Cd Mechanism Μ-Com : Ic2 On X32- (Cd Player Unit) - Kenwood KDC-3028 Service Manual

KDC-3028/328
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MICROCOMPUTER'S TERMINAL DESCRIPTION
3 7 63 1515 0
CD MECHANISM µ-COM : IC2 on X32- (CD PLAYER UNIT)
Pin No. Pin Name
1 TVD
2 SPL
3 NC
4 PWM
5 TBAL
6 FBAL
7 NRFDET
8 OFT
9 BDO
10 LDON
11 DSLB
12 DVDD1
13 DVSS1
14 AVSS2
15 DSLF
16 ARF
TE
17 RFSW
L 13942296513
18 PLLF
19 PLLF2
20 IREF
21 RFENV
22 TRCRS
23 TE
24 FE
25 AVDD2
26 AVSS1
27 OUTR
28 AVDD1
29 OUTL
30 DVSS3
31 CSEL
32 NC
33 ASEL
34 MSEL0
35 MSEL1
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36~39 NC
40 VREFP
.
41 HOT
8
I/O Application
O Traverse drive output (PWM output).
O Spindle motor drive output (PWM output).
- No connection.
O Multipurpose PWM output.
O Tracking balance adjustment output (PWM output).
O Focusing balance adjustment output (PWM output).
I RF detection signal input.
I Off-tracking signal input.
I Drop-out signal input.
O Laser-on signal output.
O DSL balance output.
- Power supply for digital circuit.
- GND for digital circuit.
- GND for analog circuit.
I/O Loup filter for DSL and bias output for ARF.
I RF signal input.
I DSL circuit time constant switch.
I/O Loup filter for PLL.
I/O Loup filter character switch for PLL.
I Reference current input.
I RF envelope signal input.
I Tracking cross signal input.
I Tracking error signal input.
I Focusing error signal input.
- Power supply for analog circuit.
- GND for analog circuit.
O Rch audio output.
- Power supply for analog circuit.
O Lch audio output.
- GND for digital circuit.
-
- No connection.
-
-
-
- No connection.
x ao
y
- Reference power supply input for A/D converter.
i
-
8
L : Detection
H : Detection
H : Detection
H : Focus ON
For DSL, PLL and A/D converter
Q Q
3 6 7 1 3
For DSL, PLL and A/D converter
For Lch/Rch audio output
For Lch/Rch audio output
u163
.
2 9 9 4 2 8
Processing Operation
1 5 0 5 8 2 9 9 4
m
co
9 9
2 8 9 9