Service Manual
Page 5
...; 3 11/16" × 14 1/32") 4.8 kg (10.6 lbs) Specifications 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
...; 3 11/16" × 14 1/32") 4.8 kg (10.6 lbs) Specifications 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
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...
... 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...
Service Manual
Page 14
...high-frequency convolution imposes the high-frequency signal on the DC current to impose the high frequency on the track by voltage input.) 7-4-5. DV-NC70U/C DV-NC72U 7. VA + - Thus, the interference of light reduces. (IC301 is increased if the current of the monitor diode increases ... signal drives the tracking servo mechanism which flows into the monitor diode output (PD). SIGNALS OF PICKUP 20 VC 1 7-4-1. The following signals flow through the cable. 7-2. TR+ FO- VD + Vref Vcc GND HOLOGRAM LASER UNIT Power adjust 1 TR- 2 FO+ 3 TR+ 4 FO- 5 VR 6 PD 7 VCC 8...
...high-frequency convolution imposes the high-frequency signal on the DC current to impose the high frequency on the track by voltage input.) 7-4-5. DV-NC70U/C DV-NC72U 7. VA + - Thus, the interference of light reduces. (IC301 is increased if the current of the monitor diode increases ... signal drives the tracking servo mechanism which flows into the monitor diode output (PD). SIGNALS OF PICKUP 20 VC 1 7-4-1. The following signals flow through the cable. 7-2. TR+ FO- VD + Vref Vcc GND HOLOGRAM LASER UNIT Power adjust 1 TR- 2 FO+ 3 TR+ 4 FO- 5 VR 6 PD 7 VCC 8...
Service Manual
Page 32
... Unsolder loading motor wire and drum FFC. 2. After installing the capstan D.D. motor, be sure to lose it. 2. rotor assembly 5. DV-NC70U/C DV-NC72U 8-20 REPLACEMENT OF THE CAPSTAN D.D. (DIRECT DRIVE) MOTOR • Remove the mechanism from the set its position on the mechanism...for adjustment of indicated numbers.) 1. Adjust the A/C head and azimuth as stated in 8-19 item 2. 8-21 REPLACEMENT OF DRUM D.D. Disconnect the FFC cable 1. 2. Unscrew the Drum D.D. stator assembly fixing screws 2. 3. Take out the Drum D.D. stator assembly 3. 4. Unscrew the Drum D.D. Notes: 1....
... Unsolder loading motor wire and drum FFC. 2. After installing the capstan D.D. motor, be sure to lose it. 2. rotor assembly 5. DV-NC70U/C DV-NC72U 8-20 REPLACEMENT OF THE CAPSTAN D.D. (DIRECT DRIVE) MOTOR • Remove the mechanism from the set its position on the mechanism...for adjustment of indicated numbers.) 1. Adjust the A/C head and azimuth as stated in 8-19 item 2. 8-21 REPLACEMENT OF DRUM D.D. Disconnect the FFC cable 1. 2. Unscrew the Drum D.D. stator assembly fixing screws 2. 3. Take out the Drum D.D. stator assembly 3. 4. Unscrew the Drum D.D. Notes: 1....
Service Manual
Page 48
... STOP KEY-1 SW8052 PLAY KEY-2 FLOW CHART NO.3 No operation is set? Yes No Is 5V voltage supplied to the No terminal of optical pickup cable. Check AT 5V line. No Yes Is loading motor drive voltage outputted from pin(1) terminal of IC3704? Yes Is there input signal on pin(41... the optical pickup. Yes No Is pulse signal supplied to pin Check the pins(38) and (39) of IC8051 and their (38), (39) of IC3701? DV-NC70U/C DV-NC72U 48 (DVD) FLOW CHART NO.1 The fluorescent display tube does not light. Yes Check the signal lines of LCD RESET, LCD CS, No LCD...
... STOP KEY-1 SW8052 PLAY KEY-2 FLOW CHART NO.3 No operation is set? Yes No Is 5V voltage supplied to the No terminal of optical pickup cable. Check AT 5V line. No Yes Is loading motor drive voltage outputted from pin(1) terminal of IC3704? Yes Is there input signal on pin(41... the optical pickup. Yes No Is pulse signal supplied to pin Check the pins(38) and (39) of IC8051 and their (38), (39) of IC3701? DV-NC70U/C DV-NC72U 48 (DVD) FLOW CHART NO.1 The fluorescent display tube does not light. Yes Check the signal lines of LCD RESET, LCD CS, No LCD...
Service Manual
Page 49
...traverse chassis unit. Note: Since the laser diode is normal, replace the traverse chassis unit. Yes Check the pin(21) of optical pickup cable. Check the loading switch. No Check or replace IC3301. If it is very susceptible to static electricity, be careful of static electricity or... the focus control signal outputted to the emitter of Q3303? Yes Is the focus control signal from the measuring equipment when confirming the voltage. DV-NC70U/C DV-NC72U 49 Is the focus control drive voltage applied to the pins(1) and (13) of IC3704? Check the S 5V line. Note: ...
...traverse chassis unit. Note: Since the laser diode is normal, replace the traverse chassis unit. Yes Check the pin(21) of optical pickup cable. Check the loading switch. No Check or replace IC3301. If it is very susceptible to static electricity, be careful of static electricity or... the focus control signal outputted to the emitter of Q3303? Yes Is the focus control signal from the measuring equipment when confirming the voltage. DV-NC70U/C DV-NC72U 49 Is the focus control drive voltage applied to the pins(1) and (13) of IC3704? Check the S 5V line. Note: ...
Service Manual
Page 82
... No. 5 Description Code SUPPLIED ACCESSORIES QCNW-8387AJZZ QCNW-8388AJZZ RRMCGA053WJSA RRMCGA053WJSB TGAN-3324AJZZ TiNS-A121WJZZ TiNS-A122WJZZ RF 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 AP (NC70C) PACKING PARTS (NOT REPLACEMENT ITEM) SPAKCA071WJZZ Packing Case AP... AC Tray Pinion AC Base Chassis AL Disc Clamper AF York Washer AB Clamper Magnet AF Tray AH Loading Motor Fixing AB Screw, x2 98 DV-NC70U/C DV-NC72U Ref.
... No. 5 Description Code SUPPLIED ACCESSORIES QCNW-8387AJZZ QCNW-8388AJZZ RRMCGA053WJSA RRMCGA053WJSB TGAN-3324AJZZ TiNS-A121WJZZ TiNS-A122WJZZ RF 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 AP (NC70C) PACKING PARTS (NOT REPLACEMENT ITEM) SPAKCA071WJZZ Packing Case AP... AC Tray Pinion AC Base Chassis AL Disc Clamper AF York Washer AB Clamper Magnet AF Tray AH Loading Motor Fixing AB Screw, x2 98 DV-NC70U/C DV-NC72U Ref.
Service Manual
Page 90
... NOo. Part No. 5 Description Code 5 SSAKA0001AJZZ (Operation Manual Polyethylene Bag) 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/C) SPAKCA122WJZZ (DV-NC72U) (Packing Case) 5 SPAKXA023WJZZ (Packing Add.) 5 TLABV0182AJZZ (No. Label) 5 Not Replacement...
... NOo. Part No. 5 Description Code 5 SSAKA0001AJZZ (Operation Manual Polyethylene Bag) 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/C) SPAKCA122WJZZ (DV-NC72U) (Packing Case) 5 SPAKXA023WJZZ (Packing Add.) 5 TLABV0182AJZZ (No. Label) 5 Not Replacement...