Forums

How to solder this flat cable

Started by pozz February 4, 2016
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-/121033845957

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?
pozz schrieb:
> 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-/121033845957 > > 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?
This is not what's called a flat cable, and is not designed to be soldered *at all*. Use a matching connector instead. Tilmann
On Thursday, 4 February 2016 07:44:47 UTC, pozz  wrote:
> 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-/121033845957 > > 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?
They are often soldered in production using a hot bar. John
On Thu, 04 Feb 2016 09:06:30 +0100, Tilmann Reh wrote:

> pozz schrieb: >> 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-/121033845957
>> >> 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? > > This is not what's called a flat cable, and is not designed to be > soldered *at all*. > > Use a matching connector instead. > > Tilmann
Exactly. It is meant for a connector insertion, so find the matching connector and solder that onto the location and then the cable gets inserted into that and an additional plus is that the unit becomes fully serviceable/swappable as a result without further soldering. IF insisting on soldering it, "hook up wire" (SPC variety) is what to use and a very fine point iron like a Metcal and momentary contact for each solder joint and the second end already soldered in place too. Very short leads as well. very precarious method choice.
Il 04/02/2016 09:06, Tilmann Reh ha scritto:
> pozz schrieb: >> 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-/121033845957 >> >> 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? > > This is not what's called a flat cable, and is not designed to be > soldered *at all*. > > Use a matching connector instead.
For example, look at this datasheet: https://www.sparkfun.com/datasheets/LCD/ELT240320ATP.pdf It's a 37-pins flat cable. It isn't impossible to find a suitable matching connector among FFC/FPC connectors. Pay attention to the mechanical dimension (there is some space between the edges of the cable and the first external pins). Most of the time this TFT module is mounted on the PCD with the flat cable curved under the module, on the same side of the PCB. http://wiki.iteadstudio.com/2.4_TFT_LCD_Touch_shield In this case, even if it was available a matching connector, it would be impossible to have free space for it.
Il 04/02/2016 09:41, jrwalliker@gmail.com ha scritto:
> On Thursday, 4 February 2016 07:44:47 UTC, pozz wrote: >> 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-/121033845957 >> >> 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? > > They are often soldered in production using a hot bar.
Bingo! Thank you.
Il giorno gioved� 4 febbraio 2016 10:16:46 UTC+1, pozz ha scritto:
> Il 04/02/2016 09:06, Tilmann Reh ha scritto: > > pozz schrieb: > >> 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-/121033845957 > >> > >> 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? > > > > This is not what's called a flat cable, and is not designed to be > > soldered *at all*. > > > > Use a matching connector instead. > > For example, look at this datasheet: > https://www.sparkfun.com/datasheets/LCD/ELT240320ATP.pdf > > It's a 37-pins flat cable. It isn't impossible to find a suitable > matching connector among FFC/FPC connectors. Pay attention to the > mechanical dimension (there is some space between the edges of the cable > and the first external pins).
> In this case, even if it was available a matching connector, it would be > impossible to have free space for it.
Connectors for flex cables are quite small: http://www.digikey.com/product-search/en/connectors-interconnects/ffc-fpc-flat-flexible-connectors/1442849?k=&pv88=48&FV=fff40016%2Cfff80421&mnonly=0&newproducts=0&ColumnSort=0&page=1&stock=1&quantity=0&ptm=0&fid=0&pageSize=25 https://www.digikey.com/Web%20Export/Supplier%20Content/FCI_609/PDF/FCI_Catalog_FlexConnectors.pdf?redirected=1 Bye Jack
Il 04/02/2016 10:38, jack4747@gmail.com ha scritto:
> Il giorno gioved� 4 febbraio 2016 10:16:46 UTC+1, pozz ha scritto: >> Il 04/02/2016 09:06, Tilmann Reh ha scritto: >>> pozz schrieb: >>>> 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-/121033845957 >>>> >>>> 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? >>> >>> This is not what's called a flat cable, and is not designed to be >>> soldered *at all*. >>> >>> Use a matching connector instead. >> >> For example, look at this datasheet: >> https://www.sparkfun.com/datasheets/LCD/ELT240320ATP.pdf >> >> It's a 37-pins flat cable. It isn't impossible to find a suitable >> matching connector among FFC/FPC connectors. Pay attention to the >> mechanical dimension (there is some space between the edges of the cable >> and the first external pins). > >> In this case, even if it was available a matching connector, it would be >> impossible to have free space for it. > > Connectors for flex cables are quite small: > http://www.digikey.com/product-search/en/connectors-interconnects/ffc-fpc-flat-flexible-connectors/1442849?k=&pv88=48&FV=fff40016%2Cfff80421&mnonly=0&newproducts=0&ColumnSort=0&page=1&stock=1&quantity=0&ptm=0&fid=0&pageSize=25 > > https://www.digikey.com/Web%20Export/Supplier%20Content/FCI_609/PDF/FCI_Catalog_FlexConnectors.pdf?redirected=1
Let's try to find a suitable connector for that display. I don't think you will be able.
Il giorno gioved� 4 febbraio 2016 12:33:54 UTC+1, pozz ha scritto:

> >> It's a 37-pins flat cable. It isn't impossible to find a suitable > >> matching connector among FFC/FPC connectors. Pay attention to the > >> mechanical dimension (there is some space between the edges of the cable > >> and the first external pins). > > > >> In this case, even if it was available a matching connector, it would be > >> impossible to have free space for it. > > > > Connectors for flex cables are quite small: > > http://www.digikey.com/product-search/en/connectors-interconnects/ffc-fpc-flat-flexible-connectors/1442849?k=&pv88=48&FV=fff40016%2Cfff80421&mnonly=0&newproducts=0&ColumnSort=0&page=1&stock=1&quantity=0&ptm=0&fid=0&pageSize=25 > > > > https://www.digikey.com/Web%20Export/Supplier%20Content/FCI_609/PDF/FCI_Catalog_FlexConnectors.pdf?redirected=1 > > Let's try to find a suitable connector for that display. I don't think > you will be able.
I'm not going to do your job (if you don't pay me). The cable is standard, ergo you'll find a matching connector. Ask the panel maker for advice if you are too lazy to search. Bye Jack
Il 04/02/2016 14:48, jack4747@gmail.com ha scritto:
> Il giorno gioved� 4 febbraio 2016 12:33:54 UTC+1, pozz ha scritto: > >>>> It's a 37-pins flat cable. It isn't impossible to find a suitable >>>> matching connector among FFC/FPC connectors. Pay attention to the >>>> mechanical dimension (there is some space between the edges of the cable >>>> and the first external pins). >>> >>>> In this case, even if it was available a matching connector, it would be >>>> impossible to have free space for it. >>> >>> Connectors for flex cables are quite small: >>> http://www.digikey.com/product-search/en/connectors-interconnects/ffc-fpc-flat-flexible-connectors/1442849?k=&pv88=48&FV=fff40016%2Cfff80421&mnonly=0&newproducts=0&ColumnSort=0&page=1&stock=1&quantity=0&ptm=0&fid=0&pageSize=25 >>> >>> https://www.digikey.com/Web%20Export/Supplier%20Content/FCI_609/PDF/FCI_Catalog_FlexConnectors.pdf?redirected=1 >> >> Let's try to find a suitable connector for that display. I don't think >> you will be able. > > I'm not going to do your job (if you don't pay me).
I asked you to do the job only because I already tried and I didn't find any.
> The cable is standard, ergo you'll find a matching connector. > Ask the panel maker for advice if you are too lazy to search.
That cable is *not* standard for use with a connector, this is what the panel maker said. It seems it must be soldered directly on the PCB (manually or by hot bar). However I tried to find a suitable standard connector, but the FFC/FPC connectors on the market *are* different.