Pioneer PDP-5000EX Service Manual page 107

5
2 Actual Vofs adjustment (1)
(From 1 )
(Check VOL OFFSET_min1.)
Perform aging for 3 seconds with
RST MASK 01 (white) displayed.
Set to RST MASK 09 (light purple).
Set VOL OFFSET to 021 (15 V).
Any abnormal bright cells?
Increase Vofs data one volt by one volt
until abnormal lit cells disappears.
(VOL OFFSET must be 181 [46 V] or less.)
VOL OFFSET_min2
Return the Vofs value to the tentative
voltage setting.
(Check VOL OFFSET_min2.)
Perform aging for 3 seconds with
RST MASK 01 (white) displayed.
Set to RST MASK 12 (light blue).
Set VOL OFFSET to 021 (15 V).
Any abnormal bright cells?
Increase Vofs data one volt by one volt
until abnormal lit cells disappears.
(VOL OFFSET must be 181 [46 V] or less.)
VOL OFFSET_min2
Return the Vofs value to the tentative
voltage setting.
(To 3 )
5
6
MKS S51
MKS S59
VOF 021
No
Note:
Yes
This setting value becomes the value
VOF ∗∗∗
for VOL OFFSET_min1.
No
136(37[V]) ?
Yes
Note:
VOF ∗∗∗
To correctly check the lower limit of Vofs, the tentative Vofs
voltage must be set to the set voltage as shown on the panel label.
MKS S51
MKS S62
VOF 021
No
Note:
Yes
This setting value becomes the value
VOF ∗∗∗
for VOL OFFSET_min2.
No
136(37[V]) ?
Yes
Note:
VOF ∗∗∗
To correctly check the lower limit of Vofs, the tentative Vofs
voltage must be set to the set voltage as shown on the panel label.
PDP-5000EX
6
7
Set VOL OFFSET_min2 to 021 (15 V).
Re-replacement
of the panel required
or abnormality in
circuits
Set VOL OFFSET_min2 to 021 (15 V).
Re-replacement
of the panel required
or abnormality in
circuits
7
8
A
VOF 021
VOL OFFSET_min1
C
D
VOF 021
VOL OFFSET_min2
E
107
8
B
F