Hi !
I need help.
I have a problem with Creative Gigaworks S750.
I turn button on from 230V, led turns in green - ok. At power on from remote, sistem turns on then automatic turns off. If I turns once again from remote, sistem turns on and is works normally.At these resets, audio levels is setting to default.
All capacitors from power board was checked with a ESR Meter and is it ok. No blown(balloon) capacitors.
Change only (at ESR meter it was ok):
- 4x 470uF 200V 105C
- 5x 220uF 35V 105C
- 5x 100uF 35V 105C
- 2x 47uF 25V 105C
Same problem. What could be?
Thanks !

Hi!
I don't think it is from glue, because impedance measurement in hi - Mohm show me no value.
The problem was from the beginning, 4 years ago, but not agresive like now.
At that time - 2009, sistem is reset perhaps once at two months.
Capacitor 0.1 uF show me an ESR 100nF - is ok.
Audio system is protected by an UPS -APC from 2009.
Uploaded the problem on the youtube. Look at the link
www.youtube.com/watch?v=GNjoj4JKqFY

Hi !
This is the capacitor values:
4x470uF/200V 105 C, KSC
5x220uF/35V Low Esr 105C, SAMWHA
5x100uF/35V Low Esr 105C, SAMHWA
1x47uF/25V Low Esr 105C, SAMHWA

About video on youtube ... leds flickering from the frame rate processing.
I will try to remove glue with hot air.
Next week I will change: 2x330uf/100V, 68uF/450V, 100nF/50V - X7R 10% -- instead of 0.1uF/50V.
I asked a question. Can I change 2x330v/200V SAMWHA instead of 2x330uF/100V ?
Thanks!

Hi!
I forget to tell you.... 3 months ago I hear like an explode at power on 230V but dont find no one capacitor problem. Now after clean from glue, find a capacitor 471K( ESR say 476 pF)/250V/400V without a pin. In that space it is a problem, dont know where is the second link to the capacitor. See the images. Do you have any pictures ?
Thanks!

This varistor is compatible: JVR14N471K Varistor 300V AC; 385V DC instead of 471k/250V/400V ?
This is more better: VAR10-300 Varistor:metal-oxide; THT; 300V AC; 385V DC; 470V; ±10%; 2.5kA


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The "second link" connected to the primary GND is only from the right photo ? In the left photo no second link ?
This is ok 470pF/400V capacitor, Y1, CY1Y-470P 400V instead of 471K ?

Hi Lex !
Changed all capacitors from the power board,removed the glue, same problem. At power on from remote, relay start then stops fast.
Do you have a schematic (circuit) diagram for power board ?
Thanks.

I remove glue from the board where there are many capacitors >30 pieces.At power 230V don't hear relay. only from power remote = 2 clicks (power on - power off , very fast). I think it is a circuit remote problem. At next power on from remote, audio sistem works normally.

This post has been edited by Galeak: Sep 15 2013, 02:04 AM

Hi Lex!
Transistors near the relay is ok. check the D6,D7 - BR100 = bad diodes.

This post has been edited by Galeak: Sep 17 2013, 01:45 AM

Hi Lex !
I change the diodes D6,D7 now it is ok. Thank you very much !!!

Yes. I made a mistake it is diacs. Replace 2xBR100/03 with 2xDB3.

Hi Lex !
ASUS sound cards is more better like Creative ?
ASUS Xonar D2X, 7.1 - is a good sound card ?
It is safe to use hot silicon on the capacitors?
Thanks.


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