Sony AM-NX1, Service Manual

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AM-NX1
• IC501 SN761058AZQLR (RF AMP, FOCUS/TRACKING ERROR AMP)
Pin No. Pin Name I/O Description
1 IX I I-V converted RF signal (IX) input from the optical pickup detector
2, 3 PS, EQ — Connected to the external capacitor for the RF and EQ
4 AGND — Ground terminal (analog system)
5, 6
OFC-C1,
OFC-C2
— Connect terminal to the external capacitor for the RF AC coupling
7 VREF10 O Reference voltage (+0.6V) output terminal
8 VC O Middle point voltage (+0.9V) generation output terminal
9 RFO O Playback EFM RF signal output to the system controller
10 VREF09 O Reference voltage (+0.9V) output terminal
11 AVCC2 — Power supply terminal (+2.1V) (analog system)
12 PD-NI I Light amount monitor input terminal (non-invert input)
13 PD-I I Reference PWM signal input for the laser automatic power control from the system controller
14 PD-O O Light amount monitor output terminal
15 D-C I Signal (D) input from the optical pickup detector (AC input)
16 A-C I Signal (A) input from the optical pickup detector (AC input)
17 AGND — Ground terminal (analog system)
18 SMON O Servo signal monitor output to the system controller
19 ADIP-IN I ADIP duplex FM signal (22.05kHz + 1kHz) input terminal
20, 21 AGND — Ground terminal (analog system)
22 WPP-LPF — Connect terminal to the external capacitor for the TPP/WPP low-pass filter
23 ADFG O ADIP duplex FM signal (22.05kHz + 1kHz) output to the system controller
24 CDN — Connect terminal to the external capacitor for the low-pass filter of CSL divider denominator
25 CCSL2 — Connect terminal to the external capacitor for the TPP/WPP low-pass filter
26 CLK I
System clock signal (256Fs=11.2896MHz) input from the system controller
27 CPGND — Ground terminal (charge pump)
28 CN — Connected to the external capacitor for the charge pump
29 DVCC — Power supply terminal (+2.2V) (digital system)
30 CP — Connected to the external capacitor for the charge pump
31 CPOUT O power supply voltage output termanal for the charge pump
32 SCK I SSB serial clock signal input from the system controller
33 SBUS I SSB serial data input/output with the system controller
34 VGIN I Analog switch and OP amplifier power supply voltage input terminal
35 RESET I Reset signal input from the system controller “L”: reset
36 DGND — Ground terminal (digital system)
37 EFMO O EFM signal output terminal Not used
38 CIG — Connect terminal to the external capacitor for the low-pass filter of NPP divider denominator
39 ASSY —
Asymmetry input terminal Not used
40 RFI I Playback EFM RF signal input terminal
41 ABCD O Light amount signal (ABCD) output to the system controller
42 FE O Focus error signal output to the system controller
43 TE O Tracking error signal output to the system controller
44 NPPO O NPP signal output terminal
45 OFTRK I/O Off track signal input terminal Not used
46 TON-C — Connect terminal to the external capacitor for TON hold
47 BOTM O Bottom hold signal output of the light amount signal (RF/ABCD) to the system controller
6-10. IC PIN FUNCTION DESCRIPTION