Samsung HDC9B90TX/EUR manual = C Z+A+650+B

H
				Fig.13
					P
				F
Fig.12				Fig.14
X				X
	157	Z	Y	A	Z
A
				C
					650
	Z = Y - 157
				B
				X = C - (Z+A+650+B)

Fig.15 - 6 -