Daewoo DLA-32C7LAB, Service Manual

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Hardware Troubleshooting : SMPS
'CHECKING FLOW ABOUT INFERIOR SMPS' (MODEL NAME : FEL-3237UL)
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3. 5V's Out-put voltage is measured too high or low.
A. Checking open and short of IC10,IC5.
B. Checking open and short of R25,R23.
C. Checking open and short of IC1.
4. 5V's Out-put voltage is work with intermittent mode.
A. Is R12's condition good from open and short?
YES : changing R12. NO : Checking 1.2 and 1.3 items.
(Checking open and short of MAIN BOARD if that 1, 2 and 1.3 items are no problem.)
5. Out-put voltage(DC12v, 24v, 15v) is measured too high.
A. Checking open and short of IC9.
B. Checking open and short of R39, R40.
C. Checking open and short of IC4.