Yamaha DVD-C996 Service Manual page 17

Service Position
Checked by connecting the Module P.C.B. and the Main P.C.B. with the extension cables.
Extension cable (14 pin): AAX16590 (VUC8026)
Extension cable (22 pin): AAX16610 (JGS0116)
CAUTION
a. As the grounding becomes loose when the Main P.C.B is
removed from the chassis, ground the board to the chassis.
b. Do not allow anything like cloth (insulating material) to enter
and contact between the Module P.C.B. and the Main
P.C.B.
Extension cable (22 pin): AAX16610 (JGS0116)
Module P.C.B.
Extension cable (14 pin): AAX16590 (VUC8026)
Main (1) P.C.B.
DVD-C996/DV-C6280
CM-220 Unit
16