Re: No power bn44-00440b
What should these be in circuit?
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Re: No power bn44-00440b
A-B: 135 ohms both directions
C-D: 1.5 Mohm reverse 2 Mohm
Both starting caps: 5 ohms
snubber diode: 46.8 kohms
P/N of the STBY SMPS IC: looks like D8230DS or DB230DS but I couldn't find online as it was difficult to read.
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Re: No power bn44-00440b
Do I need to lift a lead or are these static in place checks?
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Re: No power bn44-00440b
Both fuses good and 165VDC. If I am remembering correctly. All caps look good and no scats usually makes it harder to find the problem. Are there no schematics.
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Re: No power bn44-00440b
On my BN44-00440B, I have 0v on my A5v pin at connector. Seem like AC side is good....
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Re: No power bn44-00440b
Are you sure the schematic you have is for BN44-00440A? [COLOR="Blue"]No[/COLOR]
Pin 13 is NOT standby Voltage pin, it is Swithced 5V (B5V).
The standby 5V pin is A5V (Always 5V).
It is not the for BN44-0440A.[COLOR="blue"]I need schematic for BN44-0440B
[/COLOR]
I f you look at the Title block you will see 'I40F1_ADY' which is the diagram for BN44-00340B[COLOR="blue"]You are correct. So where can I get the BN44-00440A but preferably the B schematics?[/COLOR]
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No power bn44-00440b
LN40D503F6F with no standby voltage(or light). No standby voltage on pin 13 (disconnected nor connected). Found the BN44-00440A schematics however some of the part have changed on the board. (ex connector CN802 on 00440A is an 18 pin and the 00440B is a 14 pin). Scats would be helpful and thanks.
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Search in forum no results
I have tried to search in the forum for BN44-00440B and results have come back as no results. However, I search in Google and this forum populates the Google search which led me here in the first place. Any suggestions? Is this a setting issue?
Originally came here for a LN40D503F6F with no standby voltage(or light). No standby voltage on pin 13 (disconnected nor connected). Found the BN44-00440A schematics however some of the part have changed on the board. (ex connector CN802 on 00440A is an 18 pin and the 00440B is a 14 pin). Scats would be helpful and thanks.Last edited by JAMMASTER110489; 07-22-2016, 05:17 AM.
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Re: New Members - please post your introductions here
My name is Jay. I did 20 years as an electronics tech in the navy. From test equipment calibration, radars, networking cpus, setting up telephones and cable systems, engineering school and now a shipyard electronics worker.
Stumbled across this trying to fix my LN40D503F6F with a BN44-0040B power supply. Still looking for schematics to troubleshoot no standby power / no turn on.
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