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Equipment Repairs => LCD TV forum => Topic started by: Geoff S on September 15, 2011,07:47:09

Title: Bush LCD40883F
Post by: Geoff S on September 15, 2011,07:47:09

 :sign0085:

This Tv is not powering up but the standby light flashes rapidly. The PSU is 17PW26-4. I've done the usual mod incl reg replacement but still the same problem.

Ideas? Anyone?

Cheers
Geoff

Update: D893 s/c. Replaced, still the same. Hmmm

Title: Re: Bush LCD40883F
Post by: t1412 on September 15, 2011,11:49:38

ok hifiguy have you checked these parts C801,C804,C817,C892,andIC 831 hope it helps

regards
shaun  

Title: Re: Bush LCD40883F
Post by: Geoff S on September 15, 2011,12:02:11

Quote from: t1412 on September 15, 2011,11:49:38

ok mark have you checked these parts C801,C804,C817,C892,andIC 831 hope it helps

regards
shaun 

Hey Shaun. Yes I've changed all the capacitors you mention plus ic829. I'm not seeing ic831 but I see ic830 near transformer. Could this be the ic you mentioned?
Thanks
Geoff

Title: Re: Bush LCD40883F
Post by: Geoff S on September 19, 2011,11:44:03

For anyone interested for future reference. There's a 0 ohm smd that feeds the resistor that goes o/c.

Set up and running. :13:
Geoff

Title: Re: Bush LCD40883F
Post by: t1412 on September 20, 2011,06:07:10

ok geoff have you got a reference for that smd that went open ciruit thanks

regards
shaun :sign0098:

Title: Re: Bush LCD40883F
Post by: Geoff S on September 20, 2011,07:37:09

Quote from: t1412 on September 20, 2011,06:07:10

ok geoff have you got a reference for that smd that went open ciruit thanks

regards
shaun :sign0098:

Hey Shaun
On the diagram it shows two 2k2's feeding but this board had just one at R1036. 0 ohm
Hope that helps

Geoff

Title: Re: Bush LCD40883F
Post by: t1412 on September 20, 2011,08:46:46

thanks. geoff i'll have a look.

shaun :sign0098: