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Sylvania LC320SS9 Flashing Green LED
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Re: Sylvania LC320SS9 Flashing Green LED
Originally posted by Mr Bill View PostDo all the transformers read 5.3 Mohm with your meter set to 20M?Last edited by heavymachines; 10-22-2012, 01:31 PM.
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Re: Sylvania LC320SS9 Flashing Green LED
Originally posted by heavymachines View Postyep they do but it starts off at 12. something and stops at 7.6 m ohm soo? not 5.3 sorry
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Re: Sylvania LC320SS9 Flashing Green LED
Originally posted by Jerry7591 View PostHi guys! same problem with mine here. I'll keep checking things till I figure it out and re-post.
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Re: Sylvania LC320SS9 Flashing Green LED
Originally posted by Jerry7591 View PostNada Buddie. Still burning on it. Hope you got that Sharp going. My diodes are good on psu board. Thanks!
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Re: Sylvania LC320SS9 Flashing Green LED
OK
1) the transformer resistance reading, it will show real high resistance because you are reading the lamp terminals not at the transformer terminals, the blue ballast caps are connected between the transformer output winding and the lamp, the cap is an open circuit device, you need to read at the transformer's terminals.
2) Do get DC reading on the Cathode side of the three Diode you replace? Black probe on the chassis, red probe on the Banded (Cathode) side of the Diode.
3) You need to check the sub-power supply on the main board also, you can see a bunch of black body diodes by the switching transformer.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809
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Re: Sylvania LC320SS9 Flashing Green LED
the three diodes are fine in this set unsoldered and tested and shows readings one way and not the other all three of them...at the ccfl connectors, only way i can get a reading is set my dmm to 20m ohms and readings are starting from top transformer 1 to 5 5 being bottom
1. 9.0
2. 7.89
3. 6.5
4. 8.9
5. 5.65
thing is it never stays put it has fluctuations from 15.0 to 5.6 all over on pretty much all 5... its weird....but that's pretty low resistance anyhow.
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Re: Sylvania LC320SS9 Flashing Green LED
The big board to the right of the inverter board as shown in Bill post 1, it has Tuner and input jacks on that board, as you can see, it is sub- power supply/Main board. You can see a yellow transformer and a bunch of Diodes, If any one of them read both ways, then you should lift one leg off the board and take reading again, common Diode failure on this board also, beside the bad inverter/power board.
Unless your TV is not the same as shown by Bill.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809
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Re: Sylvania LC320SS9 Flashing Green LED
Originally posted by budm View PostThe big board to the right of the inverter board as shown in Bill post 1, it has Tuner and input jacks on that board, as you can see, it is sub- power supply/Main board. You can see a yellow transformer and a bunch of Diodes, If any one of them read both ways, then you should lift one leg off the board and take reading again, common Diode failure on this board also, beside the bad inverter/power board.
Unless your TV is not the same as shown by Bill.
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Re: Sylvania LC320SS9 Flashing Green LED
heavy,bill,bud> Still making no headway with this poor design. Following you guys for direction. I get a couple green blinks and can hear H.V shut down on secondary power board at transformer. This one is driving me nuts. It's got to be something simple. This T.V looks like it's new inside. We'll get her. Thanks guys for all info,and posts
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Re: Sylvania LC320SS9 Flashing Green LED
Originally posted by heavymachines View Postokay update tested all diodes on inverter board and all tested good, checked the bulbs are ok they light up, does have signs of age but still good and its the u type... now checking power/tuner board will report back....
also it took me good portion of the day to test these crazy amounts of diodes on this set. and all solder joints are good.....
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Re: Sylvania LC320SS9 Flashing Green LED
Can I get good pictures of both sides of the inverter board, the whole board both sides, then 1/4 shot of board (both sides) so I can see the traces to figure out how it works.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809
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