Sony Bravia LCD KDL-32L4010 four blink error code

[dick_barton]

Re: Sony Bravia LCD KDL-32L4010 four blink error code

Move your meter down to a lower resistance setting so that it reads ohms not Kohms

[jackfish]

Re: Sony Bravia LCD KDL-32L4010 four blink error code

heres the transformer in question,,,,

[jackfish]

Re: Sony Bravia LCD KDL-32L4010 four blink error code

put my meter to 60k..tested the bottom transformer..was 0.68..tested the top one..was 0.69......the small single one was 0.01...

[dick_barton]

Re: Sony Bravia LCD KDL-32L4010 four blink error code

Yes well worth checking those out first and compare the resistance readings to each other. If memory serves me correctly there should no more than 3% difference in the readings.

[vinceroger69]

Re: Sony Bravia LCD KDL-32L4010 four blink error code

did you check what budm suggested in post 20 transformers have been known to go faulty causing this type of issue

[dick_barton]

Re: Sony Bravia LCD KDL-32L4010 four blink error code

If you solder a 10K resistor across C014 carefully without losing the capacitor, then do the lamps stay on.

This was posted on another forum as a quick check to see if there was a CCFL tube problem, however I've never tried it.

The idea behind it is that if there is a faulty lamp it forces the inverter to stay on.

However it is only intended to be a quick test to establish if any of the tubes are faulty.

[jackfish]

Re: Sony Bravia LCD KDL-32L4010 four blink error code

well im leaning towards a new inverter board..i did find one ..the exact same numbers on the board..but its from a kdl-32l5000 model.threre are green boards and blue boards..one was made in 2008..and one in 2009..mine is green...im guessing it should be ok....

[dick_barton]

Re: Sony Bravia LCD KDL-32L4010 four blink error code

I believe it to be somewhere in the order of 1200V to 2500V AC so do not use your multimeter or you will be purchasing a new one.

[jackfish]

Re: Sony Bravia LCD KDL-32L4010 four blink error code

what voltage am i suppose to be getting at the connection to the bulbs? im getting some weird readings..cranked it up to 600 on my multi meter.

[jackfish]

Re: Sony Bravia LCD KDL-32L4010 four blink error code

they do come on for about 1 second...i took a fast pic..they all look the same brightness...ill look and see about the large ic...the boards on the service manual that was linked to me on this thread is completely different,.....

[dick_barton]

Re: Sony Bravia LCD KDL-32L4010 four blink error code

Is the larger IC on the inverter board an OZ9972BN

[dick_barton]

Re: Sony Bravia LCD KDL-32L4010 four blink error code

took it apart to see what was lighting it...seems to be ok...they all lit up...checked the caps on the board..there ok...

I thought post #1 said they came on then went off. It may be worth your while checking that all the tubes are firmly held in their end connectors while you have it open. Also although it does not show in the photo, are any of the tubes dimmer than the others.

[jackfish]

Re: Sony Bravia LCD KDL-32L4010 four blink error code

took it apart to see what was lighting it...seems to be ok...they all lit up...checked the caps on the board..there ok...

[jackfish]

Re: Sony Bravia LCD KDL-32L4010 four blink error code

these are the readings

14..1.6
13..1.4
12..3.1
11..1.8
10..ground
9..g
8..g
7..g
6..g
5..24.4
4..24.4
3..24.4
2..24.4
1..24.4

im thinking board or bulb since its giving me 1.8 on the error out pin...

[budm]

Re: Sony Bravia LCD KDL-32L4010 four blink error code

SSI320_8C01 (Sony 1-857-518-11 (LJ97-02201A) Backlight Inverter)
http://www.shopjimmy.com/sony-1-857-...-inverter.htm#
Pictures provided by shopjimmy.
I would check the resistance of the High Voltage windings of the Inveter transformers. Also check those two large lytics caps laying on its side.

[dick_barton]

Re: Sony Bravia LCD KDL-32L4010 four blink error code

Post #3 says they come on and then go off so it's possibly a tube or inverter board fault.
What voltages do you have on the 14 pin connector on the inverter board.
What is the IC number in the middle of the board.

[budm]

Re: Sony Bravia LCD KDL-32L4010 four blink error code

BTW, are you 100% sure that you do not notice that the backlights come on for seconds when you first turn on the TV?

[jackfish]

Re: Sony Bravia LCD KDL-32L4010 four blink error code

there it is...have to test it tommorow...

[budm]

Re: Sony Bravia LCD KDL-32L4010 four blink error code

There should be labels for the control signal pins on that inverter board connector: BL-ON (INV-ON), DIM, PWM-DIM.
See what DC Volt you get on those pin, I assume you do get the 24VDC.

[jackfish]

Re: Sony Bravia LCD KDL-32L4010 four blink error code

power board pic