JVC 250 Service Manual page 128

Chapter 5---Electronics
installed in the #2 or 3 VIC slot (it will not fit into the #1 slot), a blank face plate
must be installed above it. The blank faceplate is not included with the Quad
Standard Decoder/Line Doubler VIC unless it is installed at the factory. The part
number for the blank faceplate is p/n 102667.
Figure 5-41 Quad Standard Decoder/Line Doubler VIC faceplate with blank
faceplate above it.
Model 250 Service Manual 5-73