LG CED-8042B Manual page 60

G
Refer to 'F. LD On' of 'How to use
Test Tool (Dragon)' : 'VWDC-2'
Measure LD Power
NO
2.0mW < LD Power< 8.0mW?
YES
P/U Pin 30 (ODON)=H?
YES
P/U Pin 31 (W/XR) : H?
YES
P/U Pin 26 (VWDC2)
: 1.2+/-0.2V?
YES
Check the cold soldering for the P/U
connector and then replace P/U.
NO
OK
NO
Check the cold soldering for the IC202.
NO
Re-flash IC202 and then replace IC202.
Check the cold soldering for the R612,
R626, IC209, IC401, IC407 and then
replace IC209, IC401, IC407.
NO
Check the cold soldering for the R546,
R547, IC503 and then replace IC503.
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