Sony MZ-R701 Instrukcja serwisowa - Strona 24

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Sony MZ-R701 Instrukcja serwisowa
MZ-R701/R701DPC

6-1. IC PIN DESCRIPTIONS

• IC501 SN761057ADBT (RF AMP, FOCUS/TRACKING ERROR AMP)
Pin No.
Pin Name
1
TE
2
REXT
3
WPP-LPF
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-I
19
PD-NI
20
PD-O
21
ADIP
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
OFC-2, 1
41
ABCD
42
FE
43
S-MON
44
ADIP-IN
24
SECTION 6

DIAGRAMS

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 (+1 V)
I
Signal (C) input from the optical pick-up detector
I
Signal (D) input from the optical pick-up detector
I
Signal (D) input from the optical pick-up detector (AC input)
I
I-V converted RF signal (IY) input from the optical pick-up detector
I
I-V converted RF signal (IX) input from the optical pick-up detector
I
I-V converted RF signal (JX) input from the optical pick-up detector
I
I-V converted RF signal (JY) input from the optical pick-up detector
I
Signal (A) input from the optical pick-up detector
I
Signal (A) input from the optical pick-up detector (AC input)
I
Signal (B) input from the optical pick-up 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 (invert input)
I
Light amount monitor input terminal (non-invert input)
O
Light amount monitor output terminal
O
ADIP duplex FM signal (22.05 kHz ± 1 kHz) output to the system controller (IC801)
—
Power supply terminal (+2.3 V) (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
O
controller (IC801)
Peak hold signal output of the light amount signal (RF/ABCD) to the system
O
controller (IC801)
—
Connect terminal to the external capacitor for the internal reference voltage
O
Middle point voltage (+1.2 V) 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) (+2.3 V)
—
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)
I
ADIP duplex FM signal (22.05 kHz ± 1 kHz) input terminal
Description