How do I remove the circular fluorescent tube in my Phillips TCG700 light fitting

Are you sure the replacement tube is a good one? If it had a shaking in transit it could be internally damaged.

There is two basic circuits; one uses an electronic inverter to produce the high voltage necessary to ionise the gas in the tube and the other uses a choke and starter.
The lamp has a heating filament and a cathode at each end. The starter closes a series circuit that includes the choke, starter and filaments. The filaments will glow and heat the cathodes for a predetermined time when the starter will break the circuit and the sudden collapse of the magnetic field in the choke produces the high striking voltage necessary to ionise the gas in the tube. Once a current flow through the tube is established the choke limits the peak current.

Troubleshooting a conventional fluorescent lamp circuit usually begins with testing the tube filaments for continuity and working back through the circuit...

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Tube lights?
I guess you mean standard fluorescent lighting - 4ft, 5ft, 6ft, etc...

There are two basic ways to fit these lamps; they can either be fixed by screwing through the light fitting and ceiling material into the ceiling joists, positioning the cable entry point over the cables left after removing the previous fitting.
This type of fixing is ideal for lower ceiling heights.

For high ceilings it is better to suspend the new light fitting from hooks, eyes, chains or wires at a similar height from the floor as a pendant light fitting. The cables in the ceiling can be terminated neatly with a ceiling rose and used to connect the new light fitting via suitable flex...

Using portable power for a fluorescent light - Photo.net Lighting ...

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Jun 13, 2009 - 8 posts - ‎4 authors
so from a 12 volt battery, the inverter will take something like 20 to ... tube is ignited, it has a quite high current consumption (except when ... I considered the initial start up for fluorescent lamps and I'd certainly power this light up slowly! ... devices, and are insanely sensitive to the waveform powering them.

How To Shoot With Fluorescent Tube Lighting - Envato ...

photography.tutsplus.com/.../how-to-shoot-with-fluorescent-tube-lightin...

Sep 23, 2010 - I just mean, you should plug your lights in and let them run for several... For this shot, I simply set up the weight on a neutral-colored platform with a ... The long shape of the fluorescent tube when lighting a long curved ... Turn Captions On ...tungsten that you can get an inverter and power these off batteries.

I assume you're talking about fluorescent tubes. The standard method of replacing these is either to rotate the tube through about 90 degrees, when the tube will come out of the gap at the bottom of the fitting. If there is no gap in the fitting, simply push the tube gently towards one end and the two pins should disengage.
Replacement is the opposite of removal.

Note:
First, corrosive or solubility chemicals will destroy the protective shell of lamps.
Second, the normal ambient temperature is -20 ° C to 40 ° C, if beyond the scope of this provision, it will make adversely affect on the lifespan of the product.
Third, before installing, do not connect high-voltage power supply, if there is damage to the external of lamp, switching to the engineers with qualifications for the repair and replacement; otherwise,the bulbs can not be replaced; take care of the the discharge of fire and shock.
Replacement Procedures Information:
First, the LED tube is generally a double-ended conductive LED lamp containing professionally designed built-in power supply, which can be directly input voltage AC100-240V,it can be mounted directly on a dedicated LED T8 tube light shelves, do not need to add other drives.
Second, the LED tube can directly replace fluorescent tubes, the user can remove the original fluorescent tubes and install LED tube, then double-check the configuration of lighthouse, following the figure A, B, C three installation diagram for installation.
Third, cut off the power for the installation, repair, maintenance and demolition work to avoid accidents.
Installation Guide:
A, connect the power cord on the lighthouse to the external power lines, no need to distinguish neutral wire and line of fire fit with LED lamps , then rotate 90 °,then connect the power to light up.
B, if there is starter on light house , take out the starter, then just repeat the A
For more information about LED tube,just visit www.ledclan.com

Hi Alex...
The most trusted site is amazon (for buying parts and items), so I have found this Amazon com 11w 6500k Tube Fluorescent
take a look, and see which one fits. enjoy

In North-America and Europe the three most major brands are General Electric, Phillips and Sylvania. They actually make the same fluorescent tube with different brand names.

I haven't seen this particular monitor. It may have deeply recessed black screws, or possibly even Torx screws. Try a #2 Phillips and see if it engages firmly. If not, try a T-10. Once you get inside, you will need to remove the power supply and main board to get at the LCD panel. Locate the inverter circuit - it will have two Teflon insulated wires going to (usually) the bottom corners of the panel. It may be part of the power supply board. Every LCD display I've seen so far uses pink colored insulation on those wires. It is possible that the inverter has failed, but most of the time, it's the fluorescent tubes inside the back of the panel.

Getting at the tubes without breaking something is not a trivial task. You will most likely need a #00 Phillips screw to remove the shield metal. Observe anti-static precautions from the moment you open the monitor. Be patient, and keep track of every part or connection you remove. Do not remove the LCD driver circuitry (generally at the top) from the panel. The tube(s) are usually at bottom, enclosed in a sheet metal reflector held in place by the bottom section of the thin metal frame around the panel, just inside a flexible white plastic sheet that covers most of the back of the panel.

You can get new backlight fluorescent tubes from www.lcdparts.com. This website has links to some very helpful pages on repairing LCDs. Note: replacing the tubes involves some rather delicate work. If you are nervous, twitchy or clumsy with fine work, you'd be better off to hire out the job. Be very careful not to rip the rubber insulators on the ends of the tubes when you slide them down the insulated wires to expose the connections to the tubes. You have to attach the wires at just the right spot or you won't be able to fit the insulators back on and get the new tubes to go into the LCD frame - and you can't apply heat to the wires for more than 4 seconds at a time. I've done a number of them successfully, but have occasionally had to try several times to make the connection sufficiently small and short.

The ballast is a device that utilises and expanding/contracting electromagnetic field to create the high voltage which is needed to run fluorescent lights.

It is normally found behind the front cover or reflector part of the fitting and looks like a small box.

Replacement should normally be done by a person qualified in this field.

Although newer fluorescent fixtures have built-in starters or no starters at all, most older lights have an easy-to-change, visible starter. It is a small, silvery cylinder that plugs into one of the tube holders. 1) Shut off the switch. 2) Remove the tube. 3) Give the starter a quarter-turn in a clockwise direction, and pull it out. 4) Plug in new starter, giving it a quarter turn counterclockwise. 5) Replace tube. 6) Turn the switch on.