JVC HX-Z30 Service Manual page 9

3.1.8 .Removing the bridge board / regulator board / heat sink
(See Fig.20~23)
• Prior to performing the following procedure, remove the metal
cover, the CD changer mechanism assembly, the rear panel
and main board.
(1) Disconnect the wire from connector CN212,
CN214 on the primary board respectively and remove the
band attaching the wires.
(2) Disconnect the wire from connector
board.
(3) Disconnect the ground wire extending from the bridge
board from bottom chassis.
(4) Remove the two screws I attaching the heat sink bracket
and move the heat sink in the direction of the arrow to
release from the base chassis. The bridge board and the
regulator board come off with the heat sink.
(5) Remove the two screws J attaching the heat sink bracket.
(6) Remove the two screws M, detach bridge board from
regulator board by disconnect connector CN205.
(7) Remove the two screws K and two screws L to detach
regulator board from heat sink.
CAUTION:
As assembly back the regulator board and bridge board to
heat sink.
Regulator board must be assembly to heat sink first and
screws K and L must be screwed before bridge board attach
to regulator board.
CN701
Bridge board
1-12 (No.MB043)
CN213
CN701 on the bridge
Band
Primary board
CN213
CN212
CN214
Fig.20
Bridge board
and
Ground wire
Regulator board
Bridge board
Regulator board
Heat sink
K
M
I
Heat sink bracket
Fig.21
Heat sink bracket
J
Fig.22
Heat sink bracket
Regulator board
CN205
L
Bridge board
Fig.23
Heat sink
I
Heat sink
CN215