Author Topic: Need info about 35V 1000MFD cap in MC8000 Vertical Turntable.  (Read 628 times)

0 Members and 1 Guest are viewing this topic.

Offline Aim eYacht

  • Contributor
  • Posts: 6
  • Country: ca
Need info about 35V 1000MFD cap in MC8000 Vertical Turntable.
« on: August 09, 2018, 10:48:06 pm »
Hi there,

I'm trying to restore this wonderful piece and I've run into a rather odd situation. The cap I need to replace is a Unicon 35V 1000MFD or 1,000,000uF. Is this right or some kind of joke which I don't understand the context of?

Thanks in advance.
 

Online tautech

  • Super Contributor
  • ***
  • Posts: 19596
  • Country: nz
  • Taupaki Technologies Ltd. NZ Siglent Distributor
    • Taupaki Technologies Ltd.
Re: Need info about 35V 1000MFD cap in MC8000 Vertical Turntable.
« Reply #1 on: August 09, 2018, 10:59:24 pm »
Haha, yeah old stuff was listed in MFD, shorthand for micro farad or as we all know and accept now as uF.

1000uF 35V is a common value but if in an SMPS application a low ESR cap should be used.
Avid Rabid Hobbyist
 

Offline coromonadalix

  • Super Contributor
  • ***
  • Posts: 2902
  • Country: ca
Re: Need info about 35V 1000MFD cap in MC8000 Vertical Turntable.
« Reply #2 on: August 09, 2018, 11:28:41 pm »
i dont know where you took this value  there is no 1000 MFD it this turntable ??? 

mfd stand for micro farad in the time it was produced, you must mean EX:  c115 is a 1000ufd 35v  capacitor

Do you know the size for an 0.1 farad or 1000 mili farad capacitor at 35v ?????  it would be around 5 inches diam by 11 inches long canister  lolll

service manual :   http://s.siteapi.org/500b43cd79ebb4d.ru/docs/253a5d122b576606a1db3b43fa6ad83481427657.pdf

or  you have some small capacitor with the number 103 or 103m,  they would be 0.01 ufd,      an number 104 would be an 0.1 ufd, an 105 would be an 1 ufd,   they are exponent numbering

some surface mount resistors have this coding too,  102 would be an 1k resistor, 101  would be 100 ohms, 103 would be 10k ohms

Where i work, we have 470 for an 47 ohm and or the same part is written 47 with an other distributor ??? and now we have other numbers for the same part ???
« Last Edit: August 09, 2018, 11:40:51 pm by coromonadalix »
 

Offline oventech

  • Contributor
  • Posts: 28
  • Country: us
Re: Need info about 35V 1000MFD cap in MC8000 Vertical Turntable.
« Reply #3 on: August 10, 2018, 01:03:00 am »
Found the Service Manual on Vinyl Engine.com. Just register and download for free if you haven't been there before.  https://www.vinylengine.com/library/mitsubishi-diatone/mc-8000.shtml   Also check out audiokarma.org. Plenty of good people who will help there.
 

Offline coromonadalix

  • Super Contributor
  • ***
  • Posts: 2902
  • Country: ca
Re: Need info about 35V 1000MFD cap in MC8000 Vertical Turntable.
« Reply #4 on: August 10, 2018, 03:58:03 am »
i would change all the supply capacitors as a start, it would cover all the main dc lines

c114
c115
c116
c905
c906
c907
c910
c912
c913
c914
c918
c953 up to c963

After that you may have to change  all the other chemicals around the ic's, the power amplifier, if you have too much noise or hisss  etc...
 

Offline Aim eYacht

  • Contributor
  • Posts: 6
  • Country: ca
Re: Need info about 35V 1000MFD cap in MC8000 Vertical Turntable.
« Reply #5 on: August 11, 2018, 12:25:04 pm »
As usual, you guys are so very helpful. :-+

Thank you for all your replies. Here's a picture of the cap.
 

Offline Chris56000

  • Frequent Contributor
  • **
  • Posts: 587
  • Country: gb
Re: Need info about 35V 1000MFD cap in MC8000 Vertical Turntable.
« Reply #6 on: August 13, 2018, 04:51:24 am »
Hi!

A nice Service Manual that's been decently scanned from a proper Factory Original for a change!

Old Japanese & American practice was to use 'M' for "microfarad" & "P" for picofarad (nanofarads were usually written as thousands of PF) - with this style and age of manual, C & R values over 1 are shown in "picofarads" and "ohms" if the unit is not specifically mentioned!

Chris Williams
It's an enigma that's what it is!! This thing's not fixed because it doesn't want to be fixed!!
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf