Samsung PPM42S3 User Guide - Page 10

2-3 Voltage Adjustment Alignment and Adjustments Test Point VR : Variable Resi sto r Pin Connector Output Va Vsc Vs Ve Vse t Vo ltage See the labels attached on the base chassis Fan power sour ce. VR2 Vs Vs CN805 CN812 Ve Va Vset CN804 Vscan Adjust the SMPS voltage using the VR(Var iable Resistor) ( SMPS VR1 Va CN806 CN807 CN808 CN809 CN810 CN802 Validate the SMPS voltage CN801 CN803 SMPS Volume Resistor Adjustment Point 1 Point 4 Point 2 Point 5 Point 3 Point 1 Volume Resistor VR2 VR2 for "Vs" Adjustment VR1 Volume Resistor VR1 Point 2 for "Va" Adjustment Point 3 Point 4 Point 5 Volume Resistor VR6 is a Factory Setting Point. Don' t touch. Test Point for "Vs" Adjustment CN805 CN804 CN 805 Pin No. 9, 10 or CN 804 Pin No. 8, 9 Test Point for "Va" Adjustment CN 812 Pin No. 1, 2 or CN 806 Pin No. 1, 2 CN812 CN806  Notes 1. When the SMPS-PCB is replaced, the Va, Vsc, Vs, Ve and Vset voltages must be checked and adjusted to the proper levels indicated on the panel sticker. Samsung Electronics 2-7