My dvp642 dvd player right know is starting when i switch on the supply it starts blinking the power on LED and doen't start but when i remove the power supply of main bord ie prosessor the power supply LED remains stable but again if i put the power to processor again it start blinking
Read on a forum that changing out c316 1000uF will fix the problem, mine will not turn on now, seems to have gotten worse over time. I will change the capacitor from 1000uF 10v to 1000uF 16v. Look at your capacitor, mine looks like its ready to blow. Most other capacitors on the board are rated at 16 volts. I will be changing out the cap. to see if it works.
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Those blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electro-medical.blogspot.com/ http://homenol.blogspot.com/ http://electronicshelponline.blogspot.com/
If blinks continue without any pause, the main board is faulty.
I fixed this problem in my DVP642 by replacing a capacitor on the main
power board where the power chord hooks in. Take the top cover off
(after unplugging player). You'll be able to locate the bad capacitor
on the circuit board located on the very right. Look for location
marked c316 on the circuit board. A bad capacitor will be bulged up on
top. The capacitor you're looking for will be a black barrel shape with
an aluminum top, this aluminum top will be bulged up or leaking on the
circuit board. Replace this capacitor by desoldering the two leads into
the board and replacing with an identical part you can pick up at Radio
Shack for a couple dollars. My repair for this identical problem was a
success. The blinking light is the tip off for this particular problem
on these Phillips models.
IF YOU ARE FAMILIAR WITH A SOLDERING IRON THIS IS A VERY SIMPLE FIX, IT IS SIMPLY A MATTER OF FAILED CAPACITORS ON THE POWER SUPPLY COMPONENT BOARD.
USUALLY A PAIR OF THEM OR MAYBE 3, VERY SIMILAR TO THE SAME ISSUE WITH PHILIPS DVP-642 MODEL.
REMOVE THE TOP <WHICH YOU HAVE TO DO TO REMOVE THE DVD> AND YOU WILL SEE THE BULGED OUT CAPACITORS, THEY WILL PROBABLY HAVE GUNK ON TOP OF THEM.
To get your DVD out of the non working player, you have to look on the bottom of the case below the tray. There you will find a little slot, about 2 cm long x 2 mm wide. Through that slot you will see a white plastic piece, sometimes its on the middle of the slot and sometimes its full to the left of it (the front of the player facing you). Use something that can be inserted in the slot (I used a little knife) and move the white plastic piece all the way to the left, that will loose the tray. Then you will be able to open the tray using your fingers, nails or anithing that won't scratch the finishing of the case.