Excelent scan job. It's a fully detailed service manual of this model.
Text excerpt from page 52 (click to view)
PDU-50WX2
Sustain Pulse Waveform Adjustment
Input Signal White 100%
Adjusting Point
Adjusting Method
X-SUS-B, Y-SUS-B Adjustment Set to the specified value with XSB and YSB of RS-232C command. (Refer to "Timing adjustment of control signal of X and Y Drive Assys".)
VRN Voltage Adjustment
Input Signal
Adjusting Point
Adjusting Method
White 100% VR3701 (VRN) (X DRIVE Assy)
VRN (minus reset voltage adjustment) Adjust so that the voltage between K3707 (VRN) and K3702 (SUS-GND) becomes -300V ± 1.0V.
Panel White Balance Adjustment
Input Signal
Adjusting Point
Adjusting Method
1.Transmit RS-232C command "M 04", and display mask pattern 4. 2.Read adjusted value with "GPW", and adjust it with "PR H" ... "PBL". 3.Transmit "M 00", and mask off.
Reference : Adjustment values using the Media color-difference meter (A-100) MASK Left Side x y 295 306 MASK Right Side 291 300
