Ic Pin Function Description - Sony MZ-R909 Service Manual

MZ-R909

6-11. IC PIN FUNCTION DESCRIPTION

• IC501 SN761057DBT (RF AMP, FOCUS/TRACKING ERROR AMP)
Pin No. Pin Name
1 TE
2 REXT
3 WPPLPF
4 VREF
5 C
6 D
7 D-C
8 IY
9 IX
10 JX
11 JY
12 A
13 A-C
14 B
15 TON-C
16 CIG
17 CDN
18 PD-NI
19 PD-I
20 PD-O
21 ADFG
22 DVDD
23 SBUS
24 SCK
25 XRST
26 OFTRK
27 DGND
28 BOTM
29 PEAK
30 VREF075
31 VC
32 CCSL2
33 RF OUT
34 AGND
35 to 37 EQ, LP, PS
38 AVCC
39, 40 OFC2, OFC-1
41 ABCD
42 FE
43 S-MON
44 ADIP-IN
48
I/O
O Tracking error signal output to the system controller (IC801)
— Connect terminal to the external resistor for ADIP amp control
— Connect terminal to the external capacitor for TPP/WPP low-pass filter
O Reference voltage output terminal
I Signal (C) input from the optical pickup detector
I Signal (D) input from the optical pickup detector
I Signal (D) input from the optical pickup detector (AC input)
I I-V converted RF signal (IY) input from the optical pickup detector
I I-V converted RF signal (IX) input from the optical pickup detector
I I-V converted RF signal (JX) input from the optical pickup detector
I I-V converted RF signal (JY) input from the optical pickup detector
I Signal (A) input from the optical pickup detector
I Signal (A) input from the optical pickup detector (AC input)
I Signal (B) input from the optical pickup detector
— Connect terminal to the external capacitor for TON hold
Connect terminal to the external capacitor for the low-pass filter of NPP divider
—
denominator
Connect terminal to the external capacitor for the low-pass filter of CSL divider
—
denominator
I Light amount monitor input terminal (non-invert input)
Reference PWM signal input for the laser automatic power control from the system controller
I
(IC801)
O Light amount monitor output terminal
ADIP duplex FM signal (22.05kHz ± 1kHz) output to the system controller (IC801)
O
— Power supply terminal (+2.3V) (digital system)
I/O SSB serial data input/output with the system controller (IC801)
I SSB serial clock signal input from the system controller (IC801)
I Reset signal input from the system controller (IC801) "L": reset
I Off track signal input from the system controller (IC801)
— Ground terminal (digital system)
Bottom hold signal output of the light amount signal (RF/ABCD) to the system controller
O
(IC 801)
Peak hold signal output of the light amount signal (RF/ABCD) to the system controller
O
(IC 801)
— Connect terminal to the external capacitor for the internal reference voltage
O Middle point voltage (+1.2V) generation output terminal
— Connect terminal to the external capacitor for TPP/WPP low-pass filter
O Playback EFM RF signal output to the system controller (IC801)
— Ground terminal (analog system)
— Connect terminal to the external capacitor for the RF equalizer
— Power supply terminal (analog system)
— Connect terminal to the external capacitor for RF AC coupling
O Light amount signal (ABCD) output to the system controller (IC801)
O Focus error signal output to the system controller (IC801)
O Servo signal monitor output to the system controller (IC801)
ADIP duplex FM signal (22.05kHz ± 1kHz) input terminal (not used in this set)
I
Description