Panasonic SJ-MR220 Schematic Diagrams page 4

:POSITIVE VOLTAGE LINE
E C H
R503
330K
R502
330K
1 VREF-
1.8V
2 REM KEY
2.2V
3 KEY IN
C503 (0V) 1.2V
4 TEMP
0.01
1.4V
5 BATT1
0V
6 LDPADJ
C511
7 DOCTOR
100P
R513
8 OUTC
100K
2.1V
9
2.2V
10 VREF+
2.2V
11 V
0.9V
12 OSC2
1V
13 OSC1
X501
14 Vss
(10MHz)
15 XI
16 XO
17 MMOD
2.2V
18 REM DATA
1.8V
19 LINK RXD
20 LSI STAT
C516
2.2
E
F
R510
10K
2.2V
2 1
IC503
GND RST
C0EBC0000035
V RESET
DD
3
2.2V
I A B G H I J F G L
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61
IC501
1.5V
MN101C61GAB
P-P
SYSTEM CONTROL/
LCD DRIVE
F=10MHz
DD
0.9V
P-P
PLAY
F=10MHz
T 6.7ms.
21 22 23 24 25 26 27 28 29 30 31 32 33 34
p q
i j k m n
M N O P Q R S D J
R504
330K
R505
100K
R506
100K
A
B
C
D
2.1V
DC IN DET 60
2.1V
HOLD SW 59
2.1V (0V)
PROTECT 58
2.1V (0V)
MHEAD UP 57
DEBUG2 56
2.2V
DEBUG1 55
NC 54
2.2V
MUTE B 53
0V
MUTE A 52
2.2V
MONI OFF 51
2.2V
LCD CNT 50
2.1V
DC IN WAKEUP 49
1.8V
EL ON 48
0V (2.2V)
AKM PDN 47
2.2V
0V (2.2V)
AKM CCLK 46
0V (2.2V)
0V
AKM CSN 45
0V (2.2V)
AKM CDTI 44
0V
EE P DATA I 43
0V
EE P DATA O 42
0V
EE P CK 41
35 36 37 38 39 40
r
SJ-MR220(EB,EG,GCS,GH) MAIN SCHEMATIC DIAGRAM
IC502
C3EBCG000052
EE PROM
0V
5 GND DO 4 A
0V
NC DI B
6 3
0V
7 NC CLK 2 C
2.2V 0V
8 V CS 1 D
CC
R507
220K
TP429
R508
TP430
220K
S2-1
(OPEN/CLOSE)
S2-2
(PROTECT)
R511
220K
T
U
V
W
X
E
F
G
H
I
A
B
C
D
Y
Z
a
b
d