N501 has been replaced already
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SonOfAnarchy ZA
Member
Last Activity: 03-22-2018, 12:33 AM
Joined: 12-14-2016
Location: JHB
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Re: MP 42HC56 SINOTEC 42 lcd
N501 has been replaced already...
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Re: MP 42HC56 SINOTEC 42 lcd
Thank you i will check when I am back at the on monday...Leave a comment:
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Re: MP 42HC56 SINOTEC 42 lcd
295v...Leave a comment:
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Re: MP 42HC56 SINOTEC 42 lcd
222VAC according to my multimeter...Leave a comment:
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Re: MP 42HC56 SINOTEC 42 lcd
300vdc...Leave a comment:
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Re: MP 42HC56 SINOTEC 42 lcd
Yes on both counts...Leave a comment:
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Re: MP 42HC56 SINOTEC 42 lcd
No still 10v...Leave a comment:
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Re: MP 42HC56 SINOTEC 42 lcd
not sure where that 5v comes from...Leave a comment:
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Re: MP 42HC56 SINOTEC 42 lcd
No there is only 1v there...Leave a comment:
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Re: MP 42HC56 SINOTEC 42 lcd
that been said i see n503 is also missing but the diagram recons it must be thereLeave a comment:
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Re: MP 42HC56 SINOTEC 42 lcd
i see there is no resistor on R502 but doesnt look like there ever was on according to the circuit diagram there should be a 10k according to your data sheet that pin controls peak current limit should i put a 10k in and see if it works?...Leave a comment:
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Re: MP 42HC56 SINOTEC 42 lcd
perhaps something else is in short i will have another look thanks...Leave a comment:
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Re: MP 42HC56 SINOTEC 42 lcd
it goes from 0v to 9v then back to 0V and repeat...Leave a comment:
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Re: MP 42HC56 SINOTEC 42 lcd
i replaced the Cap replaced no change in voltage...Leave a comment:
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Re: MP 42HC56 SINOTEC 42 lcd
2vDC anode
0v cathode
n506 has been replaced...Leave a comment:
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Re: MP 42HC56 SINOTEC 42 lcd
Pin 2 Has 10VDC
Pin 5 Has 184VDC
R597 and R598 measure 68kOhm according to the circuit diagram they should be 47KOhm...Leave a comment:
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Re: MP 42HC56 SINOTEC 42 lcd
which supplier did you contact? i have received the correct parts with no luck still dead as a door knob...
Leave a comment:
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Re: MP 42HC56 SINOTEC 42 lcd
Yes it is the exact power supply. i Have ordered that specific chip from China will let you know if it works outLeave a comment:
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Re: MP 42HC56 SINOTEC 42 lcd
I replaced that cap with no luck. i found a 16v zener diode in short (D502) replaced it but no luck is it possible N501 is faulty?...Leave a comment:
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Re: MP 42HC56 SINOTEC 42 lcd
and 280vDC across the two filter capsLeave a comment:
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