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Sharp LJ640U27

Sharp LJ640U31

Sharp LJ640U32

Sharp LJ640U34

Sharp LJ640U35

Retro fit available for Engel EC88 & Stoll 422 Stoll 440.

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 Last Updated: Thursday September 06, 2012





Capetronics Inc. is a world leader in the repair, replacement and reverse engineering of most Amber (Yellowish) Electroluminescence displays manufactured by Planar, Sharp Electronics and Finlux models (MD512.256, MD640.400) using ABI PCB Diagnostics Test equipment like the Circuit Master 4000M and state of the art X-Ray machine for BGA and PCB rework.  If you have an EL display that is flickering, fading, has missing pixels or is simply dead, contact the Service Department at Capetronics Inc. immediately for a free quote. Capetronics service techs are experts in the process of refurbishing and testing these rugged  displays.

We also upgraded the electronics for the Engel Injection Molding machine that utilizes the EC88 controller. There are the following EL displays: Capetronics C640U31, C640U32, C640U34, C640U35 and soon there will be the Capetronics C640U27.

NEW!!! Deluxe Version of the C640U32 and C640U34 display FAN, DIGITAL HOUR METER, DIP SW settings, 16 pin connector, external screen brightness control, including external screen saver switch. This NEW display replaces OLD OBSOLETE SHARP LJ640U32 and LJ640U34 displays.



Some Sharp LJ Displays we have repaired:

  • Sharp LJ320U27
LJ320U27 Sharp display. We have repaired and supplied many LJ320U27 display for industry. If you have a LJ320U27 that is faulty we suggest you use it for an exchange. Availability on the LJ320U27- hard to find.

  • Sharp LJ512U21
LJ512U21 Sharp display. We have repaired and supplied refurbished LJ512U21 for industry. If you have a LJ512U21 that is faulty we suggest you use it for an exchange with Capetronics. Availability on the Sharp LJ512U21 - hard to find.

  • Sharp LJ512U25
This LJ512U25 was used in many different applications and machines. We have repaired and refurbished many LJ512U25 Sharp displays over the years. If you have damaged units, we suggest you save them. Availability on the LJ512U25 - Hard to find.

  • Sharp LJ512U27
The Sharp LJ512U27 have moved through our doors just as much as the Sharp LJ512U25. If the glass part of the display is in tacked then we are 100% able to repair this Sharp LJ512U27. Availability on the LJ512U27 - hard to find.

  • Sharp LJ512U32
The Sharp LJ512U32 is a display that was also used in many different machines and we have repaired many of these LJ512U32. Availability on the LJ512U32 - Hard to find.  If you do find some displays make sure you ask the company you are purchasing from if they have completely refurbished and checked the display for burn-in and possible electrode damage.  Also make sure there is a warranty on your purchase.

  • Sharp LJ640U27
This is a very popular display and is still used in many different pieces of equipment. The LJ640U27 has been repaired and retrofitted at Capetronics Inc on many occasions. You can still find some used ones around. Not many LJ640U27's out there. If you do find some LJ640U27 displays make sure you ask the company you are purchasing from if they have completely refurbished and checked the display for burn-in and possible electrode damage.  Also make sure there is a warranty on your purchase.

  • Sharp LJ640U31
The LJ640U31is a display that uses 5 VDC and 24 VDC as supply voltage.  These LJ640U31 displays are really robust but because of their age we have seen many with moderate to extreme burn-in images where the ZnS:Mn thin film has been damaged.

  • Sharp LJ640U32
In our experience this is the most repaired display to come through our lab. The LJ640U32 is a 640 line by 400 line resolution. The availability on these LJ640U32 displays is "hard to find" especially in good working condition. We are extremely competent when it comes to the Sharp LJ640U32 displays. We used special test equipment and X-rays to repair and test these displays. Capetronics does have a brand new factory warranty replacement display for the LJ640U34 that is also EL technology.  Part number C640U32

  • Sharp LJ640U34

Still an obsolete LJ640U34 display but a newer EL display made by Sharp. Sharp EL displays were the first commercial EL displays to come onto the market back in 1983. We have repaired many LJ640U34 displays and welcome any that you might have that need repair. If you do find USED LJ640U34 displays make sure that the seller has refurbished them completely and have tested the LJ640U34 for burn-in. There is nothing like having Chinese writing as a burn-in image and we have received many of those. Capetronics does have a brand new factory warranty replacement display for the LJ640U34 that is also EL technology.  Part number C640U34.


  • Sharp LJ640U35
This LJ640U35 display is a display that has been used in quiet a few medical products back in its day. Also a very robust display and if the display controller has a screen saver function this LJ640U35 should still be in operation in most cases. Of course there are heat and time sensitive components that should be replaced. Availability on the LJ640U35 is of course "hard to find"

  • Sharp LJ64ZU49
    Sharp LJ64ZU51
    Sharp LJ64ZU52
We have repaired and refurbished many LJ64ZU49, LJ64ZU5 and LJ64ZU52 displays over the years. These displays are more complex than the LJ640U32, LJ640U34, LJ640U35 and LJ640U27 displays. These displays have something called gray scale option. The availability on these obsolete displays is slim pickings. Capetronics is working on a NEW EL option and that should be out soon.

Customer Testimonials

     We would like to thank the very helpful technicians at Capetronics for the repair of one Planar EL8358MS display and the conversion of the other. Our entire semiconductor facility depended on two machines to operate and both were down. Thank You - J.R USA

     Even though we are thousands of miles away from where Capetronics performs their magic, the service was speedy and the display worked great. - Australia Knitting

     We purchased screens from Capetronics and we are very happy with their service. Even though the screens are not new, they look new and we have never had a problem - Germany AG

     Thank You for your on going service. The OEM wanted $12 000.00 to retro fit our controller because the screen went bad and the technicians at Capetronics got us up and running within 24 hours. - USA Plastics

     A job well done! 24 Hour turn around is hard to find these days - USA Semiconductors Manufacture




Capetronics Inc has a complete kit that will convert EL8358MS to EL640.400 and we have a conversion kit that will convert obsolete Sharp LJ panels like the LJ640U31 LJ640U32, LJ640U34, LJ640U35, LJ640U327 and the LJ640U27 to a currently available Capetronics C640U32,C640U31, C640U34, C640U27 EL Panels.

At present we have successfully converted an EL6648MSS using extra electronics and have also converted an EL6648MS

Engel Display- EC88

The Capetronics Retrofit is here. The perfect replacement Part # C640U32. Lower profile, draws less current than the original, add more years to your Engel injection molding machine, added heat vents and much more robust than your original display. 1 Year Warranty. Fill out a request form or click here for further part information.

Stoll knitting machine screen replacement is here too CMS 420 and CMS422 Stoll, CMS Stoll 440! Contact Capetronics for more information. Nissei screen replacement is ready. Battenfeld screen replacement is ready. Van Dorn screen replacement is ready.


This is the C640U32 for the Engel EC88 Injection Molding Machine.

Capetronics Inc has successfully converted a Sharp LJ640U32 and Sharp LJ640U34. Yes, there is a cheaper more robust solution. You heard it first at the leaders in EL Panels repairs and retrofits. Click HERE to talk to one of our Sales Representatives.




Contact Capetronics for more information on the LJ640U327, LJ640U327R, LJ640U32R, LJ640U31R, LJ640U34R, LJ320U27, LJ640U31, LJ640U32, LJ640U34 or the LJ640U35 and the LJ089MB2S01, LJ512U25, LJ512U27, LJ512U32,  LJ320U27, LJ64ZU51, LJ64ZU52 EL Displays or any other Sharp EL display that you may have. We also repair Planar EL Displays (EL640.200-U5 Assy.) Keep in mind that these obsolete  EL Displays can be repaired by Capetronics in record turn around times if need be. The Sharp  LJ640U27, LJ640U32, Sharp LJ640U31, Sharp LJ640U35, LJ64ZU35 and the Sharp LJ640U34 EL, LJ64ZU48, LJ64ZU51 and LJ64ZU52  displays can also be EVALUATED REPAIRED & SHIPPED OUT. We also perform a voltage calibration on these screens and Capetronics Inc can provide documentation at an extra cost.

As stated before we check our work using X-Ray images in real time, we use thermo-graphics on displays that are under test. We perform Predictive and Preventive Maintenance on every screen that goes through the service department at Capetronics Inc. Please click here for more information regarding Predictive and Preventative Maintenance at Capetronics Inc. 

Please contact us for more information regarding your Sharp LJ64ZU49, LJ64ZU50, LJ64ZU51 LJ64ZU52 LJ640U25 LJ640U27 LJ640U31 LJ640U32 LJ640U34 and LJ640U35 series EL display or Finlux and Planar Displays.

Engel Plastic Injection Molding Machines using the EC88 machine controller use a LJ640U32 panel. We have performed a study and we are able to increase the life span of your EL flat panel just by simple predictive and preventive maintenance. We have loaner screens that we send out so that production is not affected. These are available if they are not being used as a loaner already. Ask us about our preventive maintenance program for your aging EL display manufactured by Sharp and Planar Systems Inc. We have maintenance programs with multi billion dollar companies as well as smaller companies.

Everyone can save money!



  • Hitachi Seiki : LJ640U32 EL screen rebuild refurbish. Contact the Service Department and ask for Colin Campbell.

  • Siemens Pathfinder 4500 on a Van Dorn screen repair or screen retro fit.

  • Hitachi Seiki LJ640U34 EL screen rebuild refurbish.

  • Hitachi Seiki LJ64ZU50 El screen rebuild refurbish and test all 16 grayscales.

  • Hitachi Seiki LJ64ZU51 EL screen rebuild refurbish and test all 16 grayscales.

  • Stoll Knitting Machine Controller display repair. Get a Capetronics Retrofit LJ640U32R for your Stoll.

  • Siemens Pathfinder Van Dorn OP398 control panel can be refurbished, repaired and tested. MD512.256-37C or MD512.256 will be replaced using a Brand NEW EL display. We do not install refurbished or used EL panels. 

  • Nissei injection Molding Machine display repair DONE HERE! Nissei displays are expensive to replace. get it repaired at Capetronics.

  • Battenfeld Injection Molding Machine Display repair or Sharp replacement. Battenfeld 44 ton Unilog controller uses a display that Capetronics can repair or retro fit.

  • Cincinnati Milacron  CAMAC VEL  and CAMAC XTL controller unit. We repair or retro fit this controllers display. EL8358MS with a  EL640.400 C3. This is quiet involved so allow for reasonable lead time. Emergency services available. 

  • Van Dorn Siemens Pathfinder Controller OP 398 OP 400 - We repair this controllers display only.

  • Umac Controller displays repaired and tested. X-Ray, Thermo-graphics, Predictive and Preventive Maintenance performed.
  • Engel Injection Molding Machine with the EC88 Controller that has the LJ640U32 or LJ640U327.

  • Datascope Passport EL display repair. Missing lines or Dead. Please note we can not repair burn-in.

  • On the Datascope Passport EL D we repair the Main Board 0670-00-0688 C because it causes screen damage too. Sometimes the screen damages the controller.

  • Siemens So ISDN Analyzer K1403 7KK1403-0BC11-2A (we repair the EL display)

  • TEAC RD- 180T- We repair the display.

  • Allen Bradley Panel View with EL Displays Amber Screens.

  • Stoll CMS 422 Display repair and retro fit kit available. Stoll 422.6 Knitting machine- Flat bed screen repair.

  • Engel EC88 and Stoll 422 Screen retro fit kit. We have a conversion display that is more robust.

  • Barber Coleman MACO controller display repair. Promax DIMA Injection Molding Machines.


We make sure every pixel is tested and if you have a EL Panel that is a grayscale we will test every grayscale combination too. This is time consuming but has to be done.

What about the old EL8358MS and EL8358HS displays made by Finlux/Planar? Well we perform conversions from the EL8358MS to EL640.400 displays but need your damaged EL8358MS or EL8358HS display as a core exchange.

If you work in a knitting mill or hosiery factory you probably have the following machine: 6CUS which is built by Sangiacomo in Italy. The controller or control unit is called  WEL-650, WEL650 or WEL 650  which is manufactured by a Japanese company called WAC Data Services for a range of knitting machines called 6CUS, 6cus or 6 CUS. Well, these controllers use the Sharp LJ640U31. Capetronics Inc repairs these LJ640U31 displays for a fraction of the cost of a replacement one, if you can find one, so contact the Service department for more information and ask for Colin Campbell.

Also lets not forget the about the Stoll CMS422 Controller with the LJ640U327 display. Get an exchange display from Capetronics Inc. Part# LJ640U32R

Have a look at common problems with these screens and the DO's and DON'Ts guideline when you start to observe these problems.

To view more pictures and information on the LJ640U31, LJ640U32 orLJ640U34  go to our Electronic Service page

You can purchase screens from us (dependent on stock levels). Please understand shipping will be 5 working days in most cases. Contact our sales team for more details!


Schematics & Electronic Circuits

service form

Alternatively you can contact Capetronics Inc via email. Sales Department, Service Department




Other EL Sharp and Planar Displays we can repair and/or Supply

Other models of the EL Sharp and Planar displays that we repair are and some we supply. If yours is in the list we might be able to assist you:

Sharp LJ640U32, Sharp LJ640U31,
Sharp LJ640U35, Sharp LJ640U34 EL Displays
LJ512U05 LJ512U05 LJ512U05
LJ512U2 LJ512U2 LJ512U2
LJ512U21 LJ512U21 LJ512U21
LJ512U25 LJ512U25 LJ512U25
LJ512U25A LJ512U25A LJ512U25A
LJ512U27 LJ512U27 LJ512U27
LJ512U32 LJ512U32 LJ512U32
LJ512U32EL LJ512U32EL
LJ640 LJ640
LJ640-U25 LJ640-U25 LJ640U25
LJ640U LJ640U LJ640U
LJ640U21 LJ640U21 LJ640U21
LJ640U25 LJ640U25 LJ640U25
LJ640U26 LJ640U26 LJ640U26
LJ640U27 LJ640U27 LJ640U27
LJ640U3 LJ640U3 LJ640U3
LJ640U32 LJ640U32 LJ640U32
LJ640U327 LJ640U327 LJ640U327
LJ640U34 LJ640U34 LJ640U34
LJ640U48 LJ640U48 LJ640U48
LJ640U51 LJ640U51 LJ640U51
LJ640U80 LJ640U80 LJ640U80

LJ64A25 LJ64A25 LJ64A25
LJ64AU34 LJ64AU34 LJ64AU34

LJ64EU25 LJ64EU25 LJ64EU25
LJ64EU31 LJ64EU31 LJ64EU31
LJ64EU34 LJ64EU34 LJ64EU34
LJ64H0 LJ64H0 LJ64H0
LJ64H034 LJ64H034 LJ64H034
LJ64H051 LJ64H051 LJ64H051
LJ64H052 LJ64H052 LJ64H052
LJ64H052C LJ64H052C LJ64H052C
LJ64HO34 LJ64HO34 LJ64HO34
LJ64HO52 LJ64HO52 LJ64HO52
LJ64K051 LJ64K051 LJ64K051
LJ64OU25 LJ64OU25 LJ64OU25
LJ64OU26 LJ64OU26 LJ64OU26
LJ64OU34 LJ64OU34 LJ64OU34
LJ64OU36 LJ64OU36 LJ64OU36
LJ64ZU31 LJ64ZU31 LJ64ZU31
LJ64ZU35 LJ64ZU35 LJ64ZU35
LJ64ZU35-B LJ64ZU35-B LJ64ZU35B
LJ64ZU49 LJ64ZU49 LJ64ZU49
LJ64ZU50 LJ64ZU50 LJ64ZU50
LJ64ZU51 LJ64ZU51 LJ64ZU51
LJ64ZU52 LJ64ZU52 LJ64ZU52


Capetronics Inc

1250 Rogers street Suite C


Florida 33756




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