JVC UX-HB4 Service Manual page 16

3.1.9 Removing the heat sink/power board
(See Fig.20 ~ 27)
• Prior to performing the following procedure, remove the front
panel assembly.
(1) Remove the four screws U attaching the holder in the pow-
er unit section.
(2) Move the power unit section with the wire from the rear cov-
er temporarily. If necessary, release the band and unsolder
the wire on the power board.
(3) Remove the four screws Y and the screw A' attaching the
holder.
(4) Release the wire from the band e and move the holder in
the direction of the arrow to release from the joint f.
(5) Remove the four screws B' and two screws D' attaching
the heat sink.
(6) Remove the two screws E' attaching the power board.
3.1.10 Removing the power transformer assembly
(See Fig.27, 28)
• Prior to performing the following procedure, remove the front
panel assembly and the power unit section.
(1) Remove the four screws F' attaching the power transform-
er assembly. The bracket comes off at the bottom of the
rear cover.
(2) Remove the screw G' attaching the power cord folder.
(3) Remove the two screws H' attaching the AC connector
board.
3.1.11 Removing the FM antenna board
(See Fig.28)
• Prior to performing the following procedure, remove the front
panel assembly and the power unit section.
(1) From the rear cover assembly, remove the screw J' attach-
ing the FM antenna board.
(2) From the FM antenna board, unsolder the FM antenna
wire.
U
Power unit section
U
Rear cover
1-16 (No.MB330)
U
Power trnsfomer assembly
Fig.20
Rear cover
Heat sink
Y
U
Ppwer unit section
Fig.21
Holder
Power board
Fig.22
Y
Band