19
7 Troubleshooting Guide
1R3RZHURU1R'LVSOD\
Press Power Button
of Unit or Remote Control
to Turn ON the Unit
No Display on
FL Panel
Caution:
1. AC Cord Plug-out
2. Check Fuse(F1) = 0 ohm
[ refer to check point -
]
Check Fuse (F1)
Check Primary E-Cap (C5720)
Measured 300V or more
[refer to check point -
]
Check
SMPS Module
Check Secondary Cap. (C5811)
Measured 8V or 13.5V
[refer to check point -
]
Check SMPS Module
Check DC-DC Regulator
IC (IC1103) Measured
3.3V
at
C1187
[refer to check point ]
Change
IC1003
Check DCDC IC
(IC1115)
Measured 1.6V at Pin 1 of LB1105
[refer to check point ]
Change
IC1115
Check Connector (CN1100)
Measured
14.5V
at Pin 6
Check wire
connector
Check DCDC IC
(IC2900)
Measured
14.5V
at C2905
[refer to check point ]
Change
IC2900
OK
OK
OK
OK
OK
OK
OK
NG
NG
NG
NG
NG
NG
NG
5
4
1
2
3
6
Check Regulator IC
(IC1111)
Measured
12V
at pin 1
[refer to check point ]
Change
IC1111
NG
7
IC1003
IC1115
connector
IC2900
Check Regulator IC
(IC1106)
Measured 1.6V at Pin 3 to GND
[refer to check point ]
Change
IC1106
NG
5a
NOTICE:
IC1115 used in PMX150/152 only
IC1106 used in PMX80/82/84 only
NOTICE:
14.5V in PMX150/152 only
12V used in PMX80/82/84 only
Check Boost Regulator
IC (IC1112) Measured
32V
after
D1115
[refer to check point ]
Change
IC1112
Check Connector (CN8001)
Measured
32V
at Pin 17
Check Main PCB
& FFC
If No Display on
FL Panel
Check Panel
PCB
OK
OK
NG
NG
NG
8
IC1111
NOTICE:
PMX150/152 only
Check Connector (CN8001)
Pin 2/3/4 if have any Signal CLK/Data by using
Oscilloscope
Change Main PCB
NG
OK
OK
NOTICE:
32V in PMX150/152 only
12V used in PMX80/82/84 only
&DQQRW3RZHU21GXHWR(UURUFRGH)
Press Power Button
of Unit or Remote Control
to Turn ON the Unit
FL Display
"F76"
Check DCDC IC
(IC1101)
Measured 5.2V at Pin 1 of LB1101
[refer to check point ]
Check DCDC IC
(IC1102)
Measured 5.6V at Pin 1 of LB1103
[refer to check point ]
Check DCDC IC
(IC1115)
Measured 1.6V at Pin 1 of LB1105
[ f
t
h k
i t
]
Check Regulator IC
(IC1106)
Measured 1.6V at Pin1 of LB1112
[refer to check point ]
Check Regulator IC
(IC1104)
Measured 5V at Pin 1 of LB1108
[refer to check point ]
Change
IC1101
Change
IC1102
Change
IC1104
Change
IC1106
Change
IC1115
NG
NG
NG
NG
NG
Note: Need
to
monitor
Voltage
Supply
from
Power
on
will
reach
expected
output
(Recommend
to
use
Digital
Oscilloscope)
OK
OK
OK
OK
9
10
11
5a
Check DCDC IC
(IC1105)
Measured 3.3V at Pin 1 of LB1109
[refer to check point ]
[refer to check point ]
NOTICE:
IC1115 and IC1105 used in PMX150/152 only
IC1106 used in PMX80/82/84 only
Change
IC1105
NG
OK
5
12
