Pioneer PDP-5010FD

PDP-5010FD
49
5678
56
7
8
C
D
F
A
B
E
No
Y DRIVE Assy
Is the waveform normal when the
voltage is applied to the panel?
(See the oscilloscope photos.)
Are all the connectors properly
connected?
Reconnect the connectors.
No
Set the VH voltage correctly.
X DRIVE Assy
Y DRIVE Assy / SCAN A, B, C, D
Assys
ADDRESS Assy
Abnormality across the whole
screen, such as luminescent spots
B
D
C
NG
Ye s
No
Set the VSNOFS voltage correctly.
NG
Is the VH set voltage (130 V)
correctly set?
Ye s
Is the VSNOFS set voltage correctly
set (set value: designated for each panel)?
No
No
Another Assy may be in failure.
Set the VKNOFS 4voltage correctly.
No
Replace the FFC cables.
Replace the DIGITAL Assy.
Replace the Y DRIVE Assy.
Replace the SCAN IC.
NG
NG
Ye s
Ye s
Ye s
Ye s
No
Set the VYRST voltage correctly.
Is the VYRST set voltage correctly
set (set value: designated for each panel)?
NG
Ye s
No
Set the VKNOFS1, 2 voltage correctly.
Is the VKNOFS1, 2 set voltage
correctly set?
NG
NG
Ye s
Ye s
No
Set the VKNOFS3 voltage correctly.
Is the VKNOFS3 set voltage correctly
set (set value: designated for each panel)?
NG
Ye s
Is the VKNOFS4 set voltage correctly
set (set value: designated for each panel)?
Is the input signal normal?
(See the oscilloscope photos.)
No
Is the waveform of the control
signal from the SCAN Assy normal?
(See the oscilloscope photos.)
Failure analysis for the
drive system => DR2
Because it is difficult to identify which drive is in failure, follow the flowchart below to check each Assy.