TH-A5R
1-8
Prior to performing the following procedure, remove
the top cover, front panel assembly, DVD
mechanism assembly, jack board and DSP board.
Disconnect the card wire from the connector CW4
and CW8 on the main board.
Disconnect the harness from the connector CW3 on
the main board.
Remove the five screws
I
attaching the speaker
terminals and jack to the rear panel (see fig.7).
Remove the six screws
K1
(short) and one screw
K2
(long)
attaching the main board.
When the rear panel is not removed, pull up the
main board from front side.
1.
2.
3.
4.
5.
Prior to performing the following procedure, remove
the top cover, front panel assembly, DVD
mechanism assembly, jack board, DSP board and
main board.
After removing the solder part soldered to the main
board, remove each screw and remove the heat sink
from Power transistor.
After removing the solder part soldered to the main
board, remove each screw and remove the heat sink
from Power IC.
1.
2.
Removing the main board (See Fig.10)
Prior to performing the following procedure, remove
the top cover, front panel assembly and jack board.
Untied the harness band and disconnect the harness
from the connector CW2 on the main board.
Disconnect the harness from the connector NW11 on
the DSP board.
Disconnect the card wire from the connector VW12
on the DSP board.
Pull up the DSP board from the front side upwards
disconnecting the connector DW10, DW13, DW14
and DW15.
1.
2.
3.
4.
Removing the DSP board (See Fig.9)
Removing the power transistor & power IC
(See Fig.10 and 11)
Fig.9
Fig.10
Fig.11
K2
K1
K1
Harness band
CW2
NW11
DW10
DW13
CW3 Power ICs
Solder part
Solder part
(Power IC is fixed)
Solder part Solder part
Heart sink
(to which power IC is attached)
Heart sink
(to which
power
transistor
is attached)
CW4
CW8
DW14
DW15
VW12
DSP board
Main board
(Rear panel side)
(Front panel side)
Main board
Main board
(Reverse side )
(Each power transistor is fixed)
Содержание TH-A5R
Страница 35: ...TH A5R 1 35 M E M O ...
Страница 45: ...A B C D E F G 1 2 3 4 5 2 9 TH A5R Front board Switch board Display board Printed circuit boards ...
Страница 46: ...H A B C D E F G 1 2 3 4 5 2 10 TH A5R TH A5R Main board Forward side ...
Страница 47: ...A B C D E F G 1 2 3 4 5 2 11 TH A5R Main board Reverse side ...
Страница 51: ...TH A5R 2 15 1 2 3 4 5 A B C D Jack board ...
Страница 53: ...TH A5R 3 2 M E M O ...
Страница 77: ...TH A5R 3 26 M E M O ...