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Equipment Repairs => CRT TV forum => Topic started by: Turnip on August 01, 2009,09:07:00

Title: Philips L01.1 chassis
Post by: Turnip on August 01, 2009,09:07:00

Hi folks,

   Over the past year have had several of these where they cut to standby after seconds, minutes or even an hour. LOP not damaged and C2455 replaced.  Tried all suggestions found here and elsewhere and suspect problem might be with the UOC.

   Anyone had the problem ? Chris.

Title: Re: Philips L01.1 chassis
Post by: sparky on August 01, 2009,10:16:35

hello
I think this is the model with the relay fault
if you check i think you will find its 6volt wkd
not normal 12v wkd
hope it helps

sparky

Title: Re: Philips L01.1 chassis
Post by: devroy on August 02, 2009,01:24:21

this proablem occure for many reason.
1:have to adjust g2 voltage properly.normaly 21 inch tv it should be290 volts with a standerd
digital meter.
2:chake pin no 69 of uoc for protectin it should not be below 3.2 volt.
3:also chake pin no 80 of uoc for key protiction.also in no 57 and 54 for 1k and bcl .57 pin voltage
6.8 and 54 2.7-3.4above it set will be in protection.
3:riplace pair of driver transistor bc327 and 337 .with orijinal type.
4:chake 5 v at tr 7406 collector if not its eht over current.
5:riplace v gurd pair transistor bc857.
thats all happy servicing.

Title: Re: Philips L01.1 chassis
Post by: Turnip on August 02, 2009,05:20:55

Hello, and thanks to Sparky and Devroy,

    Gives me plenty to go at - would be nice to mend one - Chris.

Title: Re: Philips L01.1 chassis
Post by: veromade on August 08, 2009,22:17:59

Thanks for helping me so much.