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Sony Bravia KDL-46XBR9 Power/Standby Light blinking 10 times    
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dwilkes24



Joined: 12 Dec 2014
Posts: 2
Location: Washington

PostPosted: Fri Dec 12, 2014 7:24 pm    Post subject: Sony Bravia KDL-46XBR9 Power/Standby Light blinking 10 times Reply with quote

My Sony KDL46XBR9 is doing the following:

1. Power on.
2. Will show video and audio for 10-15 seconds.
3. Audio will then quit.
4. TV will power off by itself.
5. Then power back on by itself.

This will repeat 4 times by itself, then will finally power down and then the Red Power/Standby LED will blink 10 times in a row repeatedly.

Research on the interweb says this may be a faulty "D" board, but I'm having difficulty identifying what is meant by the "D" board. On this model of TV. What is the "D" board. there are two circuit boards that are labeled D1N and D2N. Are these the "D" boards, and if they are, which one needs to be replaced based on the symptoms described?

Any and all help is appreciated.
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JTS1957



Joined: 21 Jan 2009
Posts: 2266
Location: Far, Far Away

PostPosted: Fri Dec 12, 2014 8:15 pm    Post subject: Reply with quote

When an error occurs, the POWER/STANDBY LED indicator will flash a set number of times to indicate the possible cause of the problem. If there is
more than one error, the indicator will identify the first of the problem areas.
Diagnostic Item Description: DTT WDT
Number of times POWER/STANDBY LED lamp flashes: 10 times
Possible Location: Watch Dog Timer used to track micro processors, not to record errors.

NO plain "D" board in this Model/Chassis. You may want to recheck your 'Interweb' source. Sony DOES use 'D' boards (In CRT sets), but NOT in this Model/Chassis.
See for yourself.
Board compliment for this Model series:

51 A-1663-188-B D2N-40 BOARD, COMPLETE
(KDL-40XBR9 ONLY)
51 A-1663-190-B D2N-46 BOARD, COMPLETE
(KDL-46XBR9 ONLY)
51 A-1663-194-A D4N BOARD, COMPLETE
(KDL-52XBR9 ONLY)
52 4-132-467-01 BRACKET, SIDE JACK
53 A-1728-743-A BU BOARD, COMPLETE
(KDL-40XBR9 ONLY)
53 A-1728-744-A BU BOARD, COMPLETE
(KDL-46XBR9 ONLY)
53 A-1728-745-A BU BOARD, COMPLETE
(KDL-52XBR9 ONLY)
NOTE: Please refer to section 2-4. Setting the Destination after Replacing the BU Board
when replacing the BU Board.
54 8-597-686-00 TUNER, FSS-BTF-CA431T
55 1-487-341-11 G7N BOARD, COMPLETE (POWER UNIT)
(KDL-46XBR9/52XBR9 ONLY)
56 A-1663-218-A G6N BOARD, COMPLETE
(KDL-40XBR9 ONLY)
57 1-487-319-11 SWITCH UNIT
58 A-1663-184-B D1N-40 BOARD, COMPLETE
(KDL-40XBR9 ONLY)
58 A-1663-186-B D1N-46 BOARD, COMPLETE
(KDL-46XBR9 ONLY)
58 A-1663-192-A D3N BOARD, COMPLETE
(KDL-52XBR9 ONLY)
dwilkes24



Joined: 12 Dec 2014
Posts: 2
Location: Washington

PostPosted: Fri Dec 12, 2014 10:00 pm    Post subject: Sony Bravia KDL-46XBR9 Power/Standby Light blinking 10 times Reply with quote

Thanks for the detailed response although I don't understand most of it. Sounds like I'm choking the wrong chicken as I've already replaced the D2N board thinking it was the D board. Didn't fix it.

Practically speaking, I've had this set for 5 years now. Is this problem worth chasing and fixing or is it time to move on to a new one and donate this one to the electronic recycling graveyard?

I'd welcome yours or anyone else's opinion from your expertise and experience.

What would you do?

Thanks again!
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