28
PFC
D33, D35, D34, D36,D45,D43,D49,D44,D54,D52
D53,D58,
Diode
Short or open
Q22, Q23,Q59,Q60,Q32,Q43,Q61,Q62,Q57,Q52
Q63,Q64
IGBT
C-E short or open
30k PFC Phase R&S Section
Circuit Block
Checked components
Component Type
Failure condition
Rectifier
Q17,Q18,Q24,Q25,Q21,Q26,Q27,Q49
SCR
A-K Short or open
PFC
D33,D35,D43,D45,D34,D36,D44,D49
Diode
Short or open
Q22,Q23,Q29,Q32,Q37,Q38,Q42,Q43,Q44,Q45,
Q46,Q47
IGBT
C-E short or open
30k PFC Phase T Section
Circuit Block
Checked components
Component Type
Failure condition
Rectifier
Q24,Q25,Q26,Q49
SCR
A-K Short or open
PFC
D43,D45,D44,D49
Diode
Short or open
Q32,Q43,Q44,Q45,Q46,Q47
IGBT
C-E short or open
15k/20k INV Section
Circuit Block
Checked components
Component Type
Failure condition
INV
D17, D18,D34,D32
Diode
Short or open
Q8,Q9,Q10,Q11,Q45,Q46,Q42,Q43
IGBT
C-E short or open
STS
Q13, Q14, Q17, Q18
BYPASS SCR
G-K short or open
(
for
normal condition
,
A-K
is 0ohm
,
G-K is around
40 ohm
)
Q19, Q20, Q21, Q22
ECO SCR
G-K short or open or
A-K is short
(
for
normal condition
,
A-K
is around 440K ohm
,
G-K
is
around
40
ohm
)
SPS
F6
Fuse
Open
Q6, U14,U15
MOSFET
D-S short or open
D3, D4, D5, D6, D7, D8,D9
Power Diode
Short or open
U5, U6, U9, U13
Power IC
I-O short or open
U11
Power Control IC
Vcc short to GND
Others
Q16, Q52, Q12, Q31,Q33,Q30,Q32, Q34
Q3,Q4,Q1,Q2,Q5,Q6
MOSFET
D-S short or open
Содержание G31 10K
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