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Vertical Lines
Have a Toshiba 30HF85 30" TV. There are vertical lines at the top of the
screen. I believe I need to replace the cap near the vertical hold IC. Where is the vertical hold IC? Thanks. |
Vertical Lines
"DB" wrote in message m... Have a Toshiba 30HF85 30" TV. There are vertical lines at the top of the screen. I believe I need to replace the cap near the vertical hold IC. Where is the vertical hold IC? Thanks. Additional: What's the shape and how many pins? Thanks. |
Vertical Lines
"DB" wrote in message m... Have a Toshiba 30HF85 30" TV. There are vertical lines at the top of the screen. I believe I need to replace the cap near the vertical hold IC. Where is the vertical hold IC? Thanks. Mistake!! I have horizontal lines near top of screen!! Sorry. |
Vertical Lines
On Jun 22, 5:08*pm, "DB" wrote:
"DB" wrote in message m... Have a Toshiba 30HF85 30" TV. *There are vertical lines at the top of the screen. *I believe I need to replace the cap near the vertical hold IC. Where is the vertical hold IC? *Thanks. Mistake!! *I have horizontal lines near top of screen!! *Sorry. If you can't find the vertical section, it's reasonable to assume you can't find the dangerous EHT section either. I strongly recommend you find someone to repair it for you. G |
Vertical Lines
On Tue, 22 Jun 2010 20:08:53 -0400, DB ǝʇoɹʍ:
"DB" wrote in message m... Have a Toshiba 30HF85 30" TV. There are vertical lines at the top of the screen. I believe I need to replace the cap near the vertical hold IC. Where is the vertical hold IC? Thanks. Mistake!! I have horizontal lines near top of screen!! Sorry. Take it to a repair shop before you hurt yourself or worse. |
Vertical Lines
"DB" wrote in message m... "DB" wrote in message m... Have a Toshiba 30HF85 30" TV. There are vertical lines at the top of the screen. I believe I need to replace the cap near the vertical hold IC. Where is the vertical hold IC? Thanks. Mistake!! I have horizontal lines near top of screen!! Sorry. Listen guys. I have a 2 year degree in elect/electronics. I know all about the high voltage. I've been inside many a crt's without getting fried. I once fixed a crt monitor by replacing a dead cap. I appreciate the concern. New development: I realized it's as if the picture size has been increased vertically to where the image has returned at the top but upside down. Is there an adjustment or do I need to replace a component? Thanks. |
Vertical Lines
On Wed, 23 Jun 2010 10:18:24 -0400, DB ǝʇoɹʍ:
"DB" wrote in message m... "DB" wrote in message m... Have a Toshiba 30HF85 30" TV. There are vertical lines at the top of the screen. I believe I need to replace the cap near the vertical hold IC. Where is the vertical hold IC? Thanks. Mistake!! I have horizontal lines near top of screen!! Sorry. Listen guys. I have a 2 year degree in elect/electronics. I have a 35 year degree in experience on the job. The structure of your questions are a dead giveaway (no pun intended) that you should not be inside the back of a set relying on your associates degree to protect you. That is unless you wrap it around your hand as an insulator. |
Vertical Lines
"DB" wrote in message m... "DB" wrote in message m... Have a Toshiba 30HF85 30" TV. There are vertical lines at the top of the screen. I believe I need to replace the cap near the vertical hold IC. Where is the vertical hold IC? Thanks. Mistake!! I have horizontal lines near top of screen!! Sorry. I believe it's called vertical fold over. I most likely need to replace a bad cap near the vertical hold IC. Which takes me back to my original question: Where is the vertical hold IC? What's the shape and how many pins? Thanks. |
Vertical Lines
"Meat Plow" wrote in message ... On Wed, 23 Jun 2010 10:18:24 -0400, DB ??o??: "DB" wrote in message m... "DB" wrote in message m... Have a Toshiba 30HF85 30" TV. There are vertical lines at the top of the screen. I believe I need to replace the cap near the vertical hold IC. Where is the vertical hold IC? Thanks. Mistake!! I have horizontal lines near top of screen!! Sorry. Listen guys. I have a 2 year degree in elect/electronics. I have a 35 year degree in experience on the job. The structure of your questions are a dead giveaway (no pun intended) that you should not be inside the back of a set relying on your associates degree to protect you. That is unless you wrap it around your hand as an insulator. I've already been in there. You're not responsible. Which IC is it? Thanks. |
Vertical Lines
DB wrote:
Which takes me back to my original question: Where is the vertical hold IC? What's the shape and how many pins? Thanks. There are two coils on the back of the CRT. The horizontal is connected to the horizontal output transformer (which is also the high voltage transformer, I'm sure you recognize it). Now just track the connection to the other coil. This comes from the vertical output stage, which is driven by the vertical sync circuit. If your picture is stable besides of the wrong size, its probably not the vertical IC at fault, but the power amplifier after it, or the power supply. If there are only a few lines, and they are crossing the picture diagonally, then it's the beam which is not blanked during the vertical flyback. This can be caused by a worn out picture tube, or by the grid bias voltages. I don't know about your TV, but usually there are some potentiometers for adjusting the grid voltages and slightly changing it makes the lines diasppear. That's what it lools like: http://bs.cyty.com/menschen/e-etzold...47_ohneUVB.jpg Is yours similar to that? Stefan |
Vertical Lines
On Jun 23, 7:44*am, "DB" wrote:
"Meat Plow" wrote in message ... On Wed, 23 Jun 2010 10:18:24 -0400, DB ??o??: "DB" wrote in message news:vLmdnX7vEcXgzbzRnZ2dnUVZ_qCdnZ2d@earthlink. com... "DB" wrote in message news:deadnRItKurh1rzRnZ2dnUVZ_rCdnZ2d@earthlink .com... Have a Toshiba 30HF85 30" TV. *There are vertical lines at the top of the screen. *I believe I need to replace the cap near the vertical hold IC. Where is the vertical hold IC? *Thanks. Mistake!! *I have horizontal lines near top of screen!! *Sorry. Listen guys. *I have a 2 year degree in elect/electronics. I have a 35 year degree in experience on the job. The structure of your questions are a dead giveaway (no pun intended) that you should not be inside the back of a set relying on your associates degree to protect you. That is unless you wrap it around your hand as an insulator. I've already been in there. *You're not responsible. *Which IC is it? Thanks. Then buy the service manual. G |
Vertical Lines
"Stefan Heimers" wrote in message ... DB wrote: Which takes me back to my original question: Where is the vertical hold IC? What's the shape and how many pins? Thanks. There are two coils on the back of the CRT. The horizontal is connected to the horizontal output transformer (which is also the high voltage transformer, I'm sure you recognize it). Now just track the connection to the other coil. This comes from the vertical output stage, which is driven by the vertical sync circuit. If your picture is stable besides of the wrong size, its probably not the vertical IC at fault, but the power amplifier after it, or the power supply. If there are only a few lines, and they are crossing the picture diagonally, then it's the beam which is not blanked during the vertical flyback. This can be caused by a worn out picture tube, or by the grid bias voltages. I don't know about your TV, but usually there are some potentiometers for adjusting the grid voltages and slightly changing it makes the lines diasppear. That's what it lools like: http://bs.cyty.com/menschen/e-etzold...47_ohneUVB.jpg Is yours similar to that? Stefan Thanks. Finally some useful info. The symptoms look more like when the picture is adjusted to large and it folds back, to where you can see and image in the lines, but upside down. Only about 1" at the top. |
Vertical Lines
On Wed, 23 Jun 2010 10:44:36 -0400, DB ǝʇoɹʍ:
"Meat Plow" wrote in message ... On Wed, 23 Jun 2010 10:18:24 -0400, DB ??o??: "DB" wrote in message m... "DB" wrote in message m... Have a Toshiba 30HF85 30" TV. There are vertical lines at the top of the screen. I believe I need to replace the cap near the vertical hold IC. Where is the vertical hold IC? Thanks. Mistake!! I have horizontal lines near top of screen!! Sorry. Listen guys. I have a 2 year degree in elect/electronics. I have a 35 year degree in experience on the job. The structure of your questions are a dead giveaway (no pun intended) that you should not be inside the back of a set relying on your associates degree to protect you. That is unless you wrap it around your hand as an insulator. I've already been in there. You're not responsible. Which IC is it? Thanks. If you have a pdf document source for the schematic I'll have a look and let you know. |
Vertical Lines
DB wrote: "Meat Plow" wrote in message ... On Wed, 23 Jun 2010 10:18:24 -0400, DB ??o??: "DB" wrote in message m... "DB" wrote in message m... Have a Toshiba 30HF85 30" TV. There are vertical lines at the top of the screen. I believe I need to replace the cap near the vertical hold IC. Where is the vertical hold IC? Thanks. Mistake!! I have horizontal lines near top of screen!! Sorry. Listen guys. I have a 2 year degree in elect/electronics. I have a 35 year degree in experience on the job. The structure of your questions are a dead giveaway (no pun intended) that you should not be inside the back of a set relying on your associates degree to protect you. That is unless you wrap it around your hand as an insulator. I've already been in there. You're not responsible. Which IC is it? How do you know it's a bad IC? -- Anyone wanting to run for any political office in the US should have to have a DD214, and a honorable discharge. |
Vertical Lines
DB wrote: "DB" wrote in message m... "DB" wrote in message m... Have a Toshiba 30HF85 30" TV. There are vertical lines at the top of the screen. I believe I need to replace the cap near the vertical hold IC. Where is the vertical hold IC? Thanks. Mistake!! I have horizontal lines near top of screen!! Sorry. I believe it's called vertical fold over. I most likely need to replace a bad cap near the vertical hold IC. Which takes me back to my original question: Where is the vertical hold IC? What's the shape and how many pins? Thanks. Vertical hold? That went away, decades ago. -- Anyone wanting to run for any political office in the US should have to have a DD214, and a honorable discharge. |
Vertical Lines
"Michael A. Terrell" wrote in message m... DB wrote: "DB" wrote in message m... "DB" wrote in message m... Have a Toshiba 30HF85 30" TV. There are vertical lines at the top of the screen. I believe I need to replace the cap near the vertical hold IC. Where is the vertical hold IC? Thanks. Mistake!! I have horizontal lines near top of screen!! Sorry. I believe it's called vertical fold over. I most likely need to replace a bad cap near the vertical hold IC. Which takes me back to my original question: Where is the vertical hold IC? What's the shape and how many pins? Thanks. Vertical hold? That went away, decades ago. -- Anyone wanting to run for any political office in the US should have to have a DD214, and a honorable discharge. That's ok, Michael. Stefan knows what I'm talking about, and he's knows what he's talking about too. |
Vertical Lines
On Wed, 23 Jun 2010 14:11:47 -0400, DB ǝʇoɹʍ:
"Michael A. Terrell" wrote in message m... DB wrote: "DB" wrote in message m... "DB" wrote in message m... Have a Toshiba 30HF85 30" TV. There are vertical lines at the top of the screen. I believe I need to replace the cap near the vertical hold IC. Where is the vertical hold IC? Thanks. Mistake!! I have horizontal lines near top of screen!! Sorry. I believe it's called vertical fold over. I most likely need to replace a bad cap near the vertical hold IC. Which takes me back to my original question: Where is the vertical hold IC? What's the shape and how many pins? Thanks. Vertical hold? That went away, decades ago. -- Anyone wanting to run for any political office in the US should have to have a DD214, and a honorable discharge. That's ok, Michael. Stefan knows what I'm talking about, and he's knows what he's talking about too. It's near the big thing with blue and yellow wires. That is on the side of a thing that looks like a little green round thing but should be black but if not maybe green also. Trace that thing over by the other thing and you might see a thing that matches it. If so look to the left of that thing and underneath another thing. Let me know how it works out for you. |
Vertical Lines
"Meat Plow" wrote in message ... On Wed, 23 Jun 2010 14:11:47 -0400, DB ??o??: "Michael A. Terrell" wrote in message m... DB wrote: "DB" wrote in message m... "DB" wrote in message m... Have a Toshiba 30HF85 30" TV. There are vertical lines at the top of the screen. I believe I need to replace the cap near the vertical hold IC. Where is the vertical hold IC? Thanks. Mistake!! I have horizontal lines near top of screen!! Sorry. I believe it's called vertical fold over. I most likely need to replace a bad cap near the vertical hold IC. Which takes me back to my original question: Where is the vertical hold IC? What's the shape and how many pins? Thanks. Vertical hold? That went away, decades ago. -- Anyone wanting to run for any political office in the US should have to have a DD214, and a honorable discharge. That's ok, Michael. Stefan knows what I'm talking about, and he's knows what he's talking about too. It's near the big thing with blue and yellow wires. That is on the side of a thing that looks like a little green round thing but should be black but if not maybe green also. Trace that thing over by the other thing and you might see a thing that matches it. If so look to the left of that thing and underneath another thing. Let me know how it works out for you. Are you serious? |
Vertical Lines
DB wrote:
That's ok, Michael. Stefan knows what I'm talking about, and he's knows what he's talking about too. It's near the big thing with blue and yellow wires. That is on the side of a thing that looks like a little green round thing but should be black but if not maybe green also. Trace that thing over by the other thing and you might see a thing that matches it. If so look to the left of that thing and underneath another thing. Let me know how it works out for you. Are you serious? Brutally honest is the word that came to my mind. ;-) Jeff -- Egotism is the anesthetic that dulls the pain of stupidity. Frank Leahy, Head coach, Notre Dame 1941-1954 http://www.stay-connect.com |
Vertical Lines
On Wed, 23 Jun 2010 16:12:35 -0400, DB ǝʇoɹʍ:
"Meat Plow" wrote in message ... On Wed, 23 Jun 2010 14:11:47 -0400, DB ??o??: "Michael A. Terrell" wrote in message m... DB wrote: "DB" wrote in message m... "DB" wrote in message m... Have a Toshiba 30HF85 30" TV. There are vertical lines at the top of the screen. I believe I need to replace the cap near the vertical hold IC. Where is the vertical hold IC? Thanks. Mistake!! I have horizontal lines near top of screen!! Sorry. I believe it's called vertical fold over. I most likely need to replace a bad cap near the vertical hold IC. Which takes me back to my original question: Where is the vertical hold IC? What's the shape and how many pins? Thanks. Vertical hold? That went away, decades ago. -- Anyone wanting to run for any political office in the US should have to have a DD214, and a honorable discharge. That's ok, Michael. Stefan knows what I'm talking about, and he's knows what he's talking about too. It's near the big thing with blue and yellow wires. That is on the side of a thing that looks like a little green round thing but should be black but if not maybe green also. Trace that thing over by the other thing and you might see a thing that matches it. If so look to the left of that thing and underneath another thing. Let me know how it works out for you. Are you serious? Hell yes! |
Vertical Lines
On Wed, 23 Jun 2010 11:30:42 -0400, "DB" put finger to
keyboard and composed: The symptoms look more like when the picture is adjusted to large and it folds back, to where you can see and image in the lines, but upside down. Only about 1" at the top. The vertical amp IC is usually a SIP attached to a heatsink, around 9 pins or so. Replace the electrolytic capacitors in the neighbourhood of this IC. Typical part number prefixes are TA (Toshiba), AN (Matsu****a, Panasonic), LA (Sanyo). You can probably find a datasheet, with application circuit, he http://www.datasheetarchive.com/ - Franc Zabkar -- Please remove one 'i' from my address when replying by email. |
Vertical Lines
DB wrote: That's ok, Michael. Stefan knows what I'm talking about, and he's knows what he's talking about too. Sure he does. You sure don't. -- Anyone wanting to run for any political office in the US should have to have a DD214, and a honorable discharge. |
Vertical Lines
"Michael A. Terrell" wrote in message m... DB wrote: That's ok, Michael. Stefan knows what I'm talking about, and he's knows what he's talking about too. Sure he does. You sure don't. That's why I'm posting here, to get helpful information. Why are you posting here? To shoot more negative bile out of your big mouth. Just another jerk who's a really big man (on line). |
Vertical Lines
DB wrote: "Michael A. Terrell" wrote in message m... DB wrote: That's ok, Michael. Stefan knows what I'm talking about, and he's knows what he's talking about too. Sure he does. You sure don't. That's why I'm posting here, to get helpful information. Why are you posting here? To shoot more negative bile out of your big mouth. Just another jerk who's a really big man (on line). Whatever you want to think. In two months, I will have worked 45 years in electronics manufacturing and repair. You will still be bitter, and asking vague questions. -- Anyone wanting to run for any political office in the US should have to have a DD214, and a honorable discharge. |
Vertical Lines
"Michael A. Terrell" wrote in message m... DB wrote: "Michael A. Terrell" wrote in message m... DB wrote: That's ok, Michael. Stefan knows what I'm talking about, and he's knows what he's talking about too. Sure he does. You sure don't. That's why I'm posting here, to get helpful information. Why are you posting here? To shoot more negative bile out of your big mouth. Just another jerk who's a really big man (on line). Whatever you want to think. In two months, I will have worked 45 years in electronics manufacturing and repair. You will still be bitter, and asking vague questions. That's funny. I though you were some young punk who hadn't learned any life lessons yet, or who didn't know the value of being generally decent. Good luck. Some people die at 25 and aren't buried until 75. - Benjamin Franklin |
Vertical Lines
On Fri, 25 Jun 2010 20:47:15 -0400, DB ǝʇoɹʍ:
"Michael A. Terrell" wrote in message m... DB wrote: That's ok, Michael. Stefan knows what I'm talking about, and he's knows what he's talking about too. Sure he does. You sure don't. That's why I'm posting here, to get helpful information. Why are you posting here? To shoot more negative bile out of your big mouth. Just another jerk who's a really big man (on line). sounds of WW2 B52 shot down in flames plummeting to earth Well I guess this seals your fate as far as getting much in the way of anything but ridicule from the regs here. Better try a repair group where you haven't insulted everyone's intelligence. |
Vertical Lines
"Meat Plow" wrote in message ... On Fri, 25 Jun 2010 20:47:15 -0400, DB ??o??: "Michael A. Terrell" wrote in message m... DB wrote: That's ok, Michael. Stefan knows what I'm talking about, and he's knows what he's talking about too. Sure he does. You sure don't. That's why I'm posting here, to get helpful information. Why are you posting here? To shoot more negative bile out of your big mouth. Just another jerk who's a really big man (on line). sounds of WW2 B52 shot down in flames plummeting to earth Well I guess this seals your fate as far as getting much in the way of anything but ridicule from the regs here. Better try a repair group where you haven't insulted everyone's intelligence. everyone? |
Vertical Lines
DB wrote:
"Meat Plow" wrote in message ... On Fri, 25 Jun 2010 20:47:15 -0400, DB ??o??: "Michael A. Terrell" wrote in message m... DB wrote: That's ok, Michael. Stefan knows what I'm talking about, and he's knows what he's talking about too. Sure he does. You sure don't. That's why I'm posting here, to get helpful information. Why are you posting here? To shoot more negative bile out of your big mouth. Just another jerk who's a really big man (on line). sounds of WW2 B52 shot down in flames plummeting to earth Well I guess this seals your fate as far as getting much in the way of anything but ridicule from the regs here. Better try a repair group where you haven't insulted everyone's intelligence. everyone? No, the rest will ingnore the insults from a child or troll. |
Vertical Lines
On Sat, 26 Jun 2010 12:21:02 -0400, DB ǝʇoɹʍ:
"Meat Plow" wrote in message ... On Fri, 25 Jun 2010 20:47:15 -0400, DB ??o??: "Michael A. Terrell" wrote in message m... DB wrote: That's ok, Michael. Stefan knows what I'm talking about, and he's knows what he's talking about too. Sure he does. You sure don't. That's why I'm posting here, to get helpful information. Why are you posting here? To shoot more negative bile out of your big mouth. Just another jerk who's a really big man (on line). sounds of WW2 B52 shot down in flames plummeting to earth Well I guess this seals your fate as far as getting much in the way of anything but ridicule from the regs here. Better try a repair group where you haven't insulted everyone's intelligence. everyone? I think that's a fair estimate. Although you still might someone who feels sorry for you or hasn't read your oblique and ambiguous posts. |
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