Alignment and Adjustments
2-18
Samsung Electronics
CN805
CN804
CN812
CN806
(
SMPS
CN807
CN808
CN809
CN810
CN802
CN801
CN803
Fan power sour ce.
VR2
Vs
VR1
Va
Adjust the SMPS voltage
using the VR(Var iable
Resistor)
Test Point
VR : Variable Resi sto r
Pin Connector
Output
Va
Vsc
Vs
Ve
Vse t
Vo ltage
See t he labels attached on the base chassis
Validate the SMPS
voltage
Vscan
Va
Ve
Vs
Vset
☞
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.
2. Whenever the SMPS is changed the 18V line(Vamp) must be checked and adjusted to the proper level.
SMPS Volume Resistor Adjustment
Point 1
Point 2
Point 3
Point 4
Point 5
Point 1
Volume Resistor VR2
for "Vs" Adjustment
Point 2
Volume Resistor VR1
for "Va" Adjustment
Point 3
Volume Resistor VR6 is a Factory Setting Point. Don’ t touch.
Point 4
Test Point
for "Vs" Adjustment
CN 805 Pin No. 9, 10 or
CN 804 Pin No. 8, 9
Point 5
Test Point
for "Va" Adjustment
CN 812 Pin No. 1, 2 or
CN 806 Pin No. 1, 2
CN812
CN806
CN805
CN804
VR1
VR2
Summary of Contents for HPP5071X/XAA
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