Printed Wiring Board - Main Board (Side B) - Sony MZ-N420D Service Manual

MZ-N420D
6-3. PRINTED WIRING BOARD – MAIN BOARD (SIDE B) –
1 2
MAIN BOARD
A
B
C
IC852
D
E
F
BATT-(GND)
G
H
I
:Uses unleaded solder.
3 4
(SIDE B)
IC651
IC601 5 4
1 3
(VREC)
(TEST)
* IC801
* CSP(Chip Size Package)
W903
1
W
U
N
V
M602
OVER WRITE
(SLED)
HEAD UP/DOWN
5 6 7
OVER WRITE HEAD
W601 W602
(VC01)
(VOUT)
* IC501
* CSP(Chip Size
Package)
1
1 0
D R Y B A T T E R Y
S I Z E " A A "
( I E C D E S I G N A T I O N L R 6 )
1 . 5 V
10
W
M
U N
V
M603
M601
(SPINDLE)
40 40
When IC852 is damaged, replace the MAIN board.
8 9 10
SWITCH
&
LCD MODULE
(REG01)
1
16
64
17
TP1915
IC901
32 49
33 48
OFF
(REG03)
US HOLD
ON
US
TP1655
S806
(PROTECT)
1-686-318-
11
J304
• Semiconductor
Location
Ref. No. Location
D371 D-10
D605 C-3
D652 H-9
D653 C-5
D654 B-6
D851 B-10
S807
D901 C-8
D902 D-8
IC501 D-6
IC601 B-3
IC651 B-4
IC801 E-4
IC852 C-2
IC901 C-8
Q651 B-6
Q652 B-6
Q653 C-5
Q654 B-4
Q672 B-5
Q871 B-9
11
(11)