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Search: Posts Made By: thuss
Forum: Troubleshooting TVs and Video Sources 06-24-2019, 09:32 AM
Replies: 11
Views: 265
Posted By thuss
Re: 60PB660v Lg plasma tv- sound but no picture

Just out of curiosity if the igbts were healthy and out of circuit what readings should I get say on resistance or on the diode setting? Thanks
Forum: Troubleshooting TVs and Video Sources 06-24-2019, 07:20 AM
Replies: 19
Views: 623
Posted By thuss
Re: LG 60PB660V Plasma tv Help Please

sorry no- still working through it.
Forum: Troubleshooting TVs and Video Sources 06-23-2019, 04:48 PM
Replies: 11
Views: 265
Posted By thuss
Re: 60PB660v Lg plasma tv- sound but no picture

Thanks for the links , I've checked the buffers caps they are ok. All the mosfets diodes and resistors are fine.

I just cant find the fault.


One last thing I maybe testing incorrectly are...
Forum: Troubleshooting TVs and Video Sources 06-23-2019, 10:07 AM
Replies: 11
Views: 265
Posted By thuss
Re: 60PB660v Lg plasma tv- sound but no picture

I replaced the logic board but still no picture.

there's still no green led light flashing on the new logic board so I assume I've been given a dud board.
Forum: Troubleshooting TVs and Video Sources 06-15-2019, 07:13 PM
Replies: 4
Views: 183
Posted By thuss
Re: LG 60PA6500 (Plasma) no picture, with sound

Bad habit of mine I meant logic board
Forum: Troubleshooting TVs and Video Sources 06-15-2019, 07:09 PM
Replies: 11
Views: 265
Posted By thuss
Forum: Troubleshooting TVs and Video Sources 06-15-2019, 04:17 PM
Replies: 11
Views: 265
Posted By thuss
Re: 60PB660v Lg plasma tv- sound but no picture

I will replace the tcon board and keep you updated- one last question does the ysus feed any voltages to the tcon?
Forum: Troubleshooting TVs and Video Sources 06-14-2019, 06:24 AM
Replies: 11
Views: 265
Posted By thuss
Re: 60PB660v Lg plasma tv- sound but no picture

thanks for the replies. One thing I forgot to mention is that the ysus is not generating the 18v supply to zsus.
But I checked the ic201 and the diode is not shorted . Yes there is voltage going to...
Forum: Troubleshooting TVs and Video Sources 06-13-2019, 04:20 PM
Replies: 4
Views: 183
Posted By thuss
Re: LG 60PA6500 (Plasma) no picture, with sound

Im not an expert but I think you have blown the tcon board.

But have a look at this it may help


https://www.youtube.com/watch?v=mZh9Lymglrs
Forum: Troubleshooting TVs and Video Sources 06-13-2019, 04:12 PM
Replies: 11
Views: 265
Posted By thuss
60PB660v Lg plasma tv- sound but no picture

Hi I could do with some help on this on.


The tv turns on with sound but no picture/screen does not flash just blank.

All the voltages are there i.e vs 205 va 55.

I have checked the buffers...
Forum: Troubleshooting TVs and Video Sources 06-09-2019, 05:57 PM
Replies: 19
Views: 623
Posted By thuss
Re: LG 60PB660V Plasma tv Help Please

Hi sorry about hijacking this thread, I got the same problem as the op but on the ysus board I get 0 voltage on the VY. on the Z sus the vzb voltage is 73.
( It doesnt have the resistors VSC).
...
Forum: Troubleshooting TVs and Video Sources 05-27-2019, 07:42 PM
Replies: 20
Views: 1,428
Posted By thuss
Re: Panasonic TX-48CX400B low LED volts

Hi Finntricky

Did you find the fault on the 48cx400b?
Forum: Troubleshooting TVs and Video Sources 05-13-2019, 08:09 AM
Replies: 31
Views: 835
Posted By thuss
Re: Panasonic led tv 55ds500

Sorry about the very late late late response- It was 8 leds gone one on in each strip on the left hand side.
Forum: Troubleshooting TVs and Video Sources 12-13-2018, 06:51 PM
Replies: 31
Views: 835
Posted By thuss
Re: Panasonic led tv 55ds500

voltage was fluctuating from 20 to 25v

But I may have read it wrong the service manual clearly states 40v to the boost converter circuit - I'm not getting that 40v?
(i will double check the...
Forum: Troubleshooting TVs and Video Sources 12-12-2018, 12:22 PM
Replies: 31
Views: 835
Posted By thuss
Re: Panasonic led tv 55ds500

I've put the led backlight tester on the connections and they seem to be working.

One thing I have noticed/misunderstood between the service manual is that depending on the screen the voltages...
Forum: Troubleshooting TVs and Video Sources 12-07-2018, 10:07 PM
Replies: 31
Views: 835
Posted By thuss
Re: Panasonic led tv 55ds500

I will do- I found the service manual for 55ds500

Thanks for your help had to order another backlight tester (mines gone walkies)


I wll do as it says on page 53 of the panasonic 2016 doc you...
Forum: Troubleshooting TVs and Video Sources 12-06-2018, 02:52 PM
Replies: 31
Views: 835
Posted By thuss
Re: Panasonic led tv 55ds500

I hope these help
Forum: Troubleshooting TVs and Video Sources 12-06-2018, 02:27 PM
Replies: 31
Views: 835
Posted By thuss
Re: Panasonic led tv 55ds500

The small one is rated at 44v. Yes I did put black probe chasis.
Still waiting for my led tester............

I will put new photos on later today.
Forum: Troubleshooting TVs and Video Sources 12-05-2018, 07:18 PM
Replies: 31
Views: 835
Posted By thuss
Re: Panasonic led tv 55ds500

Biggest cap is rated at 63v.

One thing I forgot to mention the connection (right hand side of led driver board) the last black wire disconnected is reading -0.1v whilst all other black wires 3.4v...
Forum: Troubleshooting TVs and Video Sources 12-05-2018, 01:53 PM
Replies: 31
Views: 835
Posted By thuss
Re: Panasonic led tv 55ds500

Still waiting to get my led tester back - Does anyone know what the voltage values should be for the led driver board?

Just out of curiosity I unplugged the leds from the driver board and I got...
Forum: Troubleshooting TVs and Video Sources 12-03-2018, 10:12 PM
Replies: 31
Views: 835
Posted By thuss
Re: Panasonic led tv 55ds500

If I understood correctly without taking the screen out.

I just pair the wires from the back of the to the led tester.

Based upon the voltages do you think the led driver maybe faulty?

I...
Forum: Troubleshooting TVs and Video Sources 12-03-2018, 09:41 PM
Replies: 31
Views: 835
Posted By thuss
Re: Panasonic led tv 55ds500

Yes the model number TX-55ds500b. I did think the 3.4 were way to low.
Basically I think its time to remove the screen to access the led- something I hate doing on the 55 inch screens I just find...
Forum: Troubleshooting TVs and Video Sources 12-03-2018, 07:43 PM
Replies: 31
Views: 835
Posted By thuss
Re: Panasonic led tv 55ds500

I hope the following helps if I start with the voltages on the psu left hand side of the plug going to the right

wire 1- 24.65 wire11- 24.65
wire 2- 24.65 wire 12-...
Forum: Troubleshooting TVs and Video Sources 12-01-2018, 08:27 PM
Replies: 31
Views: 835
Posted By thuss
Re: Panasonic led tv 55ds500

I cant see any voltage tables written on any board.

But going back to the led driver board the inductor (sorry about the blurry photo)

In bleep mode

Leg 1 to leg 2 no bleeps 486 ohm
leg 3...
Forum: Troubleshooting TVs and Video Sources 12-01-2018, 07:22 PM
Replies: 31
Views: 835
Posted By thuss
Re: Panasonic led tv 55ds500

ignore previous post - completely misread Budm's post.
Showing results 1 to 25 of 163

 
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