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Equipment Repairs => LCD TV forum => Topic started by: Geoff S on June 25, 2011,11:16:48

Title: 17pw20.1 repaired at last
Post by: Geoff S on June 25, 2011,11:16:48

Being new here I wanted to post something useful up as soon as possible.
I've been fighting with a Technika lcd32-207 for too long. These 17PW's can be annoying to say the least.

Symptom on this one was the blue standby light dimmed and then blinked out and returned to standby. After changing all the usual suspects blanket soldering and pulling more than enough hair out it all came down to C818- 4700uf 6.3v.

Hope this of help to others here.

Title: Re: 17pw20.1 repaired at last
Post by: Turnip on June 25, 2011,11:54:22

Hi hifiguy,

Well found - Back threads have both parellel connected 4700/6.3 listed as a common fault - helps to keep the mind focussed though.

Had a AK19 yesterday with a shot chopper and forgot to check those two series source-to-deck BA157s for S/C so blew amother chopper B4 the thought struck - getting old - Chris.

Title: Re: 17pw20.1 repaired at last
Post by: jimca007 on June 30, 2011,17:11:53

that gettin olds a real pain took the back off a set the other day and couldn't find the valve cap to draw a spark !

Title: Re: 17pw20.1 repaired at last
Post by: Turnip on July 01, 2011,12:57:29

Hi Jimca007,

Reminds me of when I started at a certain rental company with my new left-handed soldering iron, the chief got me to try change the EF80 under the metal cone tube of an English Electric whilst it was switched on.

They were wicked in those days - apprentice life was cheap - Chris.

Title: Re: 17pw20.1 repaired at last
Post by: jimca007 on July 01, 2011,15:53:01

I hear you ! an old git I worked with as a hairy ars'd boy with Granada took great delight in demonstrating the practical application of a wind up megger !

Title: Re: 17pw20.1 repaired at last
Post by: Turnip on July 02, 2011,12:24:41

Hi Jimca007,

You're talking "Evershed and Vignoles" - whatever happened to them - guess they were boys when we were boys

- well, some of us - croak - Chris.