XM-N502 - Sony Car Audio Service Manual (repair manual). Page 5

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XM-N502
5
3-3.  MAIN  BOARD  BLOCK
3-4.  MAIN  BOARD
– Bottom view –
boss
boss
1 three screws
 
(+P, TT, B-TYPE, 3 
u L)
1 three screws
 
(+P, TT, B-TYPE, 3 
u L)
1 three screws
 
(+P, TT, B-TYPE, 3 
u L)
2 screw
     (+B, TT, B-TYPE, 3 
u L)
Note 1: Please spread a sheet under a unit
 
not to injure heat sink (main).
3 MAIN board block
 Note 
2: When installing the MAIN board block,  
 
 
align two holes and two bosses.
hole
hole
4 MAIN board
RV301
RV301
RV301
3 sheet heat transfer S
sheet heat transfer S
‡6KHHWKHDWWUDQVIHUVHWWLQJ
NG
OK
2 front panel
front panel
front panel
MAIN board
1 screw
     (+P, TT, B-TYPE, 3 
u L)
1 screw
     (+P, TT, B-TYPE, 3 
u L)
1 screw
     (+P, TT, B-TYPE, 3 
u L)
1 screw
     (+P, TT, B-TYPE, 3 
u L)
Note: When installing the front panel, 
 
check that RV301 must be stay 
 
in the center of the hole.
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