Mitsubishi Electric VS-45605 Technical Training Manual page 67

On-Screen-Display Signal Path
On-Screen Displays inserted into the main picture
by the VCJ, IC2V00, can be sourced from two dif-
ferent circuits as shown in Figure 7-10.
• IC800, Convergence Generator--Generates
the Convergence Crosshatch used in the
Customer's Advanced Convergence Adjust-
ment and the servicer accessed Convergence
Adjustment Mode.
• IC700, Control Microprocessor--Generates
all other OSD graphics including all Menus,
Closed Captioning and other informational
displays.
The Red, Green and Blue signals output from the
two sources are combined within the OR gates in-
ternal to IC703 to form the RGB signals applied to
the VCJ.
Blanking signals, used to time OSD insertion, are
combined separately before being sent to the VCJ.
The Half Tone signal, discussed earlier in this sec-
tion, is generated by the Control uPC, IC700.
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