Download Samsung Panel Repair V1.7 PDF

TitleSamsung Panel Repair V1.7
TagsResistor Capacitor Electronic Circuits Field Effect Transistor Printed Circuit Board
File Size13.2 MB
Total Pages35
Document Text Contents
Page 34

PANEL SCREEN LTJ400HV01-J
TCON: SH120PMB4SV0.3
FAULT: Image trembling, double vertically, horizontal lines on all/partial screen
USED ON Samsung 3D TV, D series, Class 6-8 (EX: UE40D6530)
Repair procedure: First step is to find which part of the screen is fault.
Disconnect left FFC between T-con and left PWB and power the tv. If you have now
on right part of the screen a normal image, means that you have a fault in left side of
the cell. If still a fault image, re-connect the left FFC and disconnect right FFC
between T-con and left PWB and power the tv. If you have now on left part of the
screen a normal image, means that you have a fault in right side of the cell. On upper
image, there is a problem in the right side gate screen driver.
NOW WE KNOW WHICH GATE DRIVER FAULTS (LEFT OR RIGHT), so we
will step in with repair, only on fault side

On the side with problems , remove from PWB the resistors RM1-RM7, in this
order: first remove the CKV1 and CKVB1 resistors RM2 and RM5 and see any
improvements. If not, remove CKV2 and CKVB2 resistors RM2 and RM6, check if
any improvements, and if not, remove CKV3 and CKVB3 resistors RM3 and RM7. If
still no improvements, remove STVP resistor, RM1 see picture.

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