Sony MDS-JB920 service manual IC121 CXD2654R, IC152 BH6511FS-E2

Page 55

IC121

CXD2654R

EFMO

DVSS

TEST3

TEST2

TEST1

FGIN

SPFD

SPRD

SFDR

SRDR

FS4

FRDR

FFDR

DVDD

TFDR

TRDR

LDDR

APCREF

DTRF

CKRF

XLRF

F0CNT

ADFG

APC

DCHG

100

99

98

97

96

95

94

93

92

91

90

89

88

87

86

85

84

83

82

81

80

79

78

77

76

SPINDLE

PWM

AUTO SEQUENCER

MNT0

1

SERVO

GENERATOR

75 TE

74 SE

MNT1

2

MONITOR

EACH

73

AVSS

MNT2

3

CONTROL

BLOCK

MNT3

4

ADIP

72

ADRB

71

ADRT

DECODER

70

AVDD

SWDT

5

69

ADIO

SCLK

6

XLAT

7

CPU I/F

EACH

68

VC

SRDT

8

BLOCK

SERVO

A/D

67

AUX1

DSP

CONVERTER

SENS

9

ANALOG

66 FE

XRST

10

MUX

65

ABCD

64

BOTM

SQSY

11

SUBCODE

63

PEAK

DQSY

12

PROCESSOR

RECP

13

62

CLTV

61

FILO

PLL

60

FILI

EFM/ACIRC ENCODER/ DECODER

59

PCO

XINT

14

SHOCK RESISTANT

MEMORY CONTROLLER

TX

15

58

AVSS

OSCI

16

CLOCK

EACH

OSCO

17

GENERATOR

BLOCK

XTSL

18

57

RFI

DIGITAL

SAMPLING

COMP

DIN0

19

56

BIAS

AUDIO

RATE

DIN1

20

55

AVDD

I/F

CONVERTER

54

ASYI

DOUT

21

53

ASYO

DATAI	22	ATRAC
LRCKI	23	ENCODER/DECODER
XBCKI	24
ADDT	25	52 MVCI

													ADDRESS/DATA BUS A00 - A11, D0 - D3														51	D3
	26	27	28	29	30			31	32	33	34	35	36	37	38	39	40	41	42	43	44	45	46	47	48	49	50
	DADT	LRCK	XBCK	FS256	DVDD			A03	A02	A01	A00	A10	A04	A05	A06	A07	A08	A11	DVSS	XOE	XCAS	A09	XRAS	XWE	D1	D0	D2
IC152 BH6511FS-E2
CAPA–	CAPA+		IN2R		IN2F	VM2	OUT2F		PGND2		OUT2R		VM12		OUT1R		PGND1		OUT1F		VM1		IN1F		IN1R		VDD
32	31		30		29	28	27		26		25		24		23		22		21		20		19		18		17
			INTERFACE				AMP				AMP				AMP					AMP			INTERFACE				VDD
CHARGE					PREDRIVE																PREDRIVE
PUMP.
	OSC
					PREDRIVE																PREDRIVE
			INTERFACE				AMP				AMP				AMP					AMP			INTERFACE				PSB
1	2		3		4	5	6		7		8		9		10		11		12		13		14		15		16
GND	VG		IN4R		IN4F	VM4	OUT4F		PGND4		OUT4R		VM34		OUT3R		PGND3		OUT3F		VM3		IN3F		IN3R		PSB
																				– 71 –

Image 55

Contents MDS-JE520 SpecificationsMDM-5A General SELF-DIAGNOSIS FunctionItems of Error History Mode Items and Contents Diagrams Table of ContentsSection Servicing Notes Varning Flexible Circuit Board RepairingVaroitus IOP JIG for Checking BD Board WaveformRecord Precedure Forced Reset Checks Prior to Parts Replacement and AdjustmentsREC/PLAY Precedure Retry Cause Display ModeHexadecimal nBinary Conversion Table Location of Controls Section GeneralFront view Rear view Page Page Case Section DisassemblyMain Board Front Panel SecitonSlider CAM Mechanism Section MDM-5ASW BOARD, Loading Motor M103 Base Unit MBU-5A, BD BoardExiting the Test Mode Section Test ModePrecautions for USE of Test Mode Setting the Test ModeDisplay Contents Mark Group Selecting the Test ModeNon-Volatile Memory Mode EEP Mode Operating the Continuous Playback ModeMID Detrack check display Not used in servicing Test Mode DisplaysFunctions of Other Buttons Auto gain display Not used in servicingMeanings of Other Displays Display Contents When Lit When OffParts Replacement and Adjustment Section Electrical AdjustmentsLaser power meter Precautions for Checking Laser Diode EmissinonPrecautions for USE of Optical PICK-UP KMS-260A Precautions for AdjustmentsTraverse Check Temperature Compensation Offset CheckLaser Power Check Check Prior to RepairsSelf-Recording/playback Check Play Checking MO Error Rate CheckCD Error Rate Check Focus Bias CheckRecording and Displaying the IOP Information Initial Setting of Adjustment ValueTemperature Compensation Offset Adjutment Laser Power AdjustmentTraverse Adjustment Focus Bias Adjustment MO Auto Gain Control Output Level Adjustment Error Rate CheckAuto Gain Control Output Level Adjustment CD Auto Gain Control Output Level AdjustmentAdjusting Points and Connecting Points BD Board IC101 CXA2523AR RF AMP, FOCUS/TRACKING Error AMP Section DiagramsIC PIN Function Description Sqsy SrdtSens XrstAsyo XrasXWE MvciSpfd SrdrSfdr SprdMain Board IC100 CXD8607N A/D Converter Lvdd AvddlVDD1 TEST2Main Board IC800 M30610MCA-264FP System Controller MDS-JB920 REC Digital Block Diagram Servo Section∙ Signal Path REC Analog∙ Signal Path Play Analog OUT Block Diagram Main SectionPlay Digital OUT Circuit Boards Location Printed Wiring Boards BD Section MDS-JB920 53 for Waveforms. See page 70 and 71 for IC Block Diagrams Schematic Diagram BD /2 SeeWaveforms BD board Main board Disp board MDS-JB920 MDS-JB920 MDS-JB920 MDS-JB920 Other layers pattern Side a US, CND Schematic Diagram Panel Section See page 54 for Waveforms CXA2523AR Schematic Diagram BD Switch SectionPrinted Wiring Board BD Switch Section IC Block Diagrams BD Board IC101IC152 BH6511FS-E2 IC121 CXD2654RCXA8042AS Main Board IC100 CXD8607NIC101 CXA8054M IC203IC200 CXD8767N SN74HCU04ANS-E20 SN74HC153ANSChassis Section Section Exploded ViewsSupplied with RV760 Front Panel Section204 205 206 201209 4-988-466-21 Spring ELECTROSTATIC, Leaf Base Unit Section MBU-5A Section Electrical Parts List CXA2523AR TANTAL. ChipDiode Diode F1J6TPDisp Main C252 Mylar SN74HC153ANS HZS6C1LHZ7.5CP-TK CXA8042AS390 LED SEL6810A-TH10 Mega Control Transistor Main PSWCoil with Core Vibrator LED SEL6210S-TH10 StandbySW VOL Sony Corporation