Read Sony CDX-R3000N Service Manual online
12
CDX-R3000N
SECTION 3
DIAGRAMS
3-1. IC PIN DESCRIPTIONS
• IC1 µPD63712GC-8EU-A (RF AMP, DIGITAL SERVO, DIGITAL SIGNAL PROCESSOR) (SERVO BOARD)
Pin No.
Pin Name
I/O
Pin Description
1
LD
O
Laser diode ON/OFF control signal output (L: laser OFF, H: laser ON)
2
PD
I
Dimmer monitor input from optical pick-up laser diode.
3
PN
I
Not used. (Fixed at L in this set)
4
AVDD
—
Analog power supply pin (+3.3 V)
5
DGND
—
Ground
6
RFOK
O
RFOK signal output to system control IC.
7
INTQ
O
CD text pack synchronization signal output to system control IC.
8
RST
I
CD reset signal input from system control IC.
9
A0
I
Command/parameter discrimination signal input from system control IC.
(L: command transmission, H: parameter transmission)
10
STB
I
Data strobe signal input from system control IC.
11
SCK
I
Serial clock input from system control IC.
12
SO
O
Serial data output to system control IC.
13
SI
I
Serial data input from system control IC.
14
DVDD
—
Power supply pin (+3.3 V)
15
DAVDD
—
D/A converter power supply (+) pin (+3.3 V)
16
ROUT
O
Analog audio signal output (R-ch)
17
DAGND
—
Ground
18
REGC
—
Capacitor connection pin for SCF regulator.
19
DAGND
—
Ground
20
LOUT
O
Analog audio signal output (L-ch)
21
DAVDD
—
D/A converter power supply (+) pin (+3.3 V)
22
XVDD
—
Power supply pin (+3.3 V)
23
XTAL
O
Main system clock output (16.9344 MHz)
24
XTAL
I
Main system clock input (16.9344 MHz)
25
XGND
—
Ground
26
DVDD
—
Power supply pin (+3.3 V)
27
C1D1/FZD
O
Not used. (Open)
28
C1D2/TZD
O
Not used. (Open)
29
C2D1/RMUTE
O
CD R-ch data zero detection signal output
30
C2D2/LMUTE
O
CD L-ch data zero detection signal output
31
C2D3/SHOCK/SBSY
O
Not used. (Open)
32
LOCK/FR
O
Not used. (Open)
33
WFCK/MIRR
O
Not used. (Open)
34
RFCK/HOLD
O
Not used. (Open)
35
PLCK
O
Not used. (Open)
36
C16M
O
Not used. (Open)
37
DGND
—
Ground
38
TX
O
Not used. (Open)
39
EMPH/RAMOVER
O
Not used. (Open)
40
FLAG
O
Not used. (Open)
41
DVDD
—
Power supply pin (+3.3 V)
42
LIMIT
I
Not used. (Fixed at L in this set)
43
XTALEN
I
Oscillation circuit ON/OFF control signal input (L: ON, H: OFF)
(Fixed at L in this set)
44
DGND
—
Ground
45
DIN
I
Not used. (Connect to DOUT in this set)
46
DOUT
O
Not used. (Connect to DIN in this set)
47
SCKIN
I
Not used. (Connect to SCKO in this set)
48
SCKO
O
Not used. (Connect to SCKIN in this set)
49
LRCKIN
I
Not used. (Connect to LRCK in this set)
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