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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. |
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#1
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TV picture distorted
Hi all: My 15-yr old Toshiba 27" crt television has recently developed a
problem which is that approx 15 minutes after being turned on, the picture bows inward on the left and right sides. Then, after a few more minutes, the picture resolves and returns to normal and remains perfect for the remaining time the tv is on. If the symptom described above means the crt is wearing out, so be it, the set will soon be history. However, I'm wondering whether some other, replaceable part, might be going bad and causing the temporarily distorted picture. Would appreciate any suggestions re. probable cause(s) of symptom described above. Am basically novice, but handy and with soldering skills, and have done a few simple tv repairs in the past. Thanks for your replies! |
#2
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TV picture distorted
"PE" Hi all: My 15-yr old Toshiba 27" crt television has recently developed a problem which is that approx 15 minutes after being turned on, the picture bows inward on the left and right sides. Then, after a few more minutes, the picture resolves and returns to normal and remains perfect for the remaining time the tv is on. If the symptom described above means the crt is wearing out, so be it, the set will soon be history. However, I'm wondering whether some other, replaceable part, might be going bad and causing the temporarily distorted picture. Would appreciate any suggestions re. probable cause(s) of symptom described above. Am basically novice, but handy and with soldering skills, and have done a few simple tv repairs in the past. ** The symptoms suggest a cracked solder joint that is expanding as the temp rises. But you failed to mention how quickly the symptom arrives and leaves - so it is not clear if my scenario applies. ..... Phil |
#3
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TV picture distorted
"PE" wrote in message m... Hi all: My 15-yr old Toshiba 27" crt television has recently developed a problem which is that approx 15 minutes after being turned on, the picture bows inward on the left and right sides. Then, after a few more minutes, the picture resolves and returns to normal and remains perfect for the remaining time the tv is on. If the symptom described above means the crt is wearing out, so be it, the set will soon be history. However, I'm wondering whether some other, replaceable part, might be going bad and causing the temporarily distorted picture. Would appreciate any suggestions re. probable cause(s) of symptom described above. Am basically novice, but handy and with soldering skills, and have done a few simple tv repairs in the past. Thanks for your replies! horizontal coupling cap faulty yoke or flyback tranformer circuit pincushion transformer circuit or try here http://www.devileye.net/catalog/boil...r_circuit.html or http://www.google.com.au/search?hl=e...cu it&spell=1 |
#4
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TV picture distorted
On Jan 17, 1:10*am, "``ZACK``" wrote:
"PE" wrote in message m... Hi all: *My 15-yr old Toshiba 27" crt television has recently developed a problem which is that approx 15 minutes after being turned on, the picture bows inward on the left and right sides. *Then, after a few more minutes, the picture resolves and returns to normal and remains perfect for the remaining time the tv is on. *If the symptom described above means the crt is wearing out, so be it, the set will soon be history. *However, I'm wondering whether some other, replaceable part, might be going bad and causing the temporarily distorted picture. Would appreciate any suggestions re. probable cause(s) of symptom described above. *Am basically novice, but handy and with soldering skills, and have done a few simple tv repairs in the past. *Thanks for your replies! horizontal coupling cap faulty yoke or flyback tranformer circuit pincushion transformer circuit or try herehttp://www.devileye.net/catalog/boiling_liquefied_gas/side_pincushion... orhttp://www.google.com.au/search?hl=en&client=firefox-a&hs=bCP&rls=org... DIdn't you get enough relies on alt.home.repair???? |
#5
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TV picture distorted
Why ask a question to which you obviously already know the answer? What's
your point? wrote in message ... On Jan 17, 1:10 am, "``ZACK``" wrote: "PE" wrote in message m... Hi all: My 15-yr old Toshiba 27" crt television has recently developed a problem which is that approx 15 minutes after being turned on, the picture bows inward on the left and right sides. Then, after a few more minutes, the picture resolves and returns to normal and remains perfect for the remaining time the tv is on. If the symptom described above means the crt is wearing out, so be it, the set will soon be history. However, I'm wondering whether some other, replaceable part, might be going bad and causing the temporarily distorted picture. Would appreciate any suggestions re. probable cause(s) of symptom described above. Am basically novice, but handy and with soldering skills, and have done a few simple tv repairs in the past. Thanks for your replies! horizontal coupling cap faulty yoke or flyback tranformer circuit pincushion transformer circuit or try herehttp://www.devileye.net/catalog/boiling_liquefied_gas/side_pincushion... orhttp://www.google.com.au/search?hl=en&client=firefox-a&hs=bCP&rls=org... DIdn't you get enough relies on alt.home.repair???? |
#6
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TV picture distorted
"PE" Why ask a question to which you obviously already know the answer? What's your point? ** The only questions really worth asking someone are ones where you * know * what the answer is. Think about it..... ...... Phil |
#7
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TV picture distorted
On Jan 17, 3:11*am, "PE" wrote:
Hi all: *My 15-yr old Toshiba 27" crt television has recently developed a problem which is that approx 15 minutes after being turned on, the picture bows inward on the left and right sides. *Then, after a few more minutes, the picture resolves and returns to normal and remains perfect for the remaining time the tv is on. *If the symptom described above means the crt is wearing out, so be it, the set will soon be history. *However, I'm wondering whether some other, replaceable part, might be going bad and causing the temporarily distorted picture. Would appreciate any suggestions re. probable cause(s) of symptom described above. *Am basically novice, but handy and with soldering skills, and have done a few simple tv repairs in the past. *Thanks for your replies! resolder the connections of the coils in the E-W correction circuit, common fault. Nothing to do with the tube. Do be aware of high voltages in tvs, see the www.repairfaq.org before proceeding. good luck -B |
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