Kenwood KVT-512DVD Service Manual page 45

CC
+1.5V
D3.3V
16.897849MHz
C143 C144
X1
12P 12P
C120
0.022
C121 R87
0.022 1M
16.897849MHz 16.897849MHz
3.3V 2.0V
0.8V 0.8V
3.3V
0V
3.3V
0V
3.3V
0V
DRAMVSS1
1.6V
DRAMVDD151
3.3V
0V
3.3V
0V
3.3V
0V
3.3V
0V
EXCNT1(FG)
P4(CDON)
3V 0.6V
V 0.6V 0V
P3(SW LOEND)
3.3V
0V 0V
3.3V
0V 0V 3.3V
C79
7
CAUTION : For continued safety, re place safe ty critical com po nents only with manufacturer's rec om mend ed
R285-
59 R281 R282
287
parts (refer to parts list).
YES YES
Indicates safety critical com po nents. To reduce the risk of electric shock, leakage-cur rent or re sis tance mea-
ES YES
sure ments shall be carried out (ex posed parts are ac cept ably in su lat ed from the supply cir cuit) be fore the ap-
ES YES
ES YES
pli ance is returned to the customer.
ES YES
• DC voltages are as measured with a high impedance volt me ter.
Val ues may vary slight ly due to vari a tions between in di vid u al in stru ments or/and units.
CD
5
6 TX
6
IC5
C9
1
3.3V 1 4
OUT VDD
0V 2 3
VSS NC
3.3V
44 0V
MMOD
43
NOE OE
42
FADR10 A10
41 CP4 10K
NCE CE
40
FDT7 D7
39
FDT6 D6
38
FDT5 D5
37
FDT4 D4
36 CP3 10K
FDT3 D3
35
FDT2 D2
34
D1
FDT1
33
FDT0 D0
32 3.3V
VDD32
31 0V
VSS3
30
FADR0 A0
29
FADR1 A1
28
FADR2 A2 6
27
FADR3 A3
26
FADR4 A4
25
FADR5 A5
24
FADR6 A6
23
FADR7 A7
22
FADR12 A12
0V C85
21
VSS2
20
C83
19
72
18
FADR15 A15
17
FADR16 A16
16 0V
NWE WE
15
FADR14 A14
14
FADR13 A13
13
FADR8 A8
12 1.5V
VDD151
11
FADR9 A9
10
FADR11 A11
9 0V
FADR18 A18
8
FADR17 A17
R258 10K C82
7 3.3V
P6(NC)
6
C81
5 0V
VSS1
4 3.3V
VDD31
3 0V
TP200
0V
R81 10K
2 LOEND
1 0V
C445 R271
P2(SEL)
0.01 470
R281 10K
S2
+1.5V
CE
D3.3V
A10
FLASH ROM
IC3
25 24
A0 A1
26 23
CE CE A2
0V 27 22
VSS1 A3
3.3V
28 21
OE OE 0V A4
29 20
D0 DQ0 A5
30 19
DQ8 A6
31 18
D1 DQ1 A7
32 17
DQ9 0V A17
16
33
D2 DQ2 NC16
34 15
DQ10 RY/BY
35 14
3.3V
D3 DQ3 NC14
36 0V 13
DQ11 NC13
3.3V 37 12 3.3V
VCC RESET
38 11
D4 DQ4 3.3V WE
39 10
DQ12 NC10
40 9
D5 DQ5 NC9
41 8
DQ13 A8
42 7
D6 DQ6 A9
43 6
DQ14 A10
3.3V
44 5
D7 DQ7 0V A11
45 4
A0 DQ15 A12
46 3
VSS2 A13
47 2
0V
BYTE A14
48 1
A17 A16 A15
1.5V DET
IC8
1.5V
1 4
TP80
OUT 4.5V VDD
1.5V
2 3
VSS NC
0V
1.5V AVR
IC9
5
NC
4 1.5V
OUT
0V
6 3 0V
GND2 GND1
2
IN
1
EN
4.2V
3.3V AVR
IC7
5
TP79
NC
4 3.3V D3.3
OUT
0V
6 3 0V
GND2 GND1
2 4.4V
IN
4.1V
R113
1
EN
Q18
15K
Q19
0V
IC11
DATA
3.3V
MEMORY
TP117
SDA
SDA
C80
TP118
SCL
0.1
SCL
7
D3.3V
D5V-1
P5V
CF
KVT-50DVDRY/512/522DVD
/522DVDY/532DVD/532DVDM
5
R121
CN2
R120 82
1 RESET
10K
86 2 NC
A1
3 DGND
C451
85 4 NC
1000P
5 DGND
A2
RST CP5 33
A3
DD7 6 DD7
A4
DD8 7 DD8
A5
DD6 8 DD6
A6
DD9 9 DD9
A7
CP6 33
A8
DD5 10 DD5
A18
DD10 11 DD10
DD4 12 DD4
R84
DD11 13 DD11
47K
CP7 33
DD3 14 DD3
DD12 15 DD12
WE
DD2 16 DD2
DD13 17 DD13
CP8 33
A9
DD1 18 DD1
DD14 19 DD14
A11
DD0 20 DD0
A12
DD15 21 DD15
A13
22 DGND
A14
R123 33
133 23 DMARQ
A15
A16
24
DGND
R124 82
134 25 DIOW
26 DGND
C84 R125 82
137 27 DIOR
1
7
CP11
10K
CP9 33
138 28 IORDY
139 29 DMACK
140 30 INTRQ
R126 82
142 31 DA1
143 32 PDIAG
CP10 82
144 33 DA0
147 34 DA2
148 35 CS1FX
149 36 CS3FX
150 37 DASP
131 38 DISC DET
TP86 TP205
DGND DGND
39 DGND
40 NC(S/PDIF)
L5
30
41 D5V
TP82 D5V
42 D5V
43 PGND
TP207 TP84
44 PGND
PGND PGND
45 PGND
46 PGND
47 P5V
48 P5V
49 P5V
50 P5V
7
P8
P2
X37-1100
X37-1100-03 (3/3)
CG
1
2
3
4
5
6
7
45