SONY CDXC4840R Repair Manual

SECTION 4
DIAGRAMS
4-1. IC PIN DESCRIPTION
Y IC801 MB90574APMT-G-199-BND (SYSTEM CONTROL)
Pin No.Pin NameI/OPin Description
1LD ONOLaser ON/OFF control output
2FOKIFocus OK signal detection input
3XLAT25OCD signal processing latch output
4DATA25OCD signal serial data output
5XRSTOReset output to CD signal processor IC.
6GFSIGFS signal detection input
7NILNNot used. (Connect to ground in this set.)
8VCCNPower supply pin (+5 V)
9 � 11NILNNot used. (Open)
12FLS SI/NOSE1IFront panel attachment detection input
13LCD SO/FLS SOOLCD serial data output
14LCD CKOOLCD serial clock output
15BEEPOBEEP output
16NILNNot used. (Open)
17SQ SIISub Q data input
18NILNNot used. (Connect to ground in this set.)
19SQ CKOOSub Q read clock output
20UNI SIIBUS system serial interface input
21UNI SOOBUS system serial interface output
22UNI CKI/OBUS system serial clock input/output
23C INITrack jump No. count input
24SIRCSIRemote commander input
25TXT SIICD-TEXT data input
26NILNNot used. (Connect to ground in this set.)
27TXT CKOOCD-TEXT data read clock output
28CLOK25OCD signal processing serial clock output
29SYSRSTOSystem reset output
30DEEMPHODe-emphasis output
31AMP ATTOPower amplifier attenuator control output
32MD ONOCD mechanism power control output
33VSSNGround
34CNPower stabilization capacitor pin
35CD ONOCD power control output
36BUS ONOBUS ON control output
37NILOPower control output of A/D conversion.
38DVCCNVREF input of D/A converter.
39DVSSNGround of D/A converter.
40NILNNot used. (Open)
41ANGLEOLCD view angle alignment output (Not used in this set.)
42AVCCNAnalog power supply pin (+5 V)
43AVRHNVREF + input of A/D converter.
44AVRLNVREF � input of A/D converter.
45AVSSNAnalog ground
46 � 48KEY IN0 � 2IKey input 0 � 2
49RC IN0IRotary commander input 0
50QUALITYINoise detection input
51NILNNot used. (Connect to ground in this set.)
52MPDHITuner multi path input
53S-METERIS-meter voltage detection input
54VCCNPower supply pin (+5 V)
55NS MASKONoise detection output
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