Sharp DV-NC70U Service Manual
Sharp DV-NC70U Manual
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Sharp DV-NC70U manual content summary:
- Sharp DV-NC70U | Service Manual - Page 1
EJECT/STOP / REW PLAY AV 2 IN VIDEO L(MONO)-AUDIO-R REC CH DV-NC70U/C DV-NC72U SERVICE MANUAL S62K3DV-NC70U VCR/DVD COMBINATION MODEL DV-NC70U VCR/DVD SELECTOR TIMER VCR DVD PLAY STOP OPEN/CLOSE DV-NC70C MODELS DV-NC72U In the interests of user-safety (Required by safety regulations in - Sharp DV-NC70U | Service Manual - Page 2
DV-NC70U/C DV-NC72U 1. IMPORTANT SERVICE NOTES BEFORE SERVICING TO QUALIFIED SERVICE PERSONNEL. This symbol warns the user of uninsulated voltage within the unit that can cause dangerous electric shocks. This symbol alerts the user that there are important operating and maintenance instructions - Sharp DV-NC70U | Service Manual - Page 3
DV-NC70U/C DV-NC72U 1. NOTES DE SERVICE IMPORTANTES AVANT DE RENDRE LE VCR/DVD MAGNETOSCOPE pièces la cause de secousses électriques dangereuses. Ce symbole avertit l'utilisateur que des instructions importantes relatives à l'utilisation et àl'entretien se trouvent dans le manuel accompagnant l' - Sharp DV-NC70U | Service Manual - Page 4
DV-NC70U/C DV-NC72U 2. FEATURES Ë Common Features • A DVD, CD player and VCR all in one. Clock Set Up) • S-VHS Quasi Playback • 19µ Clear Picture System (in EP mode) • Simple Recording Timer • Sharp Super Picture • Exact Rec/Tape Remaining Ë DVD • Plays DVD, CD (Digital Audio) discs as well as CD-R/ - Sharp DV-NC70U | Service Manual - Page 5
.6 lbs) Specifications are subject to change without notice. Weight and dimensions are approximate. 3-1. ACCESSORIES Accessories: Remote control unit × 1, "AA" size battery (R-6, UM/SUM-3) × 2, VIDEO/AUDIO cable × 1, Round coaxial cable (75 Ohm, 1 m [3-1/4 ft.]) × 1 DV-NC70U/C DV-NC72U 5 - Sharp DV-NC70U | Service Manual - Page 6
DV-NC70U/C DV-NC72U 4. PART NAMES 6 VCR Main Unit (Front) POWER EJECT/STOP Cassette compartment VCR/DVD SELECTOR TIMER indicator Front AUDIO/ VIDEO input jack POWER EJECT/STOP / - Sharp DV-NC70U | Service Manual - Page 7
VIDEO output jacks DVD S-VIDEO output jack DVD AUDIO output jacks DVD/VCR shared AUDIO output jacks VCR AUDIO input jacks ANTENNA IN (antenna or cable input) DVD/VCR VCR OUT AV 1 IN IN FROM ANTENNA R R AUDIO L VIDEO AUDIO L (MONO) VIDEO UHF/VHF CATV OUT TO TV ANTENNA OUT VCR VIDEO - Sharp DV-NC70U | Service Manual - Page 8
DV-NC70U/C DV-NC72U 8 Remote Control Unit (VCR Operation Buttons) The explanations on this page use the VCR/DVD CHANGE Switch in the VCR position. Remote Control Unit ( - Sharp DV-NC70U | Service Manual - Page 9
5. MAINTENANCE CHECK ITEMS AND EXECUTION TIME DV-NC70U/C DV-NC72U MECHANICAL PARTS REGUIRING PERIODICAL INSPECTION Use the following table as a guide to maintain the mechanical parts in good operating condition. Parts Pickup Spindle Unit Sled Motor Loading Motor Belt Maintained 1,000 hrs. 2, - Sharp DV-NC70U | Service Manual - Page 10
DV-NC70U/C DV-NC72U 6. DISASSEMBLY METHOD 6-1. DISASSEMBLY METHOD 1 1) Removing the cabinet. (1) Remove the four screws 1 and one screw 2. 2) Removing the front panel. (1) Remove the two screws 3. (2) Release the - Sharp DV-NC70U | Service Manual - Page 11
(6) Remove the two screws e to remove the Power PWB Unit. DV-NC70U/C DV-NC72U 5) Removing the Cassette Housing Control/VCR Mechanism. (1) Remove the two screws r. (2) Remove the one screw t. (3) Remove the two screws y. 6) Removing the Antenna Terminal Cover/ - Sharp DV-NC70U | Service Manual - Page 12
DV-NC70U/C DV-NC72U 6-2. EXTENSION CABLE USE POINT (ONE PLACE) Parts Code QCNW-8571GEZZ Price Code AN Name/Description Extension cable (wire), 9pin 500mm DVD Main CN3201-Power CN201 Extension Cable Diagram Tuner VCR Main PWB VCR Mechanism Power PWB CN201 QCNW-8571GEZZ 9 pin DVD Mechanism - Sharp DV-NC70U | Service Manual - Page 13
DV-NC70U/C DV-NC72U 6-3. REPLACEMENT OF MAIN PARTS 1. Remove the mechanism with angle from the set. (refer to 33 on turntable inclination of DVD are adjusted with higher accuracy, make a replacement as a mechanism service chassis ass'y. Pickup Interface PWB 13 Pickup FFC Short Land - Sharp DV-NC70U | Service Manual - Page 14
DV-NC70U/C DV-NC72U 7. OPERATION OF PICKUP 7-1. CIRCUIT CONFIGURATION OF PICKUP The pickup unit reads signals from the disk, and the flexible cable is connected to the board. The following signals flow through the cable. 7-2. EQUIVALENT CIRCUIT OF PICKUP 7-3. POLARITIES OF SIGNAL FO+ TR- TR+ FO- - Sharp DV-NC70U | Service Manual - Page 15
DV-NC70U/C DV-NC72U 8. ADJUSTMENT, REPLACEMENT AND ASSEMBLY OF MECHANICAL UNITS The explanation given below relates to the on-site general service (field service BY JiGSG2000 BS JiGSG0300 BF JiGADP003 BK 8. Alignment Tape 9. Guide roller height adjustment driver X value adjustment 10. gear driver - Sharp DV-NC70U | Service Manual - Page 16
DV-NC70U/C DV-NC72U 8-2 MAINTENANCE CHECK ITEMS AND EXECUTION TIME Perform the maintenance with the regular intervals as follows so as to maintain the quality of machine. Parts Maintained 500 1000 1500 2000 hrs. hrs. hrs. hrs. Guide roller ass'y Possible symptom encountered Remarks Abnormal - Sharp DV-NC70U | Service Manual - Page 17
8-3. FUNCTION OF MAJOR MECHANICAL PARTS (TOP VIEW) - Sharp DV-NC70U | Service Manual - Page 18
DV-NC70U/C DV-NC72U FUNCTION OF MAJOR MECHANICAL PARTS (BOTTOM VIEW) - Sharp DV-NC70U | Service Manual - Page 19
DV-NC70U/C DV-NC72U 8-4. DISASSEMBLY AND REASSEMBLY 8-4-1 DISASSEMBLING THE MECHANISM 1. When removing the mechanism from the set. Remove the two screws 1 which connecting mechanism and main frame. Take - Sharp DV-NC70U | Service Manual - Page 20
DV-NC70U/C DV-NC72U 2. Mechanical initial setting • Rotate the worm gear by pushing the flange manually until return to initial position. • When apply power supply to rotate the loading motor, please remove/unsolder at least one terminal wire. • If voltage applied - Sharp DV-NC70U | Service Manual - Page 21
housing control. 1 DV-NC70U/C DV-NC72U Notes 1. In the case when you use the magnet screw driver, never approach the magnet driver to the A/C head, FE head, and drum. 2. When installing or removing, take care so that the cassette housing control and tool do not contact the guide - Sharp DV-NC70U | Service Manual - Page 22
DV-NC70U/C DV-NC72U 8-7 REEL DISK REPLACEMENT AND HEIGHT CHECK • Removal 1. Remove the cassette so that it does not contact the drum. 2. When putting the master plane, shift the reverse guide a little in the loading direction. Care must be taken since excessive shift results in damage. Master plane - Sharp DV-NC70U | Service Manual - Page 23
2 to 3 seconds) by hand in the CW direction. 2. Make sure that the indication of torque gauge is not less than 25mN·m (255gf·cm). Torque gauge DV-NC70U/C DV-NC72U Notes: 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 - Sharp DV-NC70U | Service Manual - Page 24
DV-NC70U/C DV-NC72U Notes: 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 - Sharp DV-NC70U | Service Manual - Page 25
slowly (one rotation every 2 to 3 seconds) and check that the torque is within the set value 3.7 ± 1.5mN⋅m (38 ± 15gf⋅cm). Torque gauge DV-NC70U/C DV-NC72U Pinch roller Tension gauge 900 - 1,200gf Capstan shaft Tension gauge adapter Figure 8-12. CCW Take-up reel disk Figure 8-11. Note: Set - Sharp DV-NC70U | Service Manual - Page 26
DV-NC70U/C DV-NC72U • Checking 1. Set a cassette tape, push the REC button to place the unit in the SP record mode. Now check the tension pole position. 2. Visually - Sharp DV-NC70U | Service Manual - Page 27
part A. 2. If the indication of torque cassette meter is higher than the setting, shift the tension spring engagement to the part B. A B Tension arm DV-NC70U/C DV-NC72U • Checking the brake torque at the take-up side Torque gauge CW Take-up reel disk CCW Tension spring Figure 8-19. 8-16 - Sharp DV-NC70U | Service Manual - Page 28
DV-NC70U/C DV-NC72U 8-17 REPLACEMENT OF A/C (AUDIO/CONTROL) HEAD 1. In eject position unplug the power cord. • Removal 1. Take out FFC holder from main chassis. (Push 3 hooking point - Sharp DV-NC70U | Service Manual - Page 29
• Setting Azimuth screw Height screw Tilt screw Cassette tape DV-NC70U/C DV-NC72U 8-19 ADJUSTMENT OF TAPE DRIVE TRAIN 1. Tape switching pulse (TP202). 4 Set the alignment tape (VROATSV) to play. Guide roller Cassette Tape H Weight to prevent float (500g) Mechanism chassis Figure 8-25 - Sharp DV-NC70U | Service Manual - Page 30
DV-NC70U/C DV-NC72U Notes: 1. Previously set the tracking control in the center position, and to min and from min to max. At this time adjust the height of supply and take-up side guide roller with the adjustment driver (JiGDRiVERH-4) so that the ATR signal waveform changes nearly parallel. 4 If the - Sharp DV-NC70U | Service Manual - Page 31
. Supply side Take-up side DV-NC70U/C DV-NC72U When the tape is below the helical lead. Supply side Take-up side Adjustment Supply side guide roller rotated in clockwise direction (lowers guide roller) to flatten ATR signal. Take-up side guide roller rotated in clockwise direction (lowers - Sharp DV-NC70U | Service Manual - Page 32
DV-NC70U/C DV-NC72U 8-20 . 2. Set the tape, and check for the tape crease near the reverse guide in the playback mode. Adjust the A/C head and azimuth as stated in 8- . • Removal (Perform in numerical order.) 1. Disconnect the FFC cable 1. 2. Unscrew the Drum D.D. stator assembly fixing screws 2. 3. - Sharp DV-NC70U | Service Manual - Page 33
-NC70U/C DV-NC72U 8-23 ASSEMBLING OF PHASE MATCHING MECHANISM COMPONENTS • Assemble the phase matching mechanism components in the following order. 1. Assemble the reverse guide lever and pinch drive cam. 2. Mounting the shifter (on the back of the mechanism chassis). 3. Mounting the master cam (on - Sharp DV-NC70U | Service Manual - Page 34
DV-NC70U/C DV-NC72U 8-24 INSTALLING THE SHIFTER Drum Capstan D.D. motor 1. Make sure that the loading arm T and S are at the PhaseMatching point as shown below a . 2. Fix the - Sharp DV-NC70U | Service Manual - Page 35
is at initial position. (Right side from bottom view) 2. Place the master cam in the position as shown below. 3. Fix the E ring. E-ring DV-NC70U/C DV-NC72U 8-26 REPLACEMENT OF LOADING MOTOR • Removal Apply grease *Apply grease to the tip as well. Apply grease Leading connect gear. Apply grease - Sharp DV-NC70U | Service Manual - Page 36
DV-NC70U/C DV-NC72U 8-27 ASSEMBLY OF CASSETTE HOUSING 1. Proof lever, Proof lever spring and Holder R MSPRD0215AJFJ *Proof lever spring fixing direction designated. Figure 8-42. 2. Open lever, Sensor - Sharp DV-NC70U | Service Manual - Page 37
4. Frame R, Frame L, Drive Arm R, Drive Arm L, Upper Plate. LANGF9661AJFW DV-NC70U/C DV-NC72U Top surface should be free from scratches or soil. Figure 8-45. When assemble drive lever to frame R, make sure the hole synchronize. 37 - Sharp DV-NC70U | Service Manual - Page 38
DV-NC70U/C DV-NC72U 9. TEST MODE "NO DISC" state "F0" Key input (Press "Play" Key and "Stop" Key for 5 seconds.) F0000000 00000000 - Sharp DV-NC70U | Service Manual - Page 39
Following playback state * In case of 2-layer DVD, adjust the focus on, track on, focus balance adjustment and focus gain · track gain adjustment. To (2) 39 DV-NC70U/C DV-NC72U - Sharp DV-NC70U | Service Manual - Page 40
DV-NC70U/C DV-NC72U From (2) "DVD Menu" Key input Spin offset adjustment mode SPIN OFFSET ADJUST The tray opens. SPIN OFFSET ADJUST ADJUST COMPLETE SPIN ~~~~ (Offset adjustment of - Sharp DV-NC70U | Service Manual - Page 41
DV-NC70U/C DV-NC72U 41 10. TROUBLESHOOTING (VCR) FLOW CHART NO.1 No power NO Is the fuse good? YES Is the normal state restored when once unplugged NO power cord is plugged - Sharp DV-NC70U | Service Manual - Page 42
DV-NC70U/C DV-NC72U 42 FLOW CHART NO.7 Key-in input is not received. NO Does the key switch make good contact, when the cassette tape is inserted? - Sharp DV-NC70U | Service Manual - Page 43
DV-NC70U/C DV-NC72U 43 FLOW CHART NO.13 The capstan motor fails to run. NO Is the voltage more than about 2.6V DC given out of pin( - Sharp DV-NC70U | Service Manual - Page 44
DV-NC70U/C DV-NC72U 44 FLOW CHART NO.18 Capstan servo does not function. 1Only PB mode inoperative Are REC and/or PB mode inoperative? Check peripheral circuit - Sharp DV-NC70U | Service Manual - Page 45
between the pins(58) and (35) of IC201. (Check C515.) YES Is chroma signal (approx. 180 mVp-p/ Burst) outputted to the pin(35) of IC201? DV-NC70U/C DV-NC72U 45 Is luminance signal (approx. 0.5 Vp-p) NO inputted to the pin(23) of IC201? YES Is luminance signal (approx. 0.5 Vp-p) NO inputted and - Sharp DV-NC70U | Service Manual - Page 46
DV-NC70U/C DV-NC72U 46 FLOW CHART NO.21 Playback picture does not appear (E-E mode is possible). Although picture is played back, color does not appear (E-E mode is - Sharp DV-NC70U | Service Manual - Page 47
DV-NC70U/C DV-NC72U 47 FLOW CHART NO.22 No Hi-Fi E-E sound heard. Is there signal inputted at each terminal of IC651 as shown in table? NO - Sharp DV-NC70U | Service Manual - Page 48
DV-NC70U/C DV-NC72U 48 (DVD) FLOW CHART NO.1 The fluorescent display tube does not light. Is the supply voltage of 5V fed up to . Yes Is there input signal on the pins(49), (50), (51), (52) of IC3301? No Check the connection of optical pickup cable. If it is normal, replace the optical pickup. - Sharp DV-NC70U | Service Manual - Page 49
of objective lens of optical pickup. Replace traverse chassis unit. DV-NC70U/C DV-NC72U 49 Is the focus control drive voltage applied to the No terminal of focus actuator? Yes Check the connection of optical pickup cable. If - Sharp DV-NC70U | Service Manual - Page 50
DV-NC70U/C DV-NC72U 50 *1 Are the video signals shown above outputted into the pins of output terminal? Are the composite video signals outputted to the No VIDEO - Sharp DV-NC70U | Service Manual - Page 51
- M E M O - DV-NC70U/C DV-NC72U 51 - Sharp DV-NC70U | Service Manual - Page 52
DV-NV70U/C DV-NC72U 11. BLOCK DIAGRAMS 11-1. MAIN BLOCK DIAGRAM J DV-NC70U/C DV-NC72U I H G F E D C B A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 52~53 - Sharp DV-NC70U | Service Manual - Page 53
DV-NV70U/C DV-NC72U 11-2. VCR SIGNAL FLOW BLOCK DIAGRAM J DV-NC70U/C DV-NC72U I H G F E D C B A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 54~55 - Sharp DV-NC70U | Service Manual - Page 54
DV-NV70U/C DV-NC72U 11-3. VCR SERVO BLOCK DIAGRAM J DV-NC70U/C DV-NC72U I H G F E D C B A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 56~57 - Sharp DV-NC70U | Service Manual - Page 55
DV-NV70U/C DV-NC72U 11-4. POWER BLOCK DIAGRAM J DV-NC70U/C DV-NC72U I H G F E D C B A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 58~59 - Sharp DV-NC70U | Service Manual - Page 56
DV-NV70U/C DV-NC72U 12. SCHEMATIC DIAGRAMS 12-1. DVD MAIN (1) CIRCUIT SCHEMATIC DIAGRAM J DV-NC70U/C DV-NC72U I H G F E D C B A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 60~61 - Sharp DV-NC70U | Service Manual - Page 57
DV-NV70U/C DV-NC72U 12-2. DVD MAIN (2) CIRCUIT SCHEMATIC DIAGRAM J DV-NC70U/C DV-NC72U I H G F E D C B A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 62~63 - Sharp DV-NC70U | Service Manual - Page 58
DV-NV70U/C DV-NC72U 12-3. VCR MAIN (1) CIRCUIT SCHEMATIC DIAGRAM J DV-NC70U/C DV-NC72U I H G F E D C B A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 64~65 - Sharp DV-NC70U | Service Manual - Page 59
DV-NV70U/C DV-NC72U 12-4. VCR MAIN (2) CIRCUIT SCHEMATIC DIAGRAM J DV-NC70U/C DV-NC72U å AND SHADED COMPONENTS=SAFETY RELATED PARTS I H G F E D C å B A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 66~67 - Sharp DV-NC70U | Service Manual - Page 60
DV-NV70U/C DV-NC72U 12-5. VCR MAIN (3) CIRCUIT SCHEMATIC DIAGRAM J DV-NC70U/C DV-NC72U I H G F E D C B A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 68~69 - Sharp DV-NC70U | Service Manual - Page 61
DV-NC70U/C DV-NC72U 12-6. DVD OPERATION CIRCUIT SCHEMATIC DIAGRAM J I H G F E D C B A 1 2 3 4 5 6 7 8 9 10 70 - Sharp DV-NC70U | Service Manual - Page 62
12-7. VCR OPERATION CIRCUIT SCHEMATIC DIAGRAM J DV-NC70U/C DV-NC72U I H G F E D C B A 110 121 132 143 154 165 176 187 198 190 71 - Sharp DV-NC70U | Service Manual - Page 63
DV-NV70U/C DV-NC72U 12-8. POWER CIRCUIT SCHEMATIC DIAGRAM J DV-NC70U/C DV-NC72U å AND SHADED COMPONENTS=SAFETY RELATED PARTS I H G F E D C B A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 72~73 - Sharp DV-NC70U | Service Manual - Page 64
-NC72U 13. PRINTED WIRING BOARD ASSEMBLIES DVD MAIN PWB J SIDE A DV-NC70U/C DV-NC72U C3 2 0 4 R3 8 0 4 L3201 T P3T2P036T2P0372 0 8 C3 5 2 0 I R3 2 1 8 CN3 3 0 1 Q3 2 0 4 R3 2 1 2 R3 2 1 1 R3 2 1 0 C3 2 0 3 R3 2 0 4 R3 2 0 8 TP3 2 0 9 T P3 3T2P33 3T2P13 3T1P93 3T1P73 3T1P53 3T1P33 - Sharp DV-NC70U | Service Manual - Page 65
DV-NV70U/C DV-NC72U DV-NC70U/C DV-NC72U DVD MAIN PWB J SIDE B I H G F E D C B R3 8 0 2 C3 8 0 2 C3 8 0 3 R3 2 1 3 R3 8 0 8 R3 2 1 4 R3 8 0 7 RJ 3 1 0 7 C3 8 0 7 R3 8 0 6 C3 8 0 8 C3 3 0 2 C3 3 0 1 R3 3 0 4 RJ 3 1 0 8 F DC3 C3 8 0 4 C3 8 0 1 R3 8 0 3 R3 8 0 1 - Sharp DV-NC70U | Service Manual - Page 66
DV-NC70U/C DV-NC72U DVD OPERATION PWB J SIDE A Symbol SIDE B I H G F E D C B A 1 2 3 4 5 6 7 8 9 10 78 - Sharp DV-NC70U | Service Manual - Page 67
VCR OPERATION PWB J SIDE A Symbol SIDE B DV-NC70U/C DV-NC72U I H G F E D C B A 110 121 132 143 154 165 176 187 198 190 79 - Sharp DV-NC70U | Service Manual - Page 68
DV-NV70U/C DV-NC72U POWER PWB J SIDE A Symbol I DV-NC70U/C DV-NC72U H G F E D C B A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 80~81 - Sharp DV-NC70U | Service Manual - Page 69
DV-NV70U/C DV-NC72U POWER PWB J SIDE B I DV-NC70U/C DV-NC72U H G F E D C B A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 82~83 - Sharp DV-NC70U | Service Manual - Page 70
DV-NV70U/C DV-NC72U VCR MAIN PWB J SIDE A Symbol I DV-NC70U/C DV-NC72U H G F E D C B A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 84~85 - Sharp DV-NC70U | Service Manual - Page 71
DV-NV70U/C DV-NC72U VCR MAIN PWB J SIDE B I DV-NC70U/C DV-NC72U H G F E D C B A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 86~87 - Sharp DV-NC70U | Service Manual - Page 72
DV-NC70U/C DV-NC72U J - M E M O - I H G F E D C B A 1 2 3 4 5 6 7 8 9 10 88 - Sharp DV-NC70U | Service Manual - Page 73
Contact your nearest SHARP Parts Distributor. For location of SHARP Parts Distributor, Call Toll-free 1-IBE800-SHARP in CANADA: Contact SHARP Electronics of Canada 2SA1576A+ AB Ref. No. Part No. 5 Description DV-NC70U/C DV-NC72U Code Q3203 VS2SA1576A+-1 2SA1576A+ AB Q3204 VS2SA1576A+-1 - Sharp DV-NC70U | Service Manual - Page 74
DV-NC70U/C DV-NC72U Ref. No. Part No. 5 Description DUNTKB209TE6E DVD MAIN PWB UNIT(Continued) Code C3603 VCKYCY1CB104K 0.1 16V Ceramic AB C3604 VCKYCY1CB104K 0.1 16V Ceramic AB C3605 VCKYCY1CB104K 0.1 - Sharp DV-NC70U | Service Manual - Page 75
Oxide AA Metal Oxide AA Metal Oxide AA Metal Oxide AA Metal Oxide AA Metal Oxide AA Metal Oxide AA Ref. No. Part No. 5 Description DV-NC70U/C DV-NC72U Code R3623 R3624 R3625 R3626 R3627 R3628 R3629 R3630 R3631 R3632 R3633 R3634 R3635 R3636 R3637 R3638 R3640 R3641 R3643 R3644 R3701 R3705 R3706 - Sharp DV-NC70U | Service Manual - Page 76
DV-NC70U/C DV-NC72U Ref. No. Part No. 5 Description DUNTKB209TE6E DVD MAIN PWB UNIT(Continued) BALUNES FB3301 RBLN-0077TAZZ Balun, BLN-0077TA FB3302 RBLN-0061TAZZ Balun, BLN-0061TA - Sharp DV-NC70U | Service Manual - Page 77
+ 47 6.3V Electrolytic AB C302 VCKYCY1CF104ZS 0.1 16V Ceramic AA C303 VCKYCY1HB102KS 1000p 50V Ceramic AA Ref. No. Part No. 5 Description DV-NC70U/C DV-NC72U Code C304 VCKYCY1HB562KS 5600p 50V Ceramic AA C305 VCKYCY1HB562KS 5600p 50V Ceramic AA C306 VCKYCY1HB102KS 1000p 50V Ceramic AA - Sharp DV-NC70U | Service Manual - Page 78
DV-NC70U/C DV-NC72U Ref. No. Part No. 5 Description DUNTKB210TEV3 VCR MAIN PWB UNIT(Continued) Code C681 VCKYCY1HF103ZS 0.01 50V Ceramic AA C682 VCKYCY1CF104ZS 0.1 16V Ceramic AA C683 - Sharp DV-NC70U | Service Manual - Page 79
Oxide AA Metal Oxide AA Metal Oxide AA Metal Oxide AA Metal Oxide AA Metal Oxide AA Metal Oxide AA Ref. No. Part No. 5 Description DV-NC70U/C DV-NC72U Code R731 R732 R733 R735 R736 R737 R738 R739 R741 R742 R743 R744 R745 R746 R747 R748 R750 R751 R752 R753 R755 R756 R769 - Sharp DV-NC70U | Service Manual - Page 80
DV-NC70U/C DV-NC72U Ref. No. Part No. 5 Description DUNTKB210TEV3 VCR MAIN PWB UNIT(Continued) Code R1918 R1919 R1920 R1921 R1922 R1923 R1971 R2001 R2005 R2006 R2010 R2013 - Sharp DV-NC70U | Service Manual - Page 81
Jack, 3Pin AE J8002 QJAKE0257GEZZ Jack, 3Pin AE J8003 QJAKE0180CEZZ Jack, 3Pin AE Ref. No. Part No. 5 Description DV-NC70U/C DV-NC72U Code DUNTKB213TEV2 POWER PWB UNIT INTEGRATED CIRCUITS IC903 VHiMM1431AT-1+ MM1431AT AD IC908 VHiPQ30RV11-1 PQ30RV11, 1.8V AF IC909 VHiPQ15RW11 - Sharp DV-NC70U | Service Manual - Page 82
DV-NC70U/C DV-NC72U Ref. No. Part Cable AG AV Cable AK Remote Control Unit AV (NC70U/C) Remote Control Unit AV (NC72U) Guarantee Card(NC70U) AC Operation Manual AK (NC70U/72U) Operation Manual LX-BZ3434AJFD Mecha Chasis Ass'y BS Guide Axis Pressing AB Screw, x4 Relay Gear1 - Sharp DV-NC70U | Service Manual - Page 83
AB 18 MLEVP0347AJZZ Pinch Double Action Lever AC 19 MLEVP0344AJZZ Reverse Guide Lever Ass'y AE 20 MLEVP0342AJZZ Take-up Loading Link AB Screw 2.6+6S(CAPST), x3 AA Ref. No. Part No. 5 Description DV-NC70U/C DV-NC72U Code 205 LX-RZ3015GEFJ CS Washer, x2 AB 208 XRESJ30-06000 E-Ring - Sharp DV-NC70U | Service Manual - Page 84
DV-NC70U/C DV-NC72U Ref. No. Part No. 5 Description Code CABINET PARTS 2 CCABAA036TEV1 Top Cabinet Ass'y(NC70U) AV 2 CCABAA036TEV3 Top Cabinet Ass'y(NC70C) AV 2 CCABAA094TEV1 Top Cabinet Ass'y(NC72U) AW 2-1 TLABZA052WJZZ FCC Label(NC70U) AB 2-1 TLABZA081WJZZ FCC Label(NC72U) AB 21 - Sharp DV-NC70U | Service Manual - Page 85
Ref. NMo. ECHAPNartISNoM. EXP5 LODEDeDscVripIEtioWn (DVCDodPeART)Ref. No. Part No. 5 Description DV-NC70U/C DV-NC72U Code H Dry Coating 434 Dry Coating Dry Coating G 432 F 433 431 Grease 429 435 Dry Coating E 428 427 Grease 426 425 401-11 420 D - Sharp DV-NC70U | Service Manual - Page 86
DV-NC70U/C DV-NC72U Ref.MNoE.CHANPIaSrtMNo.EXPL5ODEDDeVscIrEipWtion(VCRCPodAeRT) Ref. No. Grease H 66 66 62 53 222 70 66 66 221 65 A 17 G 49 51 73 201 63 7 - Sharp DV-NC70U | Service Manual - Page 87
Ref.CNAo.SSETPTaErt NHoO. US5ING CODeNscTriRptiOonL EXPCLodOe DEDRVefI.ENWo. Grease H Part No. 5 Description DV-NC70U/C DV-NC72U Code G 300 301 F 302 E 306 D C B 304 317 308 314 A 314 305 312 309 315 313 303 A 307 310 311 A 1 2 3 4 5 6 103 - Sharp DV-NC70U | Service Manual - Page 88
DV-NC70U/C DV-NC72U Ref.CNAo.BINETPaErt XNoP. LOD5ED VIDEeWscription Code Ref. No. Part No. 5 Description Code 57 2 56 H 52 56 59 2-1 G 50 C D A E 50 C 49 49 56 49 - Sharp DV-NC70U | Service Manual - Page 89
Ref.FNRo.ONT PPaArtNNEo.L EX5PLODDEeDscrVipItiEonW Code Ref. No. Part No. 5 Description DV-NC70U/C DV-NC72U Code H G F E D 600-9 C 600-8 B 600-13 600 600-6 600-11 600-14 600-3 600-4 600-1 600-2 600-5 600-12 600-10 600-7 A 1 2 3 4 5 6 105 - Sharp DV-NC70U | Service Manual - Page 90
TGAN-3324AJZZ (DV-NC70U) (Guarantee Card) TiNS-A121WJZZ (DV-NC70U/72U) TiNS-A122WJZZ (DV-NC70C) (Operation Manual) 5 SPAKP0209AJZZ (Wrapping Paper) RRMCGA053WJSA (DV-NC70U/C) RRMCGA053WJSB (DV-NC72U) (Remote Control unit) QCNW-8387AJZZ (RF Cable) QCNW-8388AJZZ (AV Cable) 5 SPAKCA071WJZZ (DV-NC70U - Sharp DV-NC70U | Service Manual - Page 91
Ref. No. Part No. 5 Description Code Ref. No. Part No. 5 Description DV-NC70U/C DV-NC72U Code 107 - Sharp DV-NC70U | Service Manual - Page 92
DV-NC70U/C DV-NC72U Ref. No. Part No. 5 Description Code Ref. No. Part No. 5 Description Code COPYRIGHT © 2002 BY SHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means,
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DV-NC70U/C
DV-NC72U
S62K3DV-NC70U
SERVICE MANUAL
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-NC70U
DV-NC70C
DV-NC72U
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
OPEN/CLOSE
POWER
EJECT/STOP
REW
PLAY
REC
CH
VCR/DVD
SELECTOR
TIMER
VCR
DVD
PLAY
STOP
AV 2 IN
VIDEO L(MONO)-AUDIO-R
/
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. BLOCK DIAGRAMS
.........................................................................................................................
52
12. SCHEMATIC DIAGRAMS
................................................................................................................
60
13. PRINTED WIRING BOARD ASSEMBLIES
.....................................................................................
74
14. REPLACEMENT PARTS LIST
........................................................................................................
89
15. PACKING OF THE SET
.................................................................................................................
106