Grundig GDR 5550 HDD, Service Manual

Page: 40 / 41

NOTE:USE THE SOP24 A ND DIP24 IN PCB
IR
CLK
DATA_ TIME
RESET _TIME
D_FM
D_ HOST
RST _MPEG
B_ VO
RD Y_FM
MPEG_ SCK
AT N_FM
DATA
CS
RST_ MPEG
DATA_ TIME
CLK
OSC1
P_CON
OSC2
RESET _TIME
D_FM
D_ HOST
RD Y_FM
OSC2
IR
MPEG_ SCK
AT N_FM
OSC1
F+
F-
F+
F-
-24 VV
P_CON
LED1
DA TA
CS
VCC
CLK
LED1
VCC
V_BATT
VCC
V_BATT VCC
VCC
VCC_S TB
VCC
VCC
-24 VV
K7 01
U702
05(GREEN)
1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 3
F
1
F
1
1G 2G 3G 4G 5G 6G 7G N
C
N
C
N
C
N
C
N
C
N
C
P
1
P
2
P
3
P
4
P
5
P
6
P
7
P
8
P
9
P
10
P
11
P
12
P
13
P
14
P
15
P
16
N
C
F
2
F
2
N
C
K7 04
K7 03
U703
LH316
1
2
3
4
5
6
7
8
9
10
11
12 13
14
15
16
17
18
19
20
21
22
23
24
JP701
FFC8A
1
2
3
4
5
6
7
8
C724
5p
C721
0.1u
C723
5p
D703
1N4148
1
2
U710
HT13 80
1
2
3
4 5
6
7
8
NC
XT1
XT2
VS S RESET
DIO
CLK
VDD
R712 33R
D702
1N4148
1
2
R713 33R
R717
10K
C717
22p
C701
22p
K7 06
C703
0.1u
D708 1 2
U701
PT6312
1 2 3 4 5 6 7 8 9 10 11
12
13
14
15
16
17
18
19
20
21
22
23 24 25 26 27 28 29 30 31 32 33
34
35
36
37
38
39
40
41
42
43
44
S
W
1
S
W
2
S
W
3
S
W
4
S
D
ou
t
S
D
in
G
N
D
S
C
LK
/C
S
K
E
Y
1
K
E
Y
2
KE Y3
KE Y4
VDD
SEG1 /K1
SEG2 /K2
SEG3 /K3
SEG4 /K4
SEG5 /K5
SEG6 /K6
SEG7
SEG8
S
E
G
9
S
E
G
10
S
E
G
11
S
E
G
12
V
E
E
S
E
G
13
S
E
G
14
S
E
G
15
S
E
G
16
G
6
G
5
G4
G3
G2
G1
VDD
LED4
LED3
LED2
LED1
GND
OSC
D701
1N4148
1
2
C705
22P
C709
22P
R704
10K
R701
300
R722
4.7K
R706
51K
C716
0.1u
C710
22P
C702
22p
+ C704
47 uF/10V
R703
10K
R709
10K
R708
10K
C708
0.1u
C706
0.1u
Y702
12M
1 2
R721
10K
Y701
32 .768K
1 2
D709
1
2
R705
10K
JP702
FF C8A
1
2
3
4
5
6
7
8
LED7 01
1 2
K7 07
R707
10K
R711 33R
+ C707
47 uF/10V
K708
K702
U704
REM
1
2
3
4 5
IR
GND
VCC
G
N
D
G
N
D
K7 10
K705
K7 09
17
13
16
14
15
5
Bedieneinheit / Keyboard Control Unit
5
connect mains plug (trigger: VCC)
#
$
Mode: Press any key
%
^
Mode: Press any key
GR
UNDIG Ser
vice
GDR 5550 HDD
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