Re: Pioneer Elit 1120HD Power Supply issue?
How do you check VH to the floating ground? i.e. what is floating ground vs ground?
How do you check VH to the floating ground? i.e. what is floating ground vs ground?
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Re: Pioneer Elit 1120HD Power Supply issue?
the test pads on the scan board labeled GNDH. By the yellow bar printed on the scan board. there are two pads. Either works for a ground. Put your black lead there.Did I leave the soldering iron on?Comment
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Re: Pioneer Elit 1120HD Power Supply issue?
I found it. The first picture is the lower and the second pic is the upper.
Upper - voltage showed 13 then to 1.
Lower - voltage showed 14 then to 1.
I did find this which seems to say the same thing you said except the 300 to 600 ohms. https://electronicshelponline.blogsp...-board-ic.htmlAttached Filesif you find these attachements useful please consider making a small donation to the site
Last edited by Boyd1966; 01-25-2018, 01:25 PM.Comment
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Re: Pioneer Elit 1120HD Power Supply issue?
Ok, thast sounds way low. I think this should be around 200v or so.Did I leave the soldering iron on?Comment
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Re: Pioneer Elit 1120HD Power Supply issue?
Is it possible there wasn't enough time to get to 200 before it shut down?
It sounds like it might be in the Y board somewhere?Comment
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Re: Pioneer Elit 1120HD Power Supply issue?
Can you put black lead back to chassis ground and repeat this procedure?Did I leave the soldering iron on?Comment
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Did I leave the soldering iron on?Comment
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Re: Pioneer Elit 1120HD Power Supply issue?
Both upper and lower bounced around. High seemed to be 50 to 70 I think but it was quick.Comment
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Re: Pioneer Elit 1120HD Power Supply issue?
On the upper scan board, you have 3 screws connecting it to the sustain. Can you remove all 3 screws, disconnect the cable connector from the scan board as well, swing the board out of the way so its no longer touching the sustain board.
You can leave the board hanging still connected to the plasma panel.
Repower up and see if tv stays on.
This could be risky as well, because If in fact there is a short, the X can feed back to the shorted Scan IC and you will see the magic smoke.. Had this happen before but its rare.. Just had to throw it out there..Did I leave the soldering iron on?Comment
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Re: Pioneer Elit 1120HD Power Supply issue?
If you don't hear back from me in 20 min dial 911.
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Re: Pioneer Elit 1120HD Power Supply issue?
Lol ok phone in hand
Did I leave the soldering iron on?Comment
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Re: Pioneer Elit 1120HD Power Supply issue?
VH should be about 130-150V...It's same as Vsc and Vsch on LG and Samsung TVs.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Pioneer Elit 1120HD Power Supply issue?
Upper board disconnected. It didn't stay on. Went to 3 red light sequence as before.Comment
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Re: Pioneer Elit 1120HD Power Supply issue?
Ok reconnect this board, and try the same sequence with the lower.Did I leave the soldering iron on?Comment
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Re: Pioneer Elit 1120HD Power Supply issue?
Reconnected upper. Disconnected lower. TV won't stay on but now it was a 4 blinking red light sequence.Comment
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Re: Pioneer Elit 1120HD Power Supply issue?
Check VH in this condition.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Pioneer Elit 1120HD Power Supply issue?
VH on the upper board I assume?Comment
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Re: Pioneer Elit 1120HD Power Supply issue?
yesDid I leave the soldering iron on?Comment
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Re: Pioneer Elit 1120HD Power Supply issue?
It stayed at 129 where before when both and upper and lower connected, it jumped around.Comment
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