Sony hcd-sd1 service manual Load

Page 37

Pin No.

Pin Name

I/O

Function

61

LOAD IN

O

Tray loading motor control signal, “L”:Loading

 

 

 

 

62

LOAD OUT

O

Tray loading motor control signal, “L”:When OPEN

 

 

 

 

63

BD.RESET

O

IC reset signal for CD control, “L”:RESET

 

 

 

 

64

LIGHT

O

BLUE LED control port of front panel, “L”:LED ON

 

 

 

 

65

SDATA

O

Serial data for SOUND PROCESSOR IC101 (M62428AFP)

 

 

 

 

66

SCLOCK

O

Serial clock for SOUND PROCESSOR IC101 (M62428AFP)

 

 

 

 

67

SLAT1

O

Chip select for SOUND PROCESSOR IC101 (M62428AFP)

 

 

 

 

68

MUTE1

O

Audio mute signal, “H”:Power amplifier ICs (IC801, IC851) MUTE

 

 

 

 

69

MUTE2

O

Audio mute signal, “L”:Line mute (Q141, Q241) MUTE

 

 

 

 

70

STANDBY LED

O

Signal controlling LED which lights when power is OFF, “L”:LED ON

 

 

 

 

71

VSS0

Ground potential of port

 

 

 

 

72

ON LED

O

Signal controlling LED which lights when power is ON, “L”:LED ON

 

 

 

 

73

TIMER LED

O

Signal controlling LED which lights in timer standby, “H”:LED ON

 

 

 

 

74

I

Not used

 

 

 

 

75

FL DISP SW

O

Power ON/OFF signal for FL display, “H”:FL display ON

 

 

 

 

76

SP RELAY SW

O

Speaker relay control signal, “L”:Speaker relay ON

 

 

 

 

77 to 80

I

Not used

 

 

 

 

81

ON/XSTBY

O

System power control signal, “H”:Standby relay ON

 

 

 

 

82

STEREO

I

Tuner stereo signal, “L”:Stereo

 

 

 

 

83

TUNED

I

Tuner selection OK signal, “L”:TUNED

 

 

 

 

84

ST IDATA

I

Serial input data for tuner

 

 

 

 

85

ST ODATA

O

Serial output data for tuner

 

 

 

 

86

ST.CLOCK

O

Serial clock for tuner

 

 

 

 

87

ST LATCH

O

Chip select for tuner

 

 

 

 

88

ST MUTE

O

Tuner mute output

 

 

 

 

89

ST POWER

O

Tuner power signal (Not used)

 

 

 

 

90

SIRCS

I

SIRCS code input signal (Remote control signal input)

 

 

 

 

91

PCL

I

32 KHz clock monitor out

 

 

 

32.768 kHz signal is output in the test mode (Refer to page 12.)

 

 

 

 

92, 93

I

Not used

 

 

 

 

94

DEST1

I

Destination differentiation signal (Fixed at “H”)

 

 

 

 

95

DEST2

I

Destination differentiation signal (Fixed at “L”)

 

 

 

 

96

I

Not used

 

 

 

 

97

HP MUTE

O

HP mute signal output

 

 

 

 

98

MD-MUTE

O

MD REC OUT control signal “L”:MD REC OUT MUTE (“L” only for MD function)

 

 

 

 

99

TC-MUTE

O

REC OUT control signal of TAPE

 

 

 

“L”:TAPE REC OUT MUTE (“L” only for TAPE function)

 

 

 

 

100

V/T

O

Function control signal “H”:TAPE, “L”:CS/BS

 

 

 

 

– 55 –

Image 37
Contents HCD-SD1 SpecificationsSpecification Label Flexible Circuit Board RepairingDisassembly Table of ContentsDiagrams Exploded ViewsAttaching the Glass Assembly Opening the Disc Tray When Power is OFFSection Servicing Note Move the SUB-TRANS board and Connector board Position for Servicing the CD Mechanism Deck Front Panel Location of Parts and Controls Section GeneralLoading Panel Section DisassemblyGlass Assy Main Board and Tuner Unit Front PanelBack Panel CD Mechanism DeckOptical PICK-UP Disc TableSled Servo Mode Section Service ModeInitializing Forced Reset Checking the Sub-ClockAging Mode Section Test ModeSequence of Aging Mode Focus Bias Adjustment Section Electrical AdjustmentsCD Section Curve CheckFocus/Tracking Gain Adjustment RV102, RV103 Balance 1 Track Jump Check Without remote commanderAdjustment Location Circuit Boards Location Section DiagramsHCD-SD1 Block Diagrams BD SectionDefb SW Mute Speaker Main SectionFor printed wiring boards For schematic diagramsWaveforms BD Section Indication of transistorSee page 22 for Waveforms See page 51 for IC Block Diagrams Schematic Diagram BD SectionSemiconductor Location Printed Wiring Board BD SectionSchematic Diagram Main 1/2 Section Schematic Diagram Main 2/2 Section Printed Wiring Board Main Section Printed Wiring Board SUB Section Schematic Diagram SUB SectionSchematic Diagram Panel Section Printed Wiring Board Panel Section Schematic Diagram AMP Section Semiconductor Printed Wiring Board AMP SectionSchematic Diagram Connector Section Loading Motor Schematic Diagram REG Section Printed Wiring Board REG Section BD section IC101 CXA1782BQ IC Block DiagramsIC102 BA6397FP IC103 CXD2507AQMain Section IC351 LB1641 IC104 PCM1710U-RIC791 P82B715TD.118 IC701 System Control ∝PD780018AYGF-015-3BA Main Board IC PIN FunctionsLoad Front Panel Section Section Exploded Views6465UK,HK Chassis Section217 Mechanism Deck Section CDM13B-5BD19254 252 251 256 257 258 Base Unit Section BU-5BD19Resistors AMP Section Electrical Parts ListCHEMI-CON ConnectorS292 CHEMI-CON Connector LoadingMain SOCKET, Connector NON-ZIF11P Main Panel Panel PANEL-SW REG REG SUB-TRANS Trans Miscellaneous HCD-SD1 Trans Volume