Question about ViewSonic VX910 19" LCD Monitor
Hi, I found 2 of my CCFL drivers shorted Q6 & Q7, problem is they are SMD transistors, and they only have 4 letters written on top DK QA. I replaced them with a DK QM I had, it worked for about 24 hours but looks to me they went bad again, I can't find how to read this letters(manufacturer code), on the other hand I think the transformer is probaly shorted too. Where can I find any information on this board, a schematic or a clue on the name of this 2 transistors? Thanks Io.
One and a half year later I know the solution :-). It is 2SC4672... sure!. DKQ* is in my Jaeger SMD-Decoder book (10.000 SMD - Demiconductor - Codes)
Common problem with inverter PCB. Caused by the damaged or loose 100nF (or some same value)
Succes. For me it is working.
Posted on Feb 27, 2009
This is not a solution but I am just surprised that you have the EXACT same fault as me. I've done some searching on datasheetcatalog website and apparently the letters DK mean it is a BCX42 PNP Silicon AF and Switching Transistor (For general AF applications High breakdown voltage) however the datasheet for this device is a 3 pin smd not a 4 pin so I'm not sure that it is correct.
Posted on Sep 17, 2007
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Sep 28, 2011 | Polaroid TDX-03211C LCD TV
May 08, 2010 | Polaroid FLM-3701 Television
Jan 02, 2010 | ViewSonic VX910 19" LCD Monitor
Jun 29, 2009 | ViewSonic VX910 19" LCD Monitor
Mar 16, 2008 | ViewSonic VX924 19" LCD Monitor
Jan 15, 2008 | ViewSonic N3250W Television
Dec 30, 2007 | ViewSonic VX910 19" LCD Monitor
Nov 01, 2017 | ViewSonic VX910 19" LCD Monitor
Sep 07, 2017 | ViewSonic VX910 19" LCD Monitor
Oct 09, 2017 | ViewSonic VX910 19" LCD Monitor
1,091 people viewed this question
Usually answered in minutes!