Sony MDX-C5970 Mvci, Asyo, Asyi, Avdd, Bias, Rfi, Avss, Fili, Filo, Cltv, Peak, AUX1, AUX2, Xlrf

Page 43

Pin No.

Pin Name

I/O

Function

 

 

 

 

 

 

 

46

D1

I/O

 

 

 

 

 

 

 

 

 

47

D0

I/O

Two-way data bus with the D-RAM (IC307)

 

 

 

 

 

 

 

48

D2

I/O

 

 

 

 

 

 

 

 

 

 

 

49

D3

I/O

 

 

 

 

 

 

 

 

50

MVCI

I

Digital in PLL oscillation input from the external VCO

Not used (fixed at “L”)

 

 

 

 

 

 

51

ASYO

O

Playback EFM full-swing output terminal

 

 

 

 

 

 

52

ASYI

I (A)

Playback EFM asymmetry comparator voltage input terminal

 

 

 

 

 

 

53

AVDD

Power supply terminal (+3.3V) (analog system)

 

 

 

 

 

 

54

BIAS

I (A)

Playback EFM asymmetry circuit constant current input terminal

 

 

 

 

55

RFI

I (A)

Playback EFM RF signal input from the CXA2523R (IC302)

 

 

 

 

 

 

56

AVSS

Ground terminal (analog system)

 

 

 

 

 

 

57

PDO

O (3)

Phase comparison output for clock playback analog PLL of the playback EFM Not used (open)

 

 

 

 

58

PCO

O (3)

Phase comparison output for master clock of the recording/playback EFM master PLL

 

 

 

 

59

FILI

I (A)

Filter input for master clock of the recording/playback master PLL

 

 

 

 

60

FILO

O (A)

Filter output for master clock of the recording/playback master PLL

 

 

 

 

61

CLTV

I (A)

Internal VCO control voltage input of the recording/playback master PLL

 

 

 

 

62

PEAK

I (A)

Light amount signal (RF/ABCD) peak hold input from the CXA2523R (IC302)

 

 

 

 

63

BOTM

I (A)

Light amount signal (RF/ABCD) bottom hold input from the CXA2523R (IC302)

 

 

 

 

64

ABCD

I (A)

Light amount signal (ABCD) input from the CXA2523R (IC302)

 

 

 

 

 

65

FE

I (A)

Focus error signal input from the CXA2523R (IC302)

 

 

 

 

 

66

AUX1

I (A)

Auxiliary signal (I3 signal/temperature signal) input terminal Not used (fixed at “H”)

 

 

 

 

67

VC

I (A)

Middle point voltage (+1.65V) input from the CXA2523R (IC302)

 

 

 

 

 

68

ADIO

O (A)

Monitor output of the A/D converter input signal

Not used (open)

 

 

 

 

 

 

69

AVDD

Power supply terminal (+3.3V) (analog system)

 

 

 

 

 

 

70

ADRT

I (A)

A/D converter operational range upper limit voltage input terminal (fixed at “H” in this set)

 

 

 

 

71

ADRB

I (A)

A/D converter operational range lower limit voltage input terminal (fixed at “L” in this set)

 

 

 

 

 

 

72

AVSS

Ground terminal (analog system)

 

 

 

 

 

 

 

73

SE

I (A)

Sled error signal input from the CXA2523R (IC302)

 

 

 

 

 

 

74

TE

I (A)

Tracking error signal input from the CXA2523R (IC302)

 

 

 

 

 

75

AUX2

I (A)

Auxiliary signal input terminal Light amount signal input from the CXA2523R (IC302)

 

 

 

 

 

 

76

DCHG

I (A)

Connected to the +3.3V power supply

 

 

 

 

 

 

 

77

APC

I (A)

Error signal input for the laser automatic power control

Not used (fixed at “L”)

 

 

 

 

78

ADFG

I

ADIP duplex FM signal (22.05 kHz ± 1 kHz) input from the CXA2523R (IC302)

 

 

 

 

 

79

F0CNT

O

Filter f0 control signal output terminal Not used (open)

 

 

 

 

 

80

XLRF

O

Serial data latch pulse signal output terminal Not used (open)

 

 

 

 

 

81

CKRF

O

Serial data transfer clock signal output terminal

Not used (open)

 

 

 

 

 

82

DTRF

O

Writing serial data output terminal Not used (open)

 

 

 

 

 

83

APCREF

O

Control signal output to the reference voltage generator circuit for the laser automatic power

control

 

 

 

 

 

 

 

 

 

 

 

 

84

LDDR

O

PWM signal output for the laser automatic power control

Not used (open)

 

 

 

 

85

TRDR

O

Tracking servo drive PWM signal (–) output to the BH6511FS (IC303)

 

 

 

 

86

TFDR

O

Tracking servo drive PWM signal (+) output to the BH6511FS (IC303)

 

 

 

 

 

 

87

DVDD

Power supply terminal (+3.3V) (digital system)

 

 

 

 

 

 

88

FFDR

O

Focus servo drive PWM signal (+) output to the BH6511FS (IC303)

89

FRDR

O

Focus servo drive PWM signal (–) output to the BH6511FS (IC303)

 

 

 

 

 

90

FS4

O

Clock signal (176.4 kHz) output terminal (X’tal system)

Not used (open)

 

 

 

 

91

SRDR

O

Sled servo drive PWM signal (–) output to the BH6511FS (IC303)

 

 

 

 

 

 

– 63 –

Image 43
Contents MDX-C5960R/C5970/C5970R SpecificationsOptical PICK-UP Flexible Board Flexible Circuit Board RepairingDiagrams Table of Contents GeneralSection General Page Page Page Page Page Mechanism Deck MG-164N-138 SUB PanelServo Board Main BOARD, Heat SinkFloat Block MD Cover ASS’YLever LE ASS’Y LO Motor ASS’Y Loading M903Chucking ARM ASS’Y Holder ASS’YSL Motor ASS’Y Sled M902, SP Motor ASS’Y Spindle M901 Optical PICK-UP KMS-241B/J1NPTuner Section FM Auto Scan/Stop Level AdjustmentFM Stereo Separation Adjustment MD SectionRDS S-Meter Adjustment MDX-C5960R/C5970R AM MW Auto Scan/Stop Level AdjustmentSignal Path Block Diagram Servo SectionBlock Diagram Tuner Section MD Play Block Diagram Main SectionBUS Audio Remote Block Diagram DISPLAY/KEY Control SectionILL Block Diagram BUS CONTROL/POWER Supply SectionBUS Audio MD Play Semiconductor Location Printed Wiring Board Servo BoardSee page 55 for Waveforms. See page 58 for IC Block Diagrams Schematic Diagram Servo Board 1/3MDX-C5960R/C5970/C5970R Schematic Diagram Servo Board 3/3 See page 55 for Waveforms Semiconductor Location Component Side Printed Wiring Board Main Board Component SideSemiconductor Location Conductor Side Printed Wiring Board Main Board Conductor SideMDX-C5960R/C5970/C5970R Schematic Diagram Main Board 2/4 MDX-C5960R/C5970/C5970R MDX-C5960R/C5970/C5970R Printed Wiring Board KEY Board Schematic Diagram KEY Board See page 56 for Waveforms Waveforms Servo Board Main Board KEY Board IC301 CXD2652AR IC Block Diagrams Servo Board IC101 PCM1718E/2KIC302 CXA2523R IC305 BA6287F IC303 BH6511FS-E2IC307 MN41V4400TT-08S IC102 SAA6588T-118 MDX-C5960R/C5970R IC250 NJM2360AM TE2 Main Board IC100IC600 BA8270F-E2 IC800 BA3918-V3 IC300 TDA7462D013TRIC PIN Function Description Avdd MvciAsyo AsyiTEST1 TEST2 SfdrSprd SpfdVCC XlatXstby VrefDfctsel ResetEject NCOEJT-KEY UnireqUnisi UnisoNOSE-SW PLL SIPLL SO PLL CKOKEY-IN2 AvrhAvrl KEY-IN1PLL CE KeyackSeekout SD-IN111 3294-572-A Main BOARD, Complete General Section5759 5558 Front Panel SectionLCD801 1-803-502-21 Display PANEL, Liquid Crystal Mechanism Deck MG-164N-138 159 161 152 157156 162 158Ceramic Chip ConnectorKEY Board CapacitorTransistor SoundMode ShiftMain BOARD, Complete Conposition Circuit BlockBuzzer BZ1 Elect Diode DTZ-TT11-16B Double LayerDiode RD12SB2 Diode UDZ-TE-17-6.8BFMC2 COIL, Choke 0.5ATransistor DTC314TKH04 DTC114EKRef. No Description Remark R56 216-025-00 Tuner TU1 SWITCH, Slide Frequency SelectVariable Resistor RV1 Thermistor TH600 1-801-792-21 THERMISTOR, PositiveTC7WU04FU TE12R CXD2652ARMotor ASSY, SL Sled RES, Chip NetworkRES, Chip Network 1K Optical PICK-UP KMS-241B/J1RP507 501502503 504 505 506