LG 50PW450 Service Manual - Page 73

Check RF emitter operation

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Repair Process-Reference data PDP TV Symptom D. General function defect Check RF emitter operation Making 2010. 11. 16 전자 - 6-2 A28 +3.3V GND 3D_RF_RXD 3D_RF_TXD 3D_RFMODULE_RESET 3D_RFMODULE_DC 3D_RFMODULE_DD GND 3D_RF_GPIO0 3D_RF_GPIO1 3D_RF_GPIO2 3D_L/R_SYNC RF emitter Board 1.Check connector was inserted properly on Main board and RF emitter board. 2. Check whether appear voltage on multi meter when operate RF emitter board. ※ Test Condition for case 3 → Check Point: Pin 12 → TV: power on status → Multi meter: Select DC 10V A28 ⓒ LG Electronics. Inc.2010

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ⓒ
LG Electronics. Inc.2010
Making
전자
- 6-2
PDP TV
Repair Process-Reference data
1.Check connector was inserted properly
on Main board and RF emitter board.
2. Check whether appear voltage on multi meter
when operate RF emitter board.
※
Test Condition for case 3
→
Check Point: Pin 12
→
TV: power on status
→
Multi meter: Select DC 10V
A28
D. General function defect
Check RF emitter operation
Symptom
A28
3D_L/R_SYNC
3D_RF_GPIO2
+3.3V
GND
3D_RF_RXD
3D_RF_TXD
3D_RFMODULE_RESET
3D_RFMODULE_DC
3D_RFMODULE_DD
GND
3D_RF_GPIO0
3D_RF_GPIO1
RF emitter Board
2010. 11. 16