Ic Pin Function Description - Sony MDX-CA790X Service Manual

MDX-CA790X

5-16. IC PIN FUNCTION DESCRIPTION

• SERVO BOARD IC1 CXA2523AR (RF AMP, FOCUS/TRACKING ERROR AMP)
Pin No. Pin Name I/O
1 I I I-V converted RF signal I input from the optical pick-up block detector
2 J I
I-V converted RF signal J input from the optical pick-up block detector
3 VC O Middle point voltage (+1.65V) generation output terminal
4 to 9 A to F I Signal input from the optical pick-up detector
10 PD I
Light amount monitor input from the optical pick-up block laser diode
11 APC O Laser amplifier output terminal to the automatic power control circuit
12 APCREF I Reference voltage input terminal for setting laser power
13 GND —
Ground terminal
14 TEMPI I Connected to the temperature sensor Not used
TEMPR O
15 Output terminal for a temperature sensor reference voltage Not used
16 SWDT I Writing serial data input from the MD DSP
17 SCLK I Serial data transfer clock signal input from the MD DSP
18 XLAT I
Serial data latch pulse signal input from the MD DSP
19 XSTBY I Standby signal input terminal "L": standby (fixed at "H" in this set)
Center frequency control voltage input terminal of internal circuit (BPF22, BPF3T, EQ) input
20 F0CNT I
terminal
21 VREF O Reference voltage output terminal Not used
22 EQADJ I Center frequency setting terminal for the internal circuit (EQ)
23 3TADJ I
Center frequency setting terminal for the internal circuit (BPF3T)
24 VCC — Power supply terminal (+3.3V)
25 WBLADJ I
Center frequency setting terminal for the internal circuit (BPF22)
26 TE O Tracking error signal output terminal
27 CSLED I Connected to the external capacitor for low-pass filter of the sled error signal
28 SE O
Sled error signal output terminal
29 ADFM O FM signal output of the ADIP
30 ADIN I Receives a ADIP FM signal in AC coupling
31 ADAGC I
Connected to the external capacitor for ADIP AGC
32 ADFG O ADIP duplex signal (22.05 kHz ± 1 kHz) output terminal
33 AUX O
Auxiliary signal (I
34 FE O Focus error signal output terminal
35 ABCD O Light amount signal (ABCD) output terminal
36 BOTM O
Light amount signal (RF/ABCD) bottom hold output terminal
37 PEAK O Light amount signal (RF/ABCD) peak hold output terminal
38 RF O Playback EFM RF signal output terminal
39 RFAGC I
Connected to the external capacitor for RF auto gain control circuit
40 AGCI I Receives a RF signal in AC coupling
41 COMPO O
User comparator output terminal Not used
42 COMPP I User comparator input terminal Not used
43 ADDC I Connected to the external capacitor for cutting the low band of the ADIP amplifier
44 OPO O
User operational amplifier output terminal Not used
45 OPN I User operational amplifier inversion input terminal Not used
46 RFO O RF signal output
47 MORFI I
Receives a MO RF signal in AC coupling
48 MORFO O MO RF signal output
Description
signal/temperature signal) output terminal
3
• SERVO BOARD IC4 CXD2667R (MD DSP)
Pin No. Pin Name I/O
1 GFS/SLD O GFS output or sled servo drive signal output terminal Not used
2 VDIO3 — Power supply terminal (+3.3V)
3 VSIO3 — Ground terminal
4 VDC0 — Power supply terminal (+2.5V)
5 MNT0 I/O Busy monitor signal input or output terminal Not used
6 MNT1 O Busy monitor signal output terminal Not used
7 MNT2 O Busy monitor signal output to the MD mechanism controller (reserve terminal)
8 MNT3 O Busy monitor signal output terminal Not used
9 SWDT I Writing serial data input from the MD mechanism controller
10 SCLK I Serial data transfer clock signal input from the MD mechanism controller
11 XLAT I Serial data latch pulse input from the MD mechanism controller
12 VSC0 — Ground terminal
13 SRDT O Reading serial data output to the MD mechanism controller
14 SENS O Internal status (SENSE) output to the MD mechanism controller
15 XRST I System reset signal input from the MD mechanism controller "L": reset
Subcode Q sync (SCOR) output to the MD mechanism controller
16 SQSY O
"L" is output every 13.3 msec Almost all, "H" is output
Frequency setting terminal for the system clock
17 XTSL I
"L": 45.1584 MHz, "H": 22.5792 MHz (fixed at "H" in this set)
18 DATAI I Digital audio signal input terminal when recording mode Not used
19 VDIOSC O Power supply terminal (+3.3V)
20 OSCI I System clock input terminal (22.57 MHz)
21 OSCO O System clock output terminal (22.57 MHz)
22 VSIOSC — Ground terminal
23 DAVSSL — Ground terminal
24 VREFL O Capacitor connecting terminal for reference voltage of internal D/A converter
25 AOUTL O L-ch analog audio signal output terminal
26 DAVDDL — Power supply terminal (+3.3V)
27 DAVDDR — Power supply terminal (+3.3V)
28 AOUTR O R-ch analog audio signal output terminal
29 VREFR O Capacitor connecting terminal for reference voltage of internal D/A converter
30 DAVSSR — Ground terminal
31 VSC1 — Ground terminal
32 VDC1 — Power supply terminal (+2.5V)
33 MTFLGL O L-ch zero-data or L-ch + R-ch zero-data detection flag output terminal Not used
34 DOUT O Digital audio signal output terminal when playback mode Not used
35 XINT O Interrupt request signal output to the MD mechanism controller
36 DADT O Playback data output to the D/A converter Not used
37 LRCK O L/R sampling clock signal (44.1 kHz) output to the D/A converter Not used
38 XBCK O Bit clock signal (2.8224 MHz) output to the D/A converter Not used
39 FS256 O 256Fs = 11.2896 MHz clock signal output terminal Not used
40 VDIO1 — Power supply terminal (+3.3V)
41 to 44 A03 to A00 O Address signal output terminal Not used
45 A10 O Address signal output terminal Not used
46 to 50 A04 to A08 O Address signal output terminal Not used
34 34
Description