Eiki EIP-HDT30 Service Manual page 127

Troubleshooting
Power (AC)
AC
NOISE
FILTER
F901
SW901
FUSE
MAINS
SWITCH
PFC
Power (PFC)
K16A
RL1601
1
2
RL1651
PFC1_SW_PFC2_SW
Lamp-On: H
PF_PFC1/PF_PFC2
Error: L
Check that the lamp drive signals
(PFC1_SW, PFC2_SW) are correct.
Lamp-On: H
K6A
K6B
IC601
SWITCHING
POWER(AC)
PFC12V1
Q1607
PFC12V2
IC1601
Q1657
IC1651
Q1608 Q1658
K16E
7 6 1 2
POWER(DC)
IC602
POWER
CONTROL T601
CONVERTER
TRANSFORMER
PC601
Q611/Q610
PC602
Check that PFC_ON signal is correct.
Power-ON: PFC_ON: H
Standby: PFC_ON: L
K16B
PFC1
CIRCUIT
K16C
PFC2
CIRCUIT
PFC
11 10 4
PFC12V1 voltage is supplyed from Power(DC)
through the thermal switches (SW903, SW904) and
Lamp cover switch (SW902).
-127-
1
K6D
K6C
D681
S16V
D682
S12V
D683
S6V
D684
-6V
Q681
PFC_ON
Power-On:H
X1B X3B
BALLAST2
X2B
X1A X3A
BALLAST1
X2A
If the power failure occurs on the PFC1 or
PCF2 circuit, the detection signal (PF_PFC1,
PF_PFC2) becomes Low.
AV
(PELTIER)
5
1
2
7
9
LAMP2
LP902
LAMP1
LP901