Dell Support > Inspiron1564 Notebook PC > Service Manual,http://support.dell.com/support/edocs/systems/ins1564/en/sm/index.htmhttp://www.insidemylaptop.com/replace-broken-screen-dell-inspiron-1564-laptop/
Let's start with two small primers first;
A) An LCD screen cannot produce light. It needs an additional light source. A Backlight is the additional light source.
A Backlight can be a CCFL, (Or two of them), or a series of LED's.
(Light Emitting Diode)
The Dell Inspiron 1564 Notebook PC can come with either a CCFL backlight, or LED backlighting.
A CCFL is a Cold Cathode Fluorescent Lamp.
Similar to Fluorescent lighting used in homes, and businesses, but on a MUCH smaller scale.
[ Average thickness is 2mm. That is a little larger than 1/16th of an Inch.
Average length is almost as long, as the LCD screen is in height.
Basic example. Look at the last 9 photos,http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/
A screen Inverter is used to convert the electricity from the laptop, for the LCD screen, and Backlight.
For LED backlighting a screen Inverter may not be used.
B) For a Dell, video cable is Display Cable.
LCD screen = Display Panel
Switch Cover = Power Button Panel
(Cover that is a strip of plastic essentially, that is above the Keyboard, and below the LCD screen. Has Power On button)
The display cable attaches to the motherboard, in an area under the Power Button Panel. (Above the F2 and F3 key, approximately)
It then routes under the left Hinge, and up into the Display Panel Assembly.
From there it attaches to the screen Inverter, if used, and to the back of the LCD screen.
A example of the cable,http://www.ebay.com/itm/DELL-INSPIRON-1545-LCD-FLEX-CABLE-LED-R267J-NEW-/370491513861?pt=US_Laptop_Screens_LCD_Panels&hash=item564303dc05
The cable may become pinched in the left Hinge. This can cause pulling on the cable, and/or damage.
Pulling may cause loose connections of the cable. Loose at the motherboard side, or LCD screen side.
Doesn't take much of a loose connection to get issues like what you are seeing.
In fact it may be so minute (My-noot) that it won't be visually seen.
The ONLY way to be assured the connections are tight, is to PHYSICALLY check them. Try to plug them in tighter.
This means checking the display cable on the motherboard side, and LCD screen side. http://support.dell.com/support/edocs/systems/ins1564/en/sm/powerpan.htm#wp1061007
The Power Button Panel contains the Power On button/switch.
It can be removed, and laid over so that the motherboard connection can be checked, with the Power On switch still attached. This way after physically checking the connection, the laptop can be turned on, and display checked.
[Lay the Display Panel Assembly back as far as you can. Suggest covering screen with soft cloth, or suitable device to protect screen.
Screen has to be handled as if it is good, until diagnoses shows differently.
If the Power Button Panel cannot be laid back far enough, to get out of your way, unplug the Power Button cable. Plug back in to check display.
ALL power removed BEFORE disassembly.
Replace Battery, and AC adapter (Charger) when going to test display, after checking connection ]
For the LCD screen (Display Panel) side of display cable connection,
remove ALL power, then,http://www.insidemylaptop.com/replace-broken-screen-dell-inspiron-1564-laptop/
,disassemble down to Step 7. This way you can lean the screen out, and check the connection.
Display Panel connection physically checked reinstall power, turn on, check display.
IF there is obvious visual signs of damage to the sheath of the Display Cable, there may also be damage to the tiny wires inside.
A continuity check with a multimeter is warranted.
If the Display Cable's sheath does Not show obvious signs of damage, it is still best to perform a continuity check, so you can Positively rule out the Display Cable as the problem.
Suggest go to a local 'Mom and Pop' computer store, and for a coupla' bucks have them check it.
Or replace it.
Display cable checks out 5by? (OK)
The next item to check is the screen Inverter, IF a screen Inverter is used.
90 PERCENT OF THE TIME the fault can be attributed to a bad screen Inverter.
One example of an Inspiron screen Inverter,http://www.ebay.com/itm/New-Genuine-Dell-Inspiron-1545-Series-Lcd-Inverter-Board-15-6-H251M-0H251M-/300756244730?pt=US_Laptop_Screens_LCD_Panels&hash=item46067818fa
Yes. It's an Inspiron 1545 screen Inverter. Couldn't find a listing for an Inspiron 1564 screen Inverter. Means to me that most of the 1564's use LED backlighting, or everyone is switching to an LCD screen that uses LED backlighting.
If the screen Inverter checks out, the problem is the Display Panel.
IF there is No screen Inverter used, the problem is the Display Panel.
I'm willing to bet you have a loose Display Cable connection, or damage to the Display Cable.
For additional questions please post in a Comment.
[ For the areas you are going in no ESD wrist strap is needed.
It IS however, always a good practice to wear one, and have it's alligator clip attached to a good ground source.
Electro Static Discharge.
Your body carries Static electricity. Static WILL fry out (Short Circuit), the delicate hardware components inside a computer. (Laptop or Desktop)
Doubtful that you will see it, or feel it. Poof! Your computer is fried.
An ESD wrist strap relieves your body of Static. You CANNOT just touch a metal frame of the laptop to relieve your body of Static, like you can a desktop computer.
Average cost is around $3 to $6. One example,http://www.radioshack.com/product/index.jsp?productId=2103245
I connect to an unpainted surface, of the metal frame of an open, empty desktop computer case. I do not feel an anti-static mat is warranted.
You can also set a large metal serving tray (Unpainted), on the table you're working on, and connect to it.
Or use a large metal knickknack (Unpainted ]