CPD-G220R, CPD-G220S - Sony Monitor Service Manual (repair manual). Page 9

 

Allow a 30 minute warm-up period prior to making the following 
adjustments:

1.  Display the all white pattern.
2.  Adjust the contrast to maximum value.
3.  Display the plain green pattern.
4.  Slide the DY back and roughly adjust the plain green pattern  with 

the purity magnet so that it is centered on the screen.

5.  Moving the DY forward, adjust so that an entire screen be comes 

pure green.

6.  Adjust the tilt of DY and tighten lightly with a clamp.

1.  Place the monitor in the Helmholtz coil.
2.  Set TLH plate to zero position.
3.  Display plain green pattern.
4.  Degauss CRT face and iron parts with  degauss equipment or hand-

degausser. 

5.  Perform auto degauss. 
6.  Attach a wobbling coil to the specifi ed position of CRT neck.
7.  Put the sensor of landing checker to CRT face. 
8.   Adjust purity, DY position and DY tilt.
9. Tighten 

DY 

screw.

10.  Perform auto degauss.
11.  Adjust top and bottom pin by pitching DY up and down with two 

wedges so that [a] is equal to [b].

Connect the communication cable of the connector located on the D board on the monitor. Run the service software and then follow the instructions

12.  If the corner landing is out of specifi cation, use a disk magnet for 

the landing correction.

13.  If disk magnets were used, perform an auto degauss.
14.  Remove the wobbling coil and sensor.
15.  Fix the purity magnet on DY with white paint.

1.  Enter the white crosshatch signal.
2.  Roughly adjust the horizontal (H.STAT) and vertical (V.STAT) 

convergence at four-pole magnet.

3.  Roughly adjust HMC and VMC at six-pole magnet.

1.  Display crosshatch pattern with green lines and black fi eld.
2.  Adjust V. Key (=H. Trapezoid) with H-Trp VR so that [a] is equal 

to [b].