Technics SU-VX620 - Disassembly Procedures: Internal; Internal Component Removal; Main PCB and Power IC Removal

SU-VX620 SU-VX620 |
Ref. No. Ref. No.
10 11
Procedure Procedure o
1—9— 10 12-11 q
5 Se P.C.B. angle
Removal
of
the
power
transistor
Removal
of
the
remote
sensor
P.C.B.
Procedure
1—2-9-11—
12—14—16
Power
transistor
. x
- Solder point R te sensor P.C.B
Solder point emote s .C.B. CN702A/
CN702B
(7)
Main
PCB.
1. Unsolder the power transistor. 1. Remove the 1 screw (@).
2.
Remove
the
4
screws
(@~@).
2.
Remove
the
P.C.B.
angle.
;
:
Eva
ewhen
mounting
power
transistor,
apply
silicon
thermal
3.
Remove
the
remote
sensor
P.C.B.
in
the
direction
of
arrow.
1.
Remove
the
1
flat
cable
(CN702A/CN702B).
3.
Remove
the
main
P.C.B.
in
the
direction
of
arrow.
compound
(RFKX0002)
to
the
rear
of
the
power
transistor.
2.
Remove
the
8
screws
(Q~@).
Removal of the rear panel Removal of the AC INLET/VOLT ADJ.
P.C.B.
Procedure Procedure
1-12 1512-13
Rear panel
Check of the main P.C.B.
Procedure
1—-2—18
Procedure
1-29-11
1214-16-17
IC
Rear panel
ie
—
a
ee
C
Oe
‘
1.
Unsolder
the
power
IC.
:
=
r
4
GO”
Re
ee
AC
IN/VOLT
ADJ
2.
Remove
the
2
screws
(@,
@).
“9
“@
@
PCB.
eWhen
mounting
the
power
IC
and
heat
sink,
apply
silicon
thermal
compound
(RFKX0002
or
equivalent)
to
rear
of
the
power
IC.
1.
Remove
the
4
screws
(@~@Q).
1.
Remove
the
11
screws
(@~@).
1.
Remove
the
1
screw
(@).
2.
Remove
the
rear
panel
in
the
direction
of
arrow.
2.
Release
the
2
claws
of
AC
inlet
cover.
Ae
switch
f.
:
controller
Rene
Removal
of
the
phono
P.C.B.
Removal
of
the
power
transformer
14
Main
P.C.B.
e
Procedure Procedure
6 0
Main
P.C.B.
/
11214 115
P.C.B. angle
om
SS See ee
IN |
Bottom board ass’y <o
=
®
3)
—
transformer
fee)
_———— aes i}
wer
eo”
A
Front panel ass’y
Remote switch
controller
CN702A/CN702B
3.
Remove
the
bottom
board
ass’y.
. Remove the 1 screw (@).
. Remove the P.C.B. angle.
.
Remove
the
remote
switch
controller.
1.
Remove
the
1
flat
cable
(CN702A/CN702B).
.
Remove
the
phono
P.C.B.
in
the
direction
of
arrow.
2.
Remove
the
5
screws
(@~®@).
4. Reinstall the front panel ass’y to the main P.C.B. and place
the unit as shown right. 2. Remove the 9 screws (@~@®).
5. Reinstall the remote switch controller to the switch.
-~9- -10-