54
KRP-500P
1
2
3
4
A
B
C
D
E
F
1
2
3
4
[5] MAIN ASSY (PANEL INTERFACE)
Flowchart of Failure Analysis for The MAIN Assy
Failure in the RST IC (IC7002) output or its peripheral circuits.
N
o
Replace the MAI
N
Assy.
N
o
Turn the PO
W
ER switch on.
Does the PO
W
ER switch on?
N
o
Is the M11 connector securely
connected?
Securely connect the M11 connector.
Yes
Yes
Is the cable that is connected to
the M11 connector broken?
Replace the cable (J116).
N
o
N
G
The RELAY port does not work.
The power is not turned on.
Can the unit be turned on, using
the remote control unit?
Can the unit be turned on, using
RS-232C commands?
Yes
Yes
Is resetting of the Main micro-
computer (IC7001) canceled?
Failure in the line between the Main microcomputer and M11 connector.
Failure in the IC5001 or its peripheral circuits.
Failure in the IC4001-IC4004 or its peripheral circuits.
• Failure in C
N
4002 or its peripheral circuits.
N
o
Replace the MAI
N
Assy.
Yes
Is the voltage at Pin 3 of the M11
connector High?
It does not supply a power supply to the module microcomputer.
N
o
Replace the MAI
N
Assy.
Yes
Is the voltage at Pin 50 of the M8
connector 3.4
V
?
N
o
Replace the MAI
N
Assy.
Yes
Is the voltage (3.4
V
) supplied
to the main microcomputer?
N
o problem with the MAI
N
Assy.
Check the LED Assy.
N
o
Yes
Replace the cable (J117) that
connects between the IR and
MAI
N
Assys.
Replace the IR Assy.
N
G
Replace the MAI
N
Assy.
N
o
Replace the MAI
N
Assy.
Failure analysis for the
MAI
N
Assy => PM1
Failure analysis for the
MAI
N
Assy => PM2
V
ideo signal is not output to the
DIGITAL Assy. OSD is not displayed.
Replace the MAI
N
Assy.
N
o
Replace the MAI
N
Assy.
Yes
Check that the clock, H sync,
V
sync,
and DE signals are input to IC4004.
N
o
Replace the MAI
N
Assy.
Yes
Check that the clockis input to R4022, and H sync,
V
sync, and DE signals are input to R4021.
Failure analysis for the
MAI
N
Assy => PM3
Summary of Contents for KURO KRP-500P
Page 12: ...12 KRP 500P 1 2 3 4 A B C D E F 1 2 3 4 Remote Control Unit for WYSIXK5 and WYS5 types ...
Page 13: ...13 KRP 500P 5 6 7 8 5 6 7 8 A B C D E F Remote Control Unit for LFT type ...
Page 14: ...14 KRP 500P 1 2 3 4 A B C D E F 1 2 3 4 Remote Control Unit for WA5 type ...
Page 19: ...19 KRP 500P 5 6 7 8 5 6 7 8 A B C D E F ...
Page 20: ...20 KRP 500P 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 22: ...22 KRP 500P 1 2 3 4 A B C D E F 1 2 3 4 4 2 OVERALL WIRING DIAGRAM 2 2 ...
Page 23: ...23 KRP 500P 5 6 7 8 5 6 7 8 A B C D E F OVERALL DIAGRAM KRP 500P ...
Page 139: ...139 KRP 500P 5 6 7 8 5 6 7 8 A B C D E F ...
Page 156: ...156 KRP 500P 1 2 3 4 A B C D E F 1 2 3 4 9 9 PANEL CHASSIS SECTION ...