50
PRO-141FD
1
2
3
4
A
B
C
D
E
F
1
2
3
4
[2] POWER SUPPLY UNIT
Flowchart of Failure Analysis for The POWER SUPPLY Unit
Is the cable connected firmly to
the P7 connector?
Is the cable to the P7 connector
broken?
Check the voltage at the MAIN Assy and
POWER SUPPLY Unit.
Check the resistance between L102
(R105 side) and the D131 anode,
using a tester.
Properly connect the cable between
the P7 and M1 connectors.
No
Replace the defective cable (J109).
Yes
Yes
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.
Yes
No
Is one of the limiting resistors
(R105/R106/R107/R108) blown?
Yes
No
The POWER SUPPLY Unit is
normal.
The POWER SUPPLY Unit is
normal.
STB 3.4 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
72 and 78 V.
The specified voltage values are between
205 and 215 V (VSU: 125/35
°
C).
No
Yes
Yes
No
No
Yes
Yes
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 (RL102) on?
• Check the relay operation at the terminal
(Pin 4 of P4). (Voltage: 3.4 V)
• Check the relay sound (click).
No
Yes
Is the PFC voltage normal?
• Check the voltage between the D205 cathode
and RC101 (-) terminal.
• The voltage must be around 390 V.
(340V or less are defective.)
Caution:
High voltage!
Replace the POWER SUPPLY
Unit.
Replace the POWER SUPPLY
Unit.
Replace the POWER SUPPLY
Unit.
Replace the POWER SUPPLY
Unit.
No
Yes
Failure analysis for the
POWER SUPPLY Unit => PS1
Failure analysis for the
POWER SUPPLY Unit => PS2
Failure analysis for the
POWER SUPPLY Unit => PS3
Summary of Contents for Kuro Elite PRO-141FD
Page 10: ...10 PRO 141FD 1 2 3 4 A B C D E F 1 2 3 4 2 2 SPECIFICATIONS PRO 141FD KU CBXC ...
Page 11: ...11 PRO 141FD 5 6 7 8 5 6 7 8 A B C D E F KRP 600M KUCXC ...
Page 12: ...12 PRO 141FD 1 2 3 4 A B C D E F 1 2 3 4 KRP 600M YVPSLFTD TYVXK5 ...
Page 13: ...13 PRO 141FD 5 6 7 8 5 6 7 8 A B C D E F 2 3 PANEL FACILITIES For PRO 141FD ...
Page 14: ...14 PRO 141FD 1 2 3 4 A B C D E F 1 2 3 4 Front Section for KRP 600M ...
Page 15: ...15 PRO 141FD 5 6 7 8 5 6 7 8 A B C D E F Rear Section for KRP 600M ...
Page 16: ...16 PRO 141FD 1 2 3 4 A B C D E F 1 2 3 4 Remote Control Unit ...
Page 17: ...17 PRO 141FD 5 6 7 8 5 6 7 8 A B C D E F ...
Page 22: ...22 PRO 141FD 1 2 3 4 A B C D E F 1 2 3 4 4 BLOCK DIAGRAM 4 1 OVERALL WIRING DIAGRAM 1 2 ...
Page 24: ...24 PRO 141FD 1 2 3 4 A B C D E F 1 2 3 4 4 2 OVERALL WIRING DIAGRAM 2 2 ...
Page 25: ...25 PRO 141FD 5 6 7 8 5 6 7 8 A B C D E F OVERALL DIAGRAM PRO 141FD KRP 600M ...
Page 37: ...37 PRO 141FD 5 6 7 8 5 6 7 8 A B C D E F ...
Page 43: ...43 PRO 141FD 5 6 7 8 5 6 7 8 A B C D E F ...
Page 73: ...73 PRO 141FD 5 6 7 8 5 6 7 8 A B C D E F ...
Page 209: ...209 PRO 141FD 5 6 7 8 5 6 7 8 A B C D E F ...
Page 212: ...212 PRO 141FD 1 2 3 4 A B C D E F 1 2 3 4 9 2 PACKING SECTION KRP 600M KUCXC 4 Cable clamps ...
Page 226: ...226 PRO 141FD 1 2 3 4 A B C D E F 1 2 3 4 9 9 PANEL CHASSIS SECTION ...