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Forum: Troubleshooting TVs and Video Sources 11-20-2011, 04:46 PM
Replies: 21
Views: 26,906
Posted By sagie
Re: Philips LCD TV with Sound, No Picture (model 42PFL5322/10)

Yes, I now see it... But it was really the CCFL test that helped me localize the faulty area.



No, thank you! What I am wondering about now is what made the original fuse blow. Usually a fuse...
Forum: Troubleshooting TVs and Video Sources 11-20-2011, 04:29 PM
Replies: 21
Views: 26,906
Posted By sagie
Re: Philips LCD TV with Sound, No Picture (model 42PFL5322/10)

Well, looks like I fixed it. It wasn't the CCFLs, but the ingenuously simple CCFL test helped me find the problem. From the CCFL test I detected what appeared to be two malfunctioning CCFLs. The two...
Forum: Troubleshooting TVs and Video Sources 11-18-2011, 07:15 PM
Replies: 21
Views: 26,906
Posted By sagie
Re: Philips LCD TV with Sound, No Picture (model 42PFL5322/10)

Thanks again for your help, retiredcaps.



I might save you some searching by telling you the service manual which is widely available on the Internet for this chassis (LC7.1E LA) has absolutely...
Forum: Troubleshooting TVs and Video Sources 11-18-2011, 03:37 PM
Replies: 21
Views: 26,906
Posted By sagie
Re: Philips LCD TV with Sound, No Picture (model 42PFL5322/10)

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...
Forum: Troubleshooting TVs and Video Sources 11-17-2011, 05:37 AM
Replies: 21
Views: 26,906
Posted By sagie
Re: Philips LCD TV with Sound, No Picture (model 42PFL5322/10)

OK, the transformers are all 4004Q (http://lcdparts.net/TransformerDetail3D.aspx?ProductID=2734)s. I tested all 40 secondary winding pairs, they all measure in the range of 1310-1360 Ohm. Went ahead...
Forum: Troubleshooting TVs and Video Sources 11-16-2011, 06:40 PM
Replies: 21
Views: 26,906
Posted By sagie
Re: Philips LCD TV with Sound, No Picture (model 42PFL5322/10)

I tried to look in various lighting conditions, but I'll give the transformers a shot. Will update with my results.
Thanks!
Forum: Troubleshooting TVs and Video Sources 11-16-2011, 06:37 PM
Replies: 21
Views: 26,906
Posted By sagie
Re: Philips LCD TV with Sound, No Picture (model 42PFL5322/10)

OK, I've just read in the article you've linked I can measure it in-circuit.

Only one question remains -



Thanks again!
Forum: Troubleshooting TVs and Video Sources 11-16-2011, 06:30 PM
Replies: 21
Views: 26,906
Posted By sagie
Re: Philips LCD TV with Sound, No Picture (model 42PFL5322/10)

Many thanks for the prompt response, retiredcaps!



Do I have to take the transformers out of the circuit to measure the resistance, or may I measure it in-circuit?




I've read some...
Forum: Troubleshooting TVs and Video Sources 11-16-2011, 04:52 PM
Replies: 21
Views: 26,906
Posted By sagie
Re: Philips LCD TV with Sound, No Picture (model 42PFL5322/10)

I forgot to write that as the TV is turned on, the red standby LED changes to a blue LED, which remains on as long as the TV is on (regardless whether the display works or not).
When the TV is...
Forum: Troubleshooting TVs and Video Sources 11-16-2011, 04:37 PM
Replies: 21
Views: 26,906
Posted By sagie
Philips LCD TV with Sound, No Picture (model 42PFL5322/10)

Hello everybody,

First of all, many thanks for all of the good people that has been contributing here.
I got here about a year ago via Google search and was able to fix a malfunctioning LCD...
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