Author Topic: lg 50PS3000  (Read 290 times)

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t1412

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lg 50PS3000
« on: January 26, 2019,11:05:09 »
Hi fella's, has anyone got service manual for the following tv lg-50PS3000, thanks for your time

shaun   

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lg 50PS3000
« on: January 26, 2019,11:05:09 »

jordan

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Greeting from Slovenia
Jordan Čebron

t1412

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Re: lg 50PS3000
« Reply #2 on: January 26, 2019,17:58:39 »
top man jordon

shaun :051bye:

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Re: lg 50PS3000
« Reply #2 on: January 26, 2019,17:58:39 »

downunder

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Re: lg 50PS3000
« Reply #3 on: January 26, 2019,18:51:45 »

Hi Shaun, I have added service manual to quuq service manuals.                              Bruce

t1412

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Re: lg 50PS3000
« Reply #4 on: January 27, 2019,04:50:32 »
thanks bruse, will report back what i find and if i fix it, thanks again
 

shaun

t1412

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Re: lg 50PS3000
« Reply #5 on: February 08, 2019,17:12:04 »
hi fella's this lg-50ps3000 has sound no picture fault , i do have vs /va voltages, if i warm up control or y sus boards the picture comes on, i have replaced the  control board but still the same fault, any info would be great thanks

regards
shaun   

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Re: lg 50PS3000
« Reply #5 on: February 08, 2019,17:12:04 »

t1412

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Re: lg 50PS3000
« Reply #6 on: February 08, 2019,17:13:10 »
 hi fella's this lg-50ps3000 has sound no picture fault , i do have vs /va voltages, if i warm up control or y sus boards the picture comes on, i have replaced the  control board but still the same fault, any info would be great thanks

regards
shaun   

downunder

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Re: lg 50PS3000
« Reply #7 on: February 09, 2019,01:58:33 »

Hi Shaun, might pay to check a few components on the Z-Sus. See attachment.

What's the LED on the control board doing?

Don't forget the pattern generator on the control board.                                Bruce

t1412

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Re: lg 50PS3000
« Reply #8 on: February 09, 2019,07:12:09 »
Hi bruse, the tv comes on blue led, it does have sound, i have resoldered poor connections on the ysus and z sus, If i warm control board and ysus board up, turn off and on again the the osd appears but as soon i turn the tv off then on again the tv has no picture thanks

downunder

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Re: lg 50PS3000
« Reply #9 on: February 10, 2019,01:41:52 »

How about cooking the main board - you might be on a bum steer. It wont hurt it and would eliminate one possibility.

See repair guide attached - it's for a different model but same principles apply.


downunder

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Re: lg 50PS3000
« Reply #10 on: February 10, 2019,22:36:41 »

Hey Shaun,

Does this set have a sub-power board under the main power supply, prominent because its populated by 6 biggish 3300uF 10V electros? If so, check C231 to C235 (all 3300uf 10V) and C205 (1000uF 25V), notorious for causing start-up errors.

Bruce

t1412

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Re: lg 50PS3000
« Reply #11 on: February 11, 2019,17:32:41 »
hi bruse no, thanks for the other info .

shaun
 

 

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