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On-Screen Display
Figure 45
Signal for the OSD (On-Screen Display) comes from three different sources.
IC 7001 located on the SSB (Small Signal Board) generates all the customer menus except for
Convergence.
In the SAM (Service Alignment Mode), the menus are generated by 7001 except those in the GDE
SAM. The GDE SAM menus are generated by IC 7100 on the ACS module.
The Convergence Alignment menus are generated by IC 7100 while the Convergence Alignment grid
is generated by IC 7002.
The OSD signals from 7001 on the SSB are fed to the SSM (Small Signal Module) via connector 1002
and 1043. The OSD signals from the Convergence Processor, 7002, are buffered by 7014 through
7017 before being mixed with the signals from the ACS Microprocessor, 7100. They are fed to the
SSM via connector 1000. The signals from the ACS and SSB are mixed and fed to the HOP panel
and HOP IC, 7600, via connector 1610. The HOP IC, 7600, mixes the OSD signal with the video
signal before feeding it to the CRTs.
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