KP-51WS500, KP-57WS500, KP-65WS500 - Sony TV Service Manual (repair manual). Page 14

1. Receive the Monoscope signal..
2. Set BRIGHTNESS to 50% and PICTURE to minimum.
3. Turn the red VR on the focus block all the way to the left and then 

gradually turn it to the right until the retrace line is barely visible.

4. Gradually turn the control to the left until the retrace line disappears.

R

G

B

SCREEN

R

G

B

FOCUS

FOCUS Block

If the jig described below is available, it is recommended that the G2 
Fine Mode Adjustment be performed to set the screen controls to their 
optimal condition.   If desired, you can build the jig illustrated below, 
using 3-watt resistors.  Please note that if the proper voltage is not 
obtained with the listed resistor’s values, then increase or decrease one 
of the values in the resistor network to obtain the correct voltage.

1. Select VIDEO-1 mode no signal applied (the screen must be black).
2. Connect the G2 JIG.
3. SW on JIG.
4. Connect an oscilloscope to the TP7101(KR), TP7202(KG) and 

TP7301(KB) of CR board, CG board, and CB board.

5. Adjust red, green, and blue screen voltage to 177.5+/-0.5V with screen 

VR on the focus block.

177.5V +/- 0.5V

G2 JIG

TP7202

(210V)

TO CG BOARD

GND

3.3k

3.9k

5.6k

6.8k

SW

K

GND

pedestal level

All resistors are 3W type

 
1.  Connect the color bar generator monoscope pattern to Video 1 input.
2.  Cover the red and blue CRT lenses with lens caps to allow only green 

to show (or use the method shown in the note below for turning off the 
CRTs individually without using lens caps).

3.  Loosen the CRT’s deß ection yoke set screw and align the tilt of 

the deß ection yoke so that the horizontal bars at the center of the 
monoscope pattern are horizontal.

4.  After aligning the deß ection yoke fasten it securely to the 

funnel-shaped portion (neck) of the CRT.

  The tilt of the deß ection yoke is aligned in the mode.
5.  Cover the green and blue CRT lenses with lens caps to allow only 

green to show (or use the method shown in the note below for turning 
off the CRTs individually without using lens caps), then repeat steps 
3 and 4 for the red CRT.  

  Cover the green and red CRT lenses with lens caps to allow only 

green to show (or use the method shown in the note below for turning 
off the CRTs individually without using lens caps), then repeat steps 
3 and 4 for the blue CRT.  

Note: If lens caps are unavailable, you can cut off the unnecessary color 
beams by controlling the service mode 2150P-2 1 RGBS.

2-pole magnet

4-pole magnet

Deflection yoke

Anode cap

Centering magnet