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05-31-2020, 07:49 AM
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#1 |
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Member
Join Date: May 2020
City & State: Knysna
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Sony KLV32U300A starts up then shuts down
Sony KLV32U300A starts up then shuts down with ared led blinking twice with a pause then again the same over,ould someone pls give advice on where to lookfor rhe error
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05-31-2020, 10:48 AM
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#2 |
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Badcaps Veteran
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Re: Sony KLV32U300A starts up then shuts down
Are you certain it's KLV32U300A and not KLV-32V300A
The led fault code for KLV-32V300A is attached
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Willing to help but I'm no expert. |
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06-03-2020, 08:06 AM
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#3 |
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Member
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Re: Sony KLV32U300A starts up then shuts down
Thanks Dick,it is definitely klv32u300a
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06-03-2020, 08:08 AM
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#4 |
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Member
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Re: Sony KLV32U300A starts up then shuts down
And thanks for your input,much appreciated
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06-03-2020, 08:28 AM
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#5 |
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Badcaps Veteran
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Re: Sony KLV32U300A starts up then shuts down
Can you post nice sharp photo's of the circuit boards
Have you taken any voltage readings? |
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06-03-2020, 09:21 AM
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#6 |
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Badcaps Veteran
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Re: Sony KLV32U300A starts up then shuts down
Try test number 3 below, be sure to post the pin label/description, number and voltage.
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1) https://www.youtube.com/watch?v=4F2J1Dkf4Is HIGH VOLTAGE HAZARD demonstration. Video by Electronic Doberman. 2) https://www.youtube.com/watch?v=4v8DcqCNG4A Power supply board voltage testing by shopjimmy. BE VERY CAREFUL WITH POWERSUPPLY, VOLTAGE ON PRIMARY/HOT SIDE CAN BE DEADLY, THE CAPACITORS CAN HOLD A VERY BIG CHARGE LONG AFTER TV HAS BEEN UNPLUGGED. 3) Test connector from mainboard to powerboard on powerboard side with all boards hooked up, test with tv plugged in but off then hit power, report both conditions here, give pin number, pin description/name and condition both off and when you hit power on. So we can see all the voltages and what they are doing. Donations accepted with a smile and a Thank you 
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06-03-2020, 07:19 PM
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#7 |
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Badcaps Veteran
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Re: Sony KLV32U300A starts up then shuts down
Service manual.
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Never stop learning Basic LCD TV and Monitor troubleshooting guides. http://www.badcaps.net/forum/showthr...956#post305956 Voltage Regulator (LDO) testing: http://www.badcaps.net/forum/showthr...999#post300999 Inverter testing using old CFL: http://www.badcaps.net/forum/showthr...er+testing+cfl Tear down pictures : Hit the ">" Show Albums and stories" on the left side http://s807.photobucket.com/user/budm/library/ TV Factory reset codes listing: http://www.badcaps.net/forum/showthread.php?t=24809 |
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06-05-2020, 03:41 AM
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#8 |
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Member
Join Date: May 2020
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Re: Sony KLV32U300A starts up then shuts down
Hi Dick no i hav'nt checked the voltages yet and i will post pics of the circuit boards,yesterday i switche the tv on and it actually came on for 5 minutes and switched off automatically but after that the same on off occured again.what can you make of that
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06-05-2020, 03:43 AM
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#9 |
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Member
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Re: Sony KLV32U300A starts up then shuts down
Does it sound like the power supply or could it be on another board
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06-05-2020, 03:57 AM
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#10 |
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Badcaps Veteran
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Re: Sony KLV32U300A starts up then shuts down
It's just speculation until you do the tests.
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06-05-2020, 01:52 PM
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#11 |
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Member
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Re: Sony KLV32U300A starts up then shuts down
Thanks nomoresonys
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06-08-2020, 07:00 AM
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#12 |
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Member
Join Date: May 2020
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Re: Sony KLV32U300A starts up then shuts down
Hi Dick,i checked voltages on standby and all seem ok but when i removed one plug from power supply going to the main board then green light stays on which indicates that the fault is on main board but the led flashes 2 times still which according to the chart of blinking codes should indicate that the psu is the culprit,how do i post pics of the boards on here
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06-08-2020, 12:10 PM
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#13 |
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Badcaps Veteran
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Re: Sony KLV32U300A starts up then shuts down
Post pictures by clicking on "Go Advanced" and then I add them one at a time.
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06-11-2020, 12:19 AM
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#14 |
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Member
Join Date: May 2020
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Re: Sony KLV32U300A starts up then shuts down
Hi Dick i did go on advanced and added the attachments but how do i post them,when i add attachments on email i have no problem but on here i just dont seem to get it done
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06-11-2020, 09:32 AM
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#15 |
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Badcaps Veteran
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Re: Sony KLV32U300A starts up then shuts down
RJ gives an explanation on how to add attachments
https://www.badcaps.net/forum/showpo...18&postcount=4 |
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06-11-2020, 10:29 AM
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#16 |
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Member
Join Date: May 2020
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Re: Sony KLV32U300A starts up then shuts down
Sorry it looks like i cant add attachments yet it states invalid post
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06-12-2020, 11:31 PM
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#17 |
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Member
Join Date: May 2020
City & State: Knysna
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Re: Sony KLV32U300A starts up then shuts down
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06-12-2020, 11:32 PM
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#18 |
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Member
Join Date: May 2020
City & State: Knysna
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Re: Sony KLV32U300A starts up then shuts down
Ok i finally managed to attach the psu and main board
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06-13-2020, 03:09 AM
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#19 |
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Badcaps Veteran
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Re: Sony KLV32U300A starts up then shuts down
Can you give the voltages read on CN201, CN202 & CN203
eg CN201 Pin 1 GND Pin 2 GND Pin 3 PWR_6V = xxV Pin 4 PWR_6V = xxV Pin 5 GND etc for all pins |
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06-14-2020, 01:14 PM
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#20 |
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Member
Join Date: May 2020
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Re: Sony KLV32U300A starts up then shuts down
CN201 Pin 1=GND 2=GND 3=5.63V 4=5.83V 5=GND 6=GND 7=5V 8=5V 9=GND 10=GND 11=14.60V 12=14.60V 13=GND 14=32V
CN202 Pin 1=0.2V 2=0V 3=4.1V 4=GND 5=GND 6=GND 7=4.1V 8=4.1V CN203 Pins 1-5=0V And 6-10=24V |
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