Bush BPDP42HD2 Ysus kills Xsus

[satinser]

Re: Bush BPDP42HD2 Ysus kills Xsus

Well done and thanks. Sorry about the board two more fets to solder again!
Am expecting my 3rd buffer board tomorrow. The last two have had shorts perhaps 3rd time lucky.

[crt man]

Re: Bush BPDP42HD2 Ysus kills Xsus

Well done and thanks. Sorry about the board two more fets to solder again!
Am expecting my 3rd buffer board tomorrow. The last two have had shorts perhaps 3rd time lucky.

I got to the stage, where I started checking the buffer for shorts,
before putting it in, as so many were arriving faulty.

Had to go to the garage and pull out a repaired Xsus
for my test set.

Alan

[tom66]

Re: Bush BPDP42HD2 Ysus kills Xsus

It's odd, because I recall doing this same test on my B450 Samsung, and these Bush sets are basically the same. Mine didn't blow the X-main. It just continued on with no picture.

[satinser]

Re: Bush BPDP42HD2 Ysus kills Xsus

Just to keep you up to date with this repair. Received my 3rd buffer board for this tv on Saturday. Afraid it wasnt a case of third time lucky that also tested s/c on one of the ics. Will I ever be able to obtain a good buffer?

[tom66]

Re: Bush BPDP42HD2 Ysus kills Xsus

Tune in next week to find out!

I reckon the only solution will be to replace the ICs; probably 9 out of 10 boards are bad. The panel I pulled my bad board from had cracks all over it, yet only one IC was bad. It's probably a case of (say) 1 in 10 chance of an IC being bad, but there being 8 ICs on it, the chance of getting any one IC bad is very high (approx 57% in this example.)

[satinser]

Re: Bush BPDP42HD2 Ysus kills Xsus

Agree, have successfully removed an ic to aid in fault finding just got to pluck up the courage to attempt to resolder replacement.

[flocko]

Re: Bush BPDP42HD2 Ysus kills Xsus

The buffers,Ysus and Xsus that got my last Bush HD3 working came from a PS42C that i picked up with a broken screen off Ebay, i have one more 42c with broken screen in my workshop that has not been opened yet that been there for about 8 weeks,they are all over ebay for sale ,one on there now about 30min away for £20 did not sell last week and now back on again Flocko

[crt man]

Re: Bush BPDP42HD2 Ysus kills Xsus

Just to keep you up to date with this repair. Received my 3rd buffer board for this tv on Saturday. Afraid it wasnt a case of third time lucky that also tested s/c on one of the ics. Will I ever be able to obtain a good buffer?

You will in the end, Gets to you though.

Alan

[satinser]

Re: Bush BPDP42HD2 Ysus kills Xsus

Should be getting another one tomorrow so there's hope yet. Fed up of telling customer when he rings for progress report that still waiting for parts.

[satinser]

Re: Bush BPDP42HD2 Ysus kills Xsus

Just to end this thread in the correct manner. The fourth buffer I received was ok! When fitted into the tv with original Ysus board and repaired xsus TV started normally. It seems that the Ysus board isnt normally at fault in this model as previously mentioned by Crtman. I can confirm his original diagnostics with this model if it clicks once its just the ybuffer at fault. If its clicks three times as in this case its the Ybuffer and Xsus board repair( 2X RJH30E2).

[vinceroger69]

Re: Bush BPDP42HD2 Ysus kills Xsus

good to hear you managed to fix the set just read through the whole thread some good fault finding tips etc.

[crt man]

Re: Bush BPDP42HD2 Ysus kills Xsus

It seems that the Ysus board isnt normally at fault in this model as previously mentioned by Crtman. I can confirm his original diagnostics with this model if it clicks once its just the ybuffer at fault. If its clicks three times as in this case its the Ybuffer and Xsus board repair( 2X RJH30E2).

Hold that!

Some time ago, my son asked me to look at a plasma that had no picture.
Well the set duly arrived and it was one of the above.

Fault no picture relay clicking three times. "Hah I said" Y buffer and two Fets
on the Xsus Ordered parts and they duly arrived.
Soldered Fets in and replaced the Y buffer turned on to expect a picture.
nothing doing I herd a fizz and knew straight away that the Fets had shorted again.

On closer inspection I found that a Fet on the Ysus had a short on it (RJP30E2)
so I changed the board and connected up again and this time picture came on.
This is the seventh one that I have repaired and the first with the Ysus
fault.
So now and again there is going to be an odd one, that comes along just to confuse the issue

[flocko]

Re: Bush BPDP42HD2 Ysus kills Xsus

You have just been lucky I think Flocko