LG 50PX950-UA / 50PX950-UF (CHASSIS:PU02B) Service Manual ▷ View online
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USB Trouble Shooting
Check USB 2.0 Cable for damage or open
conductors
Check IC1101/2 voltage level 5V
Y
N
Replace IC1101/2
Check P1101/2
Replace P601
Y
N
Replace BCM3549XS (IC501)
Y
• Exception
- USB power could be disabled by inrushing current
- In this case, remove the device and try to reboot the TV (AC power off/on)
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3D mode view error (no Depth , like 2D mode) Trouble Shooting
Change the 3D Glasses
Check 3D_Sync Line
-Main P704 4 pin
- formatter R108
Y
N
Replace IR emitter B/D
Check 3D Emitter of Main – P704 1 pin : 5V
Check 3D Emitter of IR Assy – 1 pin : 5V
Y
N
Maybe FPGA has problems.
Replace it or 3D formatter B/D
Y
N
Replace 3D Glasses
Replace 3D Emitter Assy
N
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3D mode view error (no Depth , like 2D mode) Trouble Shooting
Change the 3D Glasses
Check 3D_Sync Line
-Main P704 4 pin
- formatter R108
Y
N
Replace IR emitter B/D
Check 3D Emitter of Main – P704 1 pin : 5V
Check 3D Emitter of IR Assy – 1 pin : 5V
Y
N
Maybe FPGA has problems.
Replace it or 3D formatter B/D
Y
N
Replace 3D Glasses
Replace 3D Emitter Assy
N
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3D mode view error (no Depth , like 2D mode) Trouble Shooting
Change the 3D Glasses
Check 3D_Sync Line
-Main P704 4 pin
- formatter R108
Y
N
Replace IR emitter B/D
Check 3D Emitter of Main – P704 1 pin : 5V
Check 3D Emitter of IR Assy – 1 pin : 5V
Y
N
Maybe FPGA has problems.
Replace it or 3D formatter B/D
Y
N
Replace 3D Glasses
Replace 3D Emitter Assy
N