Re: Samsung LE32R88BD/ BN44-00155A
Not yet.
Before tackling any bad glue removal, I wanted to check the 2nd PSU board worked ok, else if also faulty, would have to send that back for a refund.
Now I know that this PSU works, even with any 'bad' glue (is there any other kind?), I'm going to try make repairs (replace resistor and glue removal) on both the original PSU, and also the 1st (faulty) replacement board I got.
If I can get one or both of them working again, then at least I will have spare PSU boards, so can then safely attack the...
julian.p
New Member
Last Activity: 07-22-2019, 06:25 AM
Joined: 07-17-2019
Location: East Anglia
-
Re: Samsung LE32R88BD/ BN44-00155A
Absolutely spot on, was definitely the power board - sourced another used PSU on EBay, arrived today, fitted and BINGO! we have a working TV for A low cost. May now even have a go at repairing components on old PSU as have nothing to lose. Thanks Bud.
Leave a comment:
-
Re: Samsung LE32R88BD/ BN44-00155A
OK, thanks.
I don't know enough about MOSFETS & Caps to start playing around with changing them, so from what you've said, sounds like it is still a bad PSU, so will source another used Board and try that, and hope it works, will post result.Leave a comment:
-
Re: Samsung LE32R88BD/ BN44-00155A
The blown resistor shown was on the secondhand PSU board I purchased, so do you think the RM801 was also blown on my original PSU, from the first pic I had posted, and the meter readings I gave?
But I haven't cleaned off glue, or tried replacing resistor on either PSU board, , as I'm not skilled at PCB soldering repairs, so is easier to just get another used (but hopefully working!) replacement PSU.
So are you certain it will be the PSU at fault and not the main control board?
ThanksLeave a comment:
-
Re: Samsung LE32R88BD/ BN44-00155A
Have checked my meter, resistance reading between probes at 200 ohm setting is 00.3
Removed all cable connectors from both boards.
Tested RM801 on original PSU, but get different readings at different times. After several seconds, sometimes I get a 1. reading at all settings, other times, at highest 20M setting only, reading varied between 4.5 - 4.68, then again between 12-14 (both on 20M setting), then 0.2 on 20M but gave 1.49 at 2M.
I also tested RM801 on the used replacement PSU, got a 1. on all...Leave a comment:
-
Re: Samsung LE32R88BD/ BN44-00155A
Thanks for the response.
I also had thought it was a power issue, so I did try multimeter checks on both PSU RM801s, but found it difficult to get an in-circuit reading where it has such a small (0.22ohms?) resistance value, sometimes I got no reading, sometimes differing values, although it doesn't give a continuity test bleep. I tried testing other resistors on the PSU with varying readings also. What reading should I get on RM801 if good, and if it's failed?
And as I have very limited knowledge of electronics,...Leave a comment:
-
Re: Samsung LE32R88BD/ BN44-00155A
Hi everyone, hope you can help me, and that I've posted enough information.
I'm new on here, but definitely not a member of the 'throw it away, and just buy a new one' club, and although I have very little electronics knowledge, I am a keen DIYer, and willing to learn how things work (within reason) and so will 'have a go'.
I have recently suffered a similar power on problem with my 2007 Samsung LCD TV LE32R88BDX/XEU, which is same model and PSU BN44-00155A (Rev 1.1) as this thread.
This was after coming...Leave a comment:
-
Re: New Members - please post your introductions here
Hello all.
I'm a newbie from the UK.
Not an expert on anything, but like to try and understand how stuff works, am definitely not one of the 'throw it away and buy a new one' brigade, so I like to see if I can fix something, a hands-on DIYer.
Don't have much electronic knowledge, enough to use a basic multi-meter, and can solder, but not as far as replacing components like caps on PCBs.
Reason for joining Badcaps is, I've got a 12-yr old Samsung LCD TV just stopped working,...Leave a comment:
No activity results to display
Leave a comment: