JVC LT32W6HD When turned on I get the blue light on front and here the click but the screen remains black with no flash of the backlights or anything and after a few seconds relay clicks again and the blue light flashes constantly. I do get 24volts at the inverter board between the first and second click and even replaced the inverter board with same results. None of the boards have any markings to show what the wires are as I would like to try and force backlights on. Also the inverter board is the kind of slip in board so I can't really put a bulb on each to check. Anyway I was wondering if anyone would have some advise?
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JVC Black screen
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Re: JVC Black screen
Check pin 12 (ENABLE, same as BL-ON) of the inverter connector to see if it has >2.5VDC.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: JVC Black screen
Originally posted by CraigR View Postbudm, if I hook up and external power source at 2.5 volts to that pin should the lights come on then? Or would I fry something?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
Comment
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Re: JVC Black screen
Well while looking around I found the following "reset" procedure and it actually worked for me so maybe it could help someone else.
Tv jvc lcd hd don't turn on blue liht blinking
For Models: LT-32E479, LT-32EM49, LT-32P679, LT-42X579, LT-42SL89, LT-42EM59, LT-42P789, LT-46SL89, LT-47X579, LT-47EM59, LT-47P789, LT-52X579, LT-52P789 After the TV is powered ON, no video appears and the power LED at the lower left of the TV begins flashing:
Restore the TV's normal function by changing the operating mode. Please follow the procedure below.
PROCEDURE
• 1. Unplug the TV or remove AC power from the TV
• 2. Count to ten, then plug in the TV
• 3. Locate the [Menu], [Vol-] and [Power] button on the TV's side panel
• 4. Using the buttons on the TV's Side Panel, press and hold both the [Menu] and [Vol-] buttons.
• 5. While holding those buttons, press and release the [Power] button one time and count to 3 before releasing the [Menu] and [Vol-] buttons.
• 6. The TV's lower left Blue Power LED will come ON.
• 7. Wait 30 seconds. Confirm that the blue LED on the Lower Left of the TV (not the iPod dock for iPod models) has remained ON during this time.
a. The TV may have turned ON. If so,continue at step 12 b. If the Blue LED on the TV's Lower Left corner remained ON, continue to step 8.
• 8. After confirming that the Blue LED is ON, unplug the TV or remove the AC power from the TV.
a. If the Blue LED on the TV's Lower Left corner is flashing, restart the procedure from step 3
• 9. Count to 10, then plug in the TV
• 10. The TV power should automatically come ON but no picture will appear. Only the blue power LED will be ON
• 11. Wait 40 seconds and the TV picture should appear
• 12. When the TV picture appears, you may begin normal use of the TV. (procedure is complete)
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Re: JVC Black screen
Thanks for the info. Was the TV hit by surges or brown out that caused the main board to get corrupted?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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