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Detects a faulty board in seconds
Tests the power and main boards away from the chassis

The pocket-sized TV Diagnostika is an easy-to-use diagnostic tool for fluorescent-lit as well as LED-lit televisions. For LCD receivers with fatal faults such as ‘dead set’, ‘stuck on standby’, ‘no video’ and ‘flashing red light’, TV Diagnostika provides positive identification of the faulty board in seconds. With Diagnostika, the days of ordering the wrong panels are over. TV Diagnostika will thus pay for itself in one repair job or two at most.

For component-level diagnostics, TV Diagnostika provides full access to TV’s principal boards allowing an engineer to fully test and repair them independently – on their own, away from the TV receiver.

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TV Diagnostika console and adaptor board module

How it works

TV Diagnostika is a simulator. It generates the appropriate control signals to the power, main and inverter boards and tests their responses. By utilising the standby voltage, TV Diagnostika does not require a battery or an external DC source of any kind.

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Adaptor board for current Samsung models

Access to the TV receiver is via an adaptor board module which connects the TV Diagnostika console to the power board on the one side and the main board on the other. Each TV brand (Samsung, LG, Philips, etc.) has its own adaptor module to cover current models.

Where to use it

TV Diagnostika works equally well in two different contexts:
- in situ – to find a faulty board and carry out initial tests on a home visit; or
- on the bench – where a stand-alone power board, or a main board may be tested and repaired on a workbench, away from the TV set with unrestricted and easy access to all components.

  1. In-situ – how to find a faulty board in seconds

Remove the back of the TV, unplug the power-main cable(s) from the main board and connect it to the ‘power board’ header on the adaptor module. Connect the adaptor module to the TV Diagnostika console. By operating the switches on the TV Diagnostika console, the faulty board may be identified within seconds.

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In-situ testing for a faulty board

  1. In-situ initial tests on a power board

With the power board connected to the TV Diagnostika console as shown above, initial tests on the power supply and the inverter/converter sections may be carried in situ, tests that are not possible to perform without Diagnostika. However, it is far more productive and convenient to test the board to components-level on a bench, on its own away from the confines of the TV chassis. This is possible with TV Diagnostika.

In-situ initial tests on a main board

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 In-situ initial testing a main board

If the power board is functioning properly, the main board must be at fault. In-situ initial tests may be carried out on the main board, tests that are only possible to perform because of Diagnostika. Using a replica power-main cable(s), connect the main board to the ‘main board’ header on the adaptor module. This will feed DC power to the main board allowing the main board to be tested. However, it is more fruitful and efficient in time and space if component-level testing of the main board is carried out independently on a work bench. This is possible with TV Diagnostika.

On the bench - How to test a stand-alone power board

For the first time, the power unit of an LCD TV receiver may be tested separately and independently, away from the confines of the television frame. This provides engineers easy access to both sides of the power board, something made difficult when the board is screwed to the TV chassis. If the power board was of the integrated type with an on-board inverter/converter, TV Diagnostika may be used to test the inverter part of the IP board in the case of a fluorescent tube-lit screen or the converter part in the case of an LED-lit screen.

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On-the-bench testing a power board

Not only can component-level diagnosis take place away from the confines of the television set, but – and more importantly, once suspected components have been replaced, confirmation that the power unit is functioning properly can be made without having to return to the TV set, screw the power board back onto the chassis and turn the TV on to see if it works.

On the bench - How to test a stand-alone main board

For the first time, the main board of an LCD TV receiver may be tested separately and independently, away from the confines of the television frame. TV Diagnostika provides engineers with easy access to both sides of the main board, something made difficult when the board is screwed to the TV Chassis.

On-the-bench testing a main board