Thread: Sony TV-770 dim CRT.Sound OK.
View Single Post
  #3  
Old 08-04-2020, 03:33 PM
Electronic M's Avatar
Electronic M Electronic M is offline
M is for Memory
  
Join Date: Jan 2011
Location: Pewaukee/Delafield Wi
Posts: 15,443
Quote:
Originally Posted by centralradio View Post
Hi to all Videokarma.

I have Sony TV-770 here which has a dim CRT"Low brightness" .Sound OK .I'm questioning if the CRT could be bad.Hard to see if filament is lit....Also notice the pix cathode voltage is around 25 volts at full brightness which supposed too be 37 volts..B+ 12 volts is good...

Photo of set and Schema available at:

https://www.radiomuseum.org/r/sony_t...er_tv_770.html

Has anybody worked on this kind of set....

Thanks in advance.
Some of us aren't members of radio museeum and can't read their schematics....IIRC they charge money or want you to scan documents to get access and I don't want to deal with that.
__________________
Tom C.

Zenith: The quality stays in EVEN after the name falls off!
What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4
Reply With Quote