Sony KDL-32BX320 Service Training Manual page 71

Sony KDL40BX421 Technical Triage Summary Sheet
Before you make the service call...
1. Confirm the symptom from the customer.
2. Select that symptom from the chart.
3. Bring all the boards listed for that symptom.
4. Follow the troubleshooting charts in the technical guides to isolate the board.
5. Chart Color Code
RED DOT: Most likely defective part
BLUE TRIANGLE: Secondary possible defective part
BLACK TEXT: Board and Part # that may correct the symptom
blinking red diagnostics
Reference
A BOARD
G14 BOARD

H BOARD
▲
LCD Panel
Problem POWER POWER PANEL
KDL-32BX320/32BX321/32BX420/32BX421/40BX420/40BX421/46BX420/46BX421
y p
Power LED
No
Power
No Green
Power LED
2 3 5 6 7
(Dead Set)
▲
   
▲ ▲

 
 
INV TEMP
FIGURE APPENDIX A-5. KDL-40BX421 MODELS ONLY
Video - missing or distorted Remote
Stationary
Video 2 No video No
colored lines Tuner Only
0nly all Inputs Remote
or dots
  
 
▲ ▲
CHASSIS: AZ2UK
LAST UPDATED:
Audio
No Audio
Part #
1-857-903-61
(FOR US/CND MODELS)

1-857-903-51
(FOR MX/LA MODELS)
1-474-310-11
1-857-898-21
SEE LCD PANEL
MANUAL
1/18/11
REF #
155
156
57
A-5