KDL-40NX725/46NX725
30
TRIAGE CHART
Use this general Triage Chart to determine what may possibly be causing the error before going out to the customers location.
Before you make the service call…
1. Confirm the symptom from the customer.
2. Select that symptom from the chart.
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3. Bring the primary component listed for that symptom.
3D
LAN Power
Audio
2X 3X 4X*
4X** 5X 6X 7X 10X
No
WIFI
Dead set
No Video
Whole
Screen
Distortion
Isolated
Area
Distortion
No 3D
No Audio
Main Board
*
▲
▲
▲
Power Supply
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HEM2
LD
LCD Panel
TCON
WLAN
4. Follow the associated flowcharts in the Training Manual to isolate the board.
Board Reference
Protection Modes
* Immediate Shutdown After Power ON & 7X
4X** No Backlight before Shut OFF
BLUE Triangle: (Secondary) Possible defective part
5. Chart Color Code
RED DOT: (Primary) Most likely defective part
*NOTE:
REFER TO LCD PANEL SERVICE MANUAL IN
REFERENCE LIBRARY DATABASE FOR CORRECT
REPLACEMENT PARTS BASED ON SERIAL NUMBER.
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*
Sharp Vertical or Horizontal Lines, Missing Pixels
4X* Momentary Backlight before Shut OFF
Video