Samsung UN60J6200AFXZA

[Jason616]

What would cause this black line on the screen ?

I reseated the ribbon cables but the line remains .

Any ideas ?

[neilc6]

Re: Samsung UN60J6200AFXZA

Static vertical lines are bad panels and not repairable. Google the Sony Tcon Training Manual.

[Storyteller12]

Re: Samsung UN60J6200AFXZA

These j series panels all seem to have this problem.

I have 3 with the same line on the left side as well.

[tahoe]

Re: Samsung UN60J6200AFXZA

Default Re: Samsung UN60J6200AFXZA....no backlights but a picture
Hi I need help with a UN60J6200AFXZA
- installed New LED strips from Shop Jimmy..
- No Backlights when Main Board is disconnected.
- Replaced LED Diode, D9001C and MOSFET Q9001C
O Volt reading (between Black and Grey wires on LED connector) when LED cable is disconnected
- Replaced QP801CS and QP802CS
Still O Volt reading (between Black and Grey wires on LED connector) when LED cable is disconnected
Any ideas?
thanks

[dskall]

Re: Samsung UN60J6200AFXZA

Need some pictures. And picture of connector with voltages.

[tahoe]

Re: Samsung UN60J6200AFXZA

Hi DSKALL,

Here are the details on my Samsung UN60J6200AFXZA.
Symptom:
When Tv turned on, no backlight, has sound and does have an image when I used a flashlight.
What have I done so far:

a.) Replaced bad LEDs with new ones from ShopJimmy...did not resolve symptom
On Power Supply Board BN44-00775A
b) Replaced Diode D9001C and MosFet Q9001C...did not resolve the problem
c) Replaced QP801CS, QP802CS and CP805...did not resolve the problem

Disconnected Mother board then

Voltage readings at present with the above replacements:
STBY=0V with reference to chassis GND.
With the LED Connector removed
On Connector: CNL802
pin1+ to pin 4:S- = 0V
pin6:S+ to pin 9-=0V
STBY =12.7V
Voltage on either Side of D9001C = 0V
On Connector CNM803
Pin 2: UD= 0Volts
Pin 4: PWM_BLU=0Volts
pin 6: PS_ON=0Volts
Pin 8: GND = 0Volts
Pin 10: GND = 0Volts
Pin 1: A13V = 0Volts
Pin 3: A13V = 0Volts
Pin 5: A13V = 0Volts
Pin 7: A13V = 0Volts
Pin 9: GND = 0Volts

Fuse test good
Can't get the high voltage on ConnectorCNM803
Any help/guidance will be appreciated

[tahoe]

Re: Samsung UN60J6200AFXZA

Hi DSKALL
I have to update the above voltage readings as follows.
Before the voltages all went to zero, and thru the probing process, i accidentally Shorted Pin 6 (PS_On) and Pin8 (GND) on the CNM803 connector.

Before this occured, the readings were as follows
Voltage readings at present with the above replacements:
STBY=12.7V with reference to chassis GND.
With the LED Connector removed
On Connector: CNL802
pin1+ to pin 4:S- = 0V
pin6:S+ to pin 9-=0V
STBY =12.7V
Voltage on either Side of D9001C = 417V
On Connector CNM803
Pin 2: UD= 2.4Volts
Pin 4: PWM_BLU=3.4Volts
pin 6: PS_ON= 4.1Volts
Pin 8: GND = 0Volts
Pin 10: GND = 0Volts
Pin 1: A13V = 12.8Volts
Pin 3: A13V = 12.8Volts
Pin 5: A13V =12.8Volts
Pin 7: A13V = 12.8Volts
Pin 9: GND = 0Volts

So....I now have 2 problems.
1. recovering the state of the powersupply to the condition before the accidental short
AND
2.How to get the High voltage to the known good LEDs
Thank you for your help

[tahoe]

Re: Samsung UN60J6200AFXZA

Hi DSKALL
I have to update the above voltage readings as follows.
Before the voltages all went to zero, and thru the probing process, i accidentally Shorted Pin 6 (PS_On) and Pin8 (GND) on the CNM803 connector.

Before this occured, the readings were as follows
Voltage readings at present with the above replacements:
STBY=12.7V with reference to chassis GND.
With the LED Connector removed
On Connector: CNL802
pin1+ to pin 4:S- = 0V
pin6:S+ to pin 9-=0V
STBY =12.7V
Voltage on either Side of D9001C = 417V
On Connector CNM803
Pin 2: UD= 2.4Volts
Pin 4: PWM_BLU=3.4Volts
pin 6: PS_ON= 4.1Volts
Pin 8: GND = 0Volts
Pin 10: GND = 0Volts
Pin 1: A13V = 12.8Volts
Pin 3: A13V = 12.8Volts
Pin 5: A13V =12.8Volts
Pin 7: A13V = 12.8Volts
Pin 9: GND = 0Volts

So....I now have 2 problems.
1. recovering the state of the powersupply to the condition before the accidental short
AND
2.How to get the High voltage to the known good LEDs
Thank you for your help

[dskall]

Re: Samsung UN60J6200AFXZA

Shorting ps-on probably turned off power supply. Should come back up when you press power button. Did you test backlights with a tester after you installed them?

[nomoresonys]

Re: Samsung UN60J6200AFXZA

since theres a question now, plug everything in as normal thats with all boards hooked up, then do this test, just like it is to see what you are getting: report the voltages you have in standby(tv plugged in) and when you power on the tv, report both conditions, as in: pin number, expected voltage and your actual voltage, example pin 1 ps-on, off 0volts, on 3.5volts.

[nomoresonys]

Re: Samsung UN60J6200AFXZA

a question, are the original backlights bad?

[nomoresonys]

Re: Samsung UN60J6200AFXZA

did you very carefully check the voltage between the legs of the big filter caps on powerboard? CAUTION DEADLY VOLTAGE in the hot/primary side of the board, normal is around 165 in standby and around 390 when tv powered on. If your meter is not autorange, you need to set it at 200 or next higher vdc.

[tahoe]

Re: Samsung UN60J6200AFXZA

Shorting ps-on probably turned off power supply. Should come back up when you press power button. Did you test backlights with a tester after you installed them?

Pressing power button does not turn on power supply.
I tested the new leds, each strip, with 27V batteries

[tahoe]

Re: Samsung UN60J6200AFXZA

a question, are the original backlights bad?

Yes, they are

[tahoe]

Re: Samsung UN60J6200AFXZA

did you very carefully check the voltage between the legs of the big filter caps on powerboard? CAUTION DEADLY VOLTAGE in the hot/primary side of the board, normal is around 165 in standby and around 390 when tv powered on. If your meter is not autorange, you need to set it at 200 or next higher vdc.

ON STBY (Since the PS is not turning on) voltage= 160.7V on both CP807 and CP806

[tahoe]

Re: Samsung UN60J6200AFXZA

since theres a question now, plug everything in as normal thats with all boards hooked up, then do this test, just like it is to see what you are getting: report the voltages you have in standby(tv plugged in) and when you power on the tv, report both conditions, as in: pin number, expected voltage and your actual voltage, example pin 1 ps-on, off 0volts, on 3.5volts.

Pluged everything back together...
STBY= 0Volts
All Pins read 0 Volts no red light indication of teh Power coming on.

Perhaps teh rectifier circuit is bad? I have no schematics so cannot probe down to the component level...
Any Help appreciated

[tahoe]

Re: Samsung UN60J6200AFXZA

All cables put back into position.
With Power applied,
STBY = 0 volts
All pins on connectors to main board and LED strips =0Volts
Checked new LEDs fro Shopjimmy all tested good each with a 27Volt battery

[nomoresonys]

Re: Samsung UN60J6200AFXZA

ok, have to start with standby, so unhook all cables from powerboard, then plug the power cord into powerboard, see if standby is there.

[nomoresonys]

Re: Samsung UN60J6200AFXZA

make sure the screws holding the board down are not loose as they are also the grounds.

[nomoresonys]

Re: Samsung UN60J6200AFXZA

can check for standby voltage on dm851c, see the big stb:8v, on 13v printed in big letters on the board? others things to do, check all diodes in diode mode, probe on each leg, expect around .5xx one way, reverse probes, expect ol or l, check the resistors too, youtube is your friend for how to videos, also check the bottom of powerbard solder joints, check below.