Re: Mag 780 LT1776s not working then works then not
Is U2 pin 2 the 2nd pin clockwise from the two 45 degree angled corner?
ubuntubill
New Member
Last Activity: 11-19-2014, 03:47 PM
Joined: 11-13-2014
Location: Russellville, AR
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Re: Mag 780 LT1776s not working then works then not
Here's a photo fo the main board & it's numbers:
[URL=http://s278.photobucket.com/user/wnshaw/media/DSCN1860.jpg.html][/URL]Leave a comment:
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Re: Mag 780 LT1776s not working then works then not
inverter board #'s
MPT
M074
849-40M-0770
Main board #'s
HI4-04
022686
Pin 4 0v in all situtations.Leave a comment:
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Re: Mag 780 LT1776s not working then works then not
Can a schematic of the main board for the circuit to the lead for #4 pin be provided?Leave a comment:
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Mag 780 LT1776s not working then works then not
Black sreen when on w blinking power light. No functions from Menu.
So, I disassembled it & saw no visible defects. Reassembled & read voltages at inverter connection w vga connected & PC on:
Connector voltages:
Pin1: 0V DC
Pin2: 0V DC
Pin3: 2.68V DC
Pin4: 3.67V DC
Pin5: 12.0V DC
Pin6(red): 12.0V DC
Viola! The monitor works again. Upon reassembly, black sreen when on w blinking power light. No functions from Menu.
Connector voltages:
Pin1: 0V DC
Pin2: 0V DC
Pin3:... -
Re: New Members - please post your introductions here
Hi all,
Retired engineer locing for some assistance from time to time.
Thanks in advance,
BillLeave a comment:
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