Panasonic SL-SX450EB, Service Manual

Page: 24 / 35

EXT
-IN
26 27
EXT
-OUT
78 79 80
VL3
VL2 VL1
V
CC
+B8
71
Vss
30
ICP11
PDOWN
39
PDOWN
S202
(REST
DET. SWITCH)
REST
31
PLAY
16
OPEN
8
OPEN
S
TAT
20
S
TAT
MUTEH
38
73
A
Vss
VREF
72 52
XBSLPSEL
+B8
29
X
OSC
OUT
SMCK
X
OSC
IN
28 37
POWER
6
+B3
KEY2
/RESET
25
X301
(32.768kHz)
HOLD
33
ON
OFF
S310
(HOLD)
MUTING
Q704
REGULATOR
Q11
+B1
REGB
+B2
15
AC
DET
CHARGE2
11
CHARGE2
RESET
Q16
RESET
Q19
NRST
+B8
+B8
+B3
RESET1
POWER
+B3
S201
(LASER
ON/OFF)
SWITCH-
ING
Q502
RESET
Q301
HEADPHONE
MUTING
CONT.
Q901,902,905
+B3
BLKCK
21
BLKCK
3
VMONIT
OR2
+B6
MLD
17
MLD
18
MCLK/SK
MCLK
19
MDA
T
A/DIO0
M
D
ATA
RW
43
GCTL
CHARGE
CONT.
Q12~14
+B3
9
CHARGE1
4
VMONIT
OR1
Z1
1
6KEY
C2BBGE000792
IC301
SYSTEM CONTROL / LCD DRIVE
POWER
SUPPLY
CONT.
POWER
SUPPLY
+B7
+B6
Q41
Q42
12
RAMCNT
13
HPCNT
ECS
14
DC IN
DET.
Q15
24
TYPESEL2
36
CHGSEL2
X2
42
X2
2
DOCT
OR
+B3
SL-SX450(EG,EB,EE,GC,GN) BLOCK DIAGRAM
CS SK DO
DI
GND
5
V
CC
8
1 2 3 4
+B8
LCD801
LCD DISPLAY
74~77
45,46
53~70
COM0~3
SEG0~17 SEG24,25
C3EBCG000096
IC302
EE PROM
7
+B3
KEY1
DC IN
DET.
Q15
35
CHG
D31
HPCNT
2 R6/LR6(UM-3)
BATTERIES
3V
DC IN
4.5V
S829
(VOL-)
S828
(VOL+)
S823
(EQ)
S825
( )
S827
( )
S821
(MEMO)
S822
(MODE)
S826
( )
S824
( / )
49
CHGSEL
+B8
NOTE
: PLAYBACK SIGNAL LINE
SL-SX450EB / SL-SX450EE / SL-SX450EG / SL-SX450GC / SL-SX450GN
24