Marantz CD63 & CD67 mods list - Page 1847 - diyAudio
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Old 30th September 2012, 08:37 AM   #18461
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Always point the stripe towards the dot / ground.
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Old 30th September 2012, 08:57 AM   #18462
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I am a beginner. Didnt understand it clearly.

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Old 30th September 2012, 09:08 AM   #18463
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Sorry Badri.

All of the PCB locations for polarized caps will have a circle with a dot indicating where the -'ve pin should go. The vast majority of through-hole capacitors have a stripe on the -'ve side.

If you have a multimeter with a continuity check, you can usually see connection to ground at the striped pin, just to double check. It's sometimes a bit counter-intuitive when dealing with negative supplies because the polarity to ground is reversed, but if you're just swapping components then just keep the stripes on the dots and you should be fine.

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Old 30th September 2012, 09:11 AM   #18464
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The original CD05 and CD06 are non-polar. Any way around is the correct way as long as you're replacing with non-polar.
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Last edited by avr300; 30th September 2012 at 09:15 AM.
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Old 30th September 2012, 09:13 AM   #18465
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Thanks Ben, But CD05 and CD06 position is not for electrolytic caps. Its different comes very near to DAC. There I dont find any dots. Hard to identify the polarity sign.

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Old 30th September 2012, 09:14 AM   #18466
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Default polarity??

Quote:
Originally Posted by avr300 View Post
The original CD05 and CD06 are non-polar.
Thanks AVR. Can you please tell me in which direction I have to solder the cap?
I am going to use BG STD 220uf there.

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Badri
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Old 30th September 2012, 09:18 AM   #18467
avr300 is offline avr300  Denmark
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Don't you have the service manual ? If not, go to post 1 of this thread, follow the link in Ray's signature to his webpage. Here you will find the manual.

In there you will see that the non-polar is parallel to an electrolytic. If you are to replace the non polar with the BG, forget about the non-polar and replace the electrolytic instead. The electrolytic is marked + and -

Last edited by avr300; 30th September 2012 at 09:27 AM.
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Old 30th September 2012, 09:21 AM   #18468
avr300 is offline avr300  Denmark
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Example is to be seen here. CD06 and CD07 is in parallel.
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Old 30th September 2012, 09:39 AM   #18469
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So, In CD53 CD05 and CD06 is not the one to replace. I am following Ray's Mod list. I think I made a mistake. I removed a wrong component. Please see the below picture. That is what I plucked out from CD05 and CD06.

Click the image to open in full size.
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Badri
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Old 30th September 2012, 09:49 AM   #18470
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Thanks Ben and AVR300. Now I understood how to replace. But a doubt I have is, Is CD05 and CD06 is the one to replace in CD53? If yes, I will solder BG STD as mentioned by Ben along with help of the image share by AVR300, by pointing the negative side facing to ground. Am I right?

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