GRUNDIG Service
Hauptplatte / Main Board – Interface
Reference
Block Diagrams .......... 3-2
Oscillograms .............. 3-3
Connection Overview 3-5
Main Board
– M1 ............................. 3-8
– M2 ............................ 3-9
– M3 ........................... 3-10
– M4 ........................... 3-10
– M5 ........................... 3-11
– M6 ........................... 3-12
– M7 ........................... 3-13
Power Supply ............. 3-15
Keyboard Control ....... 3-17
THIS CONNECTOR (XBUS) IS USED FOR SW
DEVELOPMENT, FLASH PROGRAMMING, AND
CONNECTING WITH OTHER HW DEVELOPMENT
PLATFORMS AND LOGIC ANALYZER.
JUMPER SETTING
1-2
SW DEVELOPMENT (SRAM)
3-4
PRODUCTION (FLASH)
Note: For production version, the
jumper is not assembled. Instead,
assemble the zero-Ohm resistor.
(M7)
100 PIN, 0.8MM PITCH
2
+5V
4
+5V
6
+3.3V
8
+3.3V
10
SPARE1
12
SPARE2
14
GND
AD30
16
AD30
AD28
18
AD28
AD26
20
AD26
AD24
22
AD24
AD23
24
AD23
AD22
26
AD22
AD21
28
AD21
AD19
30
AD19
AD17
32
AD17
AD16
34
AD16
AD15
36
AD15
AD14
38
AD14
AD13
40
AD13
AD12
42
AD12
AD11
44
AD11
AD10
46
AD10
AD8
48
AD8
AD7
50
AD7
AD6
52
AD6
AD5
54
AD5
AD3
56
AD3
AD1
58
AD1
60
GND
PWE0-
62
PWE0-
64
GND
LA0
66
LA0
LA2
68
LA2
70
GND
RD-
72
RD-
74
GND
LHLD
76
LHLD
XJP1
78
GND
SRAMCS-
80
SRAMCS-
PCS0-
1
2
FLASHCS0-
82
GND
3
4
R129
XIO3
84
XIO3
J16
0R
86
GND
XIO5
88
XIO5
90
GND
XIO7
92
XIO7
94
GND
XIO9
96
XIO9
98
GND
XIO11
100
XIO11
J18
AMP179030-4
FLASHCS0-
MANUFACTURER: AMP
P/N: 179030-4
1
+5V
3
+5V
5
+3.3V
7
+3.3V
SRST-
9
SRST-
RSTP-FPGA-
11
RSTP-
13
GND
AD31
15
AD31
Reset
AD29
17
AD29
Button
AD27
19
AD27
AD25
21
AD25
23
GND
PWE3-
25
PWE3-
27
GND
AD20
29
AD20
AD18
31
AD18
33
GND
PWE2-
35
PWE2-
37
GND
SCLKR
39
SCLK
41
GND
43
ACK-
ACK-
45
GND
AD9
47
AD9
49
GND
PWE1-
51
PWE1-
53
GND
AD4
55
AD4
AD2
57
AD2
AD0
59
AD0
61
GND
ALE
63
ALE
65
GND
LA1
67
LA1
LA3
69
LA3
71
GND
LHLDA
73
LHLDA
75
GND
PCS0-
77
PCS0-
79
GND
XIO1
81
XIO1
83
GND
XIO4
85
XIO4
87
GND
XIO6
89
XIO6
91
GND
XIO8
93
XIO8
95
GND
XIO10
97
XIO10
99
GND
3 - 13
Xenaro – GDP 42...
AD[31:0]
AD[31:0]
M1,3
SRST-
M1,3,5
t_reset=0.5s
D13
V3.3
M1,2,3,4,5,6
1N4148
R99
100K
RSTP-
RSTP-
M1
R102
C132
330R N/A
10uF
6.3V
2
RC Reset
SW1 N/A
SW-SPST-MOM-2P
ASSEMBLED ON BOTTOM SIDE.
SHORT WIRES
R105
3.3K
LA3
R103
3.3K N/A
LA2
R101
3.3K
LA1
R100
3.3K N/A
LA0
Model Option resistors
R100 - R105
LA3
LA2
LA1
LA0
LA[3:0]
LA[3:0]
M1,3
PWE3-
PWE3-
M1
PWE2-
PWE2-
M1
PWE1-
PWE1-
M1
PWE0-
PWE0-
M1,3
SCLKR
SCLKR
M1
ACK-
ACK-
M1
ALE
ALE
M1,3
LHLDA
LHLDA
M1
LHLD
LHLD
M1
RD-
RD-
M1,3
PCS0-
PCS0-
M1
XIO[11:1]
XIO[11:1]
M1
FLASHCS0-
M3
M7