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|File name:||inverter_modification_748.pdf |
[preview 42PFL7422D/37] new window
|Descr:||This is the repair/mod for the inverter card.|
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|inverter_modification_748.pdf||LG inverter modification "II"
Ref. nr. SCC_73709 Doc. version 1.2 October 30, 2009
COMPONENT KIT (996500095005)
The Component Kit includes the following components (for Master & Slave) : · TVS zener diode (33 V) · MLCC capacitor (100 pF) · Resistor (DIP type or SMD) 4.7 x2 x2 x4
Confirm Inverter model name:
· It does not matter if the zener diode (modification "I") exists or not for inverter modification "II".
Cut tracks: - Cut the SW1 & SW2 tracks on both inverters. - Confirm that there are no short circuits with metal pieces of tracks, and there is no damage to other tracks !
1. Check the secure cut line (SW1 & SW2) by visual inspection first:
Visual inspection to verify if cut well and not damaged.
2. Check the resistance between two `via' holes of the cut SW line:
Measure the resistance of the cutted SW1 & SW2 line through |
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