Kenwood K-323 Service Manual page 15

F
D
OSC)
C64
0.1
OUT
CT1
33u25
GND
C65
0.01
GND
DGND AUDIO
R83
5.1K
IC8
109
NC4
110
JT CK
111
JT RST
112
DR BA1
113
DR BA0
114
DR A11
115 MD
DR A10
LASER DIGITAL
LD
CONTROL EQUALIZER
116
DR A9
ADC1
ADC2 AUX ADC
117
DR A8
118
DR A7
119
DR A6
120
DR A5
121
VDD18 4
122
VSS 5
A
123 B
VDD33 5
124 C
DR A4
125 D
DR A3
126 E
DR A2
127 F
DR A1
128
DR A0
129
DR WR
130
PLL
DR CAS
131
DR RAS
132
DR CLKE
133
QUARTZ/
DR CLK
134
CERAMIC
VSS 6
135
VDD33 6
136
DR D15
137
DR D14
138
DR D13
139
DR D12
140
GPB9
141
GPB10
142
GPB11
143
DR D11
144
DR D10
DGND
+3.3VD
G
+3.3V AUDIO
DGND
+
DIGITAL PLL CROSS
SYNC PROTECTION & INTERLEAVING
EFM DEMODULATOR REED-SOLOMON
SUB CODE
DECODER
A+C,B+D,E,F
1.7k x 32 PRAM
256 x 16 XRAM
A+C TRACK COUNT
256 x 16 YRAM
B+D JUMP SPEED
DECIM.
E TE
TRACK LOOP FILTER
RATE
F FE FOCUS LOOP FILTER
SLED LOOP FILTER
DEFECT
DAC
ANALOG
FILTER
AUDIO
L/R OUT
C110 C104
1 1
DGND
AGND
+1.8VD
H
+3.3VA
+1.8VD
+3.3VD
C114
0.01
C113
R173
0.01
DGND
4.7K
DE-SCRAM
CLV FRAME
BUFFER ORG
RSPC
DSP
PDM/
STEPPER
SPINDLE MOTOR
EXT
FEEDBACK (CAV)
MEM
FOCUS ACTUATOR
TRACK ACTUATOR
SLED MOTOR
SPINDLE MOTOR
C72
C69
X2
1 33.86MHz
1
C71
0.1
+3.3VA IC
I
IC3 : M25P20-VMN6P Q6 : 2N3906S
IC4 : SMD5032 Q7 : 2N7002
IC8 : STA1052Z1 Q8 : 2N3904S(ZC)
IC12 : LM1117S-1.8V
IC14 : IC42S16400F
IC15 : SA5810
R125
Q7
10K
R70
0
R75
100
SDRAM INTERFACE
FADE/
MUTE/
DEEMPH
AHB ITF
ARM SUBSYSTEM
EXTERNAL OBS/
INTERRUPT DEBUG
R85
10K
AGND
AGND
CD (2/3)
J
K-323
S
G
+B
+3.3VA
+3.3V AUDIO
+1.8VD
+3.3VD
72
GPA0
71
I2S BCLK
70
I2S SDO
69
GPA12
68
GPA11 S
67
GPA10
66
GPA9 ST
65
I2S LRCK
64
CAV T53
R1
63
TFSR
68K
62
VDD33 2
61
VSS 2
DGN
60
VDD18 2
59 T54
SLED2
R3
8.2K
58
SLED1
R7
57
SPDL
15K
56
REF FSR
R2
55
FFSR
30K
54
TESTEN
53
RESETN
52
VSS 0
51
FE VSSA18AD
50
FE VDDA18AD
C76
49
FE VSSA33T
48
1
FE TESTN
AGND
47
FE TESTP
46
FE VDDA33T
45
FE VDDPAD2
T56
44
FE LD1 LAS L
43
FE LD LAS
42
FE CAP LAS
T57
41
FE MD LAS M
40
FE VSSA33R
R84
39
FE REXT
C68
C66
38
FE CEXT
C85
37
FE VDDA33R
+3.3VA IC
+1.8VD
+1.8VA
15