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Model
SS-NA8ES
Pages
14
Size
620.88 KB
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PDF
Document
Service Manual
Brand
Device
Audio
File
ss-na8es.pdf
Date

Sony SS-NA8ES Service Manual ▷ View online

SS-NA8ES
9
2-7.  LOUDSPEAKER (13 cm) (WOOFER: RIGHT SIDE) (SP2)
1
3
2
4
loudspeaker terminal 
position
Note 3: Check that the caulking portion of a terminal is outside suitable. 
‡:LUHVHWWLQJ
loudspeaker (13 cm) (woofer: right side)
(SP2) “–” terminal
loudspeaker (13 cm) (woofer: right side)
(SP2) “+” terminal
caulking portion
WO board
“W2–” wire (green/black)
WO board
“W2+” wire (green/)
–)URQWULJKWVLGHYLHZ–
–)URQWULJKWVLGHYLHZ–
tweeter part
3 terminal 
 (green/black)
3 terminal (green)
Note 4: When installing screws (4 × 25), 
 
follow the installing procedure in 
 
the numerical order given. 
 
tightening torque : 
 
. “ . 1‡m
Note 2: Do not touch the central part of the loudspeaker 
 
(13 cm) (woofer: right side) (SP2).
1 four screws
 (4 
u 25)
2 Pull out the loudspeaker (13 cm) (woofer: right side) (SP2).
4 packing (13 cm)
 Note 
5: When installing the packing (13 cm), a glossy 
 
 
surface is made into the speaker cabinet side, 
 
 
and a rough side is made into the loudspeaker 
 
 
side, and align the position of the tapped hole 
 
 
of packing (13 cm) and speaker cabinet. 
5 loudspeaker (13 cm) (woofer: right side) (SP2)
 Note 
8:  Be careful not to attach a crack to a speaker cabinet using 
 
 
the terminal of a wire.
 Note 
9:  Be careful not to put a wire.
 Note 
10:  Check that the connection mistake or insertion of a wire are 
  
not 
imperfect.
 Note 
11:  Insert the terminal straightly.
 Note 
12:  After terminal insertion, should check acting as lock of the 
  
terminal 
completely.
 Note 
13:  Be careful not to attach a crack to the edge of a speaker cabinet.
 Note 
14:  Check packing (13 cm) not being twisted or not having fallen 
 
 
into a speaker cabinet.
Note 6: When installing the loudspeaker (13 cm: right side) (woofer) 
 
(SP2), after each screw holes of the loudspeaker (13 cm) 
 
(woofer: right side) (SP2) and packing (13 cm) are aligned, 
 
attach it to the speaker cabinet.
Note 7: When installing the loudspeaker (13 cm) (woofer: right side) 
 
(SP2), install to a speaker cabinet after checking that a 
 
loudspeaker terminal is on the diagonal left.
Note 1: When exchanging the loudspeaker (13 cm) (woofer: right side) (SP2), 
refer to “NOTE THE SPEAKER UNITS REPLACING” on page 2.
SS-NA8ES
10
2-8.  WO BOARD  BLOCK
2 Remove four catchers from four shafts 
 
of speaker cabinet.
4 After rotating WO board 90° within a speaker 
 
cabinet, it pulls out from a speaker cabinet.
5 WO board block
MOUNT 
(WO) board
TW board
left side
right side
center
shaft
shaft
brown
brown
blue
blue
brown brown
blue
blue
shaft
shaft
1 tapping screw 
 (BV3.5)
 
tightening torque: 
“1‡P
3 four terminals
 Note 
1: :KHQLQVWDOOLQJWHUPLQDOVFKHFN
WKDWWKHFDXONLQJSRUWLRQRID
WHUPLQDOLVERWWRPVLGHVXLWDEOH
– Speaker cabinet left inner side sectional view –
speaker cabinet
Wire (red) from WO board (left side)
Push into a slit of acoustic absorbent.
Note 3:6HHIURPWKHIURQWDQGOHWZLUHUHGSDVVRQOHIWVLGH
Wire (black) from WO board (left side)
Push into a slit of acoustic 
absorbent.
Note 3:6HHIURPWKHIURQWDQGOHW
ZLUHUHGSDVVRQULJKWVLGH
Connect four terminals of wires from 
TW board (right side).
Note 2:FKHFNWKDWDZLUHZDUQVDJDLQVW
SXOOLQJWRRPXFKDQGLVJHQHURXV
From the left
“AT IN –” wire (brown)
“AT IN+” wire (blue)
“TW IN –” wire (brown)
“TW IN+” wire (blue)
Wire (black) and wire (red) 
are taken out to a center 
through a partition.
Two short wires
“W1 –” wire (green/black)
“W1 +” wire (green)
Takes out from a front hole.
Two long wires from WO board (left side)
“W2 –” wire (green/black)
“W2 +” wire (green)
After pushing in on a duct, it takes out to 
right side through a partition.
Note 2:FKHFNWKDWDZLUHZDUQVDJDLQVW
SXOOLQJWRRPXFKDQGLVJHQHURXV
Two long wires from WO board (left side)
“W2 –” wire (green/black)
“W2 +” wire (green)
After letting a partition pass, it takes out to 
right side through a central duct top.
Note 2:FKHFNWKDWDZLUHZDUQVDJDLQVW
SXOOLQJWRRPXFKDQGLVJHQHURXV
“AT IN –” wire (brown)
“AT IN+” wire (blue)
“TW IN –” wire (brown)
“TW IN+” wire (blue)
After letting a partition pass, 
it takes out to left side 
through a center.
“AT IN –” wire (brown)
“AT IN+” wire (blue)
“TW IN –” wire (brown)
“TW IN+” wire (blue)
Takes out to center 
through a partition.
Two long wires from WO board (left side)
“W2 –” wire (green/black)
“W2 +” wire (green)
Takes out from a front hole.
Note 2:FKHFNWKDWDZLUHZDUQVDJDLQVW
SXOOLQJWRRPXFKDQGLVJHQHURXV
‡ :ire settinJ
– Speaker cabinet inner side view –
SS-NA8ES
11
2-9.  TW BOARD  BLOCK
2-10.  RETORQUING  OF  SCREWS
Retorquing all the screws of loudspeaker (13 cm) (woofer) (SP1, SP2) part, tweeter assy part and terminal board assy (TB1) part.
Tightening torque 
• 
Loudspeaker (13 cm) (woofer) (SP1, SP2) part (8 places): 2.0 ± 0.1 N•m
• 
Tweeter assy part (6 places): 1.5 ± 0.1 N•m
• 
Terminal board assy (TB1) part (4 places): 1.5 ± 0.1 N•m
Note 1:
 The screw must not fl oat or the screw head must not be damaged. 
Note 2:
 If you will fl oat even retorque the screws, set up again not to exceed the numerical value of the following torque.
• 
Loudspeaker (13 cm) (woofer) (SP1, SP2) part (4 places): 3.5 ± 0.1 N•m
• 
Tweeter assy part (6 places): 2.0 ± 0.1 N•m
• 
Terminal board assy (TB1) part (4 places): 2.0 N•m
2 Remove four catchers from four shafts 
 
of speaker cabinet.
3 After rotating TW board 90° within a speaker 
 
cabinet, it pulls out from a speaker cabinet.
4 TW board block
shaft
shaft
shaft
shaft
1 tapping screw 
 (BV3.5)
 
WLJKWHQLQJWRUTXH“1‡P
– Speaker cabinet right inner side sectional view –
speaker cabinet
– Front side view –
– Rear side view –
tweeter assy part
six screws (3.5 
u 20)
terminal board assy part
four screws (3.5 
u 20)
loudspeaker (13 cm) 
(woofer: left side) (SP1) part
four screws (4 
u 25)
loudspeaker (13 cm) 
(woofer: right side) (SP2) part
four screws (4 
u 25)
12
SS-NA8ES
SECTION  3
EXPLODED  VIEW
 1 
X-2581-995-1 GRILLE 
FRAME 
ASSY
 2 
4-235-903-02 SCREW 
(3.5X20)
 4 
4-264-639-01 PACKING 
(C)
 5 
4-235-904-02 SCREW 
(4X25)
  6 
4-290-382-11  PACKING (13 cm)
  7 
4-874-614-82  +BV TAPPING SCREW TYPE-1 3.5
 8 
4-297-526-01 PACKING 
(A)
 9 
3-095-290-01 FOOT
 10 
4-272-161-01 PACKING, 
TERMINAL
 12 
4-912-253-01 CATCHER
  13 
4-286-322-01  SCREW, +BV B3.5X10 ROUNDED END
(for SERVICE)
  14 
4-449-207-01  BP CAP (BLACK)
  15 
4-449-207-11  BP CAP (RED)
  MBT1 
1-895-007-11  TW BOARD, COMPLETE
  MBW1 
1-895-008-11  WO BOARD, COMPLETE
  SP1 
1-858-654-11  LOUDSPEAKER (13 cm) (Woofer: left side)
  SP2 
1-858-654-11  LOUDSPEAKER (13 cm) (Woofer: right side)
  SP3 
1-858-571-12  LOUDSPEAKER (1.9 cm) 
(Assist tweeter: upper side)
  SP4 
1-858-571-12  LOUDSPEAKER (1.9 cm) 
(Assist tweeter: lower side)
  SP5 
A-1934-279-A  SPEAKER (2.5 cm) ASSY (for SERVICE)
 (Main tweeter) (Including FACE PLATE)
 TB1 
A-1800-115-A TERMINAL 
BOARD 
ASSY
  Ref. No. 
Part No. 
Description 
Remark
  Ref. No. 
Part No. 
Description 
Remark
Note:
•  -XX and -X mean standardized parts, so 
they may have some difference from the 
original one.
•  Items marked “*” are not stocked since 
they are seldom required for routine ser-
vice. Some delay should be anticipated 
when ordering these items.
•  The mechanical parts with no reference 
number in the exploded views are not sup-
plied.
•  Color Indication of Appearance Parts Ex-
ample:
  KNOB, BALANCE (WHITE) . . . (RED)
   
 
 
   
 
Parts Color  Cabinet’s Color
Note: When exchanging loudspeakers (SP1, 
SP2, SP3, SP4, SP5), refer to “NOTE 
THE SPEAKER UNITS REPLAC-
ING” on page 2.
ES
K
L
D
C
E F
F
E
C
D
B
B
A
H
G
I
I
J
J
A
H
G
K
L
2
not supplied
4
4
SP4
SP5
SP3
5
13
13
6
7
6
8 9
9
SP1
1
5
2
SP2
MBW1
MBT1
7
12
12
12
12
12
13
13
10
2
2
2
15
14
TB1
TERMINAL board
not supplied
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