DAV-DZ555K, DAV-DZ556KB, DAV-DZ750K, HCD-DZ555K, HCD-DZ556KB, HCD-DZ750K - Sony Audio Service Manual (repair manual). Page 18

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18
HCD-DZ555K/DZ556KB/DZ750K
3-11. POWER BOARD
3-10. IO-S-OUT BOARD
7
three screws
(+BVTP 
×
 8)
8
screw
(+BV 
×
 6)
9
IO-S-OUT board
4
wire (flat type) 21core (CN605) (EXCEPT MX, E32)
     wire (flat type) 17core (CN607) (MX, E32)
5
wire (flat type)
5core (CN307)
6
connector
5p (CN302)
3
wire (flat type)
11core (CN304)
1
two screws
(+BV 
×
 6)
2
bracket
(DIAT DS)
1
connector
4p (CN3002)
3
connector
12p (CN906)
4
connector
2p (CN907)
5
connector 2p (CN903)
2
connector
2p (CN901)
7
eight screws
(+PWH 3 
×
 8)
6
screw
(+BV 3 
×
 6)
qa
POWER board
q;
cover (PWB)
9
Remove the two claws
in the direction of the
arrow 
B
.
8
Remove the POWER board
and the cover (PWB) in the 
direction of the arrow 
A
.
heatsink (AMP)
harness
screw
lead pin
Clamp the harnesses with a 
lead pin or a similar tool so 
that they do not touch this 
screw and the heatsink (AMP).
Attach the heat radiation sheets
on the chassis, and then install 
the POWER board. 
Attention at assembling 
POWER board. 
Because of prevention of 
damage caused by creep of
radiation sheets, outfit a power
board with the set after fiting
the cover (PWB) on the POWER
board.
radiation sheets
A
B
Abbreviation
E32 : 110 – 240V AC area in E model
MX : Mexican model
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