Operating instructions

3-18 (E)
DFP-R3000
3. Shading Compensation (S and P sides)
Procedure
(1) Input the command a from PC and then press the Enter key.
(2) Check that the following message (error message in the following table is not displayed) will be
displayed on the screen of PC.
. Examples of messages
n
1. The following are examples of messages displayed when there is no error in the shading
compensation. The values of each item differs according to the LED assembly (value after “=”,
etc.).
2. Replace the LED assembly when the value of the “AD GAIN Setting” is above “00B0”.
The following will be displayed when errors occur in shading compensation.
Display Description Remedy
1. S (P) LED Current limit over The light amount of the LED does Replace the S (or P) side LED.
2. S (P) LED dark error
not meet the specification.
3. S (P) LED shading The difference between the maximum Re-adjust the LED assembly.
limit over error and minimum light amounts of the
LED does not meet the specification.
4. Sampling time out Fault of RD-35 board. Check the RD-35 board.
5. Dark level too high
Example error display
. S side LED dark error
. S side LED shading limit over error
3-2. Optical Source Adjustment
S side information
P side information
(^0^)/a
Adjust AD gain S side
AD GAIN Setting = 0076
Finish adjust max = 03FF min = 032F
clamp out max = 03F8 min = 0324
Adjust shading S side
Adjust AD gain P side
AD GAIN Setting = 007B
Finish adjust max = 03F4 min = 033A
clamp out max = 03F5 min = 0339
Adjust shading P side
AF BC DE HL SP
0044 FF81 FFF9 FFFF 1084
(^0^)/
(^0^)/a
Adjust AD gain S side
AD GAIN Setting = 0100
Finish adjust max = 0190 min = 013B
S LED dark error

AF BC DE HL SP
0044 FE81 FFF1 FFFF 1084
(^0^)/

(^0^)/a
Adjust AD gain S side
AD GAIN Setting = 0074
Finish adjust max = 03F2 min = 004B
S LED shading limit over error

AF BC DE HL SP
0044 FE81 FFF1 FFFF 1084
(^0^)/