Removing The Heatsink - JVC RX-E112RSL Service Manual

Removing the main board with speaker
board
Prior to performing the following procedure, remove
the top cover, rear panel, input board, DSP board
and relay board (DSP).
1. Disconnect the harness from the connector CN515,
CN516 and CN517 on the main board (see fig.7).
2. Remove the harness band[1] (see fig.7) and harness
band[2] fixing the harness.
3. Disconnect the harness from the connector CN707
on the power supply board .
4. Disconnect the harness from the connector CN202
and CN226/CN227 on the main board .
5. Remove the five screws J and two screws K
attaching the main board.
6. Remove the two screws L attaching the heat sink to
the main board.
7. Disconnect the connector of each amp. board.
Removing the each amp. board of Cch,
Lch, Rch, SLch and SRch
Prior to performing the following procedure, remove
the top cover and main board.
1. Remove the two screws M attaching the Cch amp.
board and remove the Cch amp. board.
2. Remove the two screws N attaching the Lch amp.
board and remove the Lch amp. board.
3. Remove the two screws O attaching the Rch amp.
board and remove the Rch amp. board.
4. Remove the two screws P attaching the SLch amp.
board and remove the SLch amp. board.
5. Remove the two screws Q attaching the SRch amp.
board and remove the SRch amp. board.
Removing the Heat sink
Prior to performing the following procedure, remove
the top cover, main board and each amp. board.
1. Remove the four screws R attaching the two
brackets to the heat sink and remove the two
brackets.
J
(See Fig.8 to 10)
K
Main
board
SLch amp. board
SRch amp. board
(See Fig.11)
Main board
(See Fig.11)
Bracket
J
Fig.8
Heat sink
Main board (reverse side)
Fig.9
Rch amp. board
CN704
CN703
CN702
Fig.10
Heat sink
R P
(SLch)
Q
(SRch)
Fig.11
RX-E112RSL/RX-E111RSL
power supply
board
CN707
CN226/CN227
CN202
Harness
band[2]
Speaker board
L
Lch amp. board
Cch amp. board
CN705
CN701
Speaker board
N R
(Lch)
O
M
(Rch)
(Cch)
Bracket
1-5