Sony CDX-F5500M, Руководство по обслуживанию

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13
CDX-F5500M
SECTION 3
DIAGRAMS
3-1. IC PIN DESCRIPTIONS
• IC3 CXD3059BR (DIGITAL SERVO/DIGITAL SIGNAL PROCESSOR) (SERVO BOARD (1/2))
Pin No. Pin Name I/O Pin Description
1 MIRR I/O Mirror signal input/output (Not used in this set)
2 DFCT I/O Defect signal input/output (Not used in this set)
3 FOK I/O Focus OK signal input/output
4 VSS — Ground
5 LOCK I/O Lock signal input/output (Not used in this set)
6 MDP O Spindle motor servo control signal output
7 SSTP I Disc most inner detection signal input (Fixed at L in this set)
8 IOVSS1 — Digital ground
9 SFDR O Sled drive signal output (FWD direction)
10 SRDR O Sled drive signal output (REV direction)
11 TFDR O Tracking drive signal output (FWD direction)
12 TRDR O Tracking drive signal output (REV direction)
13 FFDR O Focus drive signal output (FWD direction)
14 FRDR O Focus drive signal output (REV direction)
15 IOVDD1 — Digital power supply pin (+3.3 V)
16 AVDD0 — Analog power supply pin (+3.2 V)
17 AVSS0 — Analog ground
18 NC — Not used. (Open)
19 E I E signal input
20 F I F signal input
21 TEI I Tracking error signal input
22 TEO O Tracking error signal output
23 FEI I Focus error signal input
24 FEO O Focus error signal output
25 VC I/O VC voltage output/Center voltage input
26 A I A signal input
27 B I B signal input
28 C I C signal input
29 D I D signal input
30 NC — Not used. (Open)
31 AVDD4 — Analog power supply pin (+3.2 V)
32 RFDCO I/O RFDC signal input/output (Not used in this set)
33 PDSENS I Reference voltage input (Fixed at L in this set)
34 AC_SUM O RFAC summing amplifier signal output
35 EQ_IN I Equalizer circuit signal input
36 LD O APC amplifier signal output
37 PD I APC amplifier signal input
38 NC — Not used. (Open)
39 RFC I EQ cut off frequency adjustment input
40 AVSS4 — Analog ground
41 RFACO O RFAC signal output
42 RFACI I RFAC signal input
43 AVDD3 — Analog power supply pin (+3.2 V)
44 BIAS I Asymmetry circuit constant current input
45 ASYI I Asymmetry comparate voltage input
46 ASYO O EFM full swing signal output
47 VPCO O Charge pump output
48 VCTL I VCO2 control voltage input
49 AVSS3 — Analog ground
50 CLTV I VCO1 control voltage input
51 FILO O Filter signal output