Inhaltsverzeichnis
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GRUNDIG Service
Hauptplatte – Speicher / Main Board – Memory
M1_D[0..15]
M1_D QM
M1_ DQM
M1_WE _n
M1_W E_n
M1_CAS_ n
M1_CAS _n
M1_RAS_ n
M1_RAS _n
M1_ BA
M1 _BA
M1_A[0..10]
M2_D[0..15]
M2_D QM0
M2_W E_n
M2_CAS_ n
M2_RAS_ n
M2_SCS0_ n0
M2_A[0..11]
Hauptplatte / Main Board – Frontend 1
USE ONLY
MASK-ROM
VERSION
CPU_D+3.3V
WAITSODC
NRD
NWEL
RS239 0R
NSODCCS
NROMCS
0R
RS242
CPUADR0
CPUADR1
RPS11
CPUADR2
22K
CPUADR3
CS246
0.1uF
CS250
0.1uF
CLK16M
34
VCC3V
U2
1
54
VDD1
VSS3
M1_D0
2
53
DQ0
DQ15
3
52
VDDQ1
VSSQ4
M1_D1
4
51
DQ1
DQ14
M1_D2
5
50
DQ2
DQ13
6
49
VSSQ1
VDDQ4
M1_D3
7
48
DQ3
DQ12
M1_D4
8
47
DQ4
DQ11
9
46
VDDQ2
VSSQ3
M1_D5
10
45
DQ5
DQ10
M1_D6
11
44
DQ6
DQ9
12
43
VSSQ2
VDDQ3
M1_D7
13
42
DQ7
DQ8
14
41
VDD2
VSS2
15
40
LDQM
NC2
16
39
/WE
UDQM
17
38
/CAS
CLK
18
37
/RAS
CKE
19
36
/CS
NC1
20
35
BA0
A11
21
34
BA1
A9
M1_ A10
22
33
A10
A8
M1 _A0
23
32
A0
A7
M1 _A1
24
31
A1
A6
M1 _A2
25
30
A2
A5
M1 _A3
26
29
A3
A4
27
28
VDD3
VSS1
SDRAM_4X 16
VCC3V
U3
1
50
VCC
GND
M2_D0
2
49
DQ0
DQ15
M2_D1
3
48
DQ1
DQ14
4
47
GND
GND
M2_D2
5
46
DQ2
DQ13
M2_D3
6
45
DQ3
DQ12
7
44
VCC
VCC
M2_D4
8
43
DQ4
DQ11
M2_D5
9
42
DQ5
DQ10
10
41
GND
GND
M2_D6
11
40
DQ6
DQ9
M2_D7
12
39
DQ7
DQ8
13
38
VCC
VCC
M2_D QM0
14
37
DQML
NC
M2_WE _n
15
36
WE
DQMU
M2_CAS_ n
16
35
CAS
CLK
M2_RAS_ n
17
34
RAS
CKE
M2_SCS0_ n0
18
33
CS
NC
M2_ A11
19
32
BA
A9
M2_ A10
20
31
A10
A8
M2 _A0
21
30
A0
A7
M2 _A1
22
29
A1
A6
M2 _A2
23
28
A2
A5
M2 _A3
24
27
A3
A4
25
26
VCC
GND
SDRAM_1Mx16
RPS8
47K
8
7
8
7
6
5
6
5
4
3
4
3
2
1
2
1
8
7
8
7
6
5
6
5
4
3
4
3
2
1
2
1
RPS7
47K
RPS9
47K
1
WAIT/P60
2
NRD/P61
3
WEL/P62
4
P63
5
P50
6
CS1/P51
7
P52
8
P53
9
P54/SW2
10
P55/SW3
11
U7
P56
12
P57
13
A0/P20
14
A1/P21
15
A2/P22
16
A3/P23
17
MN102H6 0G
VDD
18
NC
19
VSS
20
XI
21
XO
22
VDD
23
OSCI
24
OSCO
25
MODE
M1_CLKO
M2_WE _n
M1_D1 5
M1_D1 4
M1_D1 3
M1_D1 2
M1_D1 1
R47
22R
M1_D1 0
M1_D9
C72
10PF
M1_D8
M1_ DQM
M1_ DQM
M1 _A11
M1_CS_ n0
M1 _A9
M1_CS_n 0
M1 _A8
M1 _A7
M1 _A6
VCC5V
M1 _A5
M1 _A4
M2_D 15
M2_D 14
M2_D 13
M2_D 12
M2_D 11
M2_D 10
M2_D 9
M2_D 8
M2_D QM1
M2_D QM1
M2_CLKO
M2_CLKO
R48
22R
M2 _A9
M2 _A8
M2 _A7
M2 _A6
M2 _A5
M2 _A4
C69
10PF
S+5V
A+5V
S+9V
RS237
0R
CS292
RS238
0.1uF
10K
RPS10
75
NMI
74
7
PULLUP0
7
73
5
PULLUP1
5
72
3
P75/SBO1
3
71
1
P74/SBI1
1
70
P73/SBT1
69
P72/TRY-SW+
47K
68
P71/TRY-OPEN
67
P70/AGC
66
VDD
65
P97/DSLFC
64
P96/DSLFT
63
P95/ERROR
62
P94/UDE-HP
61
AVSS
60
P93
59
P92
58
P91/HFMON
57
P90/TRYDRV2
56
P87/TRYDRV1
55
P86/TRY_MUTE
54
VREF(VDD)
53
P85/FEPRESET
52
SBO3
51
SBI3
CPU_D+3.3V
RS253
10K
RS254
0R
RS255
100K
RPS12
RS256 100K
7
8
7
8
5
6
5
6
3
4
3
4
1
2
1
2
47K
2 - 8
C74
104
C65
VCC5V
R50
47U/16V
0R
U4
4MFLASH-PLCC32
CN4
GND
1
S+5V
2
AGND
3
A+5V
4
5
S+9V
6
06PIN
8
8
6
6
4
4
2
2
RS243 10K
RS244
0R
CS294
0.1uF
RS247
22K
RS248
33K
RS249
1K
RS250
1K
RS251
27K
27K
RS252
FBS82
+
CS248
FBS89
100uF/16V
FBS90
GDP 2200
NINT0
CLK16M
ODCIRQ
ADSCIRQ
WAITSODC
RST
CPUDT0
CPUDT1
CPUDT2
CPUDT3
CPUDT4
CPUDT5
CPUDT6
CPUDT7
NSODCCS
NWEL
NRD
CPUADR0
CPUADR1
CPUADR2
CPUADR3
CPUADR4
CPUADR5
CPUADR6
CPUADR7
CPUADR8
CPUADR9
CPUADR10
CPUADR11
CPUADR12
CPUADR13
CPUADR14
CPUADR15
CPUADR16
CPUADR17
TRV-SW+
HFMON
TRY-OPEN
TRYDRVSEL
TRYDRV
TRY_MUTE
TRY_REF
SD+3.3V
CPU_D+3.3V
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