The A1 Board I got had all the same connection points the B1 board had. Granted i didn't switch inputs to the internal DVD and test but it did have a spot for me to plug in the cable.
Here's the board I picked up: [url]https://www.ebay.com/itm/156339499551[/url] Note the "DVD Signal" just behind the component barrels.https://The A1 Board I got had all t...39499551[/url]...
subwagon
Member
Last Activity: 09-06-2024, 08:31 PM
Joined: 12-02-2018
Location: Mi
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yes identical failed inductor, and 6 blink code, then after shorting the err pin to ground a 4 flash code. glad I saw EasyBone's photos because I only did a front board inspection and wouldn't have seen that blown up solder point for a while. Also glad I read all the way thru so I didn't end up tearing the whole set apart.
Bottom line any troubleshooting in the future will involve taking boards out ands inspecting BOTH sides. Thanks for the learning opportunity! Already applied it on a new set I was working on....Leave a comment:
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Thanks again, went the same route and picked up a used board for $42 and the set is back up and running like new....Leave a comment:
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Thanks Lotas,
It was the button control board, the power button was stuck. After disconnecting it and shorting the pins that would go to Power momentarily the set powered right on. I went back and checked my original main board, it was also good. Now I have a spare! I cleaned the button board and it's working again. Glad to have the TV back up and running. Thanks again!
Early in troubleshooting I tried to short the GND and Power button pins but still had the button board connected, thanks for pointing out that one of them could be stuck and blocking functionality of the others....Leave a comment:
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I received a replacement main board today and installed it with the same results. I suppose its possible the main board i got was also defective. any other tests that might narrow this down?...Leave a comment:
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That is Unfortunate that is cant be repaired. I see that Shopjimmy.com offers a new eeprom chip preprogrammed for it. but i have went ahead and purchased a replacement main board....Leave a comment:
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Im Not familiar enough to identify what IC is the processor But i See [ITE IT6633E-P 1311-CX0 VC0ALB] and [WINBOND W9751G6KB-25 63035V900ZY2 315HUA]. Unless its the chip under the heat sink.Leave a comment:
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Main Board RCA RE010C878LNA1-B1 {{Location U16: EEPROM: ah1313 25032bsig e50842}}Leave a comment:
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I was wondering if it would cause any damage to have the Main board plugged with the resistor still jumpering between PS-ON to 5VSB? Right now I just have the PS board running with the resistor and main board unplugged....Leave a comment:
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Thanks Lotas! I just did that and have all 12v and 5v. However there was an unused 24v pin on a different part of the board and I probed that and it only has 18v on it. Not sure if its important as it doesn't have a connector soldered to it and its not being used. I do see that 18v jump to 19.2v in unison to a faint tick I can hear from the board. - This is all being done with the mainboard disconnected....Leave a comment:
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RCA LED32B30RQD - Standby Only
Set is in standby and wont power up. In standby I get 5.02V on 5VSB and the rest of the pins are 0V. If Short PS-ON to GND with a 1K resistor I still get nothing. Anyone have history with these sets? Common issues. A quick google didn't turn up much in the way of Youtube repair tutorials. No burn marks on front or back of the power board or main board. I also don't have a remote so hoping its not just a power button issue but the lack of voltage on 12v or the other 5v pins is leading me to power board problems.... -
As far as the power board, is there any repairing it? Same issues on a set taking up my garage table. I looked up this inductor 3317-330M B234467 and didn't find anything on replacement components or anyone attempting to repair this Delta board.
I did enjoy the 7 pages of conversation and ordered a replacement power board after pealing it off and finding a similar burn mark / exploded solder point.
Delta AP-P353AM, G58, AP-P353AM A, 147471311, 00007501-00, AKA : Sony G85 Power boardLeave a comment:
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Thanks everyone for your help, recycling the set and moving on to an new project....Leave a comment:
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Is there any special way I should be checking these with a meter? in ohm mode none of the capacitors are shorted across. Removed both buffer boards from set to test. Same results with both sets of boards no shorts....Leave a comment:
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Here's what I have so far:
Ill split them into 3 sets, as this is how i have been testing them:
Set A -From shopjimmy
with this set installed Y board and buffer boards the set will turn off in a few seconds after powering up. I suspect the Y board to be damaged. First time i plugged this complete set in I saw sparks coming from the lower buffer C975 cap. Buffers raked no shorts found.
Set B - Purchased as spare parts from Ebay. Y board and buffer boards.
TV Set powers on and stays on but no picture and no 18v, get ~3.7 V instead, the rest of...Leave a comment:
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Raked both sets of buffer boards and found no shorted pins....Leave a comment:
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Went back to the first buffer boards and Y-SUS, tested all voltages came back with.
VS - 54V (expected 55V)
VA - 204.5~204.7 (expected 205V)
5V - 5.1V
18v - 3.4V
So it looks like im not getting my 18V. I isolated the Y-Sus board and still only see 3.4V at the Z-Sus board's 18V pin.
Swapped the Z-Sus board with another Zboard from shop Jummy and still get all the same voltage measurements.
Am I correct to assume that the 18v is produced at the Z board and passed on to the Y board?...Leave a comment:
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Tried a different set of buffer boards and got sparks on the lower buffer board C975. These boards came from shopjimmy and were supposed to be tested good.
Any suggestions, thanks in advance.Leave a comment:
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what pins do i need to short out to start the test pattern test ?...Leave a comment:
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Dug this set up again to have a second look, this time I picked up a complete board set from shopjimmy and installed it. The set powers on then immediately powers off. If i disconnect the Y-sus boards P132 power cable the set will come on and stay on, and i can hear my input device. But no picture
Edit: Grabbed up a complete Y-SUS and buffer boards from the spare parts box and the set powers on / stays on with these new Y-Sus and buffer boards installed/ connected, But still no picture.
End result tv poweres on, screen stays black and no longer turns grey briefly. Set...Last edited by subwagon; 12-17-2023, 03:28 PM.Leave a comment:
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