Pioneer PDP-5010FD

PDP-5010FD
47
5678
56
7
8
C
D
F
A
B
E
5.2.2 POWER SUPPLY UNIT
Flowchart of Failure Analysis for The POWER SUPPLY Unit
Is the cable connected firmly to
the P4 connector?
Is the cable to the P4 connector
broken?
Check the voltage at the DIGITAL Assy and
POWER SUPPLY Unit.
Check the resistance between C102 (lead
nearest LF101) and the D105 anode,
using a tester.
Properly connect the cable between
the P4 and D23 connectors.
No
Replace the defective cable (J104).
Ye s
Ye s
Ye s
Is the cable connected firmly to
the P9 connector?
Properly connect the cable between
the P9 and M2 connectors.
No
Ye s
Is the cable to the P9 connector
broken?
Replace the defective cable (J106).
Is the fuse (F101) blown?
Replace the POWER SUPPLY
Unit.
Replace the POWER SUPPLY
Unit.
Replace the POWER SUPPLY
Unit.
Replace the POWER SUPPLY
Unit.
Ye s
No
No
Is one of the limiting resistors
(R101/R102) blown?
Ye s
No
The POWER SUPPLY Unit is
normal.
The POWER SUPPLY Unit is
normal.
STB 3.3 V power is not output.
No
Is the VADR voltage within the
specified values?
Is the VSUS voltage within the
specified range?
Is there a fluctuation in the
VADR voltage?
Is there a fluctuation in the
VSUS voltage?
The ripple must be within 5 V.
The ripple must be within 10 V.
The specified voltage values are between
57 and 63 V.
The specified voltage values are between
200 and 210 V (VSU: 125/35°C).
No
Ye s
Ye s
No
No
Ye s
Ye s
The cells of the panel do not
light normally.
No
The POWER SUPPLY Unit is
normal.
The power is not on, even though
the RELAY port is active.
Is the relay (RY102) on?
• Check the relay operation at the terminal
(Pin 11 of P4). (Voltage: 3.3 V)
• Check the relay sound (click).
No
Ye s
Is the PFC voltage normal?
• Check the voltage between the JW135
(PFC OUT) and JW112 (GND of primary
side) terminal.
• The voltage must be around 390 V.
Caution: High voltage!
Replace the POWER SUPPLY
Unit.
Replace the POWER SUPPLY
Unit.
Replace the POWER SUPPLY
Unit.
Replace the POWER SUPPLY
Unit.
No
Ye s
Failure analysis for the
POWER SUPPLY Unit => PS1
Failure analysis for the
POWER SUPPLY Unit => PS2
Failure analysis for the
POWER SUPPLY Unit => PS3