Ic Pin Function Description - Sony MDS-EX77 Service Manual

6-7. IC PIN FUNCTION DESCRIPTION

BD BOARD IC101
Pin No. Pin Name I / O
1 I I
2 J I
3 VC O
4 to 9 A to F I
10 PD I
11 APC O
12 APCREF I
13 GND —
14 TEMPI I
TEMPR O
15
16 SWDT I
17 SCLK I
18 XLAT I
19 XSTBY I
20 F0CNT I
21 VREF O
22 EQADJ I
23 3TADJ I
24 VCC —
25 WBLADJ I
26 TE O
27 CSLED I
28 SE O
29 ADFM O
30 ADIN I
31 ADAGC I
32 ADFG O
33 AUX O
34 FE O
35 ABCD O
36 BOTM O
37 PEAK O
38 RF O
39 RFAGC I
40 AGCI I
41 COMPO O
42 COMPP I
43 ADDC I
44 OPO O
45 OPN I
46 RFO O
47 MORFI I
48 MORFO O
CXA2523R (RF AMPLIFIER)
I-V converted RF signal I input from the optical pick-up block detector
I-V converted RF signal J input from the optical pick-up block detector
Middle point voltage (+1.65V) generation output terminal
Signal input from the optical pick-up detector
Light amount monitor input terminal
Laser amplifier output terminal to the automatic power control circuit
Reference voltage input terminal for setting laser power
Ground terminal
Connected to the temperature sensor
Output terminal for a temperature sensor reference voltage
Writing serial data input from the CXD2650R (IC121)
Serial clock signal input from the CXD2650R (IC121)
Serial latch signal input from the CXD2650R (IC121)
Standby signal input terminal
Center frequency control voltage input terminal of internal circuit (BPF22, BPF3T, EQ) input from
the CXD2650R (IC121)
Reference voltage output terminal
Center frequency setting terminal for the internal circuit (EQ)
Center frequency setting terminal for the internal circuit (BPF3T)
Power supply terminal (+3.3V)
Center frequency setting terminal for the internal circuit (BPF22)
Tracking error signal output to the CXD2650R (IC121)
Connected to the external capacitor for low-pass filter of the sled error signal
Sled error signal output to the CXD2650R (IC121)
FM signal output of the ADIP
Receives a ADIP FM signal in AC coupling
Connected to the external capacitor for ADIP AGC
ADIP duplex signal (22.05 kHz ± 1 kHz) output to the CXD2650R (IC121)
Auxiliary signal (I signal/temperature signal) output to the CXD2650R (IC121)
3
Focus error signal output to the CXD2650R (IC121)
Light amount signal (ABCD) output to the CXD2650R (IC121)
Light amount signal (RF/ABCD) bottom hold output to the CXD2650R (IC121)
Light amount signal (RF/ABCD) peak hold output to the CXD2650R (IC121)
Playback EFM RF signal output to the CXD2650R (IC121)
Connected to the external capacitor for RF auto gain control circuit
Receives a RF signal in AC coupling
User comparator output terminal
User comparator input terminal
Connected to the external capacitor for cutting the low band of the ADIP amplifier
User operational amplifier output terminal
User operational amplifier inversion input terminal
RF signal output terminal
Receives a MO RF signal in AC coupling
MO RF signal output terminal
Function
"L": standby (fixed at "H" in this set)
Not used (open)
Not used (open)
Not used (fixed at "L")
Not used (open)
Not used (fixed at "L")
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