Re: TH-42PX80U & TC-P42X1 Panny Panasonic
Couldn't agree more.
I simply posted this as reference material only.
Thank you to the guys at HEGE supporting Badcaps [ HEGE ] [ HEGE DEX Chart ]
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Re: TH-42PX80U & TC-P42X1 Panny Panasonic
Don't know if this helps but:
TH-42PX80U (gph11du) = panel # MD42H11A1J
TC-P42X1 (gph12du) = panel # MD42H12A2J
According to TVservice Parts there are no replacements available for either, which I would guess would mean they are non-compatible.
[url]http://www.tvserviceparts.com/MD42H11A1J.html[/url]
[url]http://www.tvserviceparts.com/MD42H12A2J.html[/url]Re: TH-42PX80U & TC-P42X1 Panny Pana...t know if this
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Re: Samsung / Hansol BN44-00428b
So it turns out that you were right all along.
This is the wrong board for this machine.
In my earnest to try and track down an actual scheme and possible parts list, I called Samsung (J&J International). I spoke with their tech guys and they insist that there is absolutely no way that this board should have been in this model. Their only hypothesis as to the how, is that it may have been mistaken for the UN55D6400U[B]R[/B] model (which does accept it) instead of the 6400U[B]F[/B] (which does not). Basically, a clerical...
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Re: Samsung / Hansol BN44-00428b
OK, here's what I am finding :
- Unlike "B" board, the B13 is utilizing [I]Both[/I] Mosfets from TM801S
- Vamp (17v) has no Mosfet - direct feed to CN801
Working up a diagram & pictures to explain a little better.
[B]Here's the puzzling part:[/B]
- [B]No output [/B]voltage from TM801S at B13 or Vamp (all 4 = Ground )
- [B]Backfeed voltage [/B]only at all --- terminated at Diodes & Mosfets.
- Found Burn marks on terms 4, 5, 6 of TM801S ( B13 & Vamp...
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Re: Samsung / Hansol BN44-00428b
Here is what I found in/out of the TM801S.
Had to repost whole PDF annotated (see pg 3).
My DMM registered the A/C input in high voltage (HV).
I had absolutely no other output voltages from the unit - including B13.
Which is a little weird, because I register 13v at the CN801 connector & elsewhere at various jumpers.
Confused....Last edited by kenny1070; 12-28-2013, 01:10 PM.
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Re: Samsung / Hansol BN44-00428b
Won't be able to re-assemble and test that until Sat.
Working 13 + hr. days today and tomorrow.
If you could help me out with exactly where I should be testing - that would be great.
Thanks
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Re: Samsung / Hansol BN44-00428b
I saw that on shop jimmy as well.
I do know that this set has never been serviced - since the day it was brand new, so I can't explain why I have this particular board. Wish I had a better answer.
Been over this 1000 times, Can't believe I missed that whole block (wow).
I guess that would have to make this 197v as designated by the key on the top / left corner (marked).
46" - PSLF151B03A = 176v
55" - PSLF171B03A = 197v
So are you thinking...Last edited by kenny1070; 12-26-2013, 03:25 PM.
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Re: So here's one for you guys... Samsung UN55D7000
Here is where I got mine -
[url]http://www.samsungparts.com/Products/Parts_and_Accessories/PID-BN96-16622A.aspx?model=UN55D7000LF[/url]
There are 2 [I]different[/I] Led Bars - 1 left and 1 right
It appears to be on Nationwide Backorder though.
Or you can just take the part # and shop around.Re: So here's one for you guys... Sa...5D7000LF[/url]
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Re: Cap Kits?
Here is one that I have dealt with in the past -
[url]http://lcdalternatives.com/Olevia-242-S11-LCD-TV-Repair-Kit-Capacitors-Only-Not-the-Entire-Board-P2167238.aspx[/url]Re: Cap Kits?<br /> <br /> Here is...238.aspx[/url]
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Re: So here's one for you guys... Samsung UN55D7000
That depends on how comfortable you feel in opening the panel unit - very fragile.
Not an overly hard project, but does require a lot of care and patience.
But I would certainly try to confirm this - before throwing any more parts at it.
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Re: So here's one for you guys... Samsung UN55D7000
Picture 2 appears to have operating pixels in the background - behind the shadow (bar).
Is the image behind the shadow frozen - or - in motion?
Hooking it up to a dvd or some other source you can display an actual image, and would probably help define if its in motion / frozen / ghosting.
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Re: Samsung / Hansol BN44-00428b
" (from looking at the A and the B version, the component designators are not the same but using the same setup) "
That was my assessment as well, which is why I was able to use this solely as a [I]template[/I] and simply substitute the designators to match (I little extra work, but sometimes you just have to do).
------------------
" I still do not understand by the LED does not even flash on once before going into shutdown, it will have to detect that one or more of the...
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Re: Samsung / Hansol BN44-00428b
Forget Post 18, I was not even close (design or draft).
I took it apart (panel) - and what I found was:
This system uses 2 side panel led light bars - [B]Left/Right[/B]
CN801a (18 pin) operates the right side and CN801b (22 pin) the left.
Each connector is then split again - top/bottom (odd/even), each responsible for their own respective halves of the light bar.
The two bars are then connected by looping the right side (primary) [B]back through the PSU [/B] to power up the left...Last edited by kenny1070; 12-23-2013, 05:48 AM.
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Re: Samsung / Hansol BN44-00428b
Would it be possible to jumper a 5v from another location, say pin 18 or even standby from cn801 - without corrupting or damaging the whole sys. ?
That way I could verify the integrity of either the Leds (light up - forward) -or- the remainder of the circuit pathway on the board (board powers up - false positive return).
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Re: Samsung / Hansol BN44-00428b
Based on the information provided by the board, I was able to draft a basic composite of the backlight sheme ([I]very basic[/I]).
Based on that , I can extrapolate that there is a failure in strings 7 & 8.
With the 124v power source being provided at R7+ and the lack of the 5.7volts at L7- , I guess the question would be :
" Is the 5.7v signal on pin 17 (of the 22 pin conn.) a forward ? -or- return voltage ? "
I'm guessing that the answer to that will probably determine whether...
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Re: Samsung / Hansol BN44-00428b
OK, so I went back and voltage tested each of the components ( 7 per) on each of the 4 strings - [B] All Good[/B].
Each of these appear to be the Primary voltage supply for their led outputs.
I was also able to confirmed and verified them at their respective destination points by their 124v power source on pins 1, 2, 11, 12 of the 18 pin connector ( as seen in my attached wiring diagram ).
Just out of interest I decided to re-test each of the voltages at the led connectors - [B]This time with the connectors unplugged[/B]:...
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Re: Samsung / Hansol BN44-00428b
Would it be OK to test this with the Led output connectors (cn801a - cn801b) disconnected / unplugged ?
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