An old display at undisclosed location.
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Re: Pics
very nice, seperate transformer, trippler & focus block - is it a Trinitron tube?? -
Re: Pics
Looks like old military stuff....<--- Badcaps.net Founder
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Re: Pics
Hitachi tube, Aydin controls / display circa 1988. Industrial facility.Comment
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Re: Pics
process monitors.
so it's a power station or chemical processing plant??Comment
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I thought it was Sony (Trinitron) as well, given the built quality (particularly the various boards and cap choices).... that is, before WXP wrote what it is.
But yes, Hitachi is the other one that makes nice CRTs like that. My Hitachi CM814 CRT monitor looks like that inside as well. Absolutely beautiful work with no corners cut.
Does this CRT still work, by the way?
I didn't get much what's going on from the topic title and short description in the first post.Last edited by momaka; 06-12-2018, 10:04 PM.Comment
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A good quality built and nice pictures .. I still have many resistances like those 820 ohms 10 W ..
Who knows ...Comment
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The listed malfunction was "dim picture". Some of these units were used in minor process control and would stay on for years. They are probably going to the scrap yard soon.Comment
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Ah, I see.
Perhaps try turning up the screen (G2) voltage? It might help them work for another few years, before the tube phosphor gets completely worn out.
If not, save the PCBs! I see lots of good components there. Even the caps - as old and tired as they may be - could still get something going with completely trashed cheapo China caps. On that note, I would trust these old caps more than I trust new garbage cheapo caps.Comment
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Can someone please direct me to the location of the BIOS? I've attached an image of the motherboard. Would like someone to point out the location or if I do indeed need to pull the motherboard if it's on the other side. Thank you.... -
it was working yesterday, i opened it up and saw this mess. boardview and schematic uploaded for convenience.
PU200
pin 17 vreg5 = 0v ~ solder joint was corroded and flicked right off with my probe, was able to get clean and reflow, rest look fine.
pin 8 vreg3 = 0v
pin 13 en = .2v
pin 1,6 entrip1,2 = 0v
b+ and b++ = 19.5v
+5valw = 0v & 25+ohm to ground
+3valwp = 0v & 25+ohm to ground
i cleaned the board up just a little and can get more pics.
where should i be looking? thx... -
pls help guys..This laptop powers up but nothing on screen..have tried different ram ..it may be the bios? can someone point out the location of the chip pls.?... -
Hello, one of the vrams of my palit rtx 3060 model graphics card is showing as faulty. I will replace the faulty vram with a new one, but I could not find out the locations of the vrams. Does anyone know the location map such as a0, a1, b0, b1?
mats version 455.127. Testing GA104 with 20 MB of memory starting with 0 MB.
Memory Errors on
Read Error Count: 0
Write Error Count: 410022
Unknown Error Count: 0
=== MEMORY ERRORS BY SUBPARTITION ===
SUBPART READ ERRORS WRITE ERRORS UNKNOWN ERRS
------- ----------- ------------ ------------... -
My pc updated bios through Windows Update and I was greeted with BLACK SCREEN WITH CPU FAN MAX SPEED. I don't think there is even a screen signal, because it triggers my monitor for a couple seconds and then the monitor turns off. I tried the other outputs as well.- I tried clearing bios, resetting bios, removed the CMOS battery, removed m.2 ssd, wifi, and ram. Still black screen with CPU fan blasting.
- I tried using the Lenovo BIOS CD and BIOS USB, but neither worked. At least I couldn't get anything to work.
- I could only locate two chips that look like bios chips. Could someone verify this
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