Hi again, so I have this very nice and capable Tv yet it has this 4 red blinks error, it will turn on but after about 4 minutes or so it will turn off showing the 4 red blinking lights, from the remote I can turn it straight back on again and yet again it's about 4 minutes and then it will turn off again, from my research it seems it's a fan issue and there's possibly 3 of them, all probably needing a clean but what I ask is there anything to watch out for when trying to repair this issue? some have said actually taking the fans apart, cleaning them and then a re-grease, it also looks to have a green tinge to everything, I'm guessing degraded optics, namely the little LCD devices but maybe a clean can help here too, thanks, Andy.
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Re: Sony KDS-55A2000 4 blinks error.
http://elektrotanya.com/
I have the same set. Go the site and type inmodel # and you can download the Service Manual and the Training module -
Re: Sony KDS-55A2000 4 blinks error.
4 blinks are for fan error. Fan error 4 times Diagnosis Item- Fan connector is not
attached securely. Fan 1,3 and 4 power not suppliedComment
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Re: Sony KDS-55A2000 4 blinks error.
Thank you, has made for some interesting reading, I'll get at it tomorrow, thanks again, Andy.Comment
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Re: Sony KDS-55A2000 4 blinks error.
OK, all done it seems, took the whole of the rear apart, had a look at the fan, was very clean so I just put it all back together and it seems OK, it's just this green/yellow hue that I just can't adjust out, I guess this is the green blob people have experienced with there sets, it's a bit annoying but I can't really complain for £45.Last edited by Dang; 11-12-2013, 11:05 AM.Comment
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Hi everyone!
I have a Sony KD-65A1 TV with a fault – 4 red LED blinks. After disassembly and visual inspection, I found that the G76 power board and DKA board had been replaced. It is also possible that TCON was replaced, but I am not sure – there are a few marker marks that could be factory-made.
Based on assumptions, the previous service attempted to solve the issue by replacing potentially faulty components. I decided to investigate further, found a service manual, and figured out a way to power up the power supply unit autonomously and put the OLED panel and... -
Bought this TV used not working, panel flashed briefly on power up and it was blinking 8 times, a quick look on SS board revealed a common fault on the 3uF 250V capacitors, C201 to C205 (C1620X in the service manual), the solder joints were all cracked, C201 and C205 pins were darkened and some sparking had occurred on them, C201 was split open and clearly overheated in its last hours, replaced that one and resoldered the others, 8 blinks fixed.
Also the previous owner broke the antenna connector by taking the TV out of the wall mount forgetting to unplug it, I desoldered the tuner... -
Hi all!
HISENSE 65E7KQ PRO
RSAG7.820.13512 - chassis
MT9618BAATAB - cpu
RSAG7.820.12059 - power
HD650Y3U77 - panel
KLM8G1GETF - emmc
The TV does not turn on, the standby indicator is on. All voltages are present.
Emms is dead. Not readable, not detected.
Replaced emmc.
But with another dump there is no launch
Terminal log
UART
<
AC_ON
RPMB key is not yet programmed
HASH1_VERSION=0x00000000 64bit
E-B
FDE enabled
layout pattern onebin by SAR7,0... -
Recently I was given for free a Sony RCD-W3 with the following symptoms, CD recorder drive reads CDs without any issues (haven't tested recording function yet because I don't intend to burn CDs on that machine) but the reader drive shows disc error after some seconds of it trying to read CD. Tried both CD-Rs and commercial audio CDs with same results.
First thing to do was to clean the lens but that didn't change anything. Googling the issue revealed that this is a common issue on several Sony CD recorder machines and the culprit is SMD electrolytic caps located on the PCB bellow...05-05-2024, 02:04 PM -
Hi I'm new to trying to repair TVs, but I saw a broken OLED offered for a reasonable price and thought I'd try my hand at it.
I found the service manual, which was critical to know where to probe.
https://www.manualslib.com/manual/20...1e-Series.html
With it I was able to determine that my DKA board was bad, when P_ON#1/2 gets enabled REG_12 on the DKA board collapses. I'm assuming one of the downstream regulators has a short, but I couldn't work out which rail/component and replaced the DKA board entirely.
Unfortunately the 5-blinks...
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