Kenwood K-323 Service Manual page 18

U
K-323
1
MAIN
2
CP103
AGND 33
HP R OUT 32 HP-R
AGND 31
30
HP L OUT HP-L
HP SELECT IN 29 HP SELECT
REC R OUT 28 REC-R
AGND 27
3
REC L OUT 26
AGND 25
AGND 24
23
4052 R IN
AGND 22
4052 L IN 21
4052 B 20 B
AUDIO-
CP601 19 A
4052 A
SPDIF IN0 18
T-5
2/5
D-LINK CTRL 17
VDD9 16 +9V-1
VCC5 15 +5V
VCC33 14 +3.3V-1
-VCC33 13 -3.3V
DGND 12
11 RDATA
RDATA
4 RCLK 10 RCLK
TUNED 9 TUNED
T SDA 8 T SDA
T SCL 7 T SCL
TST 6 TST
A-MUTE 5
4
DGND
USB D+ 3
USB D- 2
DGND 1
R187
4.7K
CP101
5
D+ 1
D- 2
USB GND 3
4
CD SCL SCL
CD SDA 5 SDA
CD CRQ 6 CRQ
DGND 7
MCLK 8
BCLK 9
R183
CD-
SDO 10
CN23
LRCK 11
N-2
1/5
EM EJT 12 EM EJT
AGND 13
TP4
CD-R OUT 14
AGND 15
TP5
CD-L OUT 16
R186
17
CD INSERT
1K
6
CD RESET 18 RST
+3.3V 19
M GND 20
CD +9V 21
CD +9V 22
7
18
MAIN (1/3)
V
+B
R203
MCLK
R201
100
CTRL1
R212
100
CTRL2
FB201
R206
LRCK
R207
BCK
REC-L
R174
R173
C135 R163 C140
0.33u50 4.7K 0.33u50
+ +
C187
0.1
C136 R162 C141
0.33u50 4.7K 0.33u50
+ +
Q120
C182
1
IC106
1
OUT C1+
2
IN
3
C1- GND
R184 82 C181 0.01
R185 100 C166 0.01
C167
FB118
0.01
C170 47P
C171 R181
0.022 1.5K
D101
R197 C189
2.2 0.1
C199
R198 C190
0.01
2.2 0.1
W
Q201
IC201
1
VDD
2
4
MCLK
3
RESERVED
4
PLL CTRL0
VOLTAGE
5
REGULATOR
PLL CTRL1
2
SERIAL
6
DATA/
PLL CTRL2
TDM
7
INPUTS
PLL GND
MASTER
PLL
CLOCK
8
PLL VDD
INPUT
9 SERIAL
4
12C FILT EN
SPI I/O CONTROL
10
INTERFACE
LRCK IN
11
BCLK IN
12
GND
C334
0.033
C206
0.1
+B
IC104
LRCK
8 BCK
SERIAL
x1/64 SCKI
INTERFACE
9 DOUT
DECIMATION
FILTER
10 MD0
DGND
with
MODE/
11 MD1
HIGH-PASS
FORMAT
VDD
FILTER
12 FMT CONTROL
VCC
AGND
13 VINL
CLOCK and TIMING CONTROL
DELTA-SIGMA DELTA-SIGMA
MODULATOR MODULATOR
VREF
ANTIALIAS ANTIALIAS
LPF LPF
14 VINR
5 FB120
4
IC105
1 RXP3
2 RXP2
3 RXP1
RECEIVER
4 RXP0
CLOCK &
5 RXN
DATA
RECOVERY
6 VA+
AGND
7
AES3
8 FILT S/PDIF
DECODER
9 RST
MISC
TX PASSTHROUGH
CONTROL
RXP4
10
8 : 2
MUX
11 RXP5
FORMAT
DETECT
12 RXP6
13 RXP7
14 AD0/CS
X
+3.3V-6
+B
+3.3V-5
36
GND
35
VCLK OUT1
34
LRCK OUT1
33
ODVDD
32
SDATA OUT3
R327
31
SDATA OUT2
28 x 28
30
2 SDATA OUT1
DSP CORE
R211
29
2 SDATA OUT0
28
DATA FORMAT:
ODVDD
5.23(SINGLE SERIAL
PRECISION DATA/
TDM
OUTPUTS
10.46(DOUBLE
PRECSION)
27
BCLK OUT0
RAM ROM 26
LRCK OUT0
25
VDD
R208
1K
+B
Q110
R135
150K
Q109
R134
BCK
62K
Q108
R175
7
R133
LRCK
33K
R176
6
MCLK
Q107
R132
5
20K
4
Q106
3
R131
2
11K
Q105
R130
5.6K
1
Q104
R129
2.2K
R188
91K
OSC101
24.576MHz
4 3
VCC OUT
1 2
NC GND
OLCLK 28
SERIAL
OSCLK
27
AUDIO
SDOUT 26
OUTPUT
OMCK 25
RMCK 24
DE-EMPHASIS
FILTER
VD+ 23
DGND 22
C & U bit
DATA BUFFER VL+ 21
GPO0 20 R180 100
n : 3
GPO1 R179 100
19
MUX
CONTROL
R151 47K
AD2/GPO2 18
PORT &
REGISTERS
R150 1K
SDA/CDOUT 17
SDA
R149 1K
SCL/CCLK 16
SCL
AD1/CDIN 15
Y
R260
FB202
+3.3V-5
R265 10K
R261
AMP BCK
R262
DAC BCK
R263
AMP LRCK
R264
DAC LRCK
R266 10K
SKDN
SKUP
ITDN
ITUP
FSTP
FPLY
PLYPAS
R160
LRCK
R161
LRCK
R168
BCK
R170
BCK
R159
MCLK
R158
MCLK
R157
DAC MCLK
R156
AMP MCLK
FB119
GPO0
GPO1