JVC SR-VS30U Service Manual page 8

3.1.6 Removing the switch & volume board
(Fig.9)
(1) After removing the mechanism holder, proceed to the fol-
lowing steps.
(2) Pull out the INPUT volume knob.
(3) Remove four screws J, one screw N and cap retaining the
switch/volume board.
(4) Lift the board right upwards to remove it since it is connect-
ed to the key switch board with connector pins (CN603/
CN604).
(5) Disconnect CN602 coming from Mechanism control board
(CN702).
3.1.7 Removing the headphone jack board
(Fig.9)
(1) After removing the switch/volume board, pull the head-
phone jack board outwards while pushing it down toward
the bottom side to remove it.
3.1.8 Removing the key switch board
(Fig.9)
(1) Remove one screw K (Deck A or B) retaining the board.
(2) Do the same for the other side.
3.1.9 Removing the main board
(see Fig.4 and 1)
(1) Remove three screws L retaining the board.
(2) Remove four screws M retaining the board to the rear pan-
el.
3.1.10 Reassembling procedure of the front panel assembly
(1) Attach the key switch board to the panel with two screws.
(2) Attach the mechanism holder to the front panel assembly
with four screws.
(3) Put the door assembly on the front panel.
(4) Engage the door spring properly.
(5) Install the damper. (Push the pawl side last to engage it.)
(6) Install the mechanism assembly.
(7) Attach the mechanism control board to the panel with two
screws.
(8) Install the eject arm assembly.
(9) Attach the switch/volume board to the panel with five
screws.
(10) Hook the eject spring between lock lever and mechanism
assembly.
1-8 (No.MB061)
Mechanism control board
CN702
CN602
CN604
H K H J
Key switch board
Switch/Volume board
Key switch board
Fig.9
N
Cap
CN603
J J H K H
Key witch board
Headphone jack board