Author Topic: Sony KDL-40S2030 flashing red standby light 4 times (Read 6457 times)

Jabboy · « **on:** January 03, 2013,03:59:28 »

Hi Guys,

Hope someone can help me on this.
I have this TV which when plugged in turns on for about 3 seconds then immediately switches off leaving the red light flashing 4 times, pauses and then repeats this process.
anyone have an idea on how to diagnose the fault on this unit?
As always, any help would be much appreciated

Mulja tv repair portal · « **on:** January 03, 2013,03:59:28 »

jordan · « **Reply #1 on:** January 03, 2013,04:11:29 »

Chassis WAX2
Check inverter (Q-501,FET Q-601;fuse LF-10/7A,reflow inverter transformers)

Jabboy · « **Reply #2 on:** January 04, 2013,01:29:08 »

Thanks Jordan,

I have replaced the whole inverter but still the same.
However the one i have replaced with came off someones storage so may not be working too.
when u say reflow transformer, what do u mean by that sir?

Mulja tv repair portal · « **Reply #2 on:** January 04, 2013,01:29:08 »

t1412 · « **Reply #3 on:** January 04, 2013,01:41:14 »

resolder the transfomer!!

regards
shaun

Jabboy · « **Reply #4 on:** January 04, 2013,03:27:54 »

Thanks Shaun.

This Inverter PCB2676 has non of the components he has advised me to check and 10 Transformer which I will i will fresh solder.
ay further advise? will update if this works

cheeky2 · « **Reply #5 on:** January 08, 2013,14:06:45 »

I suggest you replace both inverters one set on the left and one on the right. I presume you have looked underneath the inverters as there are components underneath!

Mulja tv repair portal · « **Reply #5 on:** January 08, 2013,14:06:45 »

clark97 · « **Reply #6 on:** January 09, 2013,21:11:15 »

Check the bridge rectifiers reservoir caps.

marky mark · « **Reply #7 on:** January 10, 2013,03:39:46 »

Just to check.

the inverter is in 2 parts and only down the left hand side, the components mentioned aren't on it & the bridge rectifier and reservoir cap is still in the PSU?

cheeky2 · « **Reply #8 on:** January 11, 2013,05:29:21 »

My mistake i was thinking of the 46S2030 which has the inverters both sides!

clark97 · « **Reply #9 on:** January 12, 2013,00:04:54 »

Yes 450v caps in psu.

marky mark · « **Reply #10 on:** January 12, 2013,01:40:59 »

So you think the bridge might be short then? No problem, looks like the set is fixed, he's not replied anyway

sparky · « **Reply #11 on:** January 12, 2013,06:28:31 »

thats what happens no result posted i try when i find the cure

marky mark · « **Reply #12 on:** January 12, 2013,08:44:00 »

See, I'm different. If someone asks a question I reply, especially on a free forum, who gets paid for this help then? Or is it just free?

Mulja tv repair portal · « **Reply #12 on:** January 12, 2013,08:44:00 »

Mulja tv repair portal

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