I opened the unit removed the ribbon cable from the screen to main cpu board got it going, then the ribbon cable fell out so with the unit powered (idiot) I pluged it back in then no power. unit no go anymore, I have blown a fusible link I guess, have 8v on board from batt but no where else. Cant seem to find any fusible links on the board. does anybody know where they are.It would be much appreciated. Regads david
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Think of this: without this "experiment" the TV is (almost) worthless. so what can you lose? bringing it to a repair store will cost something. they need at least 1 hour to do this.
When you think you can manage this, why not try it?
Be care full not to damage the front of the screen. You have to put it face down, but please don't let it rest on the screen, only on the frame. The table must be flat, not anything should lay there, because even a screwdriver lying there, will damage the screen forever.
Then when it is just oxidation in the connectors, make sure the connectors are the same as described on the side. Don't use to much force to remove the flat cables. When it does not go smooth, check if they are blocked with a lever. there are many ways how flat cables are locked in place, but with a flat tool most of the time you can unlock it and after reinserting you can put the lock back.
Never use sharp tools to clean the cables or contacts. Just a dry cloth or cotton swabs. I sometimes use special contact spray for electronic contacts, but I always make sure the cable and contacts are complete dry before I put them back. The fluid will start the oxidation process sooner. I hope you have success.
I even wish you success.
If you want open any electronice think you need to complete tool box with first ad. If you have a complete tool then follow the mention instruction and open the laptop, if you don;t know anything about laptop then don;t try to open it.
Reverse the laptop as shown in the figure. And remove the
battery. Open the the screws from back side for the Wi-Fi card cover,
the modem card cover, the memory card cover, the hard disk cover.
Reverse the laptop as shown in the figure. And remove the battery. Open
the the screws from back side for the Wi-Fi card cover, the modem card
cover, the memory card cover, the hard disk cover.
Take out the Wi-Fi card cover, the memory card cover, the modem card cover, the hard drive cover. Place them at safe place.
You may require to Open the DVD drive with a paper clip. Carefully
take out the DVD drive from the computer. In most of the computer one
screw from the back site of the laptop fix the DVD Drive. So you have to
remove all the screw from the bottom of the laptop.
Insert a thin object under the securing strip(keyboard bezel)
and lift it up. Be careful, it may be very tight(there are no screw at
keyboard bezel in most of the cases)
Take out the securing strip(keyboard bezel).
Now you can see two screws securing the keyboard and these screws are easily visible remove those screws.
careful keyboard is connected with flate ribbon cable to the system
board. Disconnect the keyboard cable from the main board and remove the
Now you can fine one cable(most probably black colors) from LCD and it
is connected to system board. Disconnect the LCD cable from the system
board. Remove the screw connecting the LCD cable to the base. Disconnect the flat LED board cable from the system board.
Carefully lift the display/LCD assembly off the base. The display/top cover assembly - LCD assembly and top cover assembly connected by hinges.
Remove the screw securing the HardDisk holder. Remove the Hard disk holder. Disconnect the left and right speaker cables from the system board.
Now remove five screws securing the heatsink assembly for CPU. And disconnect the fan cable from the main board.
Carefully take out the heat sink off the CPU. And be sure to put heat sink thermal jel /glue when reconnecting the heat sink.
Remove two screws normally at the corner side connecting the system board to the base
Now lift of the system board starting from the left side, be careful with the PC card connector.
Remove the system board off the base.
Modem card is still connected to the system board with screws securing the modem card. If you want you can remove modem card.
Remove the screw securing the optical drive holder.The screw is hidden under the black tape.
Remove the optical drive holder.
Remove four screws securing the card bus connector (PC card connector).
Turn the system board right side up.
Carefully remove the cardbus connector.Unlock the CPU and lift it off the system board.
Turn the system board upside down.Remove two screws securing the video chip fan.
Remove the fan cable on the system board. Remove the video chip fan
White screen with good audio. before buying pcbs & such. try my repair method.. you need to get the lcd unit off the facia & then remove the front lcd metal frame. at the top of the screen you have 2 thin pcbs - chances are that the ribbon cable got at least one track unbonded. first off put some double sided tape under the pcbs to stick then to the frame - that'll take the bend out of those pcbs !! next put cellotape over the ribbon cables. i then cut 6 pieces of sponge 15mm thick & wide as the ribbon cable & glue to the tape on the ribbon at what would be the top edge of the screen (covering the point where ribbon meets pcb).. put the metal frame on top edge first to keep the sponge straight !! put it back together & fire it up. if it still aint working you may need a tcon pcb (little square one at the top). this fixed my 42lg3000 but can work on others with same fault !!
The reason your screens touch pad is not working is because the sensor board is no longer connected to the main panel of the phone, or the ribbon that connects the screen to the main board is faulty.
Try to open up the phone, by unscrewing it open from the back, then locating the ribbon and either try to reconnect it or replace the ribbon with a new one.
Remove your back cover, battery, sim, stylus and memory card. Now
remove the cross head screw, Lever the antenna cover off using a mobile phone opening tool. Now remove the six screws you have access to. Next you need to separate the battery compartment from the rest of
the phone. To do so lever it away using your opening tool. There are
various recesses in the back of the phone do allow you to do this. The volume buttons are stuck to the side of the housing and need to
be carefully peeled away. you can see the volume buttons after
they have been unstuck from the side of the phone. You can now peel the
large brown/orange ribbon away from the phone. It's held in place with
double sided tape. The circuit board which the ribbon is connected to
will come away with it. The on/off switch will be stuck down in the same
way the volume button was and also needs to be peeled away when you
remove the circuit board. The on/off
button will also come loose. Remove the screw, circled bottom left. The
vibrating motor, bottom right, should be levered up so it is
loose. Lift the lower circuit board up and you'll be able to see another ribbon
connector which needs to be disconnected. Again, it attaches like a plug
and socket. Just lever this away from the circuit board to unplug. To
screen is held firmly in place with double sided tape and to remove it
you first need to heat the screen (using a hot air gun or a hair dryer),
then push your opening tool very firmly. You'll then
see the screen raise slightly allowing you to slide something like a
guitar plectrum or credit card behind it. Move your plastic tool all the
way around the edge of the screen to release it. You can now simply lift the
screen away from the housing. You should now have the screen removed. Reverse the whole procedure for
Hi,i think the inner touch pad of the LCD screen is bad and it needs to be replaced,here is a detailed guide to help you disassemble your LG arena;
Tools required: Phillips screwdriver, mobile phone opening tool, plastic tool such as a guitar plectrum or credit card, double sided tape. STEP 1Remove your back cover, battery, sim, memory card etc. Remove the four circled screws.
Run your mobile phone opening tool around the join of the front and back of the phone. Start at the top and then pull the phone apart when you can get enough of a grip. STEP 3 A ribbon connector (circled) needs to be disconnected. It attaches like a plug and socket. Just lever this up to unplug. Next, peel the blue sticker off. STEP 4The circled ribbon connector needs to be disconnected. Just flick the black latch up and pull the orange ribbon away from the circuit board. STEP 5Pull the circuit board towards you. A little force is required but be careful as a cable is still connected to the board and you don't want to damage it. STEP 6on the left is a connector that disconnected when you pulled the circuit board towards you. Remove the screw, in the upper right corner. Disconnect the two ribbons beside the camera. Each attaches like a plug and socket. Just lever each one up to unplug. Lever up the white wire above the battery slot . Remove the blue sticky tape above the white wire. STEP 7Lift away the part above the camera. The ribbon connector needs to be disconnected. Just flick the black latch up and pull the orange ribbon away from the circuit board. STEP 8Pull the circuit board away from the phone. Note that the connectors,disconnect when you remove the circuit board. Lever up the wire at the base of the phone. Remove the 2 screws at the edges of the base . Peel back the silver sticker STEP 9Use your mobile phone opening tool to lever up the metal part bounding the screen . It's stuck down with double sided tape so using a hairdryer to heat the part may make it easier to remove STEP 10Slide something like the edge of a credit card or guitar plectrum under the right edge of the touch screen. Again, this part is held down with double sided tape which may be easier to remove if you heat it up a little first. You should replace the double sided tape when you put the phone back together. STEP 11Lift the touch screen from right to left. STEP 12Lever the two long stoppers out and then use the recesses as levering points to lift the screen out. STEP 13You should now have the LCD screen removed. Reverse the whole procedure for reassembly. The screen costs only 39USD. Thanks and take care
A small #6 torx screw driver is needed. The GPS flap on the back has to be opened. The antenna board has to be disconnected where the ribbon wire, covered with black tape, snaps onto the board. A small blade can flip the cable lock up and the ribbon wire will easily detach. Now you can remove the plastic flap, by pulling back the spring loaded hinge. Be careful not to let the spring fly out! Once the flap is removed, two screws are exposed on the top of the main body, same #6 torx. Once removed, use a plastic pry tool to slowly move along the circumference of the body. Once all the plastic snaps are un-snapped, be very careful when opening the **** shell you've created. You should now see everything you want to mess with.
Lift the antenna and remove the two screws on the back.Carefully remove the antenna cover and with a small jewellers screwdriver move the left spring loaded hinge of the antenna support toward the centre of the support.Carefully remove the support paying attention to the spring loaded hinge as this will jump out and you are likely to lose the spring or the mobile end.Carefully remove the antenna support extending the ribbon connecting cable so the you can now access the two screws holding the case closed.After removing the screws pry open the case paying attention to the two ribbon cables connecting the display to the main board.Flip the securing flaps on the ribbon connectors and remove the ribbon cables. the unit is now open and you can carry on with whatever you needed to do.
Remove battery cover and battery. There are four small screws visible on the rear cover, remove those. Wiggle and distort the back cover a little at the bottom of the phone until it pull partly free from the phone, slide a guitar pick or small flat blade screwdriver between the phone and the rear cover, at the side of the phone, pry this cover off until it snaps free. You will see the main board now. Remove the two screws holding this board on, carefully fold it back towards the battery area. The main ribbon cable is visible now. Remove a green tape on the socket where the ribbon cable joins the board. pull the ribbon away from the board gently and use a screwdriver or something else to cut the adhesive between the board and the cable. The socket has a hinged brown piece closest to where the cable comes in, that flips up to release the cable. The small cable coming from the number pad is removed by gently prying up the rectangular connector from the board. Now with the board free you can remove six screws from the plastic backing plate, and remove that plate from the slider assembly (one of the screws is hidden by a piece of green tape). On the front half of the phone there are six small screws on the rear side (the camera side). Four are visible, two are hidden behind rubber plugs at the top of the phone. Separate the chrome trim from the backing plate by starting at the bottom of the phone, by the key pad, and it may be stuck from a little day-to-day dirt but separate it there, then swing the bottom end out and release the front cover from the two clips that hold the top end together. You now can separate the ribbon cable from the screen assembly in a similar way as you did with the other end of the cable. Reassembly is the reverse of disassembly. Be sure to replace the pieces of tape, and the wire mesh shield attached to them, they serve to prevent radio frequency interference between parts of this device, and between this device and others.
Solution for Pioneer DV-C36 Multi Disk DVD player - tray door will not stay open.
My player would open the disk tray when the open button was press but when the tray was fully open it would retract back into the unit leaving no time to change or load disks. I found a poor connection at the ribbon cable connector was causing this problem. A seven conductor ribbon cable connects the main unit with the travelling tray. A position switch (S21) senses when the tray is fully extended and retracted. On my player pin 1 of the ribbon cable connector on the travelling tray was not making an electrical connection which causes the control system to retract the tray. The fault lies in the connector - the tang was not pressing against the ribbon cable conductor. I was able to desolder the connector and pull the contact out just far enough to reform the tang with fine needle nose pliers. This is very tedious and required an eye loupe for magnification. Tools required: #1 and #2 phillips screwdrivers Soldering and desoldering irons (or other desoldering tools) Fine needle nose pliers.
Remove the tray ribbon cable 1. Remove the cabinet cover - 6 screws. Open the tray. To keep the tray from retracting pull the power cord when the tray is extended. 2. Remove the front bezel from the tray. Gently pry up the bezel by relesing the catches with a small screwdriver. Allow the tray to retract. 3. Remove the front panel - undo large ribbon and wire connections on right, remove screws left and right, release two catch tangs on bottom edge using a small screwdriver on the inside of the unit. 4. Remove the white plastic cover over the laser mechanism ( 2 screws) Remove the disk carrier by removing the center screw. 5. Extend the tray again. When the tray is out the small ribbon cable is visible below the tray. Undo the ribon cable where it attaches to the main unit unit. 6. To slide the tray off the main unit use a small screwdriver to depress the stop catches (2) in the tray. They are molded into the tray. Pull the tray out further then lift up. 7. Flip over the tray and find the small circuit board the ribbon cable goes to. Desolder the motor wires (red and black) and remove the 2 screws holding the circuit board and position switch.
Use a multimeter to confirm there is an open or poor connection in the ribbon cable connector.
Remove the ribon cable and inspect the connector with an eye loupe or other magnification device. On my player contact #1 was not positioned properly to press against the ribbon cable conductor. You can either replace the connector or repair it. Warning: repairing the connector may damage it. To repair the contact desolder the connector from the circuit board. Bend the circuit board prong straight and push it into the body of the connector which will extend the contact out and the contact can be reformed. Be very gentle. Bending the contact may cause it to break.
Reassembly is the reverse. Don't forget to solder the motor wires with the proper polarity. Red and Black are labeled on the circuit board.