Sony AM-NX9, Руководство по обслуживанию

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45
AM-NX9
• IC801 CXD2680-207GA (SYSTEM CONTROLLER, DIGITAL SIGNAL PROCESSOR, 16M BIT D-RAM)
Pin No.
Pin Name
I/O Description
1 OSCI I Resonator connection terminal for the system clock (22.5792MHz)
2 OSCO O Resonator connection terminal for the system clock (22.5792MHz)
3 VREFL O Reference voltage terminal connected to the capacitor (for the built-in D/A converter L-CH)
4 AOUTL O Built-in D/A converter L-CH signal output
5 AOUTR O Built-in D/A converter R-CH signal output
6 VREFR O Reference voltage terminal connected to the capacitor (for the built-in D/A converter R-CH)
7 ASYO O Playback EFM duplex signal output
8 ASYI I Playback EFM comparator slice level input
9 BIAS I Bias current input terminal for the playback EFM comparator
10 RFI I Playback EFM RF signal input from the RF amplifier
11 PCO O Phase comparison output terminal for the playback EFM system master PLL
12 FILI I Filter input terminal for the playback EFM system master PLL
13 FILO O Filter output terminal for the playback EFM system master PLL
14 CLTV I Internal VCO control voltage input terminal for the playback EFM system master PLL
15 PEAK I Peak hold signal input of the light amount signal (RF/ABCD) from the RF amplifier
16 BOTM I Bottom hold signal input of the light amount signal (RF/ABCD) from the RF amplifier
17 ABCD I Light amount signal (ABCD) input from the RF amplifier
18 FE I Focus error signal input from the RF amplifier
19 VC I Middle point voltage input from the RF amplifier
20 ADIO O Monitor output terminal of A/D converter input signal Not used
21 ADRB I The lower limit voltage of A/D converter input terminal (connected to the ground)
22 SE I Sled error signal input from the RF amplifier
23 TE I Tracking error signal input from the RF amplifier
24 AUX1 I Auxiliary A/D input (fixed at “H” in this set)
25 ADRT I The upper limit voltage of A/D converter input terminal (fixed at “H” in this set)
26 DCHG I Connecting terminal with the analog power supply of low impedance (fixed at “H” in this set)
27 APC I Error signal input for the laser automatic power control (fixed at “H” in this set)
28 ADFG I ADIP duplex FM signal (22.05 ± 1kHz) input from the RF amplifier
29 APCREF O Reference PWM signal output for the laser automatic power control to the RF amplifier
30 TRDR O Tracking servo drive PWM signal output (–) to the coil driver
31 TFDR O Tracking servo drive PWM signal output (+) to the coil driver
32 FFDR O Focus servo drive PWM signal output (+) to the coil driver
33 FRDR O Focus servo drive PWM signal output (–) to the coil driver
34 FS4 O 176.4kHz clock signal output
35 SFDR O Sled servo drive PWM signal output to the motor driver
36 SPRD O Spindle motor drive control signal output (U) to the motor driver
37 SPFD O Spindle servo drive PWM signal output to the motor driver
38 SPDV O Spindle motor drive control signal output (V) to the motor driver
39 SPDW O Spindle motor drive control signal output (W) to the motor driver
40 SPCU I Spindle motor drive comparison signal input (U) from the motor driver
41 SPCV I Spindle motor drive comparison signal input (V) from the motor driver
42 SPCW I Spindle motor drive comparison signal input (W) from the motor driver
43 SLDV O Sled motor drive control signal output (V) to the motor driver
44 SLDW O Sled motor drive control signal output (W) to the motor driver
45 SLCU I Sled motor drive comparison signal input (U) from the motor driver