Roberts RecordR, Service Manual, Page: 25 / 25

C4 101
100
R2
100
R6 R1
7
100
R1
6
100
R1
9
3K
3
C
21
101
C
18
101
C
26
101
C
23
101
R94
10K
R13
100
100
R14
R15
100
R
109
0.
2
R5
6
100
102
C30
104
C43
103
C6
2
R95
10K
100
R1
C7 10 1
C12 101
47K
R1
1
100
R7 R1
8
3K
3
C1
4
101
C
22
101
10K
R20
C14 6
104
102
C123
22uH L2
C
139
151
R
134
0
R
110
0.
2
R104 3K
R
156
1K
5
L4
22uH
2 1
2 1
LED 3
LE
D
2 1
2
4
3 1
5
7
6 8
2 1 3
22 R4
1
10K R2
6
100K R16 1
O
I
G
102
C32
100
R5
4 2 1 3
TO -AUX 2_ INS ID E
CN5
4
VSS
2
IN
A
-
1
OUT
A
3
IN
A
+
5
IN
B
+
7
OUT
B
8
VD
D
6
IN
B
-
IC
7
P
T2308
7 5 6 4 2 1 3
TO CN 300
J
K
301
EAR
J
AC
K
R1
0
1K
R9
1K
R2
2
1K
1K
R2
5
R12
100
10K R3
2
C15
104
200
BD
8
10
8
6
4
2
1
7
5
3
9
{V alue}
W3
10
8
6
4
2
1
7
5
3
9
{V alue}
CN1
GND
DAT0
CLK
VDD
C/D
CMD
DAT2
W/P
VSS1
VSS2
DAT1
DAT3
S
D
S
R
09-C
0
-0000
SD
1
D5
1N5817
3
CT
2
ES
1
CS
4
GND
7
IPK_
SEN
8
CD
6
VC
C
5
IN
SC
A1
0
8
IC
6
C151 104
R8
1K
R2
3
1K
R2
4
1K
LED 2
LE
D
2 1
5
7
6
8
2
1
{V
a
lu
e
}
21
RS
T
18
L
CD_
E
19
DG
ND
16
L
CD0
13
L
CD3
14
LC
D
2/
I2C
_SD
A
_S
11
L
CD5
8
DG
ND/
D1
V
2
9
L
CD7
6
R
O
T
1_A
3
3V3I
N
4
DG
ND
1
3V3R
F
IN
17
L
CD_
RS
20
BAC
KLI
G
H
T
7
R
O
T
1_B
10
L
CD6
12
L
CD4
15
LC
D
1/
I2C
_SC
L_S
2
RFG
N
D
5
IR
22
GPIO0
24
G
P
IO
1/
R
O
T
2_B
25
GPIO2
/R
X
27
DG
ND
29
GPIO5
30
GPIO6
/T
X
32
I2
C
_
SD
A_M
34
GPIO7
35
AGN
D
37
AGN
D
39
AGN
D
40
A
DC1
42
A
DC2
23
MU
T
E
26
G
P
IO
3/
R
O
T
2_A
28
GP
IO4
/IP
OD
_
D
E
C
31
DG
ND
33
I2
C
_
SC
L_M
36
LO
U
T
38
RO
UT
41
DG
ND
G
Y
R
O
-1128-
V
0.
82
MD
1
:1
3
ON/O FF
1
VIN
2
VSS
4
FB
5
CONT
104
C42
6
SET1
4
RESET 1
2
Q1
1
Q1
9
DATA 2
3
CK1
7
VSS
5
DATA 1
8
SET2
11
CK2
13
Q2
14
VDD
12
Q2
10
RESET 2
2
4
3
1
6
INH
5
Y1
2
Y2
8
VSS
9
B
7
VEE
11
X3
10
A
12
X0
3
Y
14
X1
1
Y0
16
VDD
4
Y3
13
X
15
X2
4 2 1 3
T
O
PC
B-
A C
N
1
W
301
Q
801
LS
N
42
G TS R T
RS
AUX
JK303
7 5 6 4 2 1 3
TO W1
1
V0
4
PSI2B
7
VIN
10
SHLC
13
DB6
16
DB3
19
DB0
21
R/W
22
CSB
24
RESET
20
E
2
CAPI N
3
CAPI P
5
PSB
6
VOUT
8
VDD
9
SHLS
11
VSS
14
DB5
15
DB4
17
DB2
23
RS
12
DB7
18
DB1
2
NC
1
SH UTDOW N
3
IN+
4
IN-
5
VO+
7
GND
8
VO-
6
VDD
A13
I2
S
_
D
A
T
A
A15
DG
ND
A16
DG
ND
A14
I2
S
_
L
RCK
A9
DG
ND
A10
AGPI
O2/
D
SA_D
AT
A
A3
U
SB_C
L
K
A5
U
SB_D
M
A6
AGPI
O1/
D
SA_AC
K
A4
DG
ND
A1
DG
ND
A7
U
SB_D
P
A11
AGPI
O3
A17
I2
S
_
M
C
L
K
A8
AGPI
O1/
D
SA_ST
B
A2
SPD
IF
A18
I2
S_BC
LK
A12
AGPI
O4/
C
D
_
PW
R
G
Y
R
O
-1128-
V
0.
82
MD
1
:2
SCHEMATIC DIAGRAM
25