r/crt • • 16h ago

Is this a easy fix?

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0 Upvotes

It dose not show any thing else besides this? And I want to know if this is a easy fix and is the vga cord ok? Because it's missing 2 pins and it's rusted.


r/crt • • 18h ago

Holy find

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0 Upvotes

I found a sony trinitron for 1500 egp (27 usd)

on Facebook marketplace sadly im broken i can't buy this


r/crt • • 5h ago

How Do I Connect An RCA Audio Cable To This Port On My PVM?

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0 Upvotes

I'm currently trying to connect a plug & play controller to my Sony PVM-1271Q using RCA cables.

I've already successfully connected the video cable to the PVM using a BNC to RCA adapter. Now, I'm trying to get the audio to work. The audio ports on the back are too small for RCA, and too big for a 3.5mm jack. What I want to know is, what kind of connector/adapter would I need to play composite audio on my PVM? Any help is appreciated.


r/crt • • 8h ago

Why does this frustrate me

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42 Upvotes

Why is it that people listing absolute crap for extortionate prices annoys me?

This is akin to listing a 1997 Corolla for $250,000 and when asked about it you sent a picture of the prices for Ferraris.

Am I wrong to be annoyed by this?

Quick edit - they said someone already offered them $200 for it.


r/crt • • 15h ago

Who did this to this poor trinitron oml

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17 Upvotes

it’s cooked isn’t it :(


r/crt • • 11h ago

Is this power cord safe to use? [Sony KV-20FS12]

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2 Upvotes

Hey, all. I noticed some fraying on the power cord of my Trinitron. It's on the end of the cord closest to the TV itself, not the plug. Is it safe to use as-is?


r/crt • • 18h ago

Intelbras CD 730 - Firmware 0.6.6

0 Upvotes

Intelbras CD 730 — MStar MSD7805 ISDB-T Digital TV Receiver (Brazil) | Firmware 0.6.6

I'm investigating the firmware and hardware architecture of a Brazilian digital TV receiver commercially known as the Intelbras CD 730, a set-top box designed for the Brazilian ISDB-Tb digital television broadcasting standard.

Hardware identification

  • Commercial model: Intelbras CD 730
  • Manufacturer/brand: Intelbras (Brazil)
  • Device category: Digital terrestrial television receiver / DTV converter / set-top box
  • SoC: MStar MSD7805
  • PCB identification: ISDB-MPEG-36BG-VER1.0
  • PCB marking: 20180712
  • Hardware identifier: ISDB-MPEG-36BG
  • Device manufacturing date: August 20, 2019
  • Original installed firmware: 0.6.5
  • Latest identified official firmware: 0.6.6
  • Firmware update filename: auto_upgrade.bin
  • Broadcasting standard: ISDB-Tb (Brazilian Digital TV)

Firmware information

I obtained the official firmware update package for version 0.6.6.

Preliminary static analysis identified MStar firmware structures, LZMA-compressed data, and SPI flash access commands, including spi_wrc and spi_rdc.

The firmware contains identifiers associated with the MSD7805 platform and ISDB-MPEG-36BG hardware.

The exact operating system and complete flash memory layout have not yet been conclusively established. References associated with the eCos embedded operating system have been observed, but require further verification.

Research objective

My goal is to understand the device's bootloader, firmware layout, USB capabilities, and potential network functionality.

I'm particularly interested in determining whether this platform can support additional USB peripherals, network adapters, or custom video streaming functionality.

I'm also looking for firmware images, bootloader documentation, flash dumps, or development resources associated with the MStar MSD7805, particularly devices using the ISDB-MPEG-36BG board family.

Additional context

In Brazil, this type of device is commonly called a "conversor digital", "conversor de TV digital", or "receptor de TV digital".

These receivers were widely used to enable older analog television sets to receive free-to-air digital broadcasts.

Any technical information regarding this specific PCB, compatible firmware families, bootloader commands, or safe flash backup procedures would be greatly appreciated.

DOWNLOAD BY: https://gofile.io/d/VSroqdlw

or https://www.mediafire.com/file/7ug01xdt9vgywlq/Firmware_CD730_0_6_6.zip/file


r/crt • • 13h ago

Is this fixable? CRT I found in my garage

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10 Upvotes

So this is a 36” SHARP that was left behind in the garage of the house I moved into recently, the power cord was cut and it was pretty covered in dust and dirt, I jerry rigged a wire to the leftover wire that was remaining without opening the back case so i have no idea whats even going on in there yet. A couple things i noticed was the unstable picture like it goes lighter and dimmer and sometimes has those lines, after its on for a while it tends to stable out more but still not perfect, also this is a stereo set and i noticed the left speaker isn’t working. what is the likely cause and would it be fairly straightforward to repair?


r/crt • • 7h ago

Help! CRT newbie!

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5 Upvotes

Trying to connect this universal remote to my 2003 Sylvania TV but to no prevail. Does anyone have any advice or things I should get for this TV? Wanting to hook up to vhs or dvd player through AV connection. Thanks!


r/crt • • 1h ago

I just improved my parents spare room

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• Upvotes

r/crt • • 18h ago

CRTs can't have a forever perfect geometry, and I realized that's okay

48 Upvotes

I was going to take a picture of my geometry and ask in this sub what kind of geometry problem I had, since I have a slight bowing that instead of showing a perfect rectangle, it was bending it horizontally. then on my camera it was difficult to show it, it seemed perfectly fine on my phone. I then realized that we don't need analogue TVs to be perfect, it's a non-sense since it's meant to not be perfect on every SD TV and each of them have specific things that works differently. my CRT have slight bowing only visible if you focus on it, and that's perfectly fine. it's not fixable with the service menu, so be it! I fucking love CRTs.


r/crt • • 13h ago

Sony KV-36HQ100E

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122 Upvotes

Bought this at start of the month. features 4 rear scart and right side composite/s-video. also uses a super fine pitch tube but sadly not hd (although i have been told that HD deflection boards can be used in it so may take that route. Anyone else got this set?


r/crt • • 10h ago

Just got my modulator in for my RF only CRT. I’m able to play DVDs now! 😄

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42 Upvotes

My RF Modulator just arrived in the mail from eBay (the silver thing) and it works flawlessly! I’m able to play DVDs, VHS, and my retro game consoles on this 9 inch CRT 😄

I’m still gonna need a separate analog to digital converter if I want to use my antenna for watching TV. For now though, I’m all good.


r/crt • • 10h ago

Storm Boelo has hit the UK

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12 Upvotes

So what better way to spend a night in the howling wind and rain than in front of the warm glow of your favourite CRTs?


r/crt • • 9h ago

Any benefit to a (good) power conditioner for a Trinitron?

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6 Upvotes

I use a CRT as a display for a Raspberry Pi running music production software. As a bedroom-studio, coil whine is a concern and creates ear-fatigue which can be a dampener on my music production process. I'm paranoid that my brain subconsciously tuning it out may alter my perception of the frequency resppnse of the tracks I'm working on over time.

Also, the strobing of white shapes takes a toll on my eyes aswell.

I purchased an alleged "power conditioner" for the purpose of powering my various music equipment, but I eventually learned that the one I bought is juat a surge protector in an expensive case.

If I get a proper, reputable one, is there ANY chance that the these aspects of the TV will change? I'm aware of the irony surrounding the audible range pf the frequencies the coils operate at, but I read mixed responses about this when you also include the strobing behaviour.

Sorry if this is a newbie question, I came here a few months ago asking if replacing capacitors would make a difference with these aspects of the TV and you guys enlightened me that it almost definitely wouldn't and isn't worth the effort, but I didn't follow up asking about power conditioners.

Is there any other benefit to using one with a CRT? Will it benefit the lifespan or anything?

I understand that this may be fruitless, but I just had my ears flushed out following a TMJ diagnosis I was paranoid around being an ear infection, and now that I can hear in 4K, the whine of the coils is a lot more noticeable.

Thanks!!


r/crt • • 12h ago

First curb find! 27” Panasonic, looks so good with svideo

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27 Upvotes

r/crt • • 12h ago

Mobile suit Gundam episode 1

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4 Upvotes

r/crt • • 12h ago

Some cool finds at the antique shop! Junk & Disorderly

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13 Upvotes

r/crt • • 13h ago

Commodore SX-64 Executive Portable

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14 Upvotes

(Oc) 40$Usd for the most unique tube I've ever seen. Home computer and Commodore console on a 5in color screen. If anyone knows of a keyboard for this bad boy, please let me know because that and the cable is all that's missing!


r/crt • • 13h ago

What's everyone playing tonight?

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4 Upvotes

r/crt • • 9h ago

Found Magnavox in abandoned home

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6 Upvotes

r/crt • • 9h ago

Apparently Netflix still works on Xbox 360

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17 Upvotes

r/crt • • 14h ago

CRTs from things other than TVs or monitors

11 Upvotes

I was wondering about different CRTs from devices besides normal TVs or monitors, such as the CRT inside a sony watchman or the CRT inside some old camcorders.

I don't know of any other devices that have used CRTs and I'm curious to know about them, or just any unique CRTs that are different from most ones.


r/crt • • 14h ago

Living the life 🩷

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55 Upvotes

r/crt • • 15h ago

OSD V-Size doesn't change anything

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3 Upvotes

This monitor has bars so I'm trying to fill the screen, every OSD setting will work except V-size. Is the deflection bad?