Re: when i turn on, Philliips TV is not on
Is there anything I can do with it?
Nish
Senior Member
Last Activity: 06-22-2021, 11:18 AM
Joined: 09-27-2013
Location: St-Laurent
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Re: when i turn on, Philliips TV is not on
Here I have attached images with voltage...Leave a comment:
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Re: when i turn on, Philliips TV is not on
Is there anything I can check please?Leave a comment:
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Re: when i turn on, Philliips TV is not on
Ok sorry about that. I mislead you.
No I do not have PANEL+24V and P-ON+12V at the connector.
I have attached the picture of voltage now....Leave a comment:
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Re: when i turn on, Philliips TV is not on
Should be the regulator IC902 is not functioning.
But the IC902 pins are reading the below voltage.
IC902
Pin1 = 2.527v
Pin2 = 19.19v
Pin3 = 0v (gnd)
Pin4 = 16.24v (output)
Pin5 = 1.29v
Pin6 = 0v (gnd)
Is this IC not working? I am confuse....Leave a comment:
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Re: when i turn on, Philliips TV is not on
To supply voltage to IC801 and IC601. That's what I think....Leave a comment:
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Re: when i turn on, Philliips TV is not on
What should I do?Leave a comment:
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Re: when i turn on, Philliips TV is not on
When I measure resistance, I did not get resistance. I thought bad resistor.Leave a comment:
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Re: when i turn on, Philliips TV is not on
IC801 pin12 = 16.18v
IC601 pin12 = 16.24v
Q802 =0.659v
Q800 = 0v
I will replace R818 and see...Leave a comment:
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Re: when i turn on, Philliips TV is not on
IC902
Pin4 = 16.42
Pin5 = 1.27
IC601 PIN12= 16.24Leave a comment:
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Re: when i turn on, Philliips TV is not on
I try to buy the regulator. I couldn't find this ic. I have attached the picture....Leave a comment:
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Re: when i turn on, Philliips TV is not on
Before install 1k resistor
PC902
Pin4 = 16.22
Pin3 = 15.55
C906 = 16.20
After 1k resistor install
PC902
Pin4 = 19
Pin3 = 18.55
C906 = 19
Output voltage of IC902 = 0.053v and goes to 0v right away.Leave a comment:
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Re: when i turn on, Philliips TV is not on
I put 1k resistor to connect P-ON-H1 to AL+5V.
Now reading
C912 = 13.40
C906 = 18.96
C951A = 5.56
Across ZD907 = 1.30
No voltage at output of IC902Last edited by Nish; 02-07-2020, 11:58 AM.Leave a comment:
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Re: when i turn on, Philliips TV is not on
Across C906 = 16.20 solidLeave a comment:
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Re: when i turn on, Philliips TV is not on
I have replaced R954. Now the voltage attached images.
Across ZD907 = -3.0v
Across C906 = 16.20 solid
Across C912 = 11.21 solid
Across C951A =5.38...Leave a comment:
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Re: when i turn on, Philliips TV is not on
Sorry, I didn't have internet for 3 days....
No I didn't replace C951.
R952 = 1.991k
R954 = 6.01k
R955 = 2.951k
"*set the voltage for the reference pin on ic951." Am I using external power supply at what voltage, while the board plug in the outlet? I am confused...Leave a comment:
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Re: when i turn on, Philliips TV is not on
Is there anything I can do further with this board?Leave a comment:
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Re: when i turn on, Philliips TV is not on
Yes I put back the original one...Leave a comment:
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Re: when i turn on, Philliips TV is not on
I install jumper at J14. The C951A ground and IC951 ground are connected together. Now I have IC901 cathode is 6.60v and ref is 1.4v. PC901 still pin 1 and 2 are 6.20v.
I checked around IC951
R955 = 1.4v
C955 = 1.4v (which is connected to ref of IC901)
C954 = 1.4v (which is connected to ref of IC901)
ZD907 = -5v...Leave a comment:
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Re: when i turn on, Philliips TV is not on
I am outside now, I will do the jumper and update later. Thanks...Leave a comment:
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