See Fig - JVC MX-J150R Service Manual

Removing the heat sink
1.
cover plate.
2. Remove the two screws N attaching the power IC to
the heat sink and the three screws O attaching the
heat sink to the main board.
Removing the tuner board
The tuner board can be removed even if the main
board is attached.
1. Release the joint tab f of the tuner board holder and
the main board, and disconnect connector FW1
connected to the main board. Remove the tuner
board assembly (Refer to Fig.18).
2. Remove the screw P attaching the tuner board
holder. Release the two tabs g outward and remove
the tuner board from the holder.
Removing the power transformer
Prior to performing the following procedure, remove
the top cover and the side covers.
1. Disconnect the power cord from connector RCW2 of
the power transformer.
2. Disconnect the harness from connector RCW1 of the
power transformer.
3. Remove the four screws Q attaching the power
transformer and the screw R attaching the earth
terminal.
ATTENTION: Prior to disconnecting the power cord
from the body, remove the rear panel.
RCW1
Power transformer
(See Fig.17 and 18)
M attaching the heat sink
(See Fig.18 to 20)

(See Fig .21)

R
RCW2
Q
Power cord
Q
Fig.21
Heat sink cover plate
Tuner board
Heat sink cover plate
Heat sink
Tuner board
P
Tuner board holder
N
Fig.17
Joint tab f
FW1
Main board
O
Fig.18
Main board
FW1
Fig.19
Tab g
Tuner board
Tab g
Fig.20
M