DAV-DZ520K, DAV-DZ620K, HCD-DZ520K, HCD-DZ620K - Sony Audio Service Manual (repair manual). Page 14

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14
HCD-DZ520K/DZ620K
3-6. MAIN BOARD
3-5. IO-S TERMINAL  BOARD
3
wire (flat type)
    13core (CN201)
6
IO-S TERMINAL board
qs
SPEAKER board
qa
two screws (+BV 3 
×
 6)
5
three screws 
     (+BVTP 3 
×
 8)
7
connector (CN303)
8
connector (CN302)
4
wire (flat type)
    9core (CN303)
1
connector 
    (CN312)
2
wire (flat type)
    5core (CN304)
q;
two screws 
     (+BVTP 3 
×
 8)
9
connector (CN301) 
screw
lead pin
When assembling, 
clamp the three harnesses with 
a lead pin or a similar tool so 
that they do not touch this screw.
three harnesses
9
connector 
     (CN3000)
6
wire (flat type)
    23core (CN509)
5
wire (flat type) 5core (CN1202)
3
wire (flat type) 24core (CN1101)
2
wire (flat type) 7core (CN1302)
1
wire (flat type) 13core (CN1301)
q;
two screws (+BV 3 
×
 6)
qk
four screws (+BV 3 
×
 6)
w;
MAIN board
qj
four screws (+BV 3 
× 
6)
7
connector (CN515)
4
connector (CN1201)
ql
two clamps
When re-assembling, attaching the 
two heat radiation sheets on the 
IC MAIN board first, and then attach 
the heat sink (AMP).
heatsink (AMP)
radiation 
sheets
IC on the 
MAIN board
qs
HEATSINK
     B board
qg
heatsink (AMP)
qa
HEATSINK A board
qf
screw 
     (+BVTP 3 
×
 12)
qh
two radiation
     sheet
8
connector
    (CN3002)
qd
two screws 
     (+BVTP 3 
×
 10)
When re-assembling, leave 30 mm between 
harnesses A and B for safety. 
harnesses A
harnesses B
clamp
30mm
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