LCD Monitor repair

Started by Anonymous in sci.electronics.design4 years ago
LCD

finally a sure and guarantee way to learn the secrets of LCD Monitor repair= . Do you know that understanding of how each sections in LCD Monitor...

finally a sure and guarantee way to learn the secrets of LCD Monitor repair= . Do you know that understanding of how each sections in LCD Monitor work i= s the key of success in LCD Monitor troubleshooting? Yes, if you ignore thi= s facts, then chances for you to successfully repaired a LCD Monitor will b= e very slim http://sh.st/OtKh


LCD Monitor repair

Started by Anonymous in sci.electronics.design4 years ago
LCD

finally a sure and guarantee way to learn the secrets of LCD Monitor repair= . Do you know that understanding of how each sections in LCD Monitor...

finally a sure and guarantee way to learn the secrets of LCD Monitor repair= . Do you know that understanding of how each sections in LCD Monitor work i= s the key of success in LCD Monitor troubleshooting? Yes, if you ignore thi= s facts, then chances for you to successfully repaired a LCD Monitor will b= e very slim http://gostman2006.jestinewilliamlcd.click2sell.eu


LCD conductive tape

Started by Mark in sci.electronics.design7 years ago 19 replies
LCD

I'm trying to repair a cheap alarm clock with an LCD display. (I know this isn't worth my time but at this point I'm more curious...) A few...

I'm trying to repair a cheap alarm clock with an LCD display. (I know this isn't worth my time but at this point I'm more curious...) A few segments of the LCD are not working and when I press the conductive tape that connects the LCD to the board, it starts to work. OK a bad connection. But am trying to buy a piece of this conductive tape and I can't find it anywhere even describe...


Do you bother with reading from the LCD (HD44780)?

Started by _ in sci.electronics.design10 years ago 22 replies
LCD

I have an extra pin; the R/W pin of the LCD is tied low so output always works - but I could use that pin to control the line. Does anyone...

I have an extra pin; the R/W pin of the LCD is tied low so output always works - but I could use that pin to control the line. Does anyone read from the LCD; and if so, why?


PIC16F628 L/C METER, LCD Display?

Started by Hammy in sci.electronics.design8 years ago 3 replies
LCD

I'm thinking of building this simple L/C meter. http://www.marc.org.au/ I've never used an LCD with a PIC before, so for the display LCD...

I'm thinking of building this simple L/C meter. http://www.marc.org.au/ I've never used an LCD with a PIC before, so for the display LCD what should I be looking for? They are using a 16 x 2 LCD AMPIRE AC-162D for the L/C meter. AMPIRE Data sheet http://home.exetel.com.au/marknac/PDFs/ampire-display-specs-AC162D.pdf Would this be a suitable substitute? LUMEX - LCM-S01602DTR/C -...


3.3 V vs. PCF8814-based "Nokia 1100" LCD?

Started by Ivan Shmakov in sci.electronics.design4 years ago
LCD

I've got a "Nokia 1100" LCD, which (unless I be mistaken) is based on PCF8814, whose digital I/O range is (1.7 .. 3.3) V. The question is:...

I've got a "Nokia 1100" LCD, which (unless I be mistaken) is based on PCF8814, whose digital I/O range is (1.7 .. 3.3) V. The question is: is there an easy and safe way to connect it to an otherwise 3.3 V (+/- some) circuit (as in: one interfacing an SD card, or having an Arduino as its core, etc.)? (Will a few diodes suffice, for instance?) Also, the pinout for the LCD (e. g., ...


Can I change the viewing angle of an LCD display?

Started by mike in sci.electronics.design7 years ago 13 replies

I have a bunch of battery-operated digital clocks with LCD displays. They all look good from above, but when viewed from below, the display...

I have a bunch of battery-operated digital clocks with LCD displays. They all look good from above, but when viewed from below, the display looks blank. I want to be able to view it from bed when it's on the night stand. If memory serves, the contrast input on an LCD display changes the viewing angle. I've not taken 'em apart, but I fully expect to find a glob of epoxy covering an un...


Insiders knowledge; Custom LCD construction

Started by Klaus Kragelund in sci.electronics.design4 years ago 1 reply
LCD

Hi I am purchasing a custom LCD (FSTN or TFT), but I am running into limited knowledge of the actual design and production setup of LCD and the...

Hi I am purchasing a custom LCD (FSTN or TFT), but I am running into limited knowledge of the actual design and production setup of LCD and the constraints involved For example, how is the routing from the COG controller to the crystals and what affects the form ratio of a display. Active area versus Visible Area and border outline So, anyone know of a reference for this. A book perhaps c...


LCD with large active area versus outer dimensions

Started by Klaus Kragelund in sci.electronics.design5 years ago 7 replies
LCD

Hi We have been getting some information on a FSTN LCD display we need, rarthe= r small, 20mm x 30mm. It is for an industrial product with...

Hi We have been getting some information on a FSTN LCD display we need, rarthe= r small, 20mm x 30mm. It is for an industrial product with 10years lifetime The problem is when we specify a resolution of 64x64 pixels, the Y pixels a= re access by the LCD controller by routing on either side of the display do= ts (on the left and right side). But, this routing occupies space, so havin= g a...


HW for reading OCR data

Started by gm in sci.electronics.design2 years ago 21 replies
LCD

Hi. I have one problem. I need to read data from one LCD keypad but the problem is that i can not put camera in front of lcd keypad because...

Hi. I have one problem. I need to read data from one LCD keypad but the problem is that i can not put camera in front of lcd keypad because end user will not see what is done... Is there any way to put somekind of transparent "part" to LCD , so i can pickup data and pass it to camera or serial port ? GM


Force LCD monitor "white"/"black"

Started by Don Y in sci.electronics.design3 years ago 34 replies
LCD

Hi, Anyone know how the drive to an LCD panel works? Specifically, how one can force the display to appear "all white" or "all black"...

Hi, Anyone know how the drive to an LCD panel works? Specifically, how one can force the display to appear "all white" or "all black" WITHOUT relying on the electronics already present in the monitor? E.g., imagine having *just* the LCD panel and being able to operate it as a "light gate" (full on, full off). Thx!


Tablet LCD on raspberry

Started by gm in sci.electronics.design3 years ago 5 replies
LCD

Hi. Does someone knows if there is any way to connect some tablet touch screen to raspberry model B LCD connector ? I dont want to conect...

Hi. Does someone knows if there is any way to connect some tablet touch screen to raspberry model B LCD connector ? I dont want to conect it over hdmi. I was planning to connect it directly to board. Something like this but with tablet. http://www.ebay.com/itm/7-800x480-LCD-Screen-Display-Monitor-for-Raspberry-Pi-B-w-HDMI-VGA-AV-Dr iver-/301271608133 I have few used tablets and i ha


Bleeding LCDs

Started by ehsjr in sci.electronics.design8 years ago 7 replies
LCD

I've got a couple of bleeding LCD's. No replacements available, so it's gonna cost me ~ $1K to replace the equipment. One's in an _old_ Fluke...

I've got a couple of bleeding LCD's. No replacements available, so it's gonna cost me ~ $1K to replace the equipment. One's in an _old_ Fluke DMM, so that's not all bad, I get to buy a new meter. :-) Ok, now to the questions: What's the average life of a properly used LCD? What causes the bleeding? Does the glass de-laminate or something? Ed


how to convert lcd display to led display of pannel meter

Started by sunn...@555 in sci.electronics.design7 years ago 2 replies

i have dpm with lcd display so i have to convert this lcd to led display.

i have dpm with lcd display so i have to convert this lcd to led display.


HD44780 problem

Started by Marco Trapanese in sci.electronics.design9 years ago 7 replies

Hello I'm puzzling over my own HD44780 library for Luminary ARM. I ported the code from a working library I use with AVR. I see some...

Hello I'm puzzling over my own HD44780 library for Luminary ARM. I ported the code from a working library I use with AVR. I see some activity with the oscilloscope and the signals seems ok. The LCD replies as expected. But I can see nothing on the display. I remember I should see the pixels on the LCD uninitialized after power up ii the contrast voltage is good. Actually, I can't se...


Repaired my Samsung LCD monitor.

Started by Jan Panteltje in sci.electronics.design6 years ago 3 replies

After replacing those electrolytes in the switchmode power supply the picture is also much sharper. I suspect the PLL in the electronics to be...

After replacing those electrolytes in the switchmode power supply the picture is also much sharper. I suspect the PLL in the electronics to be more stable due to less ripple. But more amazingly, that what I thought was burn-in of the LCD, vertical stripes strongest at the left side, something I could never get rid of with an anti burn in program, is almost gone. Could have been modulation of...


Tiny touch screen LCD?

Started by David L. Jones in sci.electronics.design9 years ago 6 replies
LCD

I'm after a TINY touch screen (mono) LCD display. Target module dimensions are 45mm x 35mm (max) Don't care too much about exact...

I'm after a TINY touch screen (mono) LCD display. Target module dimensions are 45mm x 35mm (max) Don't care too much about exact resolution. Does such a thing exist that's relatively easy to get? Any ideas? Thanks Dave.


LCD cleaning

Started by Don Y in sci.electronics.design2 years ago 66 replies
LCD

Hi, I've always advocated "100 proof"[1] alcohol and a microfiber rag to clean LCD monitors. Is there a commercial product (that...

Hi, I've always advocated "100 proof"[1] alcohol and a microfiber rag to clean LCD monitors. Is there a commercial product (that doesn't have silly additives, dyes, etc.) that I can recommend to a friend for the same purpose (albeit much more expensive)? Thx, --don [1] Of course, you *make* this from distilled water and isopropyl alcohol -- save the "good stuff" for drinking! :> ...


LCD display repair?

Started by DaveC in sci.electronics.design9 years ago 7 replies
LCD

Backlit Hitachi monochrome LCD display has dark horizontal lines obscuring much of the displayed text. I understand that frequently this is...

Backlit Hitachi monochrome LCD display has dark horizontal lines obscuring much of the displayed text. I understand that frequently this is due to poor contact between the printed(?) contacts on the display glass and the conductive rubber(?) connection blocks. Is this something that can be repaired? Disassembled & cleaned? Thanks, -- DaveC me@bogusdomain.net This is an inval...


Fixing a Maxent MX-26x3 LCD TV

Started by behi...@xemaps.com in sci.electronics.design8 years ago 3 replies

I have a non-working Maxent MX26X3 LCD TV/monitor. Immediately upon powerup, it will generate anomalous vertical multi-colored lines...

I have a non-working Maxent MX26X3 LCD TV/monitor. Immediately upon powerup, it will generate anomalous vertical multi-colored lines throughout the entire screen with a blue background. I've read about two known solutions, and I think both are related to one root cause. On FixYa, people have reported favorably changing the behavior of the TV by twisting a green heatsink that sits on...