Panasonic DVD-K29GCS specifications Servo Block Diagram, Optical Pick UP Unit

Page 37

13.3. SERVO BLOCK DIAGRAM

DVD-K29GCS

RF SIGNAL

MOTOR DRIVE SIGNAL

TRACKING ERROR SIGNAL

FOCUS ERROR SIGNAL

IC8251

IC8001 (DV2)

VIN9

(MOTOR DRIVE)

VO2+ 12

OPTICAL PICK UP UNIT

PHOTO DETECTOR
B1	B2
A1	A2
A4	A3	HEAD
B4	B3	AMP
		LASER DIODE(DVD)
		LASER DIODE(CD)

	130
VIN10	129	75	TRSDRV
		75
VIN5	134
VIN6	133	147	TRDRV
		147
VIN7	132
VIN8	131	148	FODRV
		148
VIN1	138
VIN2	137	76	SPDRV
		76
VIN3	136
VIN4	135	140	AD1
		140

Q8551, Q8552
LD DRIVE	LPC01 124

FROM

LPC1 123

IC6001-16,17PIN

6 VIN2

-

BIAS1+

22VIN4

23VIN5

5 VIN1

-

+

27OPOUT

7 VIN3

-

+

+

-

LEVEL SHIFT

LEVEL SHIFT

LEVEL SHIFT

-

+

-

+

-

+

-

+

-

+

-

+

TRAVERS MOTOR

VO2- 11

OPIN+ 25

VO1+ 14

SPINDLE MOTOR

VO1- 13

OPIN- 26

VO3+ 10

M2601

LOADING MOTOR

VO3- 9

Q8561, Q8562
LD DRIVE	LPC02 126

LPC2 125

79

RFINN 110

MUTE1

BIAS2

	3	CH1
	3	MUTE
		MUTE

-

+

OPTICAL PICK UP UNIT

	IC8251-15,16,17,18
	4Vp-p(0.5msec./div.)	ACTUATOR
		ACTUATOR
		TRACKING
VO4+ 17	ACT T+	COIL
VO4+ 17	ACT T+

RFINP

83

MUTE2

	4	CH2,4,5
	4	MUTE
		MUTE

LEVEL SHIFT

VO4- 18

ACT T-

111

-

+

-

+

LEVEL SHIFT

-

+

-

+

-

+

CH3

MUTE

			FOCUS
VO5+	15	ACT F+	COIL
VO5+	15	ACT F+
VO5-	16	ACT F-

IC6001

(OPERATION CPU)

MUTE3 1

TRAY MUTE 18

CLOSE SW

TRAY CLOSE

S2601

OPEN SW

TRAY OPEN

S2602

25

24

DVD-K29GCS

SERVO BLOCK DIAGRAM

37

Image 37

Contents DVD-K29GCS SpecificationsContents Interconnection Schematic Diagram & Schematic General Guidelines Safety PrecautionsPrecaution of Laser Diode About lead free solder PbF Prevention of Static Electricity Discharge Handling Precautions for Traverse Unit Optical PickupGrounding for electrostatic breakdown prevention Disassembling the Casing and Checking P.C.B.S Disassembly Procedure Casing Parts and P.C.B. PositionsMic P.C.B. and Operation P.C.B Top PanelFront Panel Module P.C.B Rear Panel Mother P.C.B. and Power SW P.C.BMechanism Unit Service Position Assembling and Disassembling the Mechanism Unit Disassembly ProcedureTraverse Unit Assembling the tray unit TrayLoading section Loading motor P.C.B Optical Pickup Unit Procedure for Disassembling the Optical Pickup Unit Assembling the optical pickup unit Traverse MotorDVD-K29GCS Optical Pickup Breakdown Diagnosis Self-Diagnosis Function and Service ModesDVD Self Diagnostic Function-Error Code Service Mode TableDET Last Error Code saved during no PlayService mode table DVD-K29GCS Handling After Completing Repairs Sales demonstration lock functionFirmware version-up of the DVD player Recovery after the dvd player is repairedService Tools and Equipment Adjustment ProceduresImportant points in adjustment Storing and Handling Test DiscsOptical pickup tilt adjustment Optical adjustmentProcedure for screw lock Abbreviations Serial Data Input Mother P.C.B Voltage ChartModule P.C.B MIC P.C.B DVD-K29GCS Overall Block Diagram Block DiagramPrimary Circuit Secondary Circuit Power Supply Block DiagramOptical Pick UP Unit Servo Block DiagramOptical PICK-UP Unit Video Block DiagramVideo Main Signal Audio Main Signal Audio Block DiagramInterconnection Schematic Diagram Interconnection Schematic Diagram & Schematic Diagram NotesImportant safety notice Schematic Diagram NotesPower Supply Section Mother P.C.B /2 Schematic Diagram Schematic DiagramQ6085 P16 P15 P14 P13 P12 P11 P10 B1ABGC000011 Front & AV OUT Section Mother P.C.B /2 Schematic DiagramIC4301 C0ABBB000118 Mother P.C.B.2/2 XP0621400L Module Schematic DiagramRFKVDS39BKIT Module Audio Main Signal MIC Schematic DiagramMother P.C.B Print Circuit BoardMother P.C.B Mother P.C.B. & Module P.C.B. Address InformationModule P.C.B /2 Component Side Module P.C.B /2 Foil Side Operation P.C.B Operation P.C.B. & MIC P.C.BDVD-K29GCS Casing Parts & Mechanism Section Exploded View Exploded ViewsMechanism Section Exploded View Packing & Accessories Section Exploded View ECA2WHG100 Replacement Parts ListECQV1H684JL ECJ3YB1A106K ERJ2GEJ101 ERJ3GEYJ272