear the harddisk noise in my headphones.
The line out still functioned without any problems.
However I can't live without the headphone jack since I use
it with an LCD remote.

First, I thought it had to be some kind of grounding problem of the headphone jack
and I opened the player.

Disassembling it, I did something really stupid: The battery plug was quite difficult to remove, so I tried to remove it with a screwdriver and created a short circuit by accident  :-\
It was only for a second but the player is partially dead now.

It only starts without the battery plugged in saying "charging".
When I press play then, it starts the iriver firmware and I can use the player normally besides the HDD noise in the headphone jack.


Thank you in advance!



Logged

Offline Groove

  • Member
  • *
  • Posts: 2
Re: Iriver H340: Only starts with battery disconnected/HDD noise in headphones
« Reply #1 on: March 21, 2007, 12:43:26 PM »
Ok, I solved the battery problem :)
The player wasn't really dead, but the display did't turn on after reconnecting the battery.
Luckily, I found a thread with the same problem.
It's a normal rockbox behaviour, I only had to reset the player after reconnecting the battery and it was working, again.

However, there's still the noise problem.
I figured out that the UDA1380TT chip must be defect.
I looked at the datasheet and saw that it houses in fact two amps, one for headphone out and one for lineout.

Does anyone know where to get these chips?
I already searched various shops without success.

If somebody wants to sell me a chip, I would be very happy :)

thanks
Logged

  • Print
Pages: [1]
« previous next »
+  Rockbox Technical Forums
|-+  Third Party
| |-+  Repairing and Upgrading Rockbox Capable Players
| | |-+  Iriver H340: Only starts with battery disconnected/HDD noise in headphones
 

  • SMF 2.0.17 | SMF © 2019, Simple Machines
  • Rockbox Privacy Policy
  • XHTML
  • RSS
  • WAP2

Page created in 0.044 seconds with 15 queries.