Sharp DV-RW370X Manuel de service

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1
DV-NC55U/C/M
S61U2DV-NC55U
SERVICE MANUAL
Page
1. IMPORTANT SERVICE NOTES........................................................................................................ 2
2. FEATURES ........................................................................................................................................ 4
3. SPECIFICATIONS ............................................................................................................................. 4
4. PART NAMES.................................................................................................................................... 6
5. MAINTENANCE CHECK ITEMS AND EXECUTION TIME ............................................................... 9
6. DISASSEMBLY METHOD ............................................................................................................... 10
7. OPERATION OF PICKUP ............................................................................................................... 14
8. ADJUSTMENT, REPLACEMENT AND ASSEMBLY OF MECHANICAL UNITS ............................ 15
9. TEST MODE .................................................................................................................................... 38
10. TROUBLESHOOTING ..................................................................................................................... 41
11. IC FUNCTION LIST ......................................................................................................................... 52
12. BLOCK DIAGRAMS ......................................................................................................................... 76
13. SCHEMATIC DIAGRAMS................................................................................................................ 84
14. PRINTED WIRING BOARD ASSEMBLIES ................................................................................... 102
15. REPLACEMENT PARTS LIST ...................................................................................................... 123
16. PACKING OF THE SET................................................................................................................. 142
CONTENTS
In the interests of user-safety (Required by safety regula-
tions in some countries) the set should be restored to its
original condition and only parts identical to those specified
be used.
MODELS
DV-NC55U
DV-NC55C
DV-NC55M
SERVICE MANUAL VCR/DVD COMBINATION MODEL
MODELS DV-NC55U/C/M
VCR/DVD COMBINATION MODEL
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
SHARP CORPORATION
REW PLAY
STANDBY
CH(
TRACKING
)
/
POWER
EJECT/ STOP
PLAY STOP
OPEN/
CLOSE
VCR DVD
(AV 1 )
L(MONO)-AUDIO-RAV 2 IN VDEO
QSURROUND
Vue de la page 0
1 2 3 4 5 6 ... 127 128

Résumé du contenu

Page 1 - SERVICE MANUAL

1DV-NC55U/C/MS61U2DV-NC55USERVICE MANUALPage1. IMPORTANT SERVICE NOTES...

Page 2 - 1. IMPORTANT SERVICE NOTES

10DV-NC55U/C/M6. DISASSEMBLY METHOD6-1. DISASSEMBLY METHOD1) Removing the cabinet.(1) Remove the five screws 1 and 2.2) Removing the front panel.(1) R

Page 3 - ATTENTION

112DV-NC55U/C/MABCDEFGHIJ12345678910INTERFACE PWBComponent Side SIDE AWiring Side SIDE A

Page 4 - 3. SPECIFICATIONS

113DV-NC55U/C/M10 11 12 13 14 15 16 17 18 19ABCDEFGHIJ12345678910Component Side SIDE BWiring Side SIDE B

Page 5 - 3-1. ACCESSORIES

1234567891011 12 13 14 15 16 17 18 19 20ABCDEFGHIJDV-NC55U/C/MDV-NC55U/C/M114~115VTR MAIN PWBComponent Side SIDE A

Page 6 - 4. PART NAMES

1234567891011 12 13 14 15 16 17 18 19 20ABCDEFGHIJDV-NC55U/C/MDV-NC55U/C/M116~117Wiring Side SIDE A

Page 7

1234567891011 12 13 14 15 16 17 18 19 20ABCDEFGHIJDV-NC55U/C/MDV-NC55U/C/M118~119Component Side SIDE B

Page 8 - Main Unit (Rear)

1234567891011 12 13 14 15 16 17 18 19 20ABCDEFGHIJDV-NC55U/C/MDV-NC55U/C/M120~121Wiring Side SIDE B

Page 9 - CARES WHEN USING THE PICKUP

122DV-NC55U/C/MABCDEFGHIJ12345678910- M E M O -

Page 10 - 6-1. DISASSEMBLY METHOD

Ref. No. Part No. ★ Description CodeRef. No. Part No. ★ Description Code123DV-NC55U/C/MTRANSISTORSQ202 VS2SA1576A+-1 2SA1576A+ ABQ203 VS2SA1576A+-1 2S

Page 11

Ref. No. Part No. ★ Description CodeRef. No. Part No. ★ Description Code124DV-NC55U/C/MC732 VCKYCY1CB104K 0.1 16V Ceramic ABC733 VCKYCY1CB104K 0.1 16V

Page 12 - Extension Cable Diagram

Ref. No. Part No. ★ Description CodeRef. No. Part No. ★ Description Code125DV-NC55U/C/MR736 VRS-CY1JF103J 10k 1/16W Metal Oxide AAR737 VRS-CY1JF000J 0

Page 13

11DV-NC55U/C/M2625Connector2831293032323433(14)Remove the connector.(15)Remove the three screws g and h.5) Removing the cassette housing control/VTR m

Page 14 - 7-4. SIGNALS OF PICKUP

Ref. No. Part No. ★ Description CodeRef. No. Part No. ★ Description Code126DV-NC55U/C/MJ5102 QJAKE0257GEZZ Jack, AUDIO IN(L) AEJ5103 QJAKE0180CEZZ Jac

Page 15

Ref. No. Part No. ★ Description CodeRef. No. Part No. ★ Description Code127DV-NC55U/C/MC6051 VCKYCY1EB103K 0.01 25V Ceramic AAC6052 VCEA9M1CW476M 47 1

Page 16

Ref. No. Part No. ★ Description CodeRef. No. Part No. ★ Description Code128DV-NC55U/C/MR6071 VRS-CY1JF821J 820 1/16W Metal Oxide AAR6072 VRS-CY1JF821J

Page 17

Ref. No. Part No. ★ Description CodeRef. No. Part No. ★ Description Code129DV-NC55U/C/MR9070 VRS-CY1JF123J 12k 1/16W Metal Oxide AAR9071 VRS-CY1JF222F

Page 18

Ref. No. Part No. ★ Description CodeRef. No. Part No. ★ Description Code130DV-NC55U/C/MR6050 VRS-CY1JF473J 47k 1/16W Metal Oxide AAR6051 VRS-CY1JF473J

Page 19

Ref. No. Part No. ★ Description CodeRef. No. Part No. ★ Description Code131DV-NC55U/C/MC1507 VCKYCY1CF104Z 0.1 16V Ceramic AAC1508 VCEA9M1HW475M 4.7 5

Page 20 - 8-5. CARES WHEN REASSEMBLING

Ref. No. Part No. ★ Description CodeRef. No. Part No. ★ Description Code132DV-NC55U/C/MC1953 VCEA9M1CW106M 10 16V Electrolytic ABC1954 VCEA9M1HW105M 1

Page 21 - SETTE HOUSING

Ref. No. Part No. ★ Description CodeRef. No. Part No. ★ Description Code133DV-NC55U/C/MR1666 VRS-CY1JF682J 6.8k 1/16W Metal Oxide AAR1667 VRS-CY1JF101

Page 22

Ref. No. Part No. ★ Description CodeRef. No. Part No. ★ Description Code134DV-NC55U/C/MDUNTK6068TEV2VTR MAIN PWB UNIT(Continued)BALUNESFB1101 RBLN-008

Page 23 - UP TORQUE IN REWIND MODE

Ref. No. Part No. ★ Description CodeRef. No. Part No. ★ Description Code135DV-NC55U/C/MMECHANISM PARTS (VTR PART)501 LBNDK1011AJZZ Tension Band Ass’y

Page 24

12DV-NC55U/C/M6-2. EXTENSION CABLE USE POINT (FOUR PLACES)Extension Cable DiagramParts Code Price Code Name/DescriptionQCNW-8570GEZZ AV Extension cabl

Page 25

Ref. No. Part No. ★ Description CodeRef. No. Part No. ★ Description Code136DV-NC55U/C/MCABINET PARTS1 CCABA3154TEV1 Top Cabinet Ass'y AQ3 CPNLC29

Page 26 - 2.3 ± 0.25

Ref. No. Part No. ★ Description CodeRef. No. Part No. ★ Description Code137DV-NC55U/C/MMECHANISM EXPLODED VIEW (DVD PART)ABCDEFGH123456Dry CoatingDry

Page 27

Ref. No. Part No. ★ Description CodeRef. No. Part No. ★ Description Code138DV-NC55U/C/MMECHANISM EXPLODED VIEW (VTR PART)ABCDEFGH123456214203218207207

Page 28

Ref. No. Part No. ★ Description CodeRef. No. Part No. ★ Description Code139DV-NC55U/C/MCASSETTE HOUSING CONTROL EXPLODED VIEWABCDEFGH12345630130431131

Page 29

Ref. No. Part No. ★ Description CodeRef. No. Part No. ★ Description Code140DV-NC55U/C/MCABINET EXPLODED VIEWABCDEFGH123456GHJNMCABAZRQPFXIGYSRWPQSAGIE

Page 30

Ref. No. Part No. ★ Description CodeRef. No. Part No. ★ Description Code141DV-NC55U/C/MFRONT PANEL EXPLODED VIEWABCDEFGH123456616601607605609614612617

Page 31

Ref. No. Part No. ★ Description CodeRef. No. Part No. ★ Description Code142DV-NC55U/C/M16. PACKING OF THE SET★SPAC4620AJZZ(Packing Case)★SPAKP0209AJZZ

Page 32 - (DIRECT DRIVE) MOTOR

Ref. No. Part No. ★ Description CodeRef. No. Part No. ★ Description Code143DV-NC55U/C/M

Page 33

Ref. No. Part No. ★ Description CodeRef. No. Part No. ★ Description Code144DV-NC55U/C/MSHARP CORPORATIONAV Systems GroupQuality & Reliability Cont

Page 34

13DV-NC55U/C/M<Replacing the pickup and the spindle motor>Since the pickup optical axis and turntable inclination of DVD are adjusted with highe

Page 35 - 8-26. INSTALLING THE SHIFTER

14DV-NC55U/C/M7. OPERATION OF PICKUP7-1. CIRCUIT CONFIGURATION OF PICKUPThe pickup unit reads signals from the disk, and the flexible cable is connect

Page 36

15DV-NC55U/C/M12. JiGRVGH-F18 BU11. JiGDRiVER-6 BM10. JiGDRiVERH-4 AP4. Torque Driver JiGTD1200 CB8. ADJUSTMENT, REPLACEMENT AND ASSEMBLY OF MECHANICA

Page 37

16DV-NC55U/C/M8-2. MAINTENANCE CHECK ITEMS AND EXECUTION TIMEPerform the maintenance with the regular intervals as follows so as to maintain the quali

Page 38 - 9. TEST MODE

17DV-NC55U/C/M8-3. FUNCTION OF MAJOR MECHANICAL PARTS (TOP VIEW)No. FunctionNo. Function1 Full erase head2 Supply pole base ass’y3 Tension arm4 Idler

Page 39

18DV-NC55U/C/MFUNCTION OF MAJOR MECHANICAL PARTS (BOTTOM VIEW)No. FunctionNo. Function15 Upper and lower drum ass’y16 Loading motor17 Drum drive motor

Page 40

19DV-NC55U/C/M312AUDIO/VIDEO PWBMAIN PWBCASSETTEHOUSINGTunerMECHANISMCHASSIS8-4. DISASSEMBLING THE MECHANISM/MAIN PWB ASSEMBLY1. When removing the mec

Page 41 - 10. TROUBLESHOOTING

2DV-NC55U/C/M1. IMPORTANT SERVICE NOTESWARNING :TO REDUCE THE RISK OF FIRE OR ELEC-TRIC SHOCK, DO NOT EXPOSE THIS AP-PLIANCE TO RAIN OR MOISTURE.RISK

Page 42

20DV-NC55U/C/M8-5. CARES WHEN REASSEMBLINGINSTALLING THE CASSETTE HOUSINGWhen the cassette housing is installed on the mechanism,the initial setting i

Page 43 - FLOW CHART NO.10

21DV-NC55U/C/MFigure 8-1.• Reassembly1. Before installing the cassette housing control, short-circuit between TP5102 and TP5103 provided goes leftat V

Page 44

22DV-NC55U/C/M8-8. REEL DISK REPLACEMENT AND HEIGHTCHECK• Removal1. Remove the cassette housing control assembly.2. Pull the tension band out of the t

Page 45

23DV-NC55U/C/M2. Whenever replacing the reel disk, perform the heightchecking and adjustment.Notes:1. Hold the torque gauge by hand so that it is not

Page 46

24DV-NC55U/C/MNotes:1. Hold the torque gauge by hand so that it is not moved.2. Do not keep the reel disk in lock state. Do not allow long-time measur

Page 47

25DV-NC55U/C/MFigure 8-13.1. Detach the pinch roller from the capstan shaft.Do not separate excessively. Or the pinch lever andpinch double action lev

Page 48

26DV-NC55U/C/M• Checking1. Set a cassette tape, push the REC button to place theunit in the SP record mode. Now check the tension poleposition.2. Visu

Page 49

27DV-NC55U/C/M• Adjustment1. If the indication of torque cassette meter is lower thanthe setting, shift the tension spring engagement to thepart A.2.

Page 50

28DV-NC55U/C/MFigure 8-24.• Replacement1. Solder the removed PWB to the new head assembly.2. Adjust the height from the A/C head arm (lower surface)to

Page 51

29DV-NC55U/C/M500gFigure 8-26.Figure 8-27.Height screwAzimuth screwTilt screwCassette tapeWeight to preventfloat (500g)Mechanism chassisTape0.3mmA/C

Page 52 - 11. IC FUNCTION LIST

3DV-NC55U/C/M1. NOTES DE SERVICE IMPORTANTESATTENTION: POUR REDUIRE LES RESQUES D'IN-CENDIE OU DE CHOC ELECTRIQUE,NE PAS EXPOSER CET APPAREIL ALA

Page 53 - • Block Diagram

30DV-NC55U/C/M8-21. ADJUSTMENT OF TAPE DRIVE TRAIN1. Tape run rough adjustment1 Remove the cassette housing control assembly.2 After short-circuiting

Page 54

31DV-NC55U/C/M3 Next, press the tracking button (+), (–) and changethe ATR signal waveform from max to min and frommin to max. At this time adjust the

Page 55

32DV-NC55U/C/M8-23. REPLACEMENT OF DRUM D.D. MOTOR1. Set the ejection mode.2. Withdraw the main power plug from the socket.• Removal (Perform in nume

Page 56

33DV-NC55U/C/M8-25.ASSEMBLING OF PHASE MATCHINGMECHANISM COMPONENTS• Assemble the phase matching mechanism compo-nents in the following order.1. Assem

Page 57

34DV-NC55U/C/M1Insert Reverse Guide Lever Ass’yFigure 8-42-1.Figure 8-42-3.Figure 8-42-2.Phase Matching Point 2Pinch Roller DoubleAction Lever Ass&apo

Page 58

35DV-NC55U/C/MFigure 8-44.8-26. INSTALLING THE SHIFTERFigure 8-43.1. Make sure that the loading gear is at the Phase-Match-ing point 1 as shown below.

Page 59

36DV-NC55U/C/M8-27.INSTALLING THE MASTER CAM (ATREAR SIDE OF MECHANISM CHASSIS)1. Make sure beforehand that the shifter is at the point asshown below.

Page 60 - • Terminal description

37DV-NC55U/C/M2. Synchro Gear, Drive Gear L and Drive Gear R8-29. ASSEMBLY OF CASSETTE HOUSING1. Drive Gear and R Drive angle ass’yFigure 8-48.MSPRT03

Page 61

38DV-NC55U/C/MThe preparation date display of the program10000000 ~~~~~~~~ (Last updata)Model numbe

Page 62

39DV-NC55U/C/MLASER TEST30000001 000000DDLASER TEST30000001 000000CDSTEP TEST30000200 00000000"1" Key input"3" Key input"1&q

Page 63 - TOP VIEW

4DV-NC55U/C/M2. FEATURESËËËËË Common Features• A DVD, CD player and VCR all in one.• Simultaneous VCR recording and DVD playback.ËËËËË VCR• Hi-

Page 64

40DV-NC55U/C/MFrom (2)PLAY TEST30000001 00000000PLAY TESTDD000303 ~~~~~~~~SPIN OFFSET"3" Key input"MENU" Key input"Open/Clo

Page 65

41DV-NC55U/C/MFLOW CHART NO.1Is the supply voltage of 5V fed to pin(14) and pin(38) of IC5001?Check the PC 5V line.Is the supply voltage of -19V fed t

Page 66

42DV-NC55U/C/MFLOW CHART NO.6Is the focus control signal output to the pin(158) ofIC701?Check the pin(11) of IC701 DAC power source periphery circuit.

Page 67

43DV-NC55U/C/MFLOW CHART NO.10Set the disc on the disc tray.Are the digital audio interface signals outputted to the pins of main unit connector CN801

Page 68

44DV-NC55U/C/MFLOW CHART NO.1Is the supply voltage of 5V feed to pin(8) of IC5101?Check STBY 5V line.Is the supply voltage of –20V feed to pin(1) of I

Page 69 - SS 0V ground

45DV-NC55U/C/MFLOW CHART NO.8Is the voltage more than about 2.6V DC given out of pin(29) of IC1701.Check IC1701.Is the supply voltage of 5V feed to pi

Page 70

46DV-NC55U/C/MFLOW CHART NO.12Is there 14.3MHz oscillation at pins(37) and (38) of IC1701?Check peripheral circuit of X1701.Is there drum FG signal at

Page 71

47DV-NC55U/C/MFLOW CHART NO.15NOYESYESNOYESYESNOYESYESYESNONOYESYESNOYESNOYESNOYESYESNONONOIs luminance signal (approx. 0.5 Vp-p) input to the pin(19)

Page 72

48DV-NC55U/C/MFLOW CHART NO.16NO NOYESYESYESNONOYESYESNONONOYES YESYESYESNONONOYESNOYESNOYES YESNOYESNOYESIs FM signal (approx. 0.4 Vp-p) input to the

Page 73

49DV-NC55U/C/MFLOW CHART NO.17NOCheck the peripheral circuit of front input terminal.L-chR-chFront input terminalRear input terminalYESNOYESYESNONOTun

Page 74

5DV-NC55U/C/MChannel Coverage: VHF 2-13UHF 14-69CATV 1-125Antenna Input: 75ΩVideo Input: Input level: 0.5 to 2.0 Vp-p (75Ω)Video Output: Output level:

Page 75

50DV-NC55U/C/MFLOW CHART NO.1NOYESNOYESNOYESNOYESNOAre STBY 44V, AT 23V, PC 12V, STBY –24V, STBY 5V and filament voltage lines normal?Is the fuse good

Page 76 - 12. BLOCK DIAGRAMS

51DV-NC55U/C/MYESYESNONONONOYESYESYESYESYESNONOPC 9V is not output.FLOW CHART NO.6Check the secondary circuit, AT 12V and PC 12V switch(Q9053) circuit

Page 77 - DV-NC55U/C/MDV-NC55U/C/M

52DV-NC55U/C/MPin No. Terminal name I/O Operation functionTerminal DC Voltage(TYP.)Remarks1 GND – GND terminal. –2 P2TP I TE+input (CD) VrA3 P2TN I TE

Page 78 - 12-3. VTR SERVO BLOCK DIAGRAM

53DV-NC55U/C/M• Block DiagramP1TPP1TNLDO1MDI1EQFEQBVrARFDCTCC1GND2NCNCVcc2DPDBFEBTEBRFSVccRRFOpRFOnRPPRPBRPORPZNCVccSDFTNFEOTEOLVLVccPVCKFP1FNP1FPLDP1

Page 79 - 12-4. POWER BLOCK DIAGRAM

54DV-NC55U/C/M11-2. IC501 IX1689GE FLASH MEMORYPin No. Symbol Type Name and functionByte selection address: When the device is in the x8 mode, the low

Page 80

55DV-NC55U/C/MOutputBufferOutputBufferInputBufferInputBufferIDRegisterDATA QUEUEREGISTERCSRESRsDataComparatorDQ8-14DQ0-7I/O LogicOUTPUT MULTIPLEXERReg

Page 81

56DV-NC55U/C/MMD2VccVccVccVccVccVssVssVssVssVssVssVssVssPD7/D15PD6/D14PD5/D13PD4/D12PD3/D11PD2/D10PD1/D9PD0/D8PE7/D7PE6/D6PE5/D5PE4/D4PE3/D3PE2/D2PE1/

Page 82

57DV-NC55U/C/M11-5. IC508 IX1761GE TRACK BUFFER INTERFACEPin No. Terminal name I/O Operation function1 VDD1 Supply Digital power supply +3.3V2 HADR0 I

Page 83

58DV-NC55U/C/MPin No. Terminal name I/O Operation function52 PDI[8] Output Input DVD/CD data53 PDI[7] Output Input DVD/CD data54 PDI[6] Output Input D

Page 84

59DV-NC55U/C/MVSSPSYCIPDRQIPDCKIDVDREQVDD2VSSPDCKOPDRQOPSYCOVDD1VSSPDO[8]PDO[7]PDO[6]PDO[5]PDO[4]PDO[3]PDO[2]PDO[1]PDO[0]VSSHINTHWAITVDD15049484746454

Page 85

6DV-NC55U/C/M4. PART NAMESVCR Main Unit (Front)REW PLAYSTANDBYCH(TRACKING)/POWEREJECT/ STOPPLAY STOPOPEN/CLOSEVCR DVD(AV 1 )L(MONO)-AUDIO-RAV 2 IN

Page 86

60DV-NC55U/C/MName Type DescriptionHost interface, CD-DSP interface, sub-code interface (32-pin)RESET# IDReset input (active Low). When shifting from

Page 87

61DV-NC55U/C/MName Type DescriptionHost interface, CD-DSP interface, sub-code interface (32-pin)...continuedHost ready output (active High). Use this

Page 88

62DV-NC55U/C/MName Type DescriptionDigital audio port (8-pin)AMCLK I/O(p.u.)Audio master clock I/O. Sampling frequency can be selected among 384fs, 25

Page 89

63DV-NC55U/C/MVDDASTNDBY#GNDARESET#SCNENBLVDDPVCLKx2GNDPTESTMODEVDDAAMAMCLKGNDAAMS/PDIF/AOUT3GPIOVDDPAOUT0AOUT1AOUT2ALRCLKVDDPABCLKVDDCGPSOGNDCGPSIGND

Page 90 - DVD MAIN PWB

64DV-NC55U/C/MRefreshInterval TimerRefreshCounterSelf Refresh CounterAddressRegisterBurst LengthCounterColumn Addr.Latch & Counter512Kx16Bank 1Col

Page 91

65DV-NC55U/C/MPin No.Terminal Name In/Output Operation function 3/5V system Remarks1 ASLCN Output Data slice negative pole output 3V system Analog out

Page 92

66DV-NC55U/C/MPin No.Terminal Name In/Output Operation function 3/5V system Remarks55 NC––56 NC57 SMCK Output 22M system clock output 5V system58 VMCK

Page 93

67DV-NC55U/C/MPin No.Terminal Name In/Output Operation function 3/5V system Remarks111 BD13112 BD14 In/Output External RAM data I/O 5V system113 BD151

Page 94 - VTR DISPLAY PWB

68DV-NC55U/C/MDAC I/FDAC1bit DACforCD-DAClockPLLMicomI/FMicom BUSServoControlDEQADCDigital ServoDataSlicerPLLSlicelevelGen.SyndromeoperationECCOutputI

Page 95 - DVD DISPLAY PWB

69DV-NC55U/C/MRAS clockgeneratorCAS clockgeneratorWE clockgeneratorData I/O BusColumn decodersSense amplifiersRefreshcounterAddress buffersand predeco

Page 96 - AUDIO/VIDEO PWB

7DV-NC55U/C/MREV FWDPLAYSTOP100OPEN/CLOSEVCR/ DVDSELECTORVCR MENUDVD SETUPTAPESPEEDONSCREENTITLEDVD MENUDISPLAYFUNCTIONCONTROLPROGRAM ZOOMCANCELRETURN

Page 97

70DV-NC55U/C/MSerialDataInterfaceControlSegmentDriver/GridDriver/Key ScanOutputGridDriverDimming CircuitTiming GeneratorKey Matrix MemoryDisplay Memor

Page 98 - POWER PWB

71DV-NC55U/C/MBCKLRCKNANASCLKDATATEST1TEST2RSTMLMCMDIMDOSirialI/FMulcher LevelData-SigmaModulatorDACDACCR LPF+Output AmpCR LPF+Output AmpVOUTLVOUTRVCO

Page 99

72DV-NC55U/C/M28 27 26 25 24 23 22 21 20 19 18 17 16 151 2 3 4 5 6 7 8 9 10 11 12 13 14-+-+-+10K-+10K16K16K-+-+-+10K16K-+10K16KMUTEREV OUTFFWD OU

Page 100 - Wiring Side SIDE A

73DV-NC55U/C/MPin No. Terminal Name In/Output Operation function1 TRAY ACK(L) Input Input terminal of [TRAY ACK] from DVD microcomputer2 DVD LED(L) Ou

Page 101 - Wiring Side SIDE B

74DV-NC55U/C/MPort 2 Port 4Port 09Port 3Port 1HIGH FREQOSCLOW FREQOSCP22~P20 P47~P40P17~P10 P37~P30 P07~P00STOPINTREQTI0, TI1RXD,TXDUART8bit TMRSCK, S

Page 102 - VTR MAIN PWB

75DV-NC55U/C/M- M E M O -

Page 103

1234567891011 12 13 14 15 16 17 18 19 20ABCDEFGHIJDV-NC55U/C/MDV-NC55U/C/M12. BLOCK DIAGRAMS12-1. MAIN BLOCK DIAGRAM76~77

Page 104

1234567891011 12 13 14 15 16 17 18 19 20ABCDEFGHIJDV-NC55U/C/MDV-NC55U/C/M12-2. VTR SIGNAL FLOW BLOCK DIAGRAM78~79

Page 105

1234567891011 12 13 14 15 16 17 18 19 20ABCDEFGHIJDV-NC55U/C/MDV-NC55U/C/M80~8112-3. VTR SERVO BLOCK DIAGRAM

Page 106 - - M E M O

1234567891011 12 13 14 15 16 17 18 19 20ABCDEFGHIJDV-NC55U/C/MDV-NC55U/C/M82~8312-4. POWER BLOCK DIAGRAM

Page 107 - EXPLODED VIEWS

8DV-NC55U/C/MMain Unit (Rear)DVD OUTAV 2 OUTDIGITAL AUDIOAUDIORLS-VIDEODVD/VCRAV 1 OUTAUDIORLVIDEOVCRAV 1 INAUDIORL(MONO)VIDEO IN FROMANTENNAUHF/VHF

Page 108 - DV-NC55U/C/M

1234567891011 12 13 14 15 16 17 18 19 20ABCDEFGHIJDV-NC55U/C/MDV-NC55U/C/M84~8513. SCHEMATIC DIAGRAMS 13-1. DVD MAIN (1) CIRCUIT SCHEMATIC DIAGRAM

Page 109

1234567891011 12 13 14 15 16 17 18 19 20ABCDEFGHIJDV-NC55U/C/MDV-NC55U/C/M86~8713-2. DVD MAIN (2) CIRCUIT SCHEMATIC DIAGRAM

Page 110

88DV-NC55U/C/MABCDEFGHIJ1234567891013-3. VTR DISPLAY CIRCUIT SCHEMATIC DIAGRAM

Page 111

89DV-NC55U/C/M10 11 12 13 14 15 16 17 18 19ABCDEFGHIJ1234567891013-4. DVD DISPLAY CIRCUIT SCHEMATIC DIAGRAM

Page 112

1234567891011 12 13 14 15 16 17 18 19 20ABCDEFGHIJDV-NC55U/C/MDV-NC55U/C/M90~9113-5. AUDIO/VIDEO CIRCUIT SCHEMATIC DIAGRAM

Page 113

1234567891011 12 13 14 15 16 17 18 19 20ABCDEFGHIJDV-NC55U/C/MDV-NC55U/C/M92~9313-6. POWER CIRCUIT SCHEMATIC DIAGRAMå AND SHADED COMPONENTS=SAFETY REL

Page 114

1234567891011 12 13 14 15 16 17 18 19 20ABCDEFGHIJDV-NC55U/C/MDV-NC55U/C/M94~9513-7. INTERFACE CIRCUIT SCHEMATIC DIAGRAM

Page 115

1234567891011 12 13 14 15 16 17 18 19 20ABCDEFGHIJDV-NC55U/C/MDV-NC55U/C/M96~9713-8. VTR MAIN (1) CIRCUIT SCHEMATIC DIAGRAM

Page 116

1234567891011 12 13 14 15 16 17 18 19 20ABCDEFGHIJDV-NC55U/C/MDV-NC55U/C/M98~9913-9. VTR MAIN (2) CIRCUIT SCHEMATIC DIAGRAMåå AND SHADED COMPONENTS=S

Page 117

1234567891011 12 13 14 15 16 17 18 19 20ABCDEFGHIJDV-NC55U/C/MDV-NC55U/C/M100~10113-10. VTR MAIN (3) CIRCUIT SCHEMATIC DIAGRAM

Page 118 - (NOT REPLACEMENT ITEM)

9DV-NC55U/C/M5. MAINTENANCE CHECK ITEMS AND EXECUTION TIMEPartsMaintained1,000 hrs.2,000 hrs.PickupSpindle UnitSled MotorLoading MotorBeltNote : Part

Page 119

102DV-NC55U/C/MABCDEFGHIJ12345678910FD2R825R826C517R555C609C610C611C612C613R601C614C615C616C621CN802R603C625R605R604R602C622C623IC601C605C608C607C606R

Page 120

103DV-NC55U/C/M10 11 12 13 14 15 16 17 18 19ABCDEFGHIJ12345678910Wiring Side SIDE A

Page 121

104DV-NC55U/C/MABCDEFGHIJ12345678910FD3TP828C201R227R821Q205C617FB601C618C619C640C620 C646FB603C641Z1Z2R812FB806FB808FB809FB810C516R559R560R562IC502Q5

Page 122

105DV-NC55U/C/M10 11 12 13 14 15 16 17 18 19ABCDEFGHIJ12345678910Wiring Side SIDE B

Page 123

106DV-NC55U/C/MABCDEFGHIJ12345678910VTR DISPLAY PWBComponent Side SIDE AWiring Side SIDE AComponent Side SIDE BWiring Side SIDE B

Page 124 - CABINET EXPLODED VIEW

107DV-NC55U/C/M10 11 12 13 14 15 16 17 18 19ABCDEFGHIJ12345678910DVD DISPLAY PWBComponent Side SIDE AWiring Side SIDE AComponent Side SIDE BWiring

Page 125 - FRONT PANEL EXPLODED VIEW

108DV-NC55U/C/MABCDEFGHIJ12345678910AUDIO/VIDEO PWBComponent Side SIDE AWiring Side SIDE A

Page 126 - 16. PACKING OF THE SET

109DV-NC55U/C/M10 11 12 13 14 15 16 17 18 19ABCDEFGHIJ12345678910Component Side SIDE BWiring Side SIDE B

Page 127

110DV-NC55U/C/MABCDEFGHIJ12345678910POWER PWBComponent Side SIDE AWiring Side SIDE A

Page 128

111DV-NC55U/C/M10 11 12 13 14 15 16 17 18 19ABCDEFGHIJ12345678910Component Side SIDE BWiring Side SIDE B

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