Sony BKM-21D Maintenance Manual page 18

. . . . . Analog component mode
Component signal generator
Y/R-Y/B-Y 100% color bar
or
RGB 100% color bar
BKM-10R
. . . . . Digital mode
Digital signal generator
(100% color bar signal)
BKM-10R
3-4 (E)
YUV SMPTE/EBU-N10 signal
or
RGB signal
Extension board
(Z board)
BVM-20F1U
D1 525/60 signal or
D1 625/50 signal,
D2 NTSC signal,
D2 PAL signal
BVM-20F1U
BKM-21D
75 Z terminator x 3
Oscilloscope
Extension board
(Z board)
Y/G terminal
B-Y/ B terminal
R-Y/R terminal
BKM-21D
Oscilloscope
BKM-21D