Great video ! Thanks. I just got a free - great working 1998 Admiral Orion 20 inch TV with integral VHS and want to get into it and attempt to repair the non working VHS. I have been scared of the high voltage but now know it will automatically discharge and I will be safe with the unit unplugged. Thanks again.
Yes they are, and they were super expensive when they were new. Close to 1000.00 for that set. They were popular in RV's trailers and boats because they were AC/DC sets, and of course were also monitors.I'll never part with my little 8" Trinitron. For that matter I will be hanging onto the few tube sets I have as collector pieces. Same with my plasma sets. I'll hang on to a few of them as well, just because they are cool the way they operate. LCD sets are just boring. If an LCD dies I am more inclined to toss it as opposed to trying to fix it. I only own 1 LCD set, and that is my 4K test monitor in the studio that I use for checking video quality on. Everything else I have is plasma. LCD, and I am referring to the LED backlight type) have improved greatly since the early ones, but still don't have the contrast, refresh rate, and viewing angle of plasma. OLED looks promising if they can get the price down.
I guess im asking the wrong place but does anybody know a method to get back into an instagram account? I somehow forgot my account password. I would appreciate any tips you can give me
@George Rhys thanks for your reply. I found the site thru google and I'm waiting for the hacking stuff atm. Seems to take quite some time so I will reply here later with my results.
I used to have a indextron, which is a 3.5" color indextron tube. It uses a single gun monochrome type tube to produce color by using an index stripeon the back side of the tube that would create an index strobe, read by a photo transistor mounted on the bell of the tube. This index signal was used to synchronize the TDM color switching that would switch R,G,B,i,R,G,B,IThe "I" is the index which was a blue flash on the inside of the tube for the index pilot. I had one given to me, but if I remember the filament of the tube was open, and the tube unavailable. I do have the manual, and perhaps that would be good for a review some time, as this was a completely unique set that nobody else ever made. I also used to have a 5" citizen color set. Don't know what ever happened to that one either. Think the tube got broken on it.
Hi, great video. I have the same little CRT but the sound is corrupted with a buzzing tone that changes with volume adjustment. Do you have any tips where should I start to look? Thanks!
I have 29 inch Salora crt and it has obviously vertical side problem. The picture started to get smaller and smaller from the down side of the tube horizontally. At first it was a little horizontal area and it got wider and wider. Is it vertical ic or what???
In this nice video. I saw near your soldering station video registrator for car. I think it is like mine but i have problem with it. I cant charge from the converter 12V to 5V. But it slowly charges through usb that this can be fixed?
I recently purchased a KV-9PT50, one of the last of the small Trinitron sets. Works well but the picture is a bit distored; perhaps I should go and check the capacitors in the deflection circuitry.
I got that set for free about 25 years ago. The owner dropped it and broke the cabinet and PCboard. I repaired it, but I explained that I couldn't guarantee the repair because it had been dropped, and something might fail down the road, so they said chuck it and bought a new one for their camper. So I took it home. Great little monitor. It is part of my collection of small TVs. I have a 2" Sony Watchman (B/W flat tube) 4" Sony Watchcam monitor (Flat tube) Panasonic CT101 1.5" color CRT (delta matrix tube) Sony Vidimagic single sube video projector (indextron tube) and a 14", 19", 20" and the last 21" trinitron model that Sony made as well as a few B/W monitors and sets, and some vintage video equipment. Beta, VHS, SVHS and 3/4" decks.I ahve a few old production ENG cameras and a professional ENG camera as well from back in my video production days.
Wow that's a bit of a collection, I only have a few sets mainly for vhs tapes and old games now. i actually worked at the Panasonic factory in cardiff for a few weeks putting crts together on the line after I left school. I don't think I ever seen crt as small as 1.5" is it from a camera viewfinder do you have a video on that? I picked up a very unusual crt myself recently some sort of russian sony trinitron it has a really comprehensive chassis I never seen a set with so many adjustments.
I have a few small 14`` sets I use mainly for video projects. I generally get a tech friend to plant a few faults in. Put in a shorted transistor or cap, or open resistor and not tell me the fault and do a trouble shooting video on them. I use small sets only because they are easy to store, and the circuitry is the same. I have a few Panasonic sets. One I leave outside all year long so that moisture gets to it and creats a real fault that I can then troubleshoot.
Maybe the cover was for an optional, internal battery? Some AC/DC sets did have internal batteries, and others had the battery pack that had a special plug that fit in the socket, but only if you flip the "source" switch to DC, and the AC cord had a similar plug that would only fit if you switched the "source" to AC.
You seem to be the man to talk to. I have a Tektronix TDS744a Oscilliscope that displays angled lines on first power up. As it warms up for about 60 seconds the angled lines fade and the video is normal. It has a standard CRT with symbolic video. It looks like the screen bias is turned up to high when it first powers on but as I said it fades after about a minute and looks normal. I don't have schematics but my guess its a bad capacitor somewhere around the high voltage transformer. What do you think?
How many volts are supplied to the crt via the heavily insulated red cord that is on the back of the screen. The cord that leads to the suction cup looking insulated piece where you would typically dischare the crt. I am also wondering which wire is hot and which is neutral. I am missing the power cord, but see that there is shape to the power cord where it connects to t.v. One side of cord is rounded at the top while the other is flat on the bottom. I figure the top is hot, and bottom flat piece is neutral.
Looking at it again, it is just the screw areas on the back that are broken. The tape was a precaution to keep it from coming apart. The board has a crack but I fixed that in 1990
sony knew how to take advantage of their trinitron technology, great vid. btw can you please give us an explanation of ABL and IK circuit in sonys tvs. thank you
A lot of Sony consumer Trinitrons for North America were made in Mexico, though some were made in San Diego, CA. My PVM-2530 Trinitron, though, was made in Japan. I love Trinitron sets.
The problem with Trinitron was the relatively low resolution of the tube. That is why they looked so good, Even though the circuitry could pass 500 lines of resolution they tube couldn't resolve more than about 220due to all the color stripes being relatively wide. When I worked in broadcast engineers would look at tapes on Conrac or Tektronix monitors for quality checks as they could see phasing problems, color sync issues and all kinds of problems that may have made the tape unairable, yet the same tape played on the same video machine looked perfrect on the Sony studio monitor.I used to have an old KV25XBR but I chucked it because the big red HV resistor that sets the static convergence had failed and was arcing.
12voltvids That's the part I'm kind of worried about with my PVM; how much longer the resistor block between the anode and the flyback will last. And, I guess that's a mixed bag, about the resolution of the tube; for critical analysis, it's a problem but, for consumers, it may be just fine. For the Conrac and Tektronix monitors, I wonder what CRTs they used (obviously, a brand of shadow mask tubes; wonder if they may be Panasonic or Philips).
Conrac monitors used.... wait for it.... CONRAC tubes! Yes they built their own CRT, or had a tube factory make tubes to their spec. I have 2 Conrac color monitors, made in the USA in California. Here is a video to one of them. I plan to do a tear down where I will go through them with a scope and show all the cool signals and play with alignment ect on one.ua-cam.com/video/HEXLlqJQ7Oc/v-deo.html
Absolutely. They show ALL the flaws on video. Check out the link I included on my time base corrector video and you will see how it shows time base errors and jitter in the video.I will be doing a demo on t hat monitor giving it a picture from a broadcast camera so that the quality can be shown off, as looking at home video on it looks horrible. It shows all the noise in the chroma from consumer stuff, but a good signal from a professional camera will really shine on it. I'll fire up my JVC broadcast camera and hook that directly to the monitor.
Actually I got that one from the shop I worked at. The little old lady that probably paid 600 of more for it. Her grandson pulled it down and broke the circuit board and cabinet. It came into the shop and I repaired it. Repair was probably about 90.00 and the shop owner said "Because it has been dropped we can't guarantee how long the fix will last" so she said chuck it and bought another one. Since I was piece work, and had already done the repair I just took it home, and it has been working perfect ever since. I used to haul it out to video shoots to check camera color ect when I was doing production work. Been a real work horse, and has been thrown around for years in and out of my truck, out to venues. I used to shoot a ton of junior hockey games for the coaches and scouts. Out for 6AM games several times a week with my big broadcast camera. Was an easy 100 bucks in my pocket for every game. Would set up this monitor on table on the scaffold I was perched on and sit back and film the game in comfort.
Smashing job sir, well worth the time :-D Gotta love the analog tv's, long lasting, i like crt's better than modern displays. I suppose im just a stick in the mud. I used to have an old phillips G8, never a perfect tv but it lasted, i changed the crt when it got really bad and spent quite a while tweaking the convergence panel for R/G/B convergence. That was fun lol.
I do too and I have 32", 24"and 12" sanyos, 1995 Samsung which took the place of my flat screen in my bedroom because I had now HDMI stuff to plug in to it. my 1984 tmk 5" w/b TV/radio and finally my 1975 ge hybrid set which still works with my old roku with rf modulator .
I had a nice 34' CRT HDTV set that I gave away, and the person I gave it to threw it out! Would love to have that set now. It had a fantastic picture when displaying HD content.
hello sir, I hope all is well with you. it very nice little TV. I have 6 inches Trinitron one. I hope you could advise me how to transfer video and stereo sound via UHF within house. the I can use my portable tv.
The only way you will get stereo sound over RF for an analog stsreo TV is with a stereo modulator. Years ago Radio Shack sold such a unit, and it was switchable channel 3 and 4, but it was low power so it had to be connected directly to the TV by cable.What you need to find is a used commercial head end modulator such as a Blonder Tongue CAM-S60 such as the one I picked up in the surplus bin at a local electronics shop for 50.00. See my video of it here.ua-cam.com/video/PONbi6vNpvAT/v-deo.htmlhis unit has a +60dB output, as it was designed to go into an RF combiner, where signals from all the other modulators in a cable head end are mixed together to combine all the channels.With a +60dB output it is more than strong enough to drive an amplifier (transmitter) but of course that would be illegal. Never the less, connecting the output to a home made dipole puts out enough signal that I can receive it throughout my house. As you probably notice that when I tune to channel 12, that is the BT signal, it is perfect, and there is no antenna on the set or on the modulator. My 6 modulators (4 VHF and 2 UHF) are all connected to splitters to combine the signals, and then are split to go to every outlet in the house, as well as the off air signals from my odd air antenna is added. The mixed signals, (off air and internally generated analog) are then spilt and head to 12 outlets throughout the house. So, this signal here, with just an 8`wire hanging off the coax in no way represents what comes out of the modulator, as it is probably closer to 0dB by the time it gets mixed and split. When I first got the unit I connected an antenna, and it reached throughout the house, and well out into the back yard. I have several other commercial modulators that have a good signal output, but none as strong as the CAM-S60. The others are not stereo sound either, except for the weak little Radio shack, which required a 20dB cable amp added to it just so it would be strong enough to get through the cable system in the house!
This video prooves that if a device seems to have a serious problem, it might be an easy fix! So happened on my JVC HR-7700 VHS. It played in black and white and I thought there were bad caps on the chroma board but after that I noticed I had the Colour/B/W switch set to B/W!... I felt stupid, but I laughed.
That's like the hours I spent on one of my SLHF1000 decks that had no picture chasing through the video circuit only to find the muting transistors "on" and being biased on by the "Black" switch on the front panel. DOH!Yes that repair is up on the channel too, it is a good theory and signal tracing exercise.
I own a Sony Wega KV-24FS120 CRT that I bought from Sears in 2007 and I use in my bedroom. It's an Excellent television. Well, it doesn't have 10 years of use because in the first couple of years I didn't watch it much so I'd say it probably has about 8 years of use but this evening, while I was staring at my phone, I noticed that my TV powered off on its own. I looked down and saw the standby indicator light blinking twice. This is the first time I ever had an issue with this TV in 10 years. I discovered that this means +B over current (OCP) has been detected and "Occurs when an over current on the +B (135V) line is detected by pin 72 of IC001 (A Board)" and could mean "H.OUT (Q505) is shorted. (A Board)". I'm a pretty technical guy, but this is too technical for me. I was actually surprised I found such detailed troubleshooting data. I wouldn't attempt to fix this myself due to this being a CRT TV and the high voltage scenario. I really feel a TV like this is worth keeping since this was the last generation Sony Wega before they started installing digital tuners and one of the few great TVs before LCDs took over. I actually just recently acquired a Roku Express plus that works with CRT TVs and it looks excellent on this television. These TVs are also great for gaming. Is this a major repair or something rather simple? And what do you think the estimated cost would be. I live in Florida. Thank you so much for your time.
Yes the H out may have shorted. That would have to be tested with a meter. Quie often the solder will crack on the H drive transformer. Loss of drive will cause the H out transistor to short.
12voltvids thank you so much for the prompt reply! I'm surprised I caught you still up. So if this were the scenario, could you estimate how much this repair would cost ( approximately or typically.) I wouldn't attempt myself. I really appreciate the information! I don't even know if this is the case right now since I had it plugged into a Monster surge protector and just now am doing the power cycle test (unplug for a while.) fingers crossed.
When I was in the repair business a repair of the horizontal deflection when only the horizontal output was blown was generally in the 100 range by the time labour and taxes were factored in, but that was early 2000's. If the cause is the flyback, which is also entirely possible, it would drive up the cost.
Great video ! Thanks. I just got a free - great working 1998 Admiral Orion 20 inch TV with integral VHS and want to get into it and attempt to repair the non working VHS. I have been scared of the high voltage but now know it will automatically discharge and I will be safe with the unit unplugged. Thanks again.
What a cute little TV, I'd love to have a CRT TV that size!
i love those crt tv's, i was boring today ,so i kept going back in time to look some old vids, alway's a pleasure to see your vids Dave 🙂
I like small crts. 5" 8"
Those are terrific little monitors. Mine had a power supply problem - the switching transistor fried and took out the fuse with it.
Yes they are, and they were super expensive when they were new. Close to 1000.00 for that set. They were popular in RV's trailers and boats because they were AC/DC sets, and of course were also monitors.I'll never part with my little 8" Trinitron. For that matter I will be hanging onto the few tube sets I have as collector pieces. Same with my plasma sets. I'll hang on to a few of them as well, just because they are cool the way they operate. LCD sets are just boring. If an LCD dies I am more inclined to toss it as opposed to trying to fix it. I only own 1 LCD set, and that is my 4K test monitor in the studio that I use for checking video quality on. Everything else I have is plasma. LCD, and I am referring to the LED backlight type) have improved greatly since the early ones, but still don't have the contrast, refresh rate, and viewing angle of plasma. OLED looks promising if they can get the price down.
Great job on the repair mate. Always fun watching your videos :)
I guess im asking the wrong place but does anybody know a method to get back into an instagram account?
I somehow forgot my account password. I would appreciate any tips you can give me
@Otis Kamden Instablaster ;)
@George Rhys thanks for your reply. I found the site thru google and I'm waiting for the hacking stuff atm.
Seems to take quite some time so I will reply here later with my results.
@George Rhys it did the trick and I finally got access to my account again. Im so happy!
Thank you so much, you really help me out !
@Otis Kamden you are welcome :D
Nice mini-set, I like this quality of trinitron picture tube.
FANTASTIC repair MAN
brill video and i love these little tvs, they have a really good picture.
I used to have a indextron, which is a 3.5" color indextron tube. It uses a single gun monochrome type tube to produce color by using an index stripeon the back side of the tube that would create an index strobe, read by a photo transistor mounted on the bell of the tube. This index signal was used to synchronize the TDM color switching that would switch R,G,B,i,R,G,B,IThe "I" is the index which was a blue flash on the inside of the tube for the index pilot. I had one given to me, but if I remember the filament of the tube was open, and the tube unavailable. I do have the manual, and perhaps that would be good for a review some time, as this was a completely unique set that nobody else ever made. I also used to have a 5" citizen color set. Don't know what ever happened to that one either. Think the tube got broken on it.
Hi, great video. I have the same little CRT but the sound is corrupted with a buzzing tone that changes with volume adjustment. Do you have any tips where should I start to look? Thanks!
I have 29 inch Salora crt and it has obviously vertical side problem. The picture started to get smaller and smaller from the down side of the tube horizontally. At first it was a little horizontal area and it got wider and wider. Is it vertical ic or what???
In this nice video. I saw near your soldering station video registrator for car. I think it is like mine but i have problem with it. I cant charge from the converter 12V to 5V. But it slowly charges through usb that this can be fixed?
hi i need so advice i have a sansui 74cm tvmodel.sv29E11 that have a av and tuner problem
Man there was some good information about crt's. :)
I recently purchased a KV-9PT50, one of the last of the small Trinitron sets. Works well but the picture is a bit distored; perhaps I should go and check the capacitors in the deflection circuitry.
I can tell you love that little set ...:) loved the video as I am from Wales too.
I got that set for free about 25 years ago. The owner dropped it and broke the cabinet and PCboard. I repaired it, but I explained that I couldn't guarantee the repair because it had been dropped, and something might fail down the road, so they said chuck it and bought a new one for their camper. So I took it home. Great little monitor. It is part of my collection of small TVs. I have a 2" Sony Watchman (B/W flat tube) 4" Sony Watchcam monitor (Flat tube) Panasonic CT101 1.5" color CRT (delta matrix tube) Sony Vidimagic single sube video projector (indextron tube) and a 14", 19", 20" and the last 21" trinitron model that Sony made as well as a few B/W monitors and sets, and some vintage video equipment. Beta, VHS, SVHS and 3/4" decks.I ahve a few old production ENG cameras and a professional ENG camera as well from back in my video production days.
Wow that's a bit of a collection, I only have a few sets mainly for vhs tapes and old games now. i actually worked at the Panasonic factory in cardiff for a few weeks putting crts together on the line after I left school. I don't think I ever seen crt as small as 1.5" is it from a camera viewfinder do you have a video on that? I picked up a very unusual crt myself recently some sort of russian sony trinitron it has a really comprehensive chassis I never seen a set with so many adjustments.
I have a few small 14`` sets I use mainly for video projects. I generally get a tech friend to plant a few faults in. Put in a shorted transistor or cap, or open resistor and not tell me the fault and do a trouble shooting video on them. I use small sets only because they are easy to store, and the circuitry is the same. I have a few Panasonic sets. One I leave outside all year long so that moisture gets to it and creats a real fault that I can then troubleshoot.
Maybe the cover was for an optional, internal battery? Some AC/DC sets did have internal batteries, and others had the battery pack that had a special plug that fit in the socket, but only if you flip the "source" switch to DC, and the AC cord had a similar plug that would only fit if you switched the "source" to AC.
You seem to be the man to talk to. I have a Tektronix TDS744a Oscilliscope that displays angled lines on first power up. As it warms up for about 60 seconds the angled lines fade and the video is normal. It has a standard CRT with symbolic video. It looks like the screen bias is turned up to high when it first powers on but as I said it fades after about a minute and looks normal. I don't have schematics but my guess its a bad capacitor somewhere around the high voltage transformer. What do you think?
If it uses a raster scan like a conventional monitor it sounds like the screen cap is going bad.
How many volts are supplied to the crt via the heavily insulated red cord that is on the back of the screen. The cord that leads to the suction cup looking insulated piece where you would typically dischare the crt. I am also wondering which wire is hot and which is neutral. I am missing the power cord, but see that there is shape to the power cord where it connects to t.v. One side of cord is rounded at the top while the other is flat on the bottom. I figure the top is hot, and bottom flat piece is neutral.
2nd anode voltage can be upwards of 25kv on a color CRT and 10kv on black and white tubes. Larger tubes can be 30kv.
great job!!
my 12voltvids any chance you could pm me I need to ask a question regarding a trinitron tube replacment.
its such a shame the casing is broken on the TV, I love these old Trinitron sets, this one is a beauty.
Looking at it again, it is just the screw areas on the back that are broken. The tape was a precaution to keep it from coming apart. The board has a crack but I fixed that in 1990
Always learning keep em coming sensei! ❤
Wavecom A2020 agile modulator going up tonight.
+12voltvids I'm so there 🙋
From getting once shocked from a large CRT, I would have been scared, even though the CRT did not light up, and discharged the CRT anode.
sony knew how to take advantage of their trinitron technology, great vid. btw can you please give us an explanation of ABL and IK circuit in sonys tvs. thank you
I'll put together a trinitron theory video.
aqua dag ?
A lot of Sony consumer Trinitrons for North America were made in Mexico, though some were made in San Diego, CA.
My PVM-2530 Trinitron, though, was made in Japan.
I love Trinitron sets.
The problem with Trinitron was the relatively low resolution of the tube. That is why they looked so good, Even though the circuitry could pass 500 lines of resolution they tube couldn't resolve more than about 220due to all the color stripes being relatively wide. When I worked in broadcast engineers would look at tapes on Conrac or Tektronix monitors for quality checks as they could see phasing problems, color sync issues and all kinds of problems that may have made the tape unairable, yet the same tape played on the same video machine looked perfrect on the Sony studio monitor.I used to have an old KV25XBR but I chucked it because the big red HV resistor that sets the static convergence had failed and was arcing.
12voltvids That's the part I'm kind of worried about with my PVM; how much longer the resistor block between the anode and the flyback will last.
And, I guess that's a mixed bag, about the resolution of the tube; for critical analysis, it's a problem but, for consumers, it may be just fine.
For the Conrac and Tektronix monitors, I wonder what CRTs they used (obviously, a brand of shadow mask tubes; wonder if they may be Panasonic or Philips).
Conrac monitors used.... wait for it.... CONRAC tubes! Yes they built their own CRT, or had a tube factory make tubes to their spec. I have 2 Conrac color monitors, made in the USA in California. Here is a video to one of them. I plan to do a tear down where I will go through them with a scope and show all the cool signals and play with alignment ect on one.ua-cam.com/video/HEXLlqJQ7Oc/v-deo.html
12voltvids Cool, and that would mean that Conrac can completely ensure that their monitors meet the demands that they were built for.
Absolutely. They show ALL the flaws on video. Check out the link I included on my time base corrector video and you will see how it shows time base errors and jitter in the video.I will be doing a demo on t hat monitor giving it a picture from a broadcast camera so that the quality can be shown off, as looking at home video on it looks horrible. It shows all the noise in the chroma from consumer stuff, but a good signal from a professional camera will really shine on it. I'll fire up my JVC broadcast camera and hook that directly to the monitor.
I have a KX-20PS1 monitor in laboratory, it's a great monitor.
One question? Is there anything electrical Dave don't know how to fix? Your skills and knowledge are
I don't doubt he could fix anything if it was feasible. He has a great talent.
Did Frodo sell that to you from a Craigslist ad?
Actually I got that one from the shop I worked at. The little old lady that probably paid 600 of more for it. Her grandson pulled it down and broke the circuit board and cabinet. It came into the shop and I repaired it. Repair was probably about 90.00 and the shop owner said "Because it has been dropped we can't guarantee how long the fix will last" so she said chuck it and bought another one. Since I was piece work, and had already done the repair I just took it home, and it has been working perfect ever since. I used to haul it out to video shoots to check camera color ect when I was doing production work. Been a real work horse, and has been thrown around for years in and out of my truck, out to venues. I used to shoot a ton of junior hockey games for the coaches and scouts. Out for 6AM games several times a week with my big broadcast camera. Was an easy 100 bucks in my pocket for every game. Would set up this monitor on table on the scaffold I was perched on and sit back and film the game in comfort.
good vid ...
Smashing job sir, well worth the time :-D
Gotta love the analog tv's, long lasting, i like crt's better than modern displays.
I suppose im just a stick in the mud.
I used to have an old phillips G8, never a perfect tv but it lasted, i changed the crt when it got really bad and spent quite a while tweaking the convergence panel for R/G/B convergence.
That was fun lol.
I do too and I have 32", 24"and 12" sanyos, 1995 Samsung which took the place of my flat screen in my bedroom because I had now HDMI stuff to plug in to it. my 1984 tmk 5" w/b TV/radio and finally my 1975 ge hybrid set which still works with my old roku with rf modulator .
Sounds like you love the old sets too :-D
I have a few CRT sets that I am collecting. Still use one on the patio, and one in my transfer room because I am looking at old analog tapes.
I had a nice 34' CRT HDTV set that I gave away, and the person I gave it to threw it out! Would love to have that set now. It had a fantastic picture when displaying HD content.
Sounds like they didnt appreciate it :-(, dont give them anything else, they sound like assholes, shame it sounded like a nice set.
hello sir, I hope all is well with you.
it very nice little TV. I have 6 inches Trinitron one.
I hope you could advise me how to transfer video and stereo sound via UHF within house. the I can use my portable tv.
The only way you will get stereo sound over RF for an analog stsreo TV is with a stereo modulator. Years ago Radio Shack sold such a unit, and it was switchable channel 3 and 4, but it was low power so it had to be connected directly to the TV by cable.What you need to find is a used commercial head end modulator such as a Blonder Tongue CAM-S60 such as the one I picked up in the surplus bin at a local electronics shop for 50.00. See my video of it here.ua-cam.com/video/PONbi6vNpvAT/v-deo.htmlhis unit has a +60dB output, as it was designed to go into an RF combiner, where signals from all the other modulators in a cable head end are mixed together to combine all the channels.With a +60dB output it is more than strong enough to drive an amplifier (transmitter) but of course that would be illegal. Never the less, connecting the output to a home made dipole puts out enough signal that I can receive it throughout my house. As you probably notice that when I tune to channel 12, that is the BT signal, it is perfect, and there is no antenna on the set or on the modulator. My 6 modulators (4 VHF and 2 UHF) are all connected to splitters to combine the signals, and then are split to go to every outlet in the house, as well as the off air signals from my odd air antenna is added. The mixed signals, (off air and internally generated analog) are then spilt and head to 12 outlets throughout the house. So, this signal here, with just an 8`wire hanging off the coax in no way represents what comes out of the modulator, as it is probably closer to 0dB by the time it gets mixed and split. When I first got the unit I connected an antenna, and it reached throughout the house, and well out into the back yard. I have several other commercial modulators that have a good signal output, but none as strong as the CAM-S60. The others are not stereo sound either, except for the weak little Radio shack, which required a 20dB cable amp added to it just so it would be strong enough to get through the cable system in the house!
I have a same set and when it's plugged (tv off) it makes a weird high pitch sound. But it disappears when turned on
Caps on the switch mode power supply.
what is your multimeter
Fluke 12
that's a nice little TV what year is it from
1990
+12voltvids my 12voltvids any chance you could pm me I need to ask a question regarding a trinitron tube replacment.
You can contact me by email from my main page. There is a link to my email.
+12voltvids might as well as you on here.
are you familiar with the sony pvm-2130qm
Tnk u so mathe
This video prooves that if a device seems to have a serious problem, it might be an easy fix! So happened on my JVC HR-7700 VHS. It played in black and white and I thought there were bad caps on the chroma board but after that I noticed I had the Colour/B/W switch set to B/W!... I felt stupid, but I laughed.
That's like the hours I spent on one of my SLHF1000 decks that had no picture chasing through the video circuit only to find the muting transistors "on" and being biased on by the "Black" switch on the front panel. DOH!Yes that repair is up on the channel too, it is a good theory and signal tracing exercise.
+12voltvids I remember the SL-HF1000 repair video and I laughed hard on the picture blanking feature!
I own a Sony Wega KV-24FS120 CRT that I bought from Sears in 2007 and I use in my bedroom. It's an Excellent television. Well, it doesn't have 10 years of use because in the first couple of years I didn't watch it much so I'd say it probably has about 8 years of use but this evening, while I was staring at my phone, I noticed that my TV powered off on its own. I looked down and saw the standby indicator light blinking twice. This is the first time I ever had an issue with this TV in 10 years. I discovered that this means +B over current (OCP) has been detected and "Occurs when an over current on the +B (135V) line is detected by pin 72 of IC001 (A Board)" and could mean "H.OUT (Q505) is shorted. (A Board)". I'm a pretty technical guy, but this is too technical for me. I was actually surprised I found such detailed troubleshooting data. I wouldn't attempt to fix this myself due to this being a CRT TV and the high voltage scenario. I really feel a TV like this is worth keeping since this was the last generation Sony Wega before they started installing digital tuners and one of the few great TVs before LCDs took over. I actually just recently acquired a Roku Express plus that works with CRT TVs and it looks excellent on this television. These TVs are also great for gaming. Is this a major repair or something rather simple? And what do you think the estimated cost would be. I live in Florida. Thank you so much for your time.
Yes the H out may have shorted. That would have to be tested with a meter.
Quie often the solder will crack on the H drive transformer. Loss of drive will cause the H out transistor to short.
12voltvids thank you so much for the prompt reply! I'm surprised I caught you still up. So if this were the scenario, could you estimate how much this repair would cost ( approximately or typically.) I wouldn't attempt myself. I really appreciate the information! I don't even know if this is the case right now since I had it plugged into a Monster surge protector and just now am doing the power cycle test (unplug for a while.) fingers crossed.
When I was in the repair business a repair of the horizontal deflection when only the horizontal output was blown was generally in the 100 range by the time labour and taxes were factored in, but that was early 2000's. If the cause is the flyback, which is also entirely possible, it would drive up the cost.
12voltvids Thank you. This TV is worth saving.
I have the same model TV.
Now that it is 2021, if I get a CRT TV that has no power, I just want to put in a new flyback. But I know to not be lazy and check everything.
Flybacks rarely fail. Certain brands had bad runs of them. Unless it is one that had a manufacture problem it is unlikely it is bad.
@@12voltvids I have seen a lot of blown up flybacks in my time.
Candy Dulfer ;-)
YES! She is one Saxy lady!
She is dutch, and sexy too ;-)
The way she blows that horn......
Insane just a broken weld on the plastic control switch and here I was overthinking the issue. As the old saying K.I.S.S (keep it simple stupid)
sir pls upload in hindi
No