Re: Pioneer - AVH-z5200dab component identification



Good to know that the schematic comes from the service manual. Then I have enough information to carry out the repair. Thanks again, much appreciated! (I've been searching for the wrong manufacturer for days)...

Re: Pioneer - AVH-z5200dab component identification



Thank you lotas for the very fast reply! Pinout (Vinput, ground) looks correct to me....

Dear forum colleagues,

Here I have a Pioneer - AVH-z5200dab of which the 5Vdc USB voltage is missing.
IC451 is defective and a capacitor is defective (short circuit).

Now I can't find a service manual for this specific unit anywhere, nor can I identify the step-down converter chip IC451.
This is (I think) a Microchip(?) DC/DC converter in a QFN-24 package. I can't find the type on the Microchip site. It also does not work via Google and image search.
Markings on the chip: "008 630B"

Does anyone have an idea?
...

Re: Service Menu And NAND Flash KFG1GN6W2D For Samsung TV UE32D6100.

Hi all,

I see that this topic is a bit old, but I have exactly the same problem as described here. The tv is in a reboot loop (D5720) after a bad update. Is there a solution to reprogram the OneNAND chip without desoldering it?