LG SH4 - Sound (Portable Function)

3-3
ONE POINT REPAIR GUIDE
2. POWER ON ERROR
No display or Not working.
2-1. IC608
1) Check 12 VA at L604.
2) If 12 VA is not output, check 25 VA at pin2 of IC608.
3) 1), 2) is OK.  Replace IC608.
2-2. IC605
1) Check 5.1 VA at L603.
2) If 5.1 VA is not output, check 12 VA at pin3, 5 of IC605.
3) 1), 2) is OK.  Replace IC605.
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L603
L603
L604
L604
IC605
IC605
IC608
IC608