Kenwood KRF-X9995D Service Manual page 26

P Q
(X08-3090-11)
Q Q
3 7 6 3 1 5 1 5 0
1
IC36,37
INVERTER (33MHz OSC)
2
C608 1000P
53
BMSTR
R625 1 54
+B VDD
55
CS
R626 10K
56
SBTS
57
GND
58
58
58 WR
59
59
59 RD
60
GND
R627 1 61
+B VDD
62
C609 1000P
GND
63
REDY
64
SW
65
CPA
C610 1000P 66
3
+B
VDD
R628 1 67
+B VDD
68
GND
R629 10K
69
ACK
70
70 MS0
71
71 MS1
72
GND
73
GND
74
MS2
75
C612 1000P MS3
76
FLAG11
3.3V R641 1 77
+B VDD
78
T E FLAG10
R630 100 L 1 3 9 4 2 2 9 6 5 1 3
79
79 FLAG9
R631 100 80
80 FLAG8
81
GND
82
4
82 R632 100 82 DATA0
82
83
83 83 DATA1
R633 100
83
84
84 R634 100 84 DATA2
84
C613 1000P
R642 1 85
+B VDD
86
86 R635 100 86 DATA3
86
87
87 87 DATA4
R636 100
87
88
88 R637 100 88 DATA5
88
89
GND
90
90 90 DATA6
R638 100
90
91
91 R639 100 91 DATA7
91
5 92
92 DATA8
R643 1
93
+B VDD
C614 1000P
94
GND
R640 1 95
+B VDD
96
C611 1000P
96 DATA9
97
97 DATA10
98
98 DATA11
99
GND
100
100 DATA12
101
101 DATA13
102
NC
103
NC
104
104 DATA14
6
w w w
3.3V
+3.3V
7
The DC voltage is an actual reading measured with a high impedance type voltmeter with a cassette loaded at playback mode. The measurement value
may vary depending on the measuring instruments used or on the product. Bias circuit DC voltage is measured while in the record mode.
R S
C607
9P
IC37 IC36
C606 R624
9P 1K
C605
3.3V 1000P
+B
R622 1
+B +3.3V
37
IC31
DSP
x a o
+3.3V +3.3V
. i
T U
IC45 4
GND
5
3
6
DIGITAL
2
INPUT
7
BUFFER
1
8
VCC
3.3V
+3.3V +3.3V
3.3V
+B
IC35
INVERTER
(DSP REQUEST)
208
NC
207 R672 10K
IRQ2
R671 100
206
IRQ1
205 R670 100
IRQ0
204
GND
203
NC
R669 100
202
NC
C629 1000P
201
FLAG3
200 R668 1
VDD +B
199 R667 100
FLAG2 199
R666 100
198
FLAG1 198
197
FLAG0
196
GND
195
195
ADDR0 195
194
194
ADDR1 194
193
193
ADDR2 193
C628 1000P
192
VDD +3.3V
191 R664 1
VDD +3.3V
190
190
ADDR3 190
189
189
ADDR4 189
188
188
ADDR5 188
187
GND
Q Q
186
GND 3 7
185
185
ADDR6 185
184
184
ADDR7 184
183
183
ADDR8 183
C627 1000P
182 R663 1
VDD +3.3V
181
GND
180
ADDR9 180
179
ADDR10 179
178
ADDR11 178
177
GND
C626 1000P
R662 1
176
VDD +B
175
ADDR12 175
174
ADDR13 174
173
ADDR14 173
172 R661
VDD +B
1
171
ADDR15 171
C625
170
ADDR16 170
1000P
169
ADDR17 169
168
GND
167
GND
166
ADDR18 166
165
ADDR19 165
C624 1000P
164
ADDR20
163 R660 1
VDD +B
162
ADDR21
161
ADDR22
160
ADDR23
C623 1000P
159
GND
158 R659 1
VDD +B
157 R658 100
RESET
C622 1000P
u 1 6 3
y
+3.3V
DOLBY and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation. Noise reduc-
tion circuit made under license from Dolby Laboratories Licensing Corporation.
V W
2 4
8 9 9 R119
R121 1K 4.7K
80
IC6
DIR
R111 1K 15 14 R110 10K
3 AUTO DET RX4
R127 10K
13
R112 10K 16
RX3
P/S
12 C108 0.1
R113 1K
17 RX2
2 FS96 DET
11 C109 0.1
R114 1K 18
RX1
1 ERF
10
19
AVSS
LRCK
9
20
AVDD +B
SDTO
21 R107 18K
8
BICK
R
7 R106 1K
PDN
C105 0.1
6
XTO
22
DAUX
C112
47P 23 5
MCKO2
XTI
24
C114
4
MCKO1
47P V/TX
C110 0.01
C113
R115 1K
15P 25
6 CS
3
R116 1K 26 TVDD +B
10 CCLK 2
DVSS
206 R117 1K
27
9 CDTI
R118 470 28 1
8 CDTO DVDD +B
201
58
71
59
IC42 IC41
6 3 1 5 1 5 0 8 9
IC41,42
LATCH CONT.
R734
3.3V 1
3.3V
180
3.3V
+B
SDRAM (DSP)
IC34
26 25 25
VSS VDD +B
27 24 24
189 A4 A3 190
28 23 23
188 A5 A2 193
29 22 22
185 A6 A1 194
30 21
184 A7 A0 195
31 20 20
183 A8 A10 48
32 19 19
180 A9 A11 174
33 18 18
NC CS 70
34 17 17
47 CKE RAS 42
35 16 16
37 CLK CAS 43
36 15 15
46 UDQM WE 44
37 14 14
NC LDQM 46
38 13 13
+B VDDQ VDDQ +B
39 12 12
133 DQ8 DQ7 128
40 11
127 DQ9 DQ6 132
41 10 10
VSSQ VSSQ
42 9
122 DQ10 DQ5 126
157 43 8
123 DQ11 DQ4 118
44 7
+B VDDQ VDDQ +B
45 6
121 DQ12 DQ3 117
46 5
111 DQ13 DQ2 116
47 4
VSSQ VSSQ
48 3
108 DQ14 DQ1 113
49 2
m
109 DQ15 DQ0 112
50 1
VSS VDD +B
c o
+3.3V
.
X Y
2
8 9 9
DIGITAL
MUTE
RX OPT
12
11
IC38
C107 0.1
R108
3.3V 1
R105 C104
12.288MHz
1.5K 22P
C102 C103
1000P 22P
R125 100
4
R102 100
3
C101
0.1
TX OPT
R126
3.2V R101 10 2.2
+B
R665
100 IC39,40
8BIT LATCH
(DSP SUB u-COM)
+B
IC39 IC40
(BOTTOM VIEW)
2 4 9 8 2 9 9
+B
+3.3V
+B
SDRAM (DSP)
IC33
26 25
VSS VDD +B
27 24
189 A4 A3 190
28 23 R719 100
188 A5 A2 193 195
29 22
185 A6 A1 194 153
30 21
184 A7 A0 195
31 20
183 A8 A10 48
32 19
180 A9 A11 174
59
33 18
NC CS 70
82
34 17
47 CKE RAS 42
83
35 16
37 CLK CAS 43
84
36 15
46 UDQM WE 44
86
37 14
NC LDQM 46
38 13
+B VDDQ VDDQ +B +B
39 12
86 DQ8 DQ7 82
40 11
88 DQ9 DQ6 84
41 10 87
VSSQ VSSQ
42 9 88
87 DQ10 DQ5 83
43 8 90
107 DQ11 DQ4 90
44 7 91
+B VDDQ VDDQ +B
45 6 R721 100
101 DQ12 DQ3 91 179
46 5
R722 100
98 DQ13 DQ2 100
165
47 4
VSSQ VSSQ
48 3
97 DQ14 DQ1 104
49 2
96 DQ15 DQ0 92 R723 100
50 1 169
VSS VDD +B
58
3.3V