where to find a list of ID codes on recent SMT parts?

Started by Jamie in sci.electronics.design10 years ago 4 replies

Today at my bench, my boss wanted me to look at a simple inverter for a panel touch screen LCD monitor. While collecting information I found...

Today at my bench, my boss wanted me to look at a simple inverter for a panel touch screen LCD monitor. While collecting information I found that the ID codes on the smt did not match what usually go by. For example I had a "2A (underscore V) 3D" on a sot23 transistor. The chart tells me it is a 3906 (pnp) transistor however, I found that it is actually closer to being a fet transi...


Curious Connector - what is it?

Started by Cursitor Doom in sci.electronics.design8 years ago 8 replies

Hi all, Can anyone tell me the name of this type of connector? It's the 5 pin thin film thingy hanging off the bottom left of the chip which...

Hi all, Can anyone tell me the name of this type of connector? It's the 5 pin thin film thingy hanging off the bottom left of the chip which is itself hanging off the bottom left of the device in the first photo on this page: http://www.ebay.co.uk/itm/Black-LCD-Touch-Screen-Display-Digitizer-For- Samsung-S8530-Wave-II-2-/390666094726? pt=UK_Replacement_Parts_Tools&hash=item5af5838886...


OT: Where To Dell Replacement Screen

Started by D from BC in sci.electronics.design12 years ago 18 replies
LCD

I've been clicking around and around.. I can't find out where to get a 24" Dell LCD monitor screen replacement. Per chance anyone know where...

I've been clicking around and around.. I can't find out where to get a 24" Dell LCD monitor screen replacement. Per chance anyone know where to go for Dell parts. Or.. is this going to be one of those things where the replacement part is as expensive as the whole monitor?


Display module for front panel, with softkeys?

Started by Joerg in sci.electronics.design7 years ago 18 replies
LCD

Folks, Looking for a simple control interface. It should ideally be a module that can be screwed or snapped into a front panel cutout and...

Folks, Looking for a simple control interface. It should ideally be a module that can be screwed or snapped into a front panel cutout and contain this: 1. A backlit LCD/TFT/whatever monitor of 1.5" or 2" square. Can also be another rectangular form factor, just not as big as a smart phone if possible. 2. Addressable via SPI or similar. Ideally alphanumeric for fast and lean data trans...


Methods for improving 60kHz RF signal (WWVB)?

Started by Frnak McKenney in sci.electronics.design8 years ago 43 replies
LCD

I have two "atomic clocks": one is a La Crosse LCD unit, the other an "analog" wall clock whose hands are driven by a WWVB-sync...

I have two "atomic clocks": one is a La Crosse LCD unit, the other an "analog" wall clock whose hands are driven by a WWVB-sync 1xAA-powered mechanism. Following the recent "let's screw with everybody's clocks" cycle neither of my "atomic clocks" caught it, and I was reminded that I was Going To Fix This Problem last time. And the time before... After some years I've discovered t


Microscope Review

Started by ehsjr in sci.electronics.design2 years ago 44 replies

The review: Buy...

The review: Buy it! https://www.banggood.com/G600-Digital-1-600X-3_6MP-4_3inch-HD-LCD-Display-Microscope-Continuous- Magnifier-Upgrade-Version-p-1152799.html?gmcCountry=US¤cy=USD&createTmp=1&utm_source=googl eshopping&utm_medium=cpc_elc&utm_content=frank&utm_campaign=pla-mix-us-pc-0626&gclid=EAIaIQobChM Is4aS4eSb6AIVEGKGCh2gIQYAEAQYASABEgJnQfD_BwE&cur_warehouse=CN Or Google Mustool G6


Samsung stay clear of it

Started by Jan Panteltje in sci.electronics.design9 years ago 13 replies

Samsung stay clear of it I have a very expensive Samsung 46 inch 3D LCD. About every thing that can be wrong with it IS wrong. As I mainly use...

Samsung stay clear of it I have a very expensive Samsung 46 inch 3D LCD. About every thing that can be wrong with it IS wrong. As I mainly use it to watch DVD via SCART (at least that quality is acceptable) sort of learn to live with all its limitations, useless remote, bad user interface, no settings saved... no zoom on recordings, the list is endless. Things change, and I decided to tr...


HDMI in US and in EU

Started by Cameo in sci.electronics.design2 years ago 79 replies

On my recent move to Europe I also shipped an older Samsung LCD monitor that I've been using as an external display with my laptop, using HDMI...

On my recent move to Europe I also shipped an older Samsung LCD monitor that I've been using as an external display with my laptop, using HDMI connection. I also used it as a TV display via another HDMI connection to a set top box. It was a very convenient setup, needing only a switch of the video source. I figured I could use that monitor in Europe, as HDMI standards should be the sa...


AD9851 output amplitude

Started by Clifford Heath in sci.electronics.design4 years ago 23 replies

I'm building a sweeper/scalar analyser using an Arduino with touchscreen LCD, AD9851 and AD8307. This is reasonably well-trodden ground (except...

I'm building a sweeper/scalar analyser using an Arduino with touchscreen LCD, AD9851 and AD8307. This is reasonably well-trodden ground (except for the touchscreen). So I'm surprised to find very few comments abut the AD9851 output amplitude dropping off at higher frequencies. I have it programmed to 20mA-ish output current, using a 2k2 resister. I'm using a module that has the same output...


DSC 1832 question

Started by gm in sci.electronics.design7 years ago
LCD

Hi. I hope that someone is working with dsc alarm system. I'm using paradox but i have used dsc before few years. I installed 8 sensors on...

Hi. I hope that someone is working with dsc alarm system. I'm using paradox but i have used dsc before few years. I installed 8 sensors on 1832 panel and i set section 202. First zone is delay and others are instant. The problem is that i see only 6 zones on keypad ( LCD ) and all sensors trigger correctly when they detect movement. The way i test the zones was over *1 zone selection...


too cold

Started by John Larkin in sci.electronics.design3 years ago 31 replies

I put some epoxy on an EPC bga GaN fet to glob-top protect it. And looked for a warm place to put the board to speed up the cure. LED lights,...

I put some epoxy on an EPC bga GaN fet to glob-top protect it. And looked for a warm place to put the board to speed up the cure. LED lights, switching power supplies, LCD scopes... there nothing warm any more. -- John Larkin Highland Technology, Inc picosecond timing precision measurement jlarkin att highlandtechnology dott com http://www.highlandtechnology.com


EL backlighting

Started by bitrex in sci.electronics.design3 years ago 11 replies

EL backlighting for LCD displays looks warm and inviting, particularly a light blue or a white. LED backlighting looks harsh and cheesy,...

EL backlighting for LCD displays looks warm and inviting, particularly a light blue or a white. LED backlighting looks harsh and cheesy, particularly that diffused deep blue driven by a white LED with white pixels that seems really popular on various gear, now. unfortunately the operating lifetime of common EL material is measured in thousands of hours vs. tens of thousands for LEDs....


Fast OCR over raspberry or some other board

Started by gm in sci.electronics.design6 years ago 7 replies
LCD

Hi ! I want to read data from one LCD graphics display ( 2x16 ) and send this data over LAN to one end device. Now, the main problem is...

Hi ! I want to read data from one LCD graphics display ( 2x16 ) and send this data over LAN to one end device. Now, the main problem is OCR data processing because this should be quite fast. The text on the display will stay the same ,most of the time, but when new message arrives, it should be read and processed under 5 seconds. Is something like this doable with some raspberry,...


How to solder this flat cable

Started by pozz in sci.electronics.design6 years ago 10 replies

I have to use a lot of TFT LCDs like...

I have to use a lot of TFT LCDs like this: www.ebay.com/itm/2-4-inch-TFT-LCD-module-320x240-R61505V-touchpad-arduino-AVR-STM32-ILI9320-/121 033845957 I would prefer to use an automatic process to solder the flat cable, but the manufacturer said it is for manual soldering!! Is it true? Isn't there an automatic procedure to solder and mount this display?


Will there be any damage to the computer monitor(LCD) if its screen is positioned horizontally?

Started by Andrea in sci.electronics.design10 years ago 23 replies
LCD

I sometimes like to use the computer while lying on my bed and that means the computer monitor is positioned parallel to the bed(or floor). Will...

I sometimes like to use the computer while lying on my bed and that means the computer monitor is positioned parallel to the bed(or floor). Will such positioning do any damage to the monitor?


Soldering iron tip name

Started by bitrex in sci.electronics.design1 year ago 3 replies

I have a couple Rat Shack 60 watt temp-controlled LCD-display soldering stations: They're actually pretty nice and work well. The irons...

I have a couple Rat Shack 60 watt temp-controlled LCD-display soldering stations: They're actually pretty nice and work well. The irons take a replacement 4-wire heater that's readily available fro Amazon. They take an odd tip though, it's not a Weller external screw-bas


LCD (TFT) Heater for low temperatures

Started by EnigmaPaul in sci.electronics.design6 years ago 8 replies
LCD

Hi Folks - I have an application for low temperature readability of a TFT display. The challenge I'm facing is that the convention heater...

Hi Folks - I have an application for low temperature readability of a TFT display. The challenge I'm facing is that the convention heater options for displays are very expensive for my application (large volume). An ITO heater adds significant cost to the standard display. Given that my end product will be housed in a watertight enclosure of a small volume, it will have some


Ambient Power Module

Started by David White in sci.electronics.design10 years ago 13 replies
LCD

I am trying an experiment using the circuit below to power a 3V LCD digital...

I am trying an experiment using the circuit below to power a 3V LCD digital clock. http://www.4shared.com/photo/WdTFliAW/Ambient-power.html The antenna is connected to one of the purlins of my metal garage. The ground is connected to the 110V wall socket ground pin. However, the caps charge up MUCH better when I simply hold the ground wire from the module in my hand, eg. 3 or 4VDC th...


Proximity sensors

Started by pozzugno in sci.electronics.design7 years ago 14 replies

I need to detect the presence of an object at the front of my PCB with a maximum distance about 10-20cm. The behaviour would be similar to...

I need to detect the presence of an object at the front of my PCB with a maximum distance about 10-20cm. The behaviour would be similar to the proximity sensor found in modern touch-screen smartphones that let the OS switch off LCD backlight and touch detection when the phone is near the face during a voice call. The proximity sensor in the phone detects an object at a maximum distance...


GPS frequency counter + PLL PIC based

Started by Jan Panteltje in sci.electronics.design9 years ago 1 reply

To 'stabilize' the frequency from the 'twisted' wire oscillator as described in previous posts, and to be able to set it via RS232 and read it, I...

To 'stabilize' the frequency from the 'twisted' wire oscillator as described in previous posts, and to be able to set it via RS232 and read it, I wrote some PIC 18F14K22 asm and added a simple 2 line LCD. The first line shows the requested frequency ,as typed in via RS232. The bottom line shows the measured frequency (against a 10 MHz xtal). http://panteltje.com/pub/GPG_freq_counter_PLL_IMG_...