Symptom: Spot killer triggered easily
Fix: To modify the spot killer circuit of the W-G monitor, you will
need two 2.2 uF, 50V electrolytic capacitors. Remove the deflection board
and solder these capacitors to the underside of the board in parallel with
C802 and C803. Be sure to install the new capacitors with the correct
polarity.
Some manuals do not specify the information for D901 in the HV unit section. The part crosses to NTE558.