Sam4s ER-650, Service Manual

Page: 74 / 87

11-4 SAM4S ER-650 SERIES
11-3 BUZZER / POWER FAIL / RTC PART
1
CN
7
CN
2
CN
5
CN
8
3
D(
0
)
D(
1
)
CN
6
D(
3
)
D(
4
)
D(
6
)
D(
7
)
1.
0
7
of
1
DRAWE
R
1
2
DIS
D
I
5
L1
3
8
L1
1
2 2
1
TX
D
1
3 4
RX
D1
DS
R1
6
3
DW
R
_CO
M
P
2
DW
R
_CO
M
P
1
3
RX
D
2
CL
ERK
4
CL
ERK
3
5 4
6
DT
R2
IRC_
E
N
_R
D
CL
ERK
1
2 1
9
_R
E
S
ize
TI
TLE :
Re
v
E
R
-6
50
_R
M
A
IN
.SC
H
9
S
h
eet
1
DWR1
20
0
R7
1
D
ISL
AT
DWR2
20
0
R1
6
DIS
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N
Dr
aw
er
Co
m
puls
or
y
1
Dr
aw
er
Co
m
puls
or
y
2
RX
D
3
E
R
-6
50
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A
IN
P
C
B
JK
41
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00
11
C
(
R
T
C
: RS
5C
37
2A
)
Fi
le Na
m
e
A
B
C
30
V
VC
C
CN
3
CN
4
2
L15
VC
C
D(
5
)
D(
2
)
4
B
C
D
VC
C
VCC
2
D4 M4
D1 M4
7 4 1 6 3
L1
6
L1
2
DRAWE
R
2
2
1
C4 10
0n
F
10
K
R1
8
DWR_
C
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MP
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1
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CO
MP
2
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DT
R1
VC
C
5 2 4 1
VC
C
DS
R
2
TX
D2
VC
C
CL
ERK
2
C
O
VER
_
O
PEN
3
[Cl
erk Ke
y]
8 10 7
4
Da
te
A3
D
20
06
.0
5.
09
D
raw
n by
L4
3 2
1
Q4
KS
D
28
8-Y
DIS
C
L
K
L6
3 2
1
Q5
KS
D
28
8-Y
[ Rea
r Di
sp
la
y
(VFD
) ]
L3 L1
C1
7
10
0n
F
L9 L8
[ R
S
-232
#
1
]
[R
T
C
Chip
D
etec
t]
H:
RF
5C
15
L: R
S
5C
37
2A
CN
9
TX
D3
[ R
S
-2
3
2 #2
, I
R
C
]
DO
T
_P
R
RD
S
ung
ho
,K
IM
Di
sp
lay
/Dr
aw
er
/I
nt
er
fac
e/
C
ler
k P
ar
t
24
V
VC
C
L17
R3
3
4.
7K
24
V
4.
7K
R1
4
4.
7K
R9
VC
C
10
K
R3
0
10
K
R25
VC
C
4.7K R54
4.7K R47
4.7K R57
4.7K R46
4.7K R49
4.7K R52
R3
2
4.
7K
4.7K R59
10
K
R2
1
4.7K R61
19
O
E
2
1
O
E
1
11
Y7
7
A5
8
A6
14
Y4
13
Y5
4
A2
5
A3
17
Y1
16
Y2
2
A0
12
Y6
15
Y3
18
Y0
9
A7
6
A4
3
A1
10
GN
D
20
VC
C
74HCT541
U5
S
h
in H
eun
g Pr
ecis
ion C
o.,
Lt
d.
470pF C20
470pF C35
470pF C19
470pF C25
470pF C23
C29 100nF
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