JVC SP-PWM508, Service Manual

Page: 11 / 89

(No.MB294)1-11
3.1.5 Removing the audio & digital input board
(See Figs.9 and 10)
• Prior to performing the following procedures, remove the metal
cover.
(1) From the top side of the main body, disconnect the card
wires from the connectors ( CN411 , CN412 ) on the main
board. (See Fig.9)
(2) Remove the screw J attaching the audio & digital input
board to the bracket(DSP). (See Fig.9)
(3) From the back side of the main body, remove the screw K
and three screws L attaching the audio & digital input board
to the rear panel. (See Fig.10)
(4) Take out the audio & digital input board from the main
body.
3.1.6 Removing the tuner
(See Figs.9 and 10)
• Prior to performing the following procedures, remove the metal
cover.
(1) From the top side of the main body, disconnect the card
wire from the connector CN1 on the tuner. (See Fig.9)
(2) From the back side of the main body, remove the two
screws M attaching the tuner to the rear panel. (See
Fig.10)
(3) Take out the tuner from the main body.
3.1.7 Removing the power supply board
(See Figs.9 and 10)
• Prior to performing the following procedures, remove the metal
cover.
(1) From the top side of the main body, disconnect the parallel
wires from the connectors ( CN404 to CN407 ) on the main
board. (See Fig.9)
(2) Remove the three screws N attaching the power supply
board. (See Fig.9)
(3) From the back side of the main body, remove the screw P
attaching the power supply board to the rear panel. (See
Fig.10)
(4) Take out the power supply board from the main body.
Reference:
Remove the rear panel as required. (See “3.1.4 Removing the
rear pane”)
Fig.9
Fig.10
Power supply board
N
Bracket
(DSP)
Parallel wires
CN404
N
CN405
Tuner
CN1
Card wire
Audio & digital input board
CN407
CN406
J
Card wires
Main board
CN411
CN412
K P
Rear panel
M L