Sharp 9" Color TV Model 9H102 AC/DC TV Clicks ON But No tube (snow) or sound

[Electronic M]

Originally Posted by Jc339

Thanks Electronic M for joining the conversation. I don't think we had any lightning since ours is a low lightning area, hardly any at all...

But our power company does have occasional outages and then they turn on the power and I wondered if that what was caused the problem. It was so many years ago that I truly don't recall but I think over the years we may have had a few smaller crt tv's go out after a power outage.

I kept this little tv since I really liked the dual voltage 12 v and 120v.

Not to change the subject but we had a small tv with a vcr built in the bottom and I got rid of it about a year or more ago because it was eating tapes, before I discovered there were forums like this that might be able to help get it working.

I don't have a 6 v battery and it would be hard for me to put it across the heater pins because I don't know where they are since this is the first tv I've ever tried to fix.

If you have any other suggestions I'd appreciate it.

In the back of my mind there is that swollen capacitor up in post 11 and for some reason I wonder if that's the cause of my problems...

Three ways to locate the heater pins of a CRT:
1.) try the 2 pins on either side of the key on the plastic center pin. those are the heater pins on most CRTs with a center plastic index pin.
2.) look at the neck PCB for solder pads under the socket with H next to them...Or on vacuum tube era sets without a neck board the brown and or black wires.
3.) google the CRT part number with the word "datasheet" included in the search string. The datasheet will give you the pinout...We can help you read the data sheet if you can't make sense of it.

[Jc339]

Thanks SpaceAge,

The capacitor in post #11 was the only one that I could see so far visually that looked like it had a slight bulge on the top where the X is. I'll try to take the unit apart and get to that capacitor and get a new one. I'll let you know.

[Jc339]

Electronic M wrote:

Three ways to locate the heater pins of a CRT:
1.) try the 2 pins on either side of the key on the plastic center pin. those are the heater pins on most CRTs with a center plastic index pin.
2.) look at the neck PCB for solder pads under the socket with H next to them...Or on vacuum tube era sets without a neck board the brown and or black wires.
3.) google the CRT part number with the word "datasheet" included in the search string. The datasheet will give you the pinout...We can help you read the data sheet if you can't make sense of it.

I'll investigate your instructions and take photos if possible. This analysis of the CRT may prove to be above my current ability. I'll let you know what I can do. Thanks.

[Jc339]

Sorry, haven't had a chance to try and remove the pcb with the suspected bad capacitor in the post #8. It's on the bottom and it looks like several other things may need to be removed or disconnected to get to it...I'll update...Thanks...