that the level A is 3.0 V[p-p]±0.1 V[p-p].
5. Select SUB BRIGHT in EVR adjustment mode and reset to the 
original value.
Fig. E7
7.3.10. FOCUS, SCREEN, CUT OFF, DRIVE ADJUSTMENT
Purpose:
To set the optimum Focus and Screen.
Symptom of Misadjustment:
The picture is out of Focus and there will be an improper screen 
color mix.
 Test Point:
 TP50 (CRT C.B.A.)
 Adjustment:
 FOCUS CONTROL (Flyback Transformer),
 SCREEN CONTROL (Flyback Transformer),
 SUB BRIGHT (EVR),
 B DRIVE (EVR),
 R DRIVE (EVR),
 B CUT -OFF (EVR),
 G CUT -OFF (EVR),
 R CUT -OFF (EVR)
 Specification:
 Refer to descriptions below.
Input:
Video Input Jack
Monoscope Pattern Signal
67