JVC GY-HM600U Service Manual page 11

(7) Pull out the wires from the connectors CN301,
CN302 on the AVR board.
(8) Remove the six screws S attaching the AVR board, and
then remove the AVR board.
S CN305
CN301
S
S
Fig.18
CN305 and
S CN302
S
S
AVR Board
(No.HC047<Rev.001>)1-11