Pioneer PDP-5020FD Service Manual page 174

1
A
Recovery flowchart (2-3)...Changing the VOL YNOFSA D setting
[From the Main flowchart (2) / Recovery flowchart (2-2)]
RST MASK 23 (Blue 1023+)
Gradually increase the VOL YNOFSA D value until disappear the
discharge (dead cell).
The tentative setting value of VOL YNOFS3 D + current setting
value of VOL YNOFSA D must be 255 or less.
B
Tentative setting value of VOL YNOFS3 D
+ current setting value of VOL YNOFSA D
Display RST MASK 14 (Cyan 120). / [MKR S14]
Set VOL YNOFSA D to the current setting value plus 57. / [VYF ∗∗∗]
C
Is there erroneous discharge (abnormal lit cell)?
(Check on the PANEL 1-ADJ menu.)
Set VOL YNOFSA D to the current setting value minus 34. / [VYF ∗∗∗]
Determine the current VOL YNOFSA D setting value as the final value.
D [To the Main flowchart (2)]
E
F
174
1
2
> 254?
No
No
PDP-5020FD
2
3
Yes Replacement of abnormal circuits or
re-replacement of the panel required
Replacement of abnormal circuits or
Yes
re-replacement of the panel required
3
4
4