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Old 11-18-2011, 03:37 PM   #12
sagie
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Join Date: Sep 2010
Posts: 10
Default Re: Philips LCD TV with Sound, No Picture (model 42PFL5322/10)

Quote:
Originally Posted by retiredcaps View Post
Can you actually list all 40 readings? It matters because if 39 of them measure between 1350-1360 Ohm and 1 reads 1310 Ohm, then

1360 * 0.97 = 1319 Ohm. OR 1310 * 1.03 = 1349 Ohm.

How the 3% guideline came about by PlainBill.

http://www.badcaps.net/forum/showpos...7&postcount=18

edit: We have had cases where the measurement was off by as little as 5 Ohms to cause "2 seconds to black".
OK, as I checked the resistances a second time to write them down, I got much more consolidated readouts for some reason. This time, they were all in the range of 1300-1333 Ohms, which makes the max reading still within 3% from the min reading. I wrote all of the readings in the bottom of this message.

Quote:
Originally Posted by retiredcaps View Post
Are there any caps on the inverter board? If yes, what brand and series are they?
Yes, each of the 2 boards carries 5 medium sized caps and a small cap. They all appear to be in good shape visually (at least in my eyes).

I couldn't really make a brand, but here are the markings on them:
* Medium sized - 1st type
(M)105C
7(7)
1W
* Medium sized - 2nd type
(M)105C
7(7)
3W
* Small sized - 3rd type
(M)105C
One of the boards carries 5 caps of the 1st type and 1 of the 3rd. The other board carries 3 caps of the 1st type, 2 of the 2nd and 1 of the 3rd.
I think the manufacturer simply uses the 1st and 2nd types interchangeably.

I've also attached some photos to show the one of the boards and a few of the caps.


Transformer secondary windings readouts
1st board
1.1: 1312
1.2: 1306
2.1: 1327
2.2: 1317
3.1: 1319
3.2: 1316
4.1: 1311
4.2: 1308
5.1: 1317
5.2: 1318
6.1: 1332
6.2: 1326
7.1: 1310
7.2: 1306
8.1: 1307
8.2: 1300
9.1: 1317
9.2: 1312
10.1: 1306
10.2: 1300
2nd board
1.1: 1333
1.2: 1327
2.1: 1325
2.2: 1317
3.1: 1317
3.2: 1311
4.1: 1312
4.2: 1306
5.1: 1324
5.2: 1318
6.1: 1334
6.2: 1329
7.1: 1330
7.2: 1328
8.1: 1330
8.2: 1326
9.1: 1327
9.2: 1321
10.1: 1331
10.2: 1333
Attached Images
File Type: jpg DSC_1014.jpg (262.2 KB, 87 views)
File Type: jpg DSC_1005.jpg (240.4 KB, 69 views)
File Type: jpg DSC_1007.jpg (269.2 KB, 59 views)
File Type: jpg DSC_1008.jpg (283.6 KB, 50 views)
File Type: jpg DSC_1015.jpg (272.6 KB, 60 views)
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