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7 Troubleshooting Guide
Press Power Button
of Unit or Remote Control
to Turn ON the Unit
Check DC-DC Regulator
OK
IC (IC1103) Measured
3.3V at C1187
[refer to check point
NG
Change
IC1003
IC1003
OK
Check Boost Regulator
IC (IC1112) Measured
32V after D1115
[refer to check point
NG
Change
IC1112
NOTICE:
PMX150/152 only
Press Power Button
of Unit or Remote Control
to Turn ON the Unit
Caution:
No Display on
1. AC Cord Plug-out
FL Panel
2. Check Fuse(F1) = 0 ohm
[ refer to check point
NG
Check Fuse (F1)
OK
OK
Check DCDC IC
(IC1115)
Measured 1.6V at Pin 1 of LB1105
[refer to check point
]
]
4
5
NG
Change
IC1115
IC1115
Check Regulator IC
(IC1106)
Measured 1.6V at Pin 3 to GND
[refer to check point
]
5a
NG
Change
IC1106
NOTICE:
IC1115 used in PMX150/152 only
IC1106 used in PMX80/82/84 only
OK
Check Connector (CN8001)
Measured
32V
at Pin 17
]
8
NG
Check Main PCB
& FFC
NOTICE:
32V in PMX150/152 only
12V used in PMX80/82/84 only
Note: Need to monitor Voltage Supply from Power on will reach expected
output (Recommend to use Digital Oscilloscope)
Check DCDC IC
FL Display
(IC1101)
Measured 5.2V at Pin 1 of LB1101
"F76"
[refer to check point
OK
Check DCDC IC
(IC1102)
Measured 5.6V at Pin 1 of LB1103
[refer to check point
OK
Check Regulator IC
(IC1104)
Measured 5V at Pin 1 of LB1108
[refer to check point
OK
Check Regulator IC
(IC1106)
Measured 1.6V at Pin1 of LB1112
[refer to check point
OK
Check DCDC IC
(IC1115)
Measured 1.6V at Pin 1 of LB1105
[refer to check point
[ f t
h k
i t
OK
Check DCDC IC
(IC1105)
Measured 3.3V at Pin 1 of LB1109
[refer to check point
NOTICE:
IC1115 and IC1105 used in PMX150/152 only
IC1106 used in PMX80/82/84 only
OK
Check Primary E-Cap (C5720)
Measured 300V or more
[refer to check point
-
]
1
NG
Check
SMPS Module
Check DCDC IC
OK
Check Connector (CN1100)
(IC2900)
Measured
14.5V
at C2905
[refer to check point
]
6
NG
Change
IC2900
IC2900
NOTICE:
14.5V in PMX150/152 only
12V used in PMX80/82/84 only
OK
Check Connector (CN8001)
Pin 2/3/4 if have any Signal CLK/Data by using
Oscilloscope
NG
Change Main PCB
NG
Change
IC1101
]
9
NG
Change
IC1102
]
10
NG
Change
IC1104
]
11
NG
Change
IC1106
]
5a
NG
Change
IC1115
]
]
5
NG
Change
IC1105
]
12
19
Check Secondary Cap. (C5811)
OK
Measured 8V or 13.5V
-
]
[refer to check point
-
2
3
NG
Check SMPS Module
OK
Check Regulator IC
(IC1111)
Measured
14.5V
Measured 12V at pin 1
at Pin 6
[refer to check point
NG
NG
Check wire
Change
connector
connector
IC1111
IC1111
OK
If No Display on
FL Panel
NG
Check Panel
PCB
]
]
7
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