Kenwood DDX3028 Service Manual page 49

CC
7
2.9V
MD1
3.2V
MD14
2.9V
MD0
C68
3.2V
MD15
0.1
1.2V
0V
CLKO
R170 C82 C71
150 12P 0.1
C81
12P
3.2V
0V
1.1V ADOUT3
151
R142 0 R177 0
1.6V
150
R152 0 R178 0
1.5V
149
K116
R164
1.5V
148
3.1V
180
R305
0V
146 14
33
R254
0V
R306 C16 0
0V 148
144
33 0.1 C7
0V
149
0.1
151
0V
150
K108
0.2V
0V
2.1V
R160
30K
1.2V
1.2V
C93
1
2.1V
3.2V
K110
0.2V
131
K111
0.2V
130 15
K112 C73
0.2V
129
0.1
3.1V
FIN FOUT
R93 2.2K
11
127
TIN TOUT
R94 2.2K
126
0V
2
TEMP R267
DET
4.7K
3.2V
R141 3.3K
123
S5V
1.9V
R259 0
122
2.6V
121 1
0V
C
3.2V
D
3.1V
B
3.1V
1
A
R250 0
R253 0
2.3V
2.5V
2.6V
C168
2700P
1
S3.3V
2 11
2
13
12
11
3
CD
IC1 : BD8215EFV-X
IC3 : MM3233CF-X
IC7 : TC7PA53FU-X
IC8 : MFI341S2162-X
IC9 : RT3CLLM/EF/-X
IC10 : RT3K11M-X
IC301 : MN2DS0018MA
VIDEO LINE
IC302 : MM1701CH-X
SIGNAL LINE IC308 : NJU6368PF1-X
IC398 : LVU04678-01B
GND LINE
IC399 : M12L1281687TG2
B LINE
IC400 : AK4387ET-X
IC481 : R1EX24032ATAA
IC501,502 : TC74LCX373FT-X
14
AUDIO DAC
IC400
PCMCLK0
1
DZF
MCLK
R240
1.5V
BCK0 DVDD
0
2
BICK
VDD
R252 R99
AOUT0
0 0
3
SDTI 1.2V 0V
LRCLK0
R255 4
VSS
LRCK 1.6V
0
5
10 PDN VCOM
6
2.5V
7 CSN
AOUTL
DCLK0
7
3 CCLK
AOUTR
DDATA0
8 3.2V
DGND 2 CDTI P/S
11
ACC5V
4.4V
R303
S3.3V
0.18
S3.3V
3.2V
D3.3V
P3.3V
K103
P3.3V
0V
IC302
D1.2V
1.2V 1
D1.2V VOUT
0V 2
NC
0V 3
GND
4
CN
1.2V REG
0V
53
8
11 Q302
3.2V
Q301
0.1V
0V DGND
3
CE
Q2 : RT1N141U-X
Q4,7 : DSC2001/R/-X
Q101,103 : 2SB1424(Q,R)
Q105 : 2SC4617
Q301,302,304
: RT1N441U-X
D6,7 : AN1102W-6-X
DGND
16
R213
10
15 5.1V
R217
14 5.0V
10
13
C143
22
12
11
FL
10
R220 C151
FR
0 0.047
9 0V
DAC AGND
C155
100P
AGND
DGND
15
3.2V REG
IC3
15
1 8
NC NC
2 7
VDD CE 4.4V
12
3 6
VOUT GND
4 5
NC NC
0V
8 2.2V
VIN
7
NC
6 0V
0.3V NC
5 2.2V
CONT
R114
P3.3V
10K
Q304
36
DGND
3.0V
46
38
12
DGND
13
12
CF
DDX3028/3048/3058/318/4038/4038M
DDX4028BT/4038BT/4038BTM/4048BT/4058BT/418
CAUTION : For continued safety, re place
safe ty critical com po nents only with manufac-
turer's rec om mend ed parts (refer to parts list).
Indicates safety critical com po nents. To
reduce the risk of electric shock, leakage-
cur rent or re sis tance mea 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 pli ance is returned to the customer.
• 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.
CN403
DGND 6
1 DGND
DP
146 2 D+
D-
14 144 3 D-
4 DGND
DGND
ACC5V
5 ACC5V
BCK
6 NC
K132
LRMUTE
7 LRMUTE
ADOUT3 B
R241
8 NC
0
DAC AGND
9 DGND
LRCLK
DGND
10 NC
R242
AGND 1
11 AGND
0
AGND
USBNEN 2
12 USBNEN
K133
A5V
13 A5V
K136
F-Lch
FL 14 F-Lch
R248
AGND
0
15 DACGND
DAC AGND
K135
F-Rch
FR 16 F-Rch
17 D2V
D2V 1
18 D2V
19 DGND
TX 20 TX
21 DGND
K114
DGND UCS
11 22 UCS
K115
SCS
12 23 SCS
SACK
24 NC
K117
SCLK
58 25 SCLK
K118 0
U2SDT
U2SDT
57 26
K119 0
S2UDT
56 27 S2UDT
K120 0
CPURST
RST 28 CPURST
TSUBUYAKI 1
R105
54 29 TSUBUYAKI
0
DGND1
30 DGND
DAC4
138 31 CVBS
15
32 DGND
DAC1
131 33 Y(P)
34 DGND
DAC2
DGND
Cb(P)
130 35
129
K137
SW4
36 36 SW4
0
USBNEN 1 37 Cr(P)
SW1
38 38 SW1
S5V
S5V 39 S5V
40 D4V
D5V
41 D4V
42 M5V
DGND
M5V
M5V 43 M5V
44 M8V
M8V
M8V 45 M8V
46 M8V
47 MGND
48 MGND
49 MGND
MGND
50 MGND
MGND
70
CN402
1 VCC
TP320
2 RESET
R132
TP319
to ICE
1K
72 3 SCLK
R131
4 GND
TP318
73 5 SDATA
1K
6 GND
13
DVD UNIT (4/4)
CG
1
2
3
MAIN-
CN105
4
1/5
5
6
7
49