DSE G1928 DVD player PSU failure

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If anyone has a DSE G1928 DVD player, I suggest that they replace all
the BRC branded electrolytic capacitors on the PSU PCB
(ROCO-V22A.POWER Ver 2.0), if they are able. I've just had one come in
with catastrophic capacitor failures and one burned up resistor.

Judging from the following reverse engineered circuit diagram, I
suspect that this is, or will be, a common problem.

See http://www.eserviceinfo.com/download.php?fileid22%837

or

 
http://www.users.on.net/~fzabkar/DVD/Sunplus/G1928/G1928_PSU.gif

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.

Re: DSE G1928 DVD player PSU failure


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I guess that's why DSE can retail the DVD player for $29!
How much do the replacement caps cost? :->

Dave.

Re: DSE G1928 DVD player PSU failure



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Why not just go to Strathfield Car Radios. and get there $19 box. And stop
wasting your time repairing the $29 DSE crap.



Re: DSE G1928 DVD player PSU failure


hi, i think u might have missed the point, who gives a toss about what it
cost  , mayne , he was bored , maybe he lives 100 km or more from  a
strathfield,  hey and just maybe, he WANTED TO. and why not if its only
going to cost a couple bucks  to fix ??? and how do u know the other player
wont bugger up , at least if he replaces  the caps , the machine will last a
bit longer.


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  It doesn't matter.

  Some of the funnest stuff I'm pulled apart to hack has been cheap crap.

  Cheap crap is cheap crap, it's all good.
--
Linux Registered User # 302622
<http://counter.li.org

Re: DSE G1928 DVD player PSU failure


On Tue, 15 Jan 2008 15:24:07 +1100, "Greg"

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The same PSU PCB was used in a $99 Sansui DVD player sold by KMart. In
my experience buying a DVD player is a "crap" shoot (pun intended),
whether you opt for a snob brand or a generic. If your only problem is
the PSU, not the optical pickup, then you are lucky. A PSU failure is
usually a cheap, easy fix. I'm also finding that the current decoder
chips get very hot to the touch. As a rule I add stick-on heatsinks to
these chips and the motor driver chip.

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.

Re: DSE G1928 DVD player PSU failure


On Mon, 14 Jan 2008 15:57:21 -0800 (PST), "David L. Jones"

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It cost me about AU$3 for 8 Hitano EXR series 105degC low impedance
types. Needless to say I did the job for a friend. I believe the G1928
players originally sold for $79, and then were reduced to $49.

Anyway the G1928 has been fun to play with. At the moment I've added
an RS232 port in order to upload and download the firmware. I've also
managed to change the DSE background to a nice alpine scene. One extra
thing this player has is a USB connector on the decoder PCB. However,
there appears to be no corresponding USB module in the firmware.
Fortunately the G1928 looks very similar to an Aldi TEV1020 player
which cost $39 and which does have the USB module present in the
firmware (but not in the hardware). Hopefully I can transplant the
Aldi firmware into the G1928 and get a functioning USB port.

BTW, hacking players with Sunplus chipsets is relatively difficult
because most of the available tools are in Russian or Chinese, as are
most of the hacking forums. I spend most of my time trying to decipher
instructions or console outputs. Unfortunately Google's translator
produces some weird results. If a Russian speaker is watching this
thread, I would welcome some help with a few phrases.

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.

Re: DSE G1928 DVD player PSU failure


On Tue, 15 Jan 2008 16:27:56 +1100, Franc Zabkar

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I should add that the G1928 handles DivX5 and Xvid right out of the
box, even though the DSE web site makes no mention of this.

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.

Re: DSE G1928 DVD player PSU failure



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And they sell here in NZ for $79nz


But stores have limited stock..



Re: DSE G1928 DVD player PSU failure


On Tue, 15 Jan 2008 09:48:58 +1100, Franc Zabkar

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I've just had a look at another G1928. The caps are branded "Rubycon".
They are the YXA series which are "standard" 105degC types, not low
ESR. All are still in good condition, but I wonder if they are
genuine.

This is the datasheet:
http://www.szmuchang.com/admin/eweb/uploadfile/20071213103007566.pdf

The measured dimensions of the caps labelled 220uF/16V and 220uF/25V
are 6x11mm for both, whereas the datasheet specifies 6.3x11mm for the
16V cap and 8x11.5 for the 25V cap. The 1000uF/25V cap measures
10x20mm, which is as expected.

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.

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