Home |
Search |
Today's Posts |
![]() |
|
Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
![]() |
|||
|
|||
![]()
I have 7 year old 5 inch GE Color Tv set.Model #05GP008. When I turn
it on in the a.m. , the picture is blurry and un-viewable. However, after approx 20 minutes the picture improves and is viewable. Any suggestions on what I might do to return to normal operation? best, Aaron |
#2
![]() |
|||
|
|||
![]() |
#3
![]() |
|||
|
|||
![]() "Tom MacIntyre" ha scritto nel messaggio ... It sounds like a capacitor issue, but...that being said, the CRT is also a capacitor of sorts. That is at least a possibility, and the FBT as well could cause this problem. Nah, I think that's a failing electrolytic that works only when hot :-) I suggest to open the little tv and flow hot air onto the board : if the TV works immediately, it's a failing capacitors. Because in a too small tv there are circa 10-15 caps I suggest to change all electrolytic in the built-in power supply and deflection circuit. Try also failing electrolytics in the color "jungle" circuitry, and try also the tunner ! My approach to this would probably be to set the alarm clock 20 minutes early. :-) Fun ! But this can damage the TV ! I. |
#4
![]() |
|||
|
|||
![]()
I had a GE 5" TV with a similar problem. I took it to a repair place who
fixed it but the problem came back a week or two later, and then a 2nd attempt didn't fix it permanently either, so they gave up and refunded my money. J. |
#5
![]() |
|||
|
|||
![]()
On Sat, 02 Jul 2005 15:52:56 GMT, "Inty"
wrote: "Tom MacIntyre" ha scritto nel messaggio .. . It sounds like a capacitor issue, but...that being said, the CRT is also a capacitor of sorts. That is at least a possibility, and the FBT as well could cause this problem. Nah, I think that's a failing electrolytic that works only when hot :-) I suggest to open the little tv and flow hot air onto the board : if the TV works immediately, it's a failing capacitors. Because in a too small tv there are circa 10-15 caps I suggest to change all electrolytic in the built-in power supply and deflection circuit. Try also failing electrolytics in the color "jungle" circuitry, and try also the tunner ! What electrolytic capacitor affects the focus, though? I'll admit it's been awhile since I've been inside a TV, however... :-) Tom My approach to this would probably be to set the alarm clock 20 minutes early. :-) Fun ! But this can damage the TV ! I. |
#6
![]() |
|||
|
|||
![]() Tom MacIntyre wrote: On Sat, 02 Jul 2005 15:52:56 GMT, "Inty" wrote: "Tom MacIntyre" ha scritto nel messaggio . .. It sounds like a capacitor issue, but...that being said, the CRT is also a capacitor of sorts. That is at least a possibility, and the FBT as well could cause this problem. Nah, I think that's a failing electrolytic that works only when hot :-) I suggest to open the little tv and flow hot air onto the board : if the TV works immediately, it's a failing capacitors. Because in a too small tv there are circa 10-15 caps I suggest to change all electrolytic in the built-in power supply and deflection circuit. Try also failing electrolytics in the color "jungle" circuitry, and try also the tunner ! What electrolytic capacitor affects the focus, though? I'll admit it's been awhile since I've been inside a TV, however... :-) Tom Hi... I wonder if it's possible that the op blurry description wasn't referring to what we (using my 50 years ago terms) didn't mean a 'gassy' picture tube? In today's terminology I guess you younger fellers would say low cathode emission. Perhaps we should ask him if he saw bleeding, and/or beamed out whites until it got well warmed ? Hey, anyone else here remember those plug in CRT boosters? ![]() And out in the shed I still have an old b&k crt tester/rejuvenator ![]() ![]() Take care. Ken |
#7
![]() |
|||
|
|||
![]()
On Sun, 03 Jul 2005 14:51:09 GMT, Ken Weitzel
wrote: Tom MacIntyre wrote: On Sat, 02 Jul 2005 15:52:56 GMT, "Inty" wrote: "Tom MacIntyre" ha scritto nel messaggio ... It sounds like a capacitor issue, but...that being said, the CRT is also a capacitor of sorts. That is at least a possibility, and the FBT as well could cause this problem. Nah, I think that's a failing electrolytic that works only when hot :-) I suggest to open the little tv and flow hot air onto the board : if the TV works immediately, it's a failing capacitors. Because in a too small tv there are circa 10-15 caps I suggest to change all electrolytic in the built-in power supply and deflection circuit. Try also failing electrolytics in the color "jungle" circuitry, and try also the tunner ! What electrolytic capacitor affects the focus, though? I'll admit it's been awhile since I've been inside a TV, however... :-) Tom Hi... I wonder if it's possible that the op blurry description wasn't referring to what we (using my 50 years ago terms) didn't mean a 'gassy' picture tube? In today's terminology I guess you younger fellers would say low cathode emission. Perhaps we should ask him if he saw bleeding, and/or beamed out whites until it got well warmed ? Right...an electrolytic capacitor could definitely be the cause of that. Hey, anyone else here remember those plug in CRT boosters? ![]() I do, and I "rolled my own" on numerous occasions as well. :-) And out in the shed I still have an old b&k crt tester/rejuvenator ![]() ![]() I mainly used a Sencore, forget the model, CR-70, maybe. It's about 8 or 9 years old now. Tom Take care. Ken |
#8
![]() |
|||
|
|||
![]() Nah, I think that's a failing electrolytic that works only when hot :-) I suggest to open the little tv and flow hot air onto the board : if the TV works immediately, it's a failing capacitors. Because in a too small tv there are circa 10-15 caps I suggest to change all electrolytic in the built-in power supply and deflection circuit. Try also failing electrolytics in the color "jungle" circuitry, and try also the tunner ! What electrolytic capacitor affects the focus, though? I'll admit it's been awhile since I've been inside a TV, however... :-) I suppose it could be one that affects the HV regulation. |
#9
![]() |
|||
|
|||
![]()
Hi Ken: The appearance of the screen when first turned on is more like
a kaleidescopy without any defined image. I don't know whether to describe this as "bleeding" or "burned out whites". best, Aaron |
#10
![]() |
|||
|
|||
![]() |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
Marantz sr-63 problem | Electronics Repair | |||
Powermatic 64A Alignment Problem | Woodworking | |||
CAD help - fit as many of peice 1 inside peice 2 | Woodworking | |||
Icemaker problem | Home Repair | |||
Problem with retrace lines on EIZO F55S... | Electronics Repair |