(859) 609-2887
SERVICE/REPAIR OF TELEVISION AND ELECTRONIC...
Answer
TV screen is just went black, no sound. The lighted buttons on the front are 2 green and 1 red,they...
(More)
Problem for Standard Televisions
Generic problem for all Standard Televisions
RCA CRT TV thin white horizontal lines
I suspect this is a standard malady for CRTs but here are the specifics of the set:
RCA 31" Home Theatre F31700GG chassis #CTC169JS5.
The thin white horizontal lines (slightly sloped) are across the entire picture and are spaced about 1 inch apart with some compression of spacing towards the top of the screen and expansion of spacing as towards the bottom of the screen (I suspect vertical scan related). The desired image is barely visible with a pinkish-grey cast. When I adjust the Screen potentiometer the TV shuts down.
I can replicate the lines on two other sets, a similar year model GE 27" and a really old RCA 19", by adjusting the Screen potentiometers.
I have all the schematics for the 31", a 275 MHz oscilloscope with built-in time interval multimeter, and two analog VOMs. Unfortunately I don't have a high voltage probe, power supply, or frequency generator.
Thank you,
Floydage
RCA 31" Home Theatre F31700GG chassis #CTC169JS5.
The thin white horizontal lines (slightly sloped) are across the entire picture and are spaced about 1 inch apart with some compression of spacing towards the top of the screen and expansion of spacing as towards the bottom of the screen (I suspect vertical scan related). The desired image is barely visible with a pinkish-grey cast. When I adjust the Screen potentiometer the TV shuts down.
I can replicate the lines on two other sets, a similar year model GE 27" and a really old RCA 19", by adjusting the Screen potentiometers.
I have all the schematics for the 31", a 275 MHz oscilloscope with built-in time interval multimeter, and two analog VOMs. Unfortunately I don't have a high voltage probe, power supply, or frequency generator.
Thank you,
Floydage
Same Problem
May 18, 2008
- My 32 inch Gemstar TV was working all fine till I disconnected the cable and reconnected back. Thogh all the connections are exactly same I see white thin horizontal lines. This has nothing to do with my VCR, DVD player or my cable connection since the TV gets disolays these lines even when it is disconnected from all these.I have no clue what happened...- sgunupuru
Best Solution
posted on Apr 24, 2008
Look for bad capacitors in the vertical deflection amp, and in the pin amp sections. This is common on most of these types of TV sets.
The caps tend to go high in ESR with age. It is best to use an ESR meter to find the bad caps. It will be a lot faster than workign out waveforms with a scope.
Wikipedia explanation about capacitor ESR:
http://en.wikipedia.org/wiki/Equivalent_series_resistance
Jerry G.
The caps tend to go high in ESR with age. It is best to use an ESR meter to find the bad caps. It will be a lot faster than workign out waveforms with a scope.
Wikipedia explanation about capacitor ESR:
http://en.wikipedia.org/wiki/Equivalent_series_resistance
Jerry G.
Yes
No
This Problem Also Relates To:
GE 19GT317 19" TV
GE 27GT271 TV
GE 13GP341 13" TV
GE 19GT243 19" TV
GE 19GT270 19" TV
Panasonic CT-32HXC14 32" TV
Panasonic CT-27SL14 27" TV
Popular Solutions for Standard Televisions
Questions and Unsolved Problems for Standard Televisions
Answer
my rca is showing dar colors and when i try to brighten i acesss the menu its black so i cant change...
(More)
Answer
changes channels by itself my ge television suddenly starts clicking downward, changing channels...
(More)
Answer
The color on my tv starts blinking and goes grainy.
Answer
need coaxel antenna plug for my sansui , i bought this sansui svt 27pc3a nicam tv and it has a...
(More)
Ask our Experts
Top Standard... Experts
