SS-NA5ES - Sony Audio Service Manual (repair manual). Page 9

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SS-NA5ES
9
2-7.  TW BOARD BLOCK, WO BOARD BLOCK
1 Remove two acoustic absorbents from speaker cabinet.
3 Remove four catchers from four shafts 
 
of speaker cabinet.
3 Remove four catchers from four shafts 
 
of speaker cabinet.
TW board
WO board
shaft
shaft
shaft
shaft
shaft
shaft
shaft
shaft
capacitor
2 tapping screw (BV3.5)
 Note 
1: When tightening screws, be 
 
 
careful not to put the wire.
 Note 
2: Check that the screw has not 
 
 
floated or it is not slanting.
 Note 
3: tightening torTue . “ . 1‡P
2 tapping screw (BV3.5)
 Note 
1: When tightening screws, be 
 
 
careful not to put the wire.
 Note 
2: Check that the screw has not 
 
 
floated or it is not slanting.
 Note 
3: tightening torTue . “ . 1‡P
 Note 
4: When tightening screws, be careful 
 
 
so that neither a driver nor a screw 
 
 
can touch a capacitor.
– Speaker cabinet left inner side sectional view – – Speaker cabinet right inner side sectional view –
4 Pull out the TW board and 
 
WO board from speaker cabinet.
6 TW board block
TW board
Stuff the wire (red) into the slit of 
acoustic absorbent.
Note 9: Left side is red when it sees 
 froP the front.
Stuff the wire (black) into the 
slit of acoustic absorbent.
Note 9: Right side is black when 
 
it sees froP the front.
7 WO board block
WO board
5 four terminals
‡ :ire setting
– Speaker cabinet inner side view –
TW board 
“TW IN –” wire 
(brown)
TW board 
“AT IN –” wire (brown)
coil
TW board 
“TW IN +” wire 
(blue)
TW board 
“AT IN +” wire (blue)
Note 5: 7urn the caulking part of a terPinal to the coil side, and connect.
Note 6: Check that the connection Pistake or insertion of a wire are not iPperfect.
Note 7: ,nsert the terPinal straightl\.
Note 8: $fter terPinal insertion, should check acting as lock of the terPinal coPpletel\. 
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