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PC Audio Creative GigaWorks S750 7.1 speaker repair, A short guide and info with pictures...

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djozmo P
post Apr 8 2019, 09:15 AM

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Hello.. Is there anyone who can fix it? I make the amplifier portion of cargo from Turkey.
djozmo P
post Apr 8 2019, 03:01 PM

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Hello.. is your part list same with MichalD part list ?
i have 3 gigaworks s750 and i will repair twos.
Other one of them Zero and i will upgrade that one.
I understand electronics, but not as much as you.
İf you know more recent component of MichalD list than can you suggest for me?
Will Digi-key send me the pieces at of list with the list ? Because I know that it does not write values on stone capacitors.
This high hours capacitors more good than low esr?
Because usually suggest LOW ESR Capacitor for SMPS.
i am sorry my bad english please.
Can you help me please ? Because i love S750 Gigaworks.
djozmo P
post Apr 8 2019, 04:24 PM

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QUOTE(nautilus7 @ Feb 22 2019, 01:02 AM)
@paleta, your top243 doesn't look good... and the 470uF caps also seem bulged too, like MichalD said.
*
Hello.. is your part list same with MichalD part list ?
i have 3 gigaworks s750 and i will repair twos.
Other one of them Zero and i will upgrade that one.
I understand electronics, but not as much as you.
İf you know more recent component of MichalD list than can you suggest for me?
Will Digi-key send me the pieces at of list with the list ? Because I know that it does not write values on stone capacitors.
This high hours capacitors more good than low esr?
Because usually suggest LOW ESR Capacitor for SMPS.
i am sorry my bad english please.
Can you help me please ? Because i love S750 Gigaworks.
djozmo P
post Apr 9 2019, 03:12 AM

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QUOTE(nautilus7 @ Apr 8 2019, 02:54 PM)
No, the parts are not the same. What parts do you need? Are you planning to replace all caps (electrolytics and ceramic)?

I am not sure I understand what you mean about digikey. You have to manually select one-by-one your products, put them in the shopping cart, and order them. At least that is what I did when buying from Mouser.

The electrolytic caps me and MichalD used are high quality, long life, low ESR caps from top brands like Rubycon, Nichicon, Panasonic, Nippon Chemi-con.
*
Thank you so much for answer..
Yes i planning to replace all capasitor.
i said, i have three Gigaworks s750.
Already my a gigaworks it was never used in the zero box. i think it will broken at future.
Other two, broken but working..
Sorry i'm 34 years old and i'm already a DJ. (At clubs since 2001)
Just i know. On the ceramic capacitors are not write full specs.
if Digi-Key send to me all in one packet. i cant. i hope Digi-Key send to me with list style.
(That is to say that the parts are in separate packages and write the inventory code on them.)
i looked MichalD's part list on Digi-Key and i dont see Low ESR Specs on Caps. i see just long life specs MichalD's part list..
Can you give me your part list on Mouser?
And last. Wouldn't it be better if we wore parts of higher UF? Without much exaggeration. For example input 470uF 200V >> 6**uF 200V ?
djozmo P
post Apr 10 2019, 10:44 PM

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QUOTE(nautilus7 @ Apr 10 2019, 04:06 AM)
Hi, mouser, digikey, etc send each part in separate plastic bag with a sticker/label with exact product specs and code numbers. Don't worry about this.

MichalD's electrolytics are low ESR. I don't know what digikey says, but you can also check the product specs (pdf) that comes directly from the manufacturer.

Replacing caps with bigger capacity ones isn't necessarily good or bad. It depends on the purpose of the capacitor.

For example the mains input caps (470uF 200V) can be replaced with bigger ones and basically all electrolytics can be replaced with bigger ones, if I remember correctly, since their purpose is to act as current "banks". Bigger ones can provide more current, or more correctly "current with less ripple". If this will actually make any difference, I don't really know. Also you have to consider the size, because bigger caps may not fit. Also, if you replace existinf caps with much higher capacity ones, maybe you have problems with the RC time constant.

In other caps like some high voltage ceramic ones, their value is carefully selected in relation to a resistance to form a snubber network to filter the higt voltage spikes created by the transformers. So you shouldn't change the value of these.

Also, every low voltage ceramic cap is connected in parallel with one electrolytic. This is a trick to have low ESR value, without using high quality low ESR caps. So theese ceramics don't need to be quality/expensive ones, but anyway.

My mouser parts list:
CODE

1x 450V   68uF -- https://eu.mouser.com/ProductDetail/647-UCY2W680MHD
4x 200V  470uF -- https://eu.mouser.com/ProductDetail/647-LGX2D471MELZ35
2x 100V 1000uF -- https://eu.mouser.com/ProductDetail/647-UHW2A102MHD
2x 100V  390uF -- https://eu.mouser.com/ProductDetail/647-UHW2A391MHD

5x 35V 220uF -- https://eu.mouser.com/ProductDetail/Panasonic/EEU-FR1V221
5x 35V 100uF -- https://eu.mouser.com/ProductDetail/Panasonic/EEU-FR1V101B
2x 25V  47uF -- https://eu.mouser.com/ProductDetail/Panasonic/EEU-FR1E470B

12x 100V 0.1uF  -- https://eu.mouser.com/ProductDetail/581-AR211C104K4R
9x  100V 100pF  -- https://eu.mouser.com/ProductDetail/581-AR211A101K4R
4x  500V 0.01uF -- https://eu.mouser.com/ProductDetail/581-SR217C103KAR
4x  100V 1uF    -- https://eu.mouser.com/ProductDetail/810-FA26X7R2A10500

1x 1kV   47pF -- https://eu.mouser.com/ProductDetail/810-CC45SL3AD470JYNA
5x 1kV  470pF -- https://eu.mouser.com/ProductDetail/810-CK45-R3AD471K-NA
4x 1kV  220pF -- https://eu.mouser.com/ProductDetail/810-CK45-R3AD221K-NA
1x 1kV 3300pF -- https://eu.mouser.com/ProductDetail/810-CK45-B3AD332NNA
1x 1kV 4700pF -- https://eu.mouser.com/ProductDetail/810-CK45-B3AD472KYGA

4x 450VDC 0.1uF -- https://eu.mouser.com/ProductDetail/667-ECW-FD2W104JQ

1x 250Vac 470pF -- https://eu.mouser.com/ProductDetail/81-DE1B3RA471KA4BN1F
1x Optocoupler -- https://eu.mouser.com/ProductDetail/512-FOD817A



Also for the audio boards and for the control pod:

CODE

 2x 50volts   1uF -- https://eu.mouser.com/ProductDetail/647-UES1H010MDM
35x 50volts 4.7uF -- https://eu.mouser.com/ProductDetail/647-UES1H4R7MEM
13x 50volts  22uF -- https://eu.mouser.com/ProductDetail/647-UFG1H220MEM
16x 50volts 2.2uF -- https://eu.mouser.com/ProductDetail/647-UFG1H2R2MDM
10x 25volts 100uF -- https://eu.mouser.com/ProductDetail/647-UFG1E101MPM
23x 50volts  10uF -- https://eu.mouser.com/ProductDetail/647-UFG1H100MDM
 5x 25volts  47uF -- https://eu.mouser.com/ProductDetail/647-UFG1E470MEM

In some cases (in ceramic and audio caps) I ordered more than what is needed in case something goes wrong when soldering, etc.
Also for audio caps I used higher voltage caps, as long as I didn't have any problems with space/size.

I hope I didn't forget anything...
*
Thank you so so much.
The answers were exactly what I wanted. For Digikey.
What do you think? Which is better? MichalD's capacitor list or yours?
Or which is more update (for parts) ?
I'm a little perfectionist, so I'm undecided.
I want to do it once and use it for many years.
I do not know a precedent 5.1 or 7.1 device which is already as beautiful as this device. Do you know?
Also i have z5500 on my saloon. Really it's sound too bad. it's a garbage.
Thank you so so much.
djozmo P
post Apr 13 2019, 03:36 PM

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My brothers, thank you so much. I ordered all the pieces of MichalD from Digikey.
http://www.digikey.com/short/pp8zfm >>>> 186,41$ + 75$ DHL cargo.
That part not unable on Digi-Key - UHW2A102MHD.. i buyed it on mouser 11,49€ + 20€ cargo DHL..
(you know. i will modifiy 3 S750 than i buyed all parts for 3x etc)

But i not find that parts on digikey or mouser. Are these two absolutely necessary after this modification?
FK26X7R2A104K CAP CER 0.1UF 100V X7R RADIAL added between TOP243Y's C and S PIN
FK26X7R2A105K CAP CER 1UF 100V X7R RADIAL added between TOP243Y's C and S PIN

Should I use adhesive for capacitors?
Improper glue is easily spilled, but it can damage the PCB while it is scratching? Is there an easy way to remove this? Acetone Thinner etc?
Because one of the devices is zero and the glue is intact.
The products that are cleaned by LEX are immaculate and scratch free.
I can see this on the front pages of the subject.
I wonder how he cleaned it up. Does anyone knows? With a wood or plastic object? Or acetone or thinner?
djozmo P
post May 8 2019, 02:49 PM

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QUOTE(MichalD @ Apr 30 2019, 11:37 AM)
Hi brother. Thank you so much i started my project 1.
but i have some questions.
1. PSU Board C63 normally alum cap but your list ceramic cap.. this is normal ok..?
2. Amplifier boards c21-20-35-36-37-22-69-28 not have negative port? and i removed caps on that ports caps not have negative port.
Should I put random?
djozmo P
post May 9 2019, 01:02 AM

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QUOTE(MichalD @ May 8 2019, 10:02 AM)
Hello,

1. Yes, ceramic will better withstand heat produced from nearly heatsink.
2. You can't replace these with polar capacitors, you need to use bipolar capacitors only. Bipolar caps doesn't matter which polarity are connected.
*
i changed my part list ... can you check it?
http://www.digikey.com/short/pzfn8b

can i use UES1H4R7MEM?
and i broken on amfi board R44 .. What is that?
djozmo P
post May 9 2019, 01:32 AM

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QUOTE(MichalD @ May 8 2019, 08:16 PM)
Yes you can use this bipolar...don't have time to check whole part list now, seems OK.

What is amfi board? Amplifier board?
*
Sorry.. Yes amplifier board..
Should I change these resistances? on Pic1 ?
And thank you . on Pic3


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Attached Image Attached Image Attached Image
djozmo P
post May 10 2019, 04:50 AM

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QUOTE(MichalD @ May 8 2019, 08:41 PM)
Pictures you've posted are from power supply board, not an amplifier board. R44 on power supply board is 22 ohm and about 2 - 3 W. I think the resistors are functional, just scraped part of outer coating. Try measure it for resistance.
*
Sorry I have 3 messages per day and i dont have for edit message(probation account)
Thank you so much MichalD and Nautilus7
My first Gigaworks's PSU Board Finished smile.gif)
i used some silicon.


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djozmo P
post May 14 2019, 06:22 AM

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QUOTE(MichalD @ Feb 12 2019, 01:18 AM)
Hello, thank you. Here is the capacitor list i've used:

PSU board:

CK45-R3AD221K-NRA CAP CER 220PF 1KV RADIAL  C2 30 28 29
RDER73A471K2K1H03B CAP CER 470PF 1KV X7R RADIAL  C39 35 36 37 38
AR205F104K4R          CAP CER 0.1UF 50V X8R RADIAL  C63

LGR2D471MELZ40  CAP ALUM 470UF 20% 200V SNAP C59 60 69 70
100ZLJ330M12.5X35        CAP ALUM 330UF 20% 100V RADIAL C71 72
35ZLJ220M8X16  CAP ALUM 220UF 20% 35V RADIAL C64 73 74 75 76
50ZLJ100MT78X11.5        CAP ALUM 100UF 20% 50V RADIAL C65 78 66 67 77

450BXW68MEFR14.5X40 CAP ALUM 68UF 20% 450V T/H  C61
35ZLJ47M5X11          CAP ALUM 47UF 20% 35V RADIAL C68 62

DE1B3KX471KA4BP01F CAP CER 470PF 300VAC RADIAL  C7

CC45SL3FD470JYNNA        CAP CER 47PF 3KV SL RADIAL  C3
C317C101K2R5TA  CAP CER 100PF 200V X7R RADIAL C9 46 45 44 43 42 41 40

RDER73A332K2K1H03B CAP CER 3300PF 1KV X7R RADIAL C6
RDER72J103K2M1H03A CAP CER 10000PF 630V X7R RADIAL C20 19 17 18 
RDER72A104K1K1H03B CAP CER 0.1UF 100V X7R RADIAL C11 53 12 13 52 10 48 49 50 79
RDER73A472K2K1H03B CAP CER 4700PF 1KV X7R RADIAL C8
       
Amplifier boards:

UHW2A102MHD          CAP ALUM 1000UF 20% 100V RADIAL  C39
FK22X7R2A105K  CAP CER 1UF 100V X7R RADIAL          C40
RFS-50V2R2ME3#5  CAP ALUM 2.2UF 20% 50V RADIAL  C86 89 85 88 84 87 91 81
RFS-50V220MH3#5  CAP ALUM 22UF 20% 50V RADIAL  C211 79 83 78 82 77 90
UES1H4R7MEM          CAP ALUM 4.7UF 20% 50V RADIAL  C28 69 22 37 27 68 21 36 26 67 20 35 80

Audio processing board:

RFS-16V470MG3#5  CAP ALUM 47UF 20% 16V RADIAL  APB C208       
RFS-16V100ME3#5  CAP ALUM 10UF 20% 16V RADIAL  APB all 10uF
RFS-16V101MH3#5  CAP ALUM 100UF 20% 16V RADIAL  APB C220 218 202 201 221 219       
UES1H4R7MEM          CAP ALUM 4.7UF 20% 50V RADIAL  APB C54 52 58 56 39 40 16 18 17 15

Relay clicking issue fix:

FG20X7R1H106KRT06 CAP CER 10UF 50V X7R RADIAL  added another C63
FK26X7R2A104K  CAP CER 0.1UF 100V X7R RADIAL added between TOP243Y's C and S PIN
FK26X7R2A105K  CAP CER 1UF 100V X7R RADIAL  added between TOP243Y's C and S PIN
*
sorry i didnt find RFS-50V220MH3#5 CAP ALUM 22UF 20% 50V RADIAL C211
c211 ??? where ,is it ?
djozmo P
post May 14 2019, 11:29 PM

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QUOTE(MichalD @ May 14 2019, 08:32 AM)
Audio processing board, here:

[attachmentid=10246247]
*
oW ok.. but c211 on your ampli board in your component list?

QUOTE(MichalD @ Feb 12 2019, 01:18 AM)
Amplifier boards:

UHW2A102MHD          CAP ALUM 1000UF 20% 100V RADIAL  C39
FK22X7R2A105K  CAP CER 1UF 100V X7R RADIAL          C40
RFS-50V2R2ME3#5  CAP ALUM 2.2UF 20% 50V RADIAL  C86 89 85 88 84 87 91 81
RFS-50V220MH3#5  CAP ALUM 22UF 20% 50V RADIAL  C211 79 83 78 82 77 90
UES1H4R7MEM          CAP ALUM 4.7UF 20% 50V RADIAL  C28 69 22 37 27 68 21 36 26 67 20 35 80
I installed 10uf on c211 on the sound processing board smile.gif
well I did not run the devices.
I'm glad I didn't start the device.
Two gigaworks repairs are over.
I must change C211 on audio processing board 10uf to 22uf.




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djozmo P
post May 14 2019, 11:44 PM

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QUOTE(nautilus7 @ Apr 10 2019, 04:06 AM)
Hi, mouser, digikey, etc send each part in separate plastic bag with a sticker/label with exact product specs and code numbers. Don't worry about this.

MichalD's electrolytics are low ESR. I don't know what digikey says, but you can also check the product specs (pdf) that comes directly from the manufacturer.

Replacing caps with bigger capacity ones isn't necessarily good or bad. It depends on the purpose of the capacitor.

For example the mains input caps (470uF 200V) can be replaced with bigger ones and basically all electrolytics can be replaced with bigger ones, if I remember correctly, since their purpose is to act as current "banks". Bigger ones can provide more current, or more correctly "current with less ripple". If this will actually make any difference, I don't really know. Also you have to consider the size, because bigger caps may not fit. Also, if you replace existinf caps with much higher capacity ones, maybe you have problems with the RC time constant.

In other caps like some high voltage ceramic ones, their value is carefully selected in relation to a resistance to form a snubber network to filter the higt voltage spikes created by the transformers. So you shouldn't change the value of these.

Also, every low voltage ceramic cap is connected in parallel with one electrolytic. This is a trick to have low ESR value, without using high quality low ESR caps. So theese ceramics don't need to be quality/expensive ones, but anyway.

My mouser parts list:
CODE

1x 450V   68uF -- https://eu.mouser.com/ProductDetail/647-UCY2W680MHD
4x 200V  470uF -- https://eu.mouser.com/ProductDetail/647-LGX2D471MELZ35
2x 100V 1000uF -- https://eu.mouser.com/ProductDetail/647-UHW2A102MHD
2x 100V  390uF -- https://eu.mouser.com/ProductDetail/647-UHW2A391MHD

5x 35V 220uF -- https://eu.mouser.com/ProductDetail/Panasonic/EEU-FR1V221
5x 35V 100uF -- https://eu.mouser.com/ProductDetail/Panasonic/EEU-FR1V101B
2x 25V  47uF -- https://eu.mouser.com/ProductDetail/Panasonic/EEU-FR1E470B

12x 100V 0.1uF  -- https://eu.mouser.com/ProductDetail/581-AR211C104K4R
9x  100V 100pF  -- https://eu.mouser.com/ProductDetail/581-AR211A101K4R
4x  500V 0.01uF -- https://eu.mouser.com/ProductDetail/581-SR217C103KAR
4x  100V 1uF    -- https://eu.mouser.com/ProductDetail/810-FA26X7R2A10500

1x 1kV   47pF -- https://eu.mouser.com/ProductDetail/810-CC45SL3AD470JYNA
5x 1kV  470pF -- https://eu.mouser.com/ProductDetail/810-CK45-R3AD471K-NA
4x 1kV  220pF -- https://eu.mouser.com/ProductDetail/810-CK45-R3AD221K-NA
1x 1kV 3300pF -- https://eu.mouser.com/ProductDetail/810-CK45-B3AD332NNA
1x 1kV 4700pF -- https://eu.mouser.com/ProductDetail/810-CK45-B3AD472KYGA

4x 450VDC 0.1uF -- https://eu.mouser.com/ProductDetail/667-ECW-FD2W104JQ

1x 250Vac 470pF -- https://eu.mouser.com/ProductDetail/81-DE1B3RA471KA4BN1F
1x Optocoupler -- https://eu.mouser.com/ProductDetail/512-FOD817A



Also for the audio boards and for the control pod:

CODE

 2x 50volts   1uF -- https://eu.mouser.com/ProductDetail/647-UES1H010MDM
35x 50volts 4.7uF -- https://eu.mouser.com/ProductDetail/647-UES1H4R7MEM
13x 50volts  22uF -- https://eu.mouser.com/ProductDetail/647-UFG1H220MEM
16x 50volts 2.2uF -- https://eu.mouser.com/ProductDetail/647-UFG1H2R2MDM
10x 25volts 100uF -- https://eu.mouser.com/ProductDetail/647-UFG1E101MPM
23x 50volts  10uF -- https://eu.mouser.com/ProductDetail/647-UFG1H100MDM
 5x 25volts  47uF -- https://eu.mouser.com/ProductDetail/647-UFG1E470MEM

In some cases (in ceramic and audio caps) I ordered more than what is needed in case something goes wrong when soldering, etc.
Also for audio caps I used higher voltage caps, as long as I didn't have any problems with space/size.

I hope I didn't forget anything...
*
Sorry my part list mix you and MichalD...
i didnt find its place
2x 50volts 1uF -- https://eu.mouser.com/ProductDetail/647-UES1H010MDM
Where do I attach it? Witch panel ? Can you help me ?
djozmo P
post May 15 2019, 09:18 AM

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QUOTE(nautilus7 @ May 15 2019, 03:32 AM)
@djozmo, I can't remember 100%.

These are bipolar caps. If you can't find any 1uF bipolar in the audio processing boards or in the audio amplifier boards, then it should be in the control pod. I remember it also has a couple bipolar caps.
*
Yes i find.. its on control pod. but i dont change its.
thank you..

QUOTE(MichalD @ May 14 2019, 10:23 PM)
Yep, sorry my bad, 22uF 50V is used in both, audio procesing board and amp. boards and i accidentally put C211 to amp. board part list.
*
Ow ok. You sould edit your partlist for another people..
Thank you so much.. i will try now.. smile.gif first start new S750 smile.gif)
djozmo P
post Apr 7 2020, 07:35 AM

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Hello again.. I replaced all the capacitors and used it for a while but now the green light problem has occurred. Why could it be ?
djozmo P
post Apr 21 2020, 12:58 AM

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QUOTE(MichalD @ Apr 13 2020, 09:59 AM)
Hello, problem with the standby power section, can you measeure the output voltages? Check C6, C61, C8, D10, C63, D13, C62, D26. Capacitors need to be checked for capacity and ESR.
*
Ok.. But which card ??
djozmo P
post May 1 2020, 05:20 PM

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QUOTE(MichalD @ Apr 20 2020, 11:08 PM)
PSU board.
*

Thank you. Refreshing solders on one of the devices solved the problem. But it's a little different on the other device. Everything plays well. 15 minutes later. Clicking sound is coming from relay and it turns off. After 5 minutes, it is getting better and playing. Problem after 10 minutes. I think he does it when it gets hot. And when he does, the green light is blinking behind him.
djozmo P
post May 6 2020, 07:39 PM

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Relay clicking issue fix:

FG20X7R1H106KRT06 CAP CER 10UF 50V X7R RADIAL added another C63
FK26X7R2A104K CAP CER 0.1UF 100V X7R RADIAL added between TOP243Y's C and S PIN
FK26X7R2A105K CAP CER 1UF 100V X7R RADIAL added between TOP243Y's C and S PIN

I think my problem this..
But i didnt understand top243y c and s pin

 

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