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#21 |
New Member
Join Date: Mar 2020
City & State: Leicester
My Country: United Kingdom
I'm a: Knowledge Seeker
Posts: 3
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![]() Hi just joined this forum, I need help with an Zeppelin ( early MK1) my Red led is on not flashing, I've replaced all six caps ( two showed signs of stress outer casing s wrinkled) but it still the same just a constant red led on (Stuck in standbye)? Checked all three fuses all ok .
Any ideas please, thanks |
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#22 |
New Member
Join Date: Nov 2020
City & State: Honiton
My Country: United Kingdom
I'm a: Knowledge Seeker
Posts: 2
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![]() Hi all,
Picked up a B&W Zeppelin for free last night and was told it had stopped working although it lights up but shows the red flashing LED. After following the guide I found the 47uF 400v and 2200uF 16v caps swollen, ordered up a full set of Panasonic FR caps for £12 and going to see if I can get it going. I'll keep you posted on whether its operational at the end of the next week. Thanks for your write ups and advice, most helpful. |
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#23 |
New Member
Join Date: Nov 2020
City & State: Honiton
My Country: United Kingdom
I'm a: Knowledge Seeker
Posts: 2
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![]() Hi again,
I took the opportunity to replace all 6 caps with Panasonic FR types and paid princely sum of £12, it took no more than an hour to repair. It's now working again and sounds great, for a freebie I cant complain. Just need a blue tooth dongle and add some new fabric over the speaker grills to make it mint again. I am a little gutted as my son has pinched it for his room. |
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#24 |
New Member
Join Date: Jan 2021
City & State: Paris
My Country: France
I'm a: Knowledge Seeker
Posts: 8
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![]() Hello,
I came across this forum and it seems it the only good help on the net. I had the same issues and I decided to follow the instruction to open my speaker, but when I reached PSU it doesn't look evident to me. Maybe the yellow one? I appreciated it if someone could help. Thanks |
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#25 |
Great Sage 齊天大聖
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 24,107
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![]() strange,
the 4 diodes - D201 etc look like they have burned/corroded leads. |
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#26 |
New Member
Join Date: Jan 2021
City & State: Paris
My Country: France
I'm a: Knowledge Seeker
Posts: 8
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![]() Hi Stj,
Many thanks for your quick reply, so do you think i would change them first and give it a try? could you please let me know the model and the details of the 4 diodes to purchase? Sorry I don't have electronic background , I am just trying to avoid throwing electronics Thanks again |
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#27 |
Great Sage 齊天大聖
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 24,107
|
![]() test them with a meter
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#28 |
New Member
Join Date: Jan 2021
City & State: Paris
My Country: France
I'm a: Knowledge Seeker
Posts: 8
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![]() Thanks for your help and prompt reply.
I should find a place to test them since I don't have the meter. When i looked closer it doesn't seem to me that they are burnt, maybe it was the photo. PFA a better photo Thanks |
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#29 |
Great Sage 齊天大聖
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 24,107
|
![]() if you dont have a meter then how can you fix anything?
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#30 |
New Member
Join Date: Jan 2021
City & State: Paris
My Country: France
I'm a: Knowledge Seeker
Posts: 8
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![]() Yes you are right, I thought if I can find the problem I will go around and ask someone in the electronic repair shop, but anyway I am going to buy the meter and soldering kit to be independent!
Thanks |
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#31 |
New Member
Join Date: Jan 2021
City & State: Paris
My Country: France
I'm a: Knowledge Seeker
Posts: 8
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![]() Hello Stj,
I have check the diodes D201, all 4 seems to be good, on the good direction they are reading around 470 and opposite OL. on the other hand I touched the surface of the capacitor in the photo, it seems bulged, I also see the one behind is a bit bulged, as far as I understood from this forum I have to order 4 capacitors below: Rubycon ZLH 2200 uF 16 VDC Rubycon XYG 470 uF 16 VDC Rubycon ZLH 220 uF 35 VDC Rubycon ZL 1000 uF 35 VDC could you please advise? Thanks |
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#32 |
New Member
Join Date: Jan 2021
City & State: Paris
My Country: France
I'm a: Knowledge Seeker
Posts: 8
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![]() Any advice please?
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#33 |
Great Sage 齊天大聖
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 24,107
|
![]() bulged caps are bad.
it means the liquid in them has boiled or generated gas. |
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#34 | |
Super Moderator
Join Date: Jul 2005
City & State: ----
My Country: Sweden
Line Voltage: 230v 50Hz
I'm a: Knowledge Seeker
Posts: 4,672
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![]() Quote:
Replace them and see how you go...
__________________
"The one who says it cannot be done should never interrupt the one who is doing it." |
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#35 |
New Member
Join Date: Jan 2021
City & State: Paris
My Country: France
I'm a: Knowledge Seeker
Posts: 8
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![]() Many Thanks, I will keep you updated, I am ordering them through https://fr.rs-online.com/web/ca/recapitulatifpanier/
Just for the record in case if anyone else need that in future |
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#36 |
New Member
Join Date: Jan 2021
City & State: Paris
My Country: France
I'm a: Knowledge Seeker
Posts: 8
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![]() Hello,
Many thanks for your feedbacks, I changed those 4 caps and my speaker is back to live. I appreciate it, A few comments for the next person: 1. I have damaged the seat for PSU, basically I tried to screw it back gently but somehow all the seats damaged. The plastic became brittle. I eventually managed to fix 3 of the screws so PSU doesn't move. 2. Please look at the disassembly a few times before you start opening, I damaged the locks for the front cover. now the cover is not 100% fixed in its place. 3. In my order the 470uf caps were a bit fatter than the original one, so I was struggling to solder it in its place. Last edited by OmidN; 02-05-2021 at 04:45 PM.. |
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#37 | |
Badcaps Veteran
Join Date: Jul 2011
City & State: Sunny Jacksonville FL
My Country: USA
Line Voltage: 120 Volts 60 HZ
I'm a: Knowledge Seeker
Posts: 2,519
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![]() Quote:
I have done this many times in the past when the original plastic pin break use plastic spacers and screws in place of the broken plastic pins or if you have access to circuit board stand-off is the best solution for this type of problem
__________________
9 PC LCD Monitor 6 LCD Flat Screen TV 30 Desk Top Switching Power Supply 10 Battery Charger Switching Power Supply for Power Tool 6 18v Lithium Battery Power Boards for Tool Battery Packs 1 XBox 360 Switching Power Supply and M Board 25 Servo Drives 220/460 3 Phase 6 De-soldering Station Switching Power Supply 1 Power Supply 1 Dell Mother Board 15 Computer Power Supply 1 HP Printer Supply & Control Board * lighting finished it * These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10% 1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later ) 2 Hem Saw Computer Stack Board All of these had ![]() All of the mosfet that are taken out by bad caps ![]() Last edited by sam_sam_sam; 02-05-2021 at 09:13 PM.. |
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