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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
Posted to sci.electronics.repair
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Magnavox model RJ4476 WA01 ch. 25G1-04 retrace lines
This set comes on OK and after about 5 minutes slowly seems to fade
into a pastel white screen with retrace lines. Surprisingly, changing the channel brings the picture back for a few seconds and then the screen "fades" back up to bright screen with retrace lines again. I'm suspecting perhaps a problem with a resistor changing value in the ABL circuit? Does anyone have any notes on this problem with this chassis. Thanks, Lenny |
#2
Posted to sci.electronics.repair
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Magnavox model RJ4476 WA01 ch. 25G1-04 retrace lines
On Sat, 25 Apr 2009 08:39:24 -0700 (PDT),
" put finger to keyboard and composed: This set comes on OK and after about 5 minutes slowly seems to fade into a pastel white screen with retrace lines. Surprisingly, changing the channel brings the picture back for a few seconds and then the screen "fades" back up to bright screen with retrace lines again. I'm suspecting perhaps a problem with a resistor changing value in the ABL circuit? Does anyone have any notes on this problem with this chassis. Thanks, Lenny AIUI, a bright white screen would cause the ABL circuit to operate, not vice versa. IIRC, a faulty ABL circuit causes the HV to be shut down, at least in some cases. It seems to me that you may be able to narrow down the fault with spray freeze. Perhaps there is a bad capacitor somewhere? - Franc Zabkar -- Please remove one 'i' from my address when replying by email. |
#3
Posted to sci.electronics.repair
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Magnavox model RJ4476 WA01 ch. 25G1-04 retrace lines
On Apr 25, 6:33*pm, Franc Zabkar wrote:
On Sat, 25 Apr 2009 08:39:24 -0700 (PDT), " put finger to keyboard and composed: This set comes on OK and after about 5 minutes slowly seems to fade into a pastel white screen with retrace lines. Surprisingly, changing the channel brings the picture back for a few seconds and then the screen "fades" back up to bright screen with retrace lines again. I'm suspecting perhaps a problem with a resistor changing value in the ABL circuit? Does anyone have any notes on this problem with this chassis. Thanks, Lenny AIUI, a bright white screen would cause the ABL circuit to operate, not vice versa. IIRC, a faulty ABL circuit causes the HV to be shut down, at least in some cases. It seems to me that you may be able to narrow down the fault with spray freeze. Perhaps there is a bad capacitor somewhere? - Franc Zabkar -- Please remove one 'i' from my address when replying by email. I should have mentioned that I did try cold spray around the flyback area but it had no effect. I thought that I had remembered that there might have been either an open or changed value resistor in these sets that may have caused this symptom. Maybe it wasn't a Nap chassis though. Lenny |
#4
Posted to sci.electronics.repair
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Magnavox model RJ4476 WA01 ch. 25G1-04 retrace lines
wrote in message ... This set comes on OK and after about 5 minutes slowly seems to fade into a pastel white screen with retrace lines. Surprisingly, changing the channel brings the picture back for a few seconds and then the screen "fades" back up to bright screen with retrace lines again. I'm suspecting perhaps a problem with a resistor changing value in the ABL circuit? Does anyone have any notes on this problem with this chassis. Thanks, Lenny If I were you I would throw a bowling ball through it and forget about T.V. all together. In 2000, I had a bad day at work. So I got home and saw the T.V. was tuned to MTV. So I went upstairs, got a bowling ball, and threw it through the screen and broke it. Then I took the bowling ball and threw it at the cabinet, and broke that and finished off the circuit board with it. I threw the T.V. pieces in the trash. My 27 inch T.V. was 6 inches tall when I was done with it, no higher than the speakers. I have not watched a minute of television since (unless it was in a resturant or at work) and don't miss it. I don't miss Judge Shyster or some jagoff pretending to be a doctor. I canceled cable, and when they asked me why I want to cancel cable I told them I had not receive another bill from them and hung up the fone. They did call me one day and asked if I would like to reactivate my cable subscription so I put the fone next to my ass and cut the loudest fart they have ever heard. I half way through eating a gallon of Anderson's French Vanilla ice cream when the doorbell rang so I opened the door and it was these young kids and they were offering me satellite T.V. service. It was the combo or bundle (you know fone, t.v. and internet rip off). I told them, "Let me get my checkbook" and I shut the door. I took a **** in my hand, opened the door, and threw the turd at them and told them that if they ever came back to my house, I would kick there asses. With the money I am not spending on cable T.V., I can spend it on things I truly enjoy. I have bought a bunch of oreos and twinkies and used them to fill up the void of space once left by my 27 incvh T.V. |
#5
Posted to sci.electronics.repair
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Magnavox model RJ4476 WA01 ch. 25G1-04 retrace lines
On Apr 26, 3:33*pm, "---\(** SiTrE JoSEpHEnNE MaGAna **\)---"
wrote: wrote in message ... This set comes on OK and after about 5 minutes slowly seems to fade into a pastel white screen with retrace lines. Surprisingly, changing the channel brings the picture back for a few seconds and then the screen "fades" back up to bright screen with retrace lines again. I'm suspecting perhaps a problem with a resistor changing value in the ABL circuit? Does anyone have any notes on this problem with this chassis. Thanks, Lenny If I were you I would throw a bowling ball through it and forget about T.V. all together. In 2000, I had a bad day at work. So I got home and saw the T.V. was tuned to MTV. So I went upstairs, got a bowling ball, and threw it through the screen and broke it. Then I took the bowling ball and threw it at the cabinet, and broke that and finished off the circuit board with it.. I threw the T.V. pieces in the trash. My 27 inch T.V. was 6 inches tall when I was done with it, no higher than the speakers. I have not watched a minute of television since (unless it was in a resturant or at work) and don't miss it. I don't miss Judge Shyster or some jagoff pretending to be a doctor. I canceled cable, and when they asked me why I want to cancel cable I told them I had not receive another bill from them and hung up the fone. They did call me one day and asked if I would like to reactivate my cable subscription so I put the fone next to my ass and cut the loudest fart they have ever heard. I half way through eating a gallon of Anderson's French Vanilla ice cream when the doorbell rang so I opened the door and it was these young kids and they were offering me satellite T.V. service. It was the combo or bundle (you know fone, t.v. and internet rip off). I told them, "Let me get my checkbook" and I shut the door. I took a **** in my hand, opened the door, and threw the turd at them and told them that if they ever came back to my house, I would kick there asses. With the money I am not spending on cable T.V., I can spend it on things I truly enjoy. I have bought a bunch of oreos and twinkies and used them to fill up the void of space once left by my 27 incvh T.V. The only "void of space" you're filling up is your pants. You must be lost. I think that you meant to post in alt.psychos.net Have another oreo and disappear, OK? |
#6
Posted to sci.electronics.repair,alt.sports.baseball.sd-padres,alt.sports.basketball.nba.la-lakers
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Magnavox model RJ4476 WA01 ch. 25G1-04 retrace lines
"---(** SiTrE JoSEpHEnNE MaGAna **)---" What is this? ****ing Myspace now? Since you like to eat so much why don't you go eat the corns out of Ashleigh Cope's ****. |
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