Tape automated bonding (TAB) faults
A TAB fault is caused by a connection failure from the TAB that connects the transparent electrode layers to the LCD.
TAB is one of several methods employed in the LCD display-manufacturing process to electrically connect hundreds of signal paths going to the rows and columns of electrodes in layer 6 (the transparent electrode layer) in the LCD display to the video ICs on the driver board that drives these electrodes.
If an LCD display is subjected to physical shock, this could cause one or more TAB connections to fail inside the display. This failure is often caused by horizontally flexing the chassis or simple failure of the adhesive holding the TAB against the glass. TAB faults require replacement of the LCD display module itself in some cases, but mainly just the ribbon is required. If these connections were to fail, the effect would be that an entire row or column of pixels would fail to activate. This causes a horizontal or vertical black line to appear on the display while the rest of the display would appear normal. The horizontal failure runs from edge-to-edge; the vertical failure runs from top-to-bottom.
Common symptoms of pixels error are:
Single pixels or complete lines of pixels have disappeared.
MID, DIS and displays are difficult or impossible to read.
Display returns to complete working order once cluster hits high or low temperatures.
If you pay your local garage or dealer a visit, you'll be led to believe there is no professional way of repair and a replacement instrument cluster, MID or DIS is required. Trijon Auto are here to save you €€€€...
Main dealer prices start at €500 to €1500 + VAT + fitting + coding. This main dealer charge can easily reach a bill of over €1800. The new replacement unit will also only come with a 12-month warranty and no guarantee that the problem will not return. New instrument cluster prices depend on model of vehicle and age.
You should never opt into buying a secondhand instrument cluster. These clusters will need to be coded to your vehicle to work correctly and warranties are short, normally 30 days. This alternative can end up costing more than anticipated and be a waste of time.
Trijon Auto offer a complete rebuild of all LCD screens on most makes and models of instrument clusters, MID and DIS displays at a fraction of the main dealer replacement costs. We are one of the only company in Ireland who have invested in brand new much higher quality LCD screens and parts to solve the pixel defect. All repairs carry a warranty from 2 to 5 years and are designed to last the life of the vehicle.
Our repair prices start from as little as €115 plus return carriage.
Trijon Auto LCD Replacement and Pixel Repair service covers the following manufacturers so far.
Audi - Audi TT, A2, A3, A4, A5, A6, A8 & Q7 LCD Display Pixel Repair (1995-2008)
BMW - BMW E39-5S, E38 7-S & E53 X5 LCD Display Pixel Repair (1996-2007)
BMW - BMW E39-5S, E38 7-S & E53 X5 Radio and OBC Pixel Repair (1996-2007)
Citreon - Citroen C5 and Xsara Sagem Radio and OBC Pixel Repair (1999-2005)
Land Rover - Land Rover Range Rover LCD Display Pixel Repair (2002-2006)
Mercedes Benz - Mercedes Benz W210, W202, W208, E C & CLK LCD Display Pixel Repair (1995-2003)
Mercedes Benz - Mercedes Benz A Class W168 LCD Display Pixel Repair (1999-2004)
Mercedes Benz - Mercedes Benz W203 C Classs LCD Display Pixel Repair (2001-2006)
Mercedes Benz - Mercedes Benz A Class W169 LCD Display Pixel Repair (2004+)
Peugeot - Peugeot 206 Jaeger Radio and OBC Pixel Repair (1998-2006)
Peugeot - Peugeot 307 Jaeger Radio and OBC Pixel Repair (1999-2005)
Peugeot - Peugeot 406 Sagem Radio and OBC Pixel Repair (1998-2006)
Porsche - Porsche 996 & Boxster LCD Display Pixel Repair (1996-2001)
SAAB - Saab 93-95 SID Radio and OBC Pixel Repair
Seat - Seat Alhambra LCD Display Pixel Repair (2001-2008)
Volkswagen - Volkswagen Golf Mk5, Passat & Touran LCD Display Pixel Repair (2004-2006)
Volkswagen - Volkswagen Fox LCD Display Pixel Repair (2006)
To book your Pixel Repair or if just a trade enquiry, please contact us HERE
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