Vizio L32HDTV10A Service Manual - Page 25

TROUBLE OF DC-DC CONVERTER Start J1 PIN 9,10,11 Yes J1 PIN 2,3,4,5 Yes U7 pin 5 6 7 8 Yes U4 pin2 Yes U6 pin 3 Yes U14 pin2 Yes U5 pin2 U13 pin2 END CONFIDENTIAL - DO NOT COPY The voltage is about + 5V N0 1.Check power board 2.Check power cable connection J1 N0 The voltage is about + 12V while power switch on 1.J1 connection good 2.Check U9 GPIO Pin 3.Check power board The voltage is about +5V while N0 power switch on 1.J1 connection good 2. Check U9 GPIO Pin N0 The voltage is about +3.3V 1.J1 to connection good? 2.Check U4 N0 The voltage is about +9V 1.Check U9 GPIO Pin 2.Check U6 N0 The voltage is about +2.5V while power switch on 1.Check U9 GPIO Pin 2.Check U14 N0 The voltage is about +1.8V 1.Check J1 Connect 2.Check U5&L5 The voltage is about +1.25V while power switch on 1.Check J1 Connect 2.Check U13 Page 10-5 File No. SG-0182