sony kdl-46w5100 no red light standby, on green off red light flash 14 times

[budm]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

CN6702 of which board?

[mydang]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

hi! Budm
TV turn on,at CN6702 no 12volt at REG 12v pin so what is wrong? and why i do not have volt at REG 12v pin ? Thx

[budm]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

Hi! Budm more understand when i look at D1N inverter board , may i have one power supply detail like D1N i google but i canot find if you have send me one please
Thx

I do not understand, I already provide the schematic for the D1N board in post 10 and also the training manual in post 21.
And D2N on this post.

"may i have one power supply " what one power supply? what is the P/N as printed on the board?

[mydang]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

Hi! Budm more understand when i look at D1N inverter board , may i have one power supply detail like D1N i google but i canot find if you have send me one please
Thx

[budm]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

But on that connector you suppose to have PFC Voltage around 390Vdc also for the inverter circuit.
BL-ON is from the main board, <1V = off, >2V = ON.

[mydang]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

Hi! Budm so far i look at schematic D1N inverter when tv on i should have 12v volt at REG 12v of CN6702 i do not have volt at BL-on because it connect to REG 12v i will trace and test let you know

[mydang]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

'Backlight' = bl-on is the command signal from the main board to turn on the inverter circuit. You should leave he meter on that pin then turn TV on to see if the Voltage jumps up for seconds or not.
((TV On or Off checked BL-on no voltage,,usually how many volt go to this Bl-on pin ? and where is the voltage come from inverter or from power su board?
Although tv on or off, THE PROLEM IS NO VOLT at BL-on

Thx Budm

[mydang]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

INV-ERR is generated by the inverter circuit to tell the main board if there is problem in the inverter circuit or not. From my research, the normal Voltage of the INV-ERR should LOW if there is no problem with the inverter circuits.
'Backlight' = bl-on is the command signal from the main board to turn on the inverter circuit. You should leave he meter on that pin then turn TV on to see if the Voltage jumps up for seconds or not.

So did you replace that shorted out zener diode? Did you check the fusible resistor R6636? Did you check the Voltage by leaving the meter probe on the each pin of the connector CN660 when turn on the TV each time to see what you get, if look at the schematic I provided for the D1N board you can see that CN660 shows what Voltage you should have on the connector.

BTW, so far I do not see the pictures of the whole backside of the TV showing all the boards as requested.

D2N inverter board also has the same Zener diode on the VCC pin to clamp the Voltage on the VCC pin of the IC, you may want to check them out too.
Your TV uses two inverter boards for driving the lamps in push-pull mode so if one inverter board is bad you will see the screen lights up for seconds on one half of the screen (I.E left half or right half of the screen) that has good inverter board, did you notice that when you first turn on the TV? you have to do that in darken room.

---------------
INV-ERR is generated by the inverter circuit to tell the main board if there is problem in the inverter circuit or not. From my research, the normal Voltage of the INV-ERR should LOW if there is no problem with the inverter circuits.
'Backlight' = bl-on is the command signal from the main board to turn on the inverter circuit. You should leave he meter on that pin then turn TV on to see if the Voltage jumps up for seconds or not.

So did you replace that shorted out zener diode?=(I do not have 15v zener diode in my hand, temporary just replaced one took off from different board but I donot know value of volt)I alrady order ebay and waiting- Did you check the fusible resistor R6636? (I check R6636 good and has continuity)Did you check the Voltage by leaving the meter probe on the each pin of the connector CN660 when turn on the TV each time to see what you get, if look at the schematic I provided for the D1N board you can see that CN660 shows what Voltage you should have on the connector. (CHECKED cn660-pri-vcc- 12v tv on) will check pfc and let you know thx

BTW, so far I do not see the pictures of the whole backside of the TV showing all the boards as requested.

D2N inverter board also has the same Zener diode on the VCC pin to clamp the Voltage on the VCC pin of the IC, you may want to check them out too. I will check vcc ic pin connect to zener diode and let you know Thx
Your TV uses two inverter boards for driving the lamps in push-pull mode so if one inverter board is bad you will see the screen lights up for seconds on one half of the screen (I.E left half or right half of the screen) that has good inverter board, did you notice that when you first turn on the TV? you have to do that in darken room.
I WILL FOLLOW YOUR INTRUCTION AND CATCH UP STEP BY STEP FROM YOUR HELP Thank Budm

[budm]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

INV-ERR is generated by the inverter circuit to tell the main board if there is problem in the inverter circuit or not. From my research, the normal Voltage of the INV-ERR should LOW if there is no problem with the inverter circuits.
'Backlight' = bl-on is the command signal from the main board to turn on the inverter circuit. You should leave he meter on that pin then turn TV on to see if the Voltage jumps up for seconds or not.

So did you replace that shorted out zener diode? Did you check the fusible resistor R6636? Did you check the Voltage by leaving the meter probe on the each pin of the connector CN660 when turn on the TV each time to see what you get, if look at the schematic I provided for the D1N board you can see that CN660 shows what Voltage you should have on the connector.

BTW, so far I do not see the pictures of the whole backside of the TV showing all the boards as requested.

D2N inverter board also has the same Zener diode on the VCC pin to clamp the Voltage on the VCC pin of the IC, you may want to check them out too.
Your TV uses two inverter boards for driving the lamps in push-pull mode so if one inverter board is bad you will see the screen lights up for seconds on one half of the screen (I.E left half or right half of the screen) that has good inverter board, did you notice that when you first turn on the TV? you have to do that in darken room.

[mydang]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

Budm please tell me how come the BACKLIGHT pin even stand by and power on no Dc voltage on that pin, i think it should have volt to kick on backlight for tv

[mydang]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

BTW, check the fusible resistor that feed that VCC pin of the IC.
Also, are you sure it was 14-blink code?

Yes bubm i double check again red light linking flash 14 time then stop hafl second then flash 14 time then stop and keep flash every 14 times
thax

[budm]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

BTW, check the fusible resistor that feed that VCC pin of the IC.
Also, are you sure it was 14-blink code?

[mydang]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

Thank Budm your help is appreciated

[budm]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

You can, you just have to solder it in place properly.

[mydang]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

Can we get good clear straight shot pictures of the whole bottom side of this DN1 board?
SONY D1N_1-878-620-12
D6615 SONY P/N 6-501-776-01 DIODE P/N MAZ8150GMLS0 (15V Zener)

Hi! Budm
i attached the picture for you to look
can i use this kind of zener diode to replace D6615 instead of MAZ8150GMLS0
Thx

[mydang]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

Can we get good clear straight shot pictures of the whole bottom side of this DN1 board?
SONY D1N_1-878-620-12
D6615 SONY P/N 6-501-776-01 DIODE P/N MAZ8150GMLS0 (15V Zener)

Thank I understand what is diode i need sorry i am new here to learn

[budm]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

See post #10

[mydang]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

Can we get good clear straight shot pictures of the whole bottom side of this DN1 board?
SONY D1N_1-878-620-12
D6615 SONY P/N 6-501-776-01 DIODE P/N MAZ8150GMLS0 (15V Zener)

Thank you for your help look clear , please tell me what value smd diode to replace for D6615

[mydang]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

Can we get good clear straight shot pictures of the whole bottom side of this DN1 board?
D6615 SONY P/N 6-501-776-01 DIODE P/N MAZ8150GMLS0

thank here is the whole picture dn1

[budm]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

Can we get good clear straight shot pictures of the whole bottom side of this DN1 board?
SONY D1N_1-878-620-12
D6615 SONY P/N 6-501-776-01 DIODE P/N MAZ8150GMLS0 (15V Zener)