Yes, hopefully. I'm also currently looking at building an ESR meter, which should assist in my task. I've been reading some of the threads on here about them. If I had the money I'd just buy one, but needs must & all that.
Quotidian
New Member
Last Activity: 05-21-2021, 08:23 AM
Joined: 09-12-2010
Location: Lancashire
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Re: Very poorly Yusmart 2291p-p
Yes, hopefully. I'm also currently looking at building an ESR meter, which should assist in my task. I've been reading some of the threads on here about them. If I had the money I'd just buy one, but needs must & all that.
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Re: Very poorly Yusmart 2291p-p
Hello,
I've managed to acquire another logic board, shall have it tomorrow hopefully. Will keep you updated. Cheers, Lee.Leave a comment:
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Re: Very poorly Yusmart 2291p-p
Hello again, thanks for the welcome.
I've been measuring and here are some findings :
I104 has 3.29 and 4.66V from pins 2 & 3 respectively.
C805 ( the big one) has +161-3V on the anode & -154-6V at the cathode and also the end cap.
My P802 (9 pin connector) voltages are pretty much the same as fusionmax in the other thread, however mine are 4.99V compared to his 5.15V on the same pins (2,5 & 6). I get pin 7 reading 1.62V & pin 8 reads 2.83V all other pins read zero (1,3,4...Leave a comment:
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Re: Very poorly Yusmart 2291p-p
Hello all, board pictures now uploaded (had to wait for daylight) I've been looking at your badcap list, these boards contain both Hermei & Lelon caps, but they aren't bulging or leaking. Cheers, Lee....Leave a comment:
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Re: Very poorly Yusmart 2291p-p
Sorry, was going to do that Shall crack on with it now.
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Very poorly Yusmart 2291p-p
Hello everyone, new forum user so please be gentle. The problem is my faulty monitor. Upon turning on, a grey screen fades to black with red, green and blue vertical pinstripes. Some of the electrolytics on the main board did make me wonder, but I haven't changed or tested them yet. Thought I'd hear from you guys first. Wondering where to begin. Cheers in advance, Lee.
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