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Speaker
Jack for Speaker connection
1.Check whether speaker jack was inserted properly on Main B/D side & speaker side or not.
2. Check whether speaker cable have problem (disconnection wire) or not.
2. Check whether speaker cable have problem (disconnection wire) or not.
A25
Making
Revision
PDP TV
Symptom
Repair Process-Reference data
Speaker cable checking method
C. Sound Problem
A25
Making
Revision
PDP TV
Symptom
D. General function defect
Repair Process-Reference data
1.Check connector was inserted properly
on Main board and IR board.
2. Check +3.3V_ST Voltage at Pin10
3. Check whether appear voltage on multi meter
when operate remote control.
※ Test Condition for case 3
→ Check Point: Pin 1( IR)
→ TV: power on status
→ Multi meter: Select DC 10V
→ TV: power on status
→ Multi meter: Select DC 10V
▣ Checking method
Check Remote control IR operation
IR & Local key Board for 2/3/4/550 TOOL
IR Board
A26
A26
TOUCH_VER_CHK
NC
NC
IR
GND
KEY1
KEY2
KEY2
LED-RED
GND
SCL
SDA
GND
3.3V ST
NC
NC
Making
PDP TV
Repair Process-Reference data
1.Check connector was inserted properly
on Main board and IR board.
2. Check whether appear voltage on multi meter
when operate Local switch.
※ Test Condition for case 3
→ Check Point: Pin 2,3( Key1,Key2)
→ TV: power on status
→ Multi meter: Select DC 10V
→ TV: power on status
→ Multi meter: Select DC 10V
A27
P+
P-
Vol+
Vol-
OK
Menu
Input
Power
D. General function defect
Check Local Key operation
Symptom
A27
TOUCH_VER_CHK
NC
NC
IR
GND
KEY1
KEY2
KEY2
LED-RED
GND
SCL
SDA
GND
3.3V ST
NC
NC
IR & Local key Board for 2/3/4/550 TOOL
Making
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
→ 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
3D_RFMODULE_DD
GND
3D_RF_GPIO0
3D_RF_GPIO1
3D_RF_GPIO1
RF emitter Board