Have a star logic hd20w 20.1 in monitor. The initial issue was horizontal flickering lines but when i took it apart and tested the lamps on the inverter it went 2 seconds to black. I ordered a ccfl tester and the lamps tested fine which points at the inverter board. By the picture how would I go about ohming the transformers as far as pin orientation and what are thoughts. thanks!
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Re: Star Logic
Nice job cutting the picture off might have helped to see how many bulbs.
In the absence of a part number you will have to do it the long way. Power off
Meter on ohms 2000 number the pins 1 to ten and test 1>2 1>3 to 1>10
then 2>3 2>4 2>5 to 2>10 and so on untill you find pins that check at 600-1200 ohms
(Unusually could be lower ie 300s) Then chsck just those pins on the other big transformers. Post the results. Hermei caps are not great and may contribute to the problem as might the yellow going brown glue on the black cap.Please upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740
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Re: Star Logic
Sorry bout the pics. The P/N=SC1C1001602A.Haven't had a chance to check any voltages yet. ESR meter shows good caps on inverter board.
There's 6 lamps 3 on each side.
T1 (2000ohms)
Pin 1-2=.0003 Pin 2-3=.0003 Pin 3-4=.0003 Pin 4-5=.0003 Pin 5-6=.0003
Pin 1-3=.0003 2-4=.0003 3-5=.0003 Pin 4-6=.0003 Pin 5-10=OL
1-4=.0003 2-5=.0003 3-6=.0003 Pin 4-10=OL
1-5=.0003 2-6=OL 3-7=OL
1-6=.0003 2-7=OL 3-8=OL
1-7=OL 2-8=OL 3-9=OL
1-8=OL 2-9=OL 3-10=OL
1-9=OL 2-10=OL
1-10=OL
Pin 7-8=.0003 8-9=.2590 9-10=.0002
7-9=.2590 8-10=.2596
7-10=.2590
T2 and T3 are the same
CE1(2000ohms)
Pin 1-2=.0116 pin 2-3=.2590 3-4=.2592 4-5=.0115 5-6=2709
1-3=2705 2-4=.0002 3-5=.2710 4-6=.2596
1-4=.0116 2-5=.0116 3-6=.0001
1-5=.0230 2-6=.2594
1-6=2705
CE3 same as CE1
CE2 1-2=.0112 2-3=.2687 3-4=.2689 4-5=.0113 5-6=.2583
1-3=.2574 2-4=.0224 3-5=.2579 4-6=.2693
1-4=.0113 2-5=.0112 3-6=.0001
1-5=.0002 2-6=.2688
1-6=.2576
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Re: Star Logic
Sorry, I cant unravel all that lot perhaps 2000ohms was too low the idea is to locate the secondary wiring which feeds the lamps you may be able to work back from the lamp sockets/connections.The values should be within 3% each transformer drives 2 lamps.
Did you search for other threads? like this
https://www.badcaps.net/forum/showthread.php?t=10275Please upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740
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