Memorex MVT2139 A Series Service Manual page 34

2-20: COLOR LEVEL
1. Receive the color bar pattern. (RF Input)
2. Connect the oscilloscope to TP4201.
3. When setting to the Y-LEVEL 100%, check if the
MAGENTA is 45 ± 10%. (Refer to Fig. 2-6)
45%
ELECTRICAL ADJUSTMENTS
100%
Magenta
Fig. 2-6
D3-4