30
ChecktheFUSEcondition.
・
FUSE F101
Check.VSTBYoutput.
・
Voltagecheck.
.VDC(non-switched)voltageisO..
(P213)
※
.V
Checkpartsandsoldering.
・
U (STR-A609)
・
T2 (SWTRANS)
・
U6 (PC817)
・
U8 (TL431)
andothercircuits.
Check12Voutput.
・
Voltagecheck.
12VDC(non-switched)voltageisO..
(
P
1
)
CheckVAoutput.
・
Voltagecheck.
VDC(non-switched)voltageisO..
・(
P2
)
Checkparts(surrounding)andsoldering.
・
SUBPOWERUNITisfault.
TROUBLE SOOTING
1. POWER UNIT
Thepowercannotbeturnedon.
CheckONofMEIN
SMPS
・
Is67switched
Checkparts(surrounding)andsoldering.
・
67 (DTS114EUA)
・
U2U7 (PC817)
andothercircuits.
CheckPsOninput.
(P42)
※
PresstheONSTANDBYbuttontocheck.
Normally3.3Visoutput.
※
Oif3.3Visoutputevenmomentarily.
Checkparts(surrounding)andsoldering.
・
P4 (1PINFFC1.0mm)
MAINUNIT
・
U16 (CS8966F-PFP447)
andothercircuits.
CheckACDETsignaloutput.
(P41)
(AC0 0(.Vp-p))
(AC60 60(.Vp-p))
Checkparts(surrounding)andsoldering.
・
D11D12 (IN4007)
・
U4 (PC817)
andothercircuits.
Defectofprimarycircuitcomponent.
・
BD1 (RBV106)
・
IC1 (STR-W673)
・
U (STR-A609)
・
T1 (EER28(SWTRANS))
・
T2 (EI16(SWTRANS))
andothercircuits.
Checkparts(surrounding)andsoldering.
・
IC1 (STR-W673)
・
T1 (EER28(SWTRANS))
・
U1 (PC817)
・
U3 (TL431)
・
D8 (FMEN-210A)
andothercircuits.
END
N.G.
N.G.
N.G.
N.G.
N.G.
N.G.
N.G.
O..
O..
O..
O..
O..
O..
O..