Need advice on replacing power supply caps

Triden312 · 23rd October 2011, 04:09 AM

I have a Lanzar 50C and one of the supply caps has a broken leg. it is a Nichicon
10k UF CE series LQ (M) I found the original part number LLQ1E103MESA but they seem to be obsolete. This number LLS1E103MELA seems to have the same data sheet. Question is should I replace all 8 or just the 4 on the broken side.

indianajo · 23rd October 2011, 04:17 AM

Depends on the age of the unit compared to the expected life off the datasheet. I've found 1000 hour caps go bad in about 11-12 years home use. Nichicon has some caps up to 8000 hours expected life. You could also measure the ESD , but the meter that can do that is about $150.

AndrewT · 23rd October 2011, 11:14 AM

How warm does the inside of the chassis get during a typical year of use?

If it's above 40degC regularly, then consider fitting higher temperature rated capacitors. 105degC instead of 85degC.

The most important rating for an electrolytic capacitor is it's voltage rating.

Next, are all choices:- uF, degC, ESR, ripple capacity, tan delta, diameter, height, pin pitch, etc.

scarface31 · 15th November 2011, 11:28 PM

need schematics bad will pay

23rd October 2011, 04:09 AM	#1
Triden312 diyAudio Member Join Date: Oct 2009 Location: kansas	Need advice on replacing power supply caps I have a Lanzar 50C and one of the supply caps has a broken leg. it is a Nichicon 10k UF CE series LQ (M) I found the original part number LLQ1E103MESA but they seem to be obsolete. This number LLS1E103MELA seems to have the same data sheet. Question is should I replace all 8 or just the 4 on the broken side.

23rd October 2011, 04:17 AM	#2
indianajo diyAudio Member Join Date: Jan 2010 Location: Jeffersonville, Indiana USA	Depends on the age of the unit compared to the expected life off the datasheet. I've found 1000 hour caps go bad in about 11-12 years home use. Nichicon has some caps up to 8000 hours expected life. You could also measure the ESD , but the meter that can do that is about $150. __________________ Dynakit ST70, ST120, PAS2,Hammond H182(2 ea),H112,A100,10-82TC,Peavey CS800S,1.3K, SP2-XT's, T-300 HF Proj's, Steinway console, Herald RA88a mixer, Wurlitzer 4500, 4300

15th November 2011, 11:28 PM	#4
scarface31 diyAudio Member Join Date: Nov 2011	lanzar 50c need schematics bad will pay

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Help needed on replacing Adcom 545 power supply caps!	musicallowb	Solid State	9	4th July 2011 12:04 PM
Need advice replacing caps in Harmony H400a guitar amp	tonebrulee	Instruments and Amps	11	22nd May 2010 01:06 PM
Replacing CD Player power supply caps	nexus803	Digital Source	4	14th April 2010 01:28 AM
Need advice on replacing caps in amp P/S	cdwitmer	Solid State	18	18th April 2003 10:00 PM


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

23rd October 2011, 11:14 AM	#3
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	How warm does the inside of the chassis get during a typical year of use? If it's above 40degC regularly, then consider fitting higher temperature rated capacitors. 105degC instead of 85degC. The most important rating for an electrolytic capacitor is it's voltage rating. Next, are all choices:- uF, degC, ESR, ripple capacity, tan delta, diameter, height, pin pitch, etc.

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read