Sony SA-WRT5 Service Manual ▷ View online
SA-WRT5
9
2-5. FRONT PANEL BLOCK
1
Insert a flat-head screwdriver in two notches at bottom
of the unit, and lift the front panel block a little.
cabinet
3
All bosses are removed while moving
jig in the direction of the arrow, and
front panel block is removed.
front panel block is removed.
3
All bosses are removed while moving
jig in the direction of the arrow, and
front panel block is removed.
front panel block is removed.
5
front panel block
Note
3: When installing the front panel block,
remove the used glue and use a new
glue to fix the front panel block.
4
SUB LED board
connector
(CN7000)
(CN7000)
– Bottom view –
total eight bosses
2
Insert the jig into a space and
raise front panel block.
Note
2: When using a jig, please work
so as not to injure front panel
block and cabinet.
2
Insert the jig into a space and
raise front panel block.
Note
2: When using a jig, please work
so as not to injure front panel
block and cabinet.
front panel block
Note 1: Please spread a sheet under a
unit not to injure cabinet.
Insert only part way.
Insert straight into
the interior.
the interior.
connector
Insert at a slant.
connector
connector
connector
connector
connector
OK
NG
NG
How to install the connector
Insert the connector straight into the interior.
There is a possibility that using this unit without
the connector correctly installed will damage it.
Insert the connector straight into the interior.
There is a possibility that using this unit without
the connector correctly installed will damage it.
SA-WRT5
10
2-6. SUB LED BOARD, GRILLE FRAME ASSY, FRONT PANEL
5
ten screws
(BVTP3
u 8)
1
two screws
(BVTP3
u 8)
4
SUB LED board
3
seal cushion
7
grille frame assy
6
front panel
– Front panel block rear view –
2
hemilon
guideline
hemilon
Installation position of the hemilon and seal cushion
seal cushion
SUB LED board
– Rear view –
SA-WRT5
11
2-7. LOUDSPEAKER (160 mm)-130-11 (SP1)
2
Remove the loudspeaker
(160 mm)-130-11 (SP1) in
the direction of the arrow.
1
six tapping screws
(BV 4 x 20)
3
terminal (black)
(narrow
side)
3
terminal (red)
(wide
side)
4
loudspeaker (160 mm)-130-11 (SP1)
top side
– Front view –
terminals position
,QVWDOODWLRQGLUHFWLRQIRUWKHORXGVSHDNHU(160 mm)-130-11 (SP1)
OK
NG
Caulking is outside.
Caulking is inside.
,QVWDOODWLRQGLUHFWLRQIRUWKHVSHDNHUZLUH
top side
:LUHVHWWLQJ
loudspeaker (160 mm)-130-11 (SP1)
red
(wide side)
(wide side)
black
(narrow side)
(narrow side)
Note 1: When installing the loudspeaker (160 mm)-130-11 (SP1),
make sure that there is a position of the speaker terminal to
the position shown in the figure below.
Note 2: When installing the speaker wire, make the
position of caulking of terminals is outside.
SA-WRT5
12
SECTION 3
TROUBLESHOOTING
1. ON/STANDBY
indicator
fl ashes in red (PROTECT)
Note: When the volume level is “0”, power of amplifi er block is turned off, and amplifi er protect diagnosis is not performed.
Set the volume level than “1”.
ON/STANDBY indicator flashes in
red.
(PROTECT)
red.
(PROTECT)
ON/STANDBY indicator does not
flash in red, when the removing the
speaker connection connector
(CN7202) and turning the power on.
flash in red, when the removing the
speaker connection connector
(CN7202) and turning the power on.
Yes
Replace the complete SUB MAIN
board.
board.
Check and replace the speaker
(SP1).
(SP1).
Yes
Pin 35, 39 and 40 of IC7203 on the
SUB MAIN board are short-circuit
to GND.
SUB MAIN board are short-circuit
to GND.
No
No
Replace the IC7203 on the SUB
MAIN board.
MAIN board.
Yes
2. ON/STANDBY indicator does not light up (Power is not turned on)
ON/STANDBY indicator does not
light up.
(Power is not turned on)
light up.
(Power is not turned on)
The voltage of the following is 3.3 V.
SUB MAIN board: IC7400 pin 1
SUB MAIN board: IC7400 pin 1
Yes
Yes
Vibrator (X7400) on the SUB MAIN
board is oscillated after AC input.
board is oscillated after AC input.
Yes
Replace the switching regulator
(3L405W) (SWR1).
(3L405W) (SWR1).
No
No
Replace the IC7100 on the SUB
MAIN board, the voltage of the
following is 3.3 V.
SUB MAIN board: IC7400 pin 1
MAIN board, the voltage of the
following is 3.3 V.
SUB MAIN board: IC7400 pin 1
Yes
Replace the complete SUB MAIN
board.
board.
The voltage of the following is 20 V
(standby status) or 32 V (power on
status).
switching regulator
(3L405W) (SWR1): CN101 pin 8
(standby status) or 32 V (power on
status).
switching regulator
(3L405W) (SWR1): CN101 pin 8
Replace the complete SUB MAIN
board.
board.
No
No
Replace the vibrator (X7400) on the
SUB MAIN board, it is oscillated
after AC input.
SUB MAIN board, it is oscillated
after AC input.
Replace the complete SUB MAIN
board.
board.
No
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