It will play music cd
All DVD or certain one's? Have you tried other dvd's? What format is the DVD you are trying to play and what software?
SOURCE: my compaq presario won't play dvds. it says its
Have you tried downloading any free dvd players from the internet? if not then try this one from www.download.com.
http://download.cnet.com/3001-20_4-10310889.html?spi=f6bbc96d58bde6ecda90603a8910d457
If the problem persists, then you are most likely having a problem with your player and might need to be cleaned or replaced.
SOURCE: HP COMPAQ 6715b screen wont come on
Suggest you use a VGA monitor as an external monitor.
Can be a CRT monitor that resembles a small TV, or a flat LCD screen monitor that has a VGA cable coming from it.
Laptop OFF, monitor OFF, attach the VGA cable of the monitor, to the VGA port on the back of the laptop.
[ Example of a VGA port {Connector}, and a VGA cable,
http://en.wikipedia.org/wiki/VGA_connector ]
Turn the monitor on. If it is a CRT model let it warm up.
Turn the laptop on.
The display should automatically come up on the external monitor. If not press, and hold down on the Fn key, then tap once on the F4 key.
Still no? Tap the F4 key again.
1) No graphics, or display, shown on the external monitor, means there is a problem with the graphics chipset.
The motherboard chipset is an AMD RS690T. Also known as AMD M690T.
Usually coupled with an AMD SB600 southbridge chip, and ATI Radeon X1250 graphics chipset.
The graphics chipset is soldered to the motherboard with a BGA surface mount.
(Ball Grid Array)
http://en.wikipedia.org/wiki/Ball_grid_array
To explain the BGA surface mount I'm going to use an older Intel Pentium 4 processor, and it's Socket 478 processor socket.
The processor has contact pins on the bottom. 478 of 'em.
This is an example of the Socket 478 processor socket,
http://en.wikipedia.org/wiki/Socket_478
There are 478 socket holes.
With a chipset using a BGA surface mount there are No contact pins. There are Solder Balls in place of the pins.
There is no socket on the motherboard. There are Copper Pads which take the place of the socket holes.
The graphics chipset is set into place with the Solder balls lining up on the Copper Pads.
Heat is then applied at a specified temperature, and length of time, and the solder balls melt.
This solders the chipset to the Copper Pads, which in turn solders the chipset to the motherboard.
If excessive heat is developed, due to the laptop has never been cleaned inside, air intake duct for the fan has been blocked, or a poor cooling design for the graphics chipset, the solder connections start to partially melt.
This results in a poor contact of the graphics chipset to the motherboard.
No graphics (Display) being shown on the internal monitor of the laptop, and external monitor, is one result.
The HP Pavilion dv2000, dv6000, and dv9000 series of Notebook PC's have this problem. It's due to a poor cooling system design for the graphics chipset, The HP Compaq 6715b Notebook PC could fall into this category,
http://www.youtube.com/watch?v=bnkQNmKauEc
2) Graphics, or display shown on the external monitor, means there is a problem with the Display Assembly.
A) Could be a loose connection of the Video Cable.
Video Cable connection to the motherboard could be loose, and/or video cable connection to the LCD screen, could be loose.
B) Could be damage to the Video Cable. (Display Cable)
The Display Cable runs very close to the left Hinge. It could be pulled on, and result in a poor connection, or pinched, and damaged.
Look at the Display Cable's sheath. See if there is apparent damage to the sheath.
If so this means there may be damage to a wire, or wires, in the Display Cable.
There may Not be any apparent visual signs of damage.
Remove the Display Cable out of the laptop, and perform a continuity test of each wire.
[ An economical, yet decent multimeter, can be purchased for around $8 to $12. Many stores carry them. An auto parts store is but one example.
Analog with a needle, and face, or Digital with a digital readout, is fine. Either style will do.
(I prefer Analog)
Set the Function Knob to Ohms. (1K or 10K)
The Red probe lead is the Positive lead.
The Black probe lead is the Negative lead.
The Positive lead is touched to one end of a wire in the Display Cable, and the Negative lead is touched to the other end of the wire. (Using alligator clips on the ends of the probes, helps a lot)
Follow the wires.
You are not concerned at this point of the actual reading. You are just concerned if there IS a reading.
No reading indicates a broken wire.
Also have a helper gently wiggle the Display Cable, and see if there is an intermittent reading.
(Reads, then doesn't read)
This also indicates a broken wire.
Display Cable checks out OK, then move on to the screen Inverter.
This is a small rectangular circuit board located behind the Display Bezel, and mounted at the bottom of the LCD screen.
Example,
http://www.batterycentury.com/hp-6715b-inverter-p-183533.html
Still no?
The problem is the LCD screen.
HP Compaq 6715b Notebook PC Service Manual, from HP Support, (Free),
http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp?contentType=SupportManual&lang=en&cc=us&docIndexId=64179&taskId=101&prodTypeId=321957&prodSeriesId=3368540#3
On this page left-click on the first file, listed under the Service and maintenance information heading,
HP Compaq 6715b and 6715s Notebook PC, HP Compaq 6710 and 6710s Notebook PC - Maintenance and Service Guide
This is a PDF file. The computer you are using now has Adobe Reader on it, which uses PDF files.
After you click on the above file name, it may take up to 30 seconds before the first page comes up.
It may also take additional time for the file to fully download.
Display Assembly removal starts on Page 81.
For additional questions please post in a Comment.
Regards,
joecoolvette
Laser is starting to go bad in your drive. Replace the DVD-RW drive.
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