Pioneer CDXP23S is an old model and has been top useful for me to find this Manual. CD Player is still repaired.
Text excerpt from page 40 (click to view)
2-19 Rod Adjustment
1. Environment adjustment - The distance between the engine and the screen is 2.25 M - This process should be done at a dark environment. (under 5 Lux) 2. Procedure adjustment - Change the screen to �white screen.� - Adjust the screws by using the rod on the engine module to readjust the image. (adjust until the yellowish or bluish parts disappeared.) 3. Abnormal image inspection - It should not have any abnormal color at the rim of the image by estimating through the eyes.
Note: - To avoid over adjust the rod. - �Screw 1� should be adjusted first, and then adjust the �Screw2�.After the adjustment, use the glue to fix the screws.
2 1