JVC KD-LX111R Service Manual page 5

KD-LX111R
2.Pin functions(3/3)
Pin No. Symbol
95 BUSO
96 BUS1
97 BUS2
98 BUS3
99 DISCSEL
100 NC
TC9490FA (IC521) : DSP & DAC
1.Pin layout & Block daiagram
48 47
DV 49
SS3
50
RO
51
DV
DD3
LPF
52
DVR
LO 53
54
DV
SS3
55
ZDET
56
V
SS5
57
BUS0
58
BUS1
59
BUS2
60
BUS3
61
BUCK
62
/CCE
63
/RST
64
V
DD5
1 2
1-20
I/O Function
I/O Data communication input and output port 0 with CDLSI
I/O Data communication input and output port 1 with CDLSI
I/O Data communication input and output port 2 with CDLSI
I/O Data communication input and output port 3 with CDLSI
I H:not for 8cm DISC L:for 8cm DISC
O
46 45 44 43 42
Clock
generator
1-bit
DAC
Address
circuit
16k
RAM
Audio output
Digital output
circuit
Micro-
controller
interface
3 4 5 6 7
41 40 39 38 37
PWM
Servo control
ROM
Digital equalizer
automatic
adjustment circuit
RAM
CLV servo
Sync signal
protection
EFM
Sub code
detector
8 9 10 11 12
36 35 34 33
32 TEZI
31
TEI
D/A
30
SBAD
29
FEI
A/D
28 RFRP
27
RFZI
26
RFCT
25
AV
24
RFI
Data
slicer
23
SLCO
22
AV
VCO
21
VCOF
20
RV
19
LPFO
PLL
TMAX
18
LPFN
17
TMAX
13 14 15 16
DD3
SS3
REF