Grundig DVD-P 7000, Service Manual

Page: 23 / 42

GRUNDIG Service
DVD-P 7000
2 - 7
EACH POWER PIN -- A BYPASS CAP ACITOR
(P2.5/A13)
(/RD/P3.7)
(T0/P3.4)
(P2.2/A10)
(P1.7)
(/INT1/P3.3)
(P1.5)
(/EA)
(P2.3/A11)
(P1.6)
(P1.2)
(P0.3/AD3)
(ALE)
(/RST)
(P0.0/AD0)
(VSS)
(P0.4/AD4) (RXD/P3.0)
(P2.1/A9)
(P2.6/A15)
(P0.1/AD1)
(P2.6/A14)
(P0.5/AD5)
(P2.0/A8)
(/INT0/P3.2) (P0.2/AD2)
(P1.3)
(/WR/P3.6)
(VCC)
(T2EX/P1.1)
(T1/P3.5)
(P0.7/AD7)
(P0.6/AD6)
(/PSEN)
(T2/P1.0)
(P2.4/A12)
(TXD/P3.1)
(P1.4)
(XTAL1)
From EPP
FLASH ROM WR
1-2 From EPP
2-3 From CT908
Note: EPP Mode R307=NC
MA[0..11]
SD[0..7]
SD[0..7]
SA[0..19] SA[0..19]
MD5
/WE
MA11
MD10
/CAS
MD14
MD1
MA1
MA9
MD7
I2C_SDA
MA4
MD2
/RESET
I2C_SCK
MA8
MD9
MD15
MD3
MA7
MA10
MD0
BS1
MA2
MD12
MD11
/SEL_FWR
SDCLK
MD4
MA6
MD13
MD8
/PSEN
MA0
/RAS
DQM
MA3
MD6
BS0
MA5
/SCS
SA0
SD7
SD0
SD6
SD2
SD4
SD3
SD5
SD1
SA12
SA6
SA10
SA19
SA9
SA17
SA4
SA3
SA16
SA14
SA1
SA13
SA5
SA15
SA18
SA7
SA11
SA2
SA8
MD[0
..
1
5
]
MA[0
..
1
1
]
SA[0
..
1
9
]
MD[0..15]
SD5
SA14
I2C_SCK
SA15
SD0
/RD
SD4
TFT_Power_C /ROM_WR
INSW
SA12
RXD
SA17
SD3
/VFD_CS
/PSEN
SA11
SA19
SA16
SD2
SD7
TXD
SA8
SD6
SD1
I2C_SDA
SA13
SA18
SA10
INTS P1-4
EMU
SA9
/WR
/ROM_WR
/SEL_FWR
/FWR
ALE
IR_IRQ
+3.3V
+3.3V
+3.3V
VDD
+3.3V
+3.3V
VDD
VDD
VDD
R310 33
W
986416D
H
U302
W986416DH
34
33
32
31
30
29
26
25
24
23
18
17
16
15
2
53
51
50
48
47
45
44
42
13
11
10
8
7
5
4
1
14
27
54
12
6 3
9
43
41
46
28
22
35
19
39
38
37
40
36
21
20
49 52
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
RAS
CAS
WE
LDQM
DQ0
DQ15
DQ14
DQ13
DQ12
DQ11
DQ10
DQ9
DQ8
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
VCC
VCC
VCC
VSS
VSSQ
VSSQ VCCQ
VCCQ
VCCQ
VSS
VSSQ
VSS
A10
A11
CS
UDQM
CLK
CKE
NC
NC
BS1
BS0
VCCQ VSSQ
C308
100n
R302
10K
L301
NU
R309 33
+
EC302
10u/16V
R305
4.7K
+
EC301
10u/16V
U303
24C02/SOP
1
2
3
4 8
7
6
5
E0
E1
E2
VSS
VCC
MODE
SCL
SDA
C307
100n
R301
10K
C304
100n
C302
100n
Q301
BC848B
C312
100n
C310
100n
C305
100n
C311
100n
R306
27K
C301
100n
C303
100n
C306
100n
R303
10K
R308 33
R307 0
+
EC303
10u/16V
J302
CONN SOCKET 20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
R304
4.7K
C309
100n
W
2
8J800B
/
T
U301
W28J800B/T
16
17
48
1
2
3
4
5
6
7
8
18
19
20
21
22
23
26
28
25
11
45
43
41
39
36
34
32
30
37
46
24
44
42
40
38
35
33
31
29
27
13
9
10
14
47
15
12
A18
A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
CE
OE
A0
WE
A-1/Q15
DQ14
DQ13
DQ12
DQ11
DQ10
DQ9
DQ8
VDD
GND
A1
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
GND
VPP
NC
NC
WP
BYTE
RY/BY RESET
D301
RLS4148
J303
CONN SOCKET 20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
C313
22p
J301
HEADER 3
1 2 3
MD[0..15]
/RESET
/RAS
/SCS
BS0
/PSEN
DQM
/SEL_FWR
/CAS
BS1
MA[0..11]
SA[0..19]
SDCLK
/WE
I2C_SDA
I2C_SCK
SD[0..7]
/RESET
/uPRST
EMU
I2C_SCK
/VFD_CS
TXD
RXD
I2C_SDA
/FWR
P1-4
/RD
/WR
ALE
IR_IRQ
AV_SW
TFT_Power_C
INSW
7
8
5
6
5
Hauptplatte – Speicher / Main Board – Memory