Ic Pin Function - Sony MZ-R5ST Service Manual

MZ-R5ST

6-17. IC PIN FUNCTION

• IC503 CXD2652AR (DIGITAL SERVO ENC/DEC, ATRAC)/MAIN BOARD
Pin No. Pin Name I/O
1 MNT0 O Traverse count signal output.
2 MNT1 O Track jump detection output.
3 MNT2 — Not used. (Open).
4 MNT3 — Not used. (Open).
5 SWDT I Write data signal input from system control (IC801).
6 SCLK I Serial clock signal input from system control (IC801).
7 XLAT I Serial latch signal input from system control (IC801).
8 SRDT O Read data signal output to system control (IC801).
9 SENS O Internal status (SENSE) signal output to system control (IC801).
10 XRST I Reset signal input from system control (IC801). L: reset.
Sub code Q sync (SCOR) signal output to system control (IC801).
11 SQSY O
"L" is output every 13.3 mseconds. "H" is output most of time.
Sub code Q sync (SCOR) of DIGITAL IN U-bit CD format signal output to system control (IC801).
12 DQSY O
"L" is output every 13.3 mseconds. "H" is output most of time. (Not used).
13 WRPWR I Laser power switch signal input from system control.
14 NC — Not used. (Open).
15 TX I Write data send timing input from system control.
16 OSC1 O Clock output (22.5 MHz).
17 OSC0 I Clock input (22.5 MHz).
18 XTSL — Not used. (Fixed to "H").
19 RVDD — Not used. (GND).
20 RVSS — GND.
21 DIN I Digital audio signal input terminal (for optical input).
22 DOUT O Digital audio signal output terminal (for optical input).
23 ADDT I Audio data signal input from A/D and D/A converter (IC303).
24 DADT O Monitor/decode audio data signal output to A/D and D/A converter (IC303).
25 ALRCK O L/R clock signal output to A/D and D/A converter (IC303).
26 ABCK O Bit clock signal output to A/D and D/A converter (IC303).
27 FS256 O 11.2896 MHz clock output (MCLK system).
28 DVDD — Digital power supply terminal (+2.8 V).
29 ~ 32 A00 ~ A03 O Address signal output to RAM (IC509).
33 NC — Not used. (Open).
34 ~ 38 A04 ~ A08 O Address signal output to RAM (IC509).
39 NC — Not used. (Open).
40 DVSS — GND.
41 XOE O Output enable control signal output to RAM (IC509).
42 XCAS O Column address strobe signal output to RAM (IC509).
43 A09 O Address signal output to RAM (IC509).
44 XRAS O Load address strobe signal output to RAM (IC509).
45 XWE O Read/write control signal output to RAM (IC509).
46 ~ 49 D0 ~ D3 I Data signal input from RAM (IC509).
50 MVCI — Not used. (GND).
51 ASYO O Playback EFM full swing output. L: Vss, H: VDD.
52 ASYI I Playback EFM asymmetry comparate voltage input.
53 AVDD — Analog power supply terminal (+2.8 V).
54 BIAS I Playback EFM asymmetry circuit constant current input.
55 RFI I Playback EFM RF signal input from RF amplifier (IC501).
Description
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Pin No. Pin Name I/O
56 AVSS — GND.
57 PDO — Not used. (Open).
58 PCO O Phase comparison output from master clock PLL of the decoder PLL.
59 FILI I Filter input to master clock PLL of the decoder PLL.
60 FILO O Filter output from master clock PLL of the decoder PLL.
61 CLTV I VCO control voltage input from master clock PLL of the decoder PLL.
62 PEAK I Optical light amount signal - peak hold signal input from RF amplifier (IC501).
63 BOTM I Optical light amount signal - bottom hold signal input from RF amplifier (IC501).
64 ABCD I Optical light amount signal input from RF amplifier (IC501).
65 FE I Focus error signal input from RF amplifier (IC501).
66 AUX 1 I Auxiliary signal input from RF amplifier (IC501).
67 VC I Center voltage input from RF amplifier (IC501).
68 ADIO — Not used. (Open).
69 AVDD — Analog power supply terminal (+2.8 V).
70 ADRT — Not used. (Connected to +2.8 V).
71 ADRB — Not used. (GND).
72 AVSS — GND.
73 SE I Sled error signal input from RF amplifier (IC501).
74 TE I Tracking error signal input from RF amplifier (IC501).
75 AUX 2 — Not used. (Connected to +2.8 V).
76 DCHG — Not used. (Connected to +2.8 V).
77 APC — Not used. (Connected to +2.8 V).
78 ADFG I ADIP duplexed FM signal input (22.05 kHz ±1 kHz) input from RF amplifier (IC501). (Schmitt input).
79 FO CONT O Focus control output to RF amplifier (IC501).
80 XLRF I Latch signal input RF amplifier (IC501).
81 CKRF O RFCK clock (7.35 kHz) signal output.
82 DTRF I Serial data input from microprocessor (IC801).
83 APCREF I Input terminal for setting the laser power.
84 LDDR — Not used. (Open).
85 TRDR O Tracking servo drive signal output (–).
86 TFDR O Tracking servo drive signal output (+).
87 DVDD — Digital power supply terminal (+2.8 V).
88 FFDR O Focus servo drive signal output (–).
89 FRDR O Focus servo drive signal output (+).
90 FS 4 O 176.4 kHz clock signal output (MCLK system).
91 SRDR O Sled servo drive signal output (–).
92 SFDR O Sled servo drive signal output (+).
93 SPRD O Spindle servo drive signal output (–).
94 SPFD O Spindle servo drive signal output (+).
95 FGIN I FG input terminal from spindle motor driver (IC701).
96 ~ 98 TEST 1 ~ 3 — Not used. (GND).
99 DVSS — GND.
100 EFMO O EFM signal output (for recording).
Description
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