Kenwood CKDC 495 Service Manual

Page 7

CKDC-395/395A/495

MICROCOMPUTERS TERMINAL DESCRIPTION

0 CD MECHANISM p-COM :ICZ on X32- (CD PLAYER UNIT)

Active
Pin No. (H/L) Pin Name l/O Application Processing Operation
1 TVD O Traverse drive output (PWM output).
2 SPL O Spindle motor drive output (PWM output).
3 NC - No connection.
4 PWM O Multipurpose PWM output.
5 TBAL 0 Tracking balance adjustment output (PWM output).
6 FBAL O Focusing balance adjustment output (PWM output).
7 NRFDET | FF detection signal input. L : Detection
8 OFT | Off-tracking signal input. H : Detection
9 BBC | Drop-out signal input. H : Detection
1O LDON O Laser-on signal output. H : Focus ON
11 DSLB O DSL balance output.
12 DVDD1 - Power supply for digital circuit.
13 DVSS1 - GND lor digital circuit.
14 AVSS2 - GND lor analog circuit. For DSL, PLL and A/D converter
15 DSLF I/O Loup lilter for DSL and bias output for AFlF.
16 ARF | RF signal input.
17 RFSW | DSL circuit time constant switch.
18 PLLF I/O Loup lilter for PLL.
19 PLLF2 I/O Loup lilter character switch for PLL.
20 IREF | Reference current input.
21 RFENV | FF envelope signal input.
22 TFlCFtS | Tracking cross signal input.
23 TE | Tracking error signal input.
24 FE | Focusing error signal input.
25 AVDD2 - Power supply for analog circuit. For DSL, PLL and A/D converter
26 AVSS1 - GND tor analog circuit. For Lch/Rch audio output
27 OUTR O Rch audio output.
28 AVDD1 - Power supply for analog circuit. For Lch/Rch audio output
29 OUTL O Lch audio output.
30 DVSSS - GND for digital circuit.
31 CSEL -
32 NC - No connection.
33 ASEL -
34 MSELO -
35 MSEL1 -
36~39 NC - No connection.
40 VREFP - Reference power supply input for A/D converter.
41 HOT -