Kalley LTDN40K221TWAM, Service Manual

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5.3 TV won’t Power On
Make Sure Power
source is live
Replace
Power Cord
Check/replace IR
BD or Keypad
PCA
TV won’t power on
Is LED
light?
NO
YES
Check Power
Output
YES
NO
Check Power
Cord
Only
one works
Replace Main
BD
Try Power on by
RC and Button
Neither
works
Both
Work
Power on OK
YES
NO
Replace Power BD
YES
NO
RED
BLUE
Panel Bright
NO
Replace Main BD
NO
YES
Check signal
Source
YES
NO
YES
Replace Panel
(to contact Hisense tech support.)