DV-NC55U/C/M SERVICE MANUAL S61U2DV-NC55U SERVICE MANUAL VCR/DVD COMBINATION MODEL REW POWER PLAY STOP PLAY EJECT/ STOP STANDBY / OPEN/ CLOSE VCR DVD (AV 1 ) CH(TRACKING) AV 2 IN VDEO L(MONO)-AUDIO-R MODELS DV-NC55U DV-NC55C DV-NC55M VCR/DVD COMBINATION MODEL In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified be used.
DV-NC55U/C/M 1. IMPORTANT SERVICE NOTES etc.) and measure the AC voltage drop across the resistor. Reverse the AC plug on the set and repeat AC voltage measurements for each exposed part. Any reading of 0.45V rms (this corresponds to 0.3mA rms AC.) or more is excessive and indicates a potential shock hazard which must be corrected before returning the VCR/DVD combination model to the owner.
DV-NC55U/C/M 1. NOTES DE SERVICE IMPORTANTES AVANT DE RENDRE LE VCR/DVD MAGNETOSCOPE Avant de rendre le magnétoscope à l’utilisateur, effectuer les vérifications de sécurité suivantes. pièces métalliques exposées ayant un parcours de retour au châssis (connexions d’antenne, coffret métallique, tétes de vis, boutons et arbres de commande, etc.) et mesurer la chute de tension CA entre la résistance.
DV-NC55U/C/M 2. FEATURES Ë Common Features • A DVD, CD player and VCR all in one. • Simultaneous VCR recording and DVD playback. Ë VCR • Hi-Fi Stereo Sound/Double-Azimuth 4-Heads • Built-in MTS (Multi-channel TV Sound) Decoder • 400 Times Rewind Speed to Fast Forward and Rewind.
DV-NC55U/C/M Channel Coverage: VHF 2-13 UHF 14-69 CATV 1-125 Antenna Input: 75Ω Video Input: Input level: 0.5 to 2.0 Vp-p (75Ω) Video Output: Output level: 1.0 Vp-p (75Ω) Audio Output: Input level: –8 dBs (47kΩ) (0 dBs = 0.775 Vrms) Audio Output: Output level: –8 dBs (1kΩ) (0 dBs = 0.775 Vrms) Hi-Fi Audio: Dynamic Range: 90 dB Frequency Response: 20 Hz-20 kHz Memory Backup: 60 seconds DVD DVD/VCR shared Video output: Output level: 1 Vp-p (75Ω) S video output: Y output level: 1 Vp-p (75Ω) C output level: 0.
/ EJECT/ STOP AV 2 IN VDEO L(MONO)-AUDIO-R POWER REW PLAY STANDBY 6 Operation status Indicator VCR Mode Indicator Tape Speeds Indicator Cassette-in Indicator Timer Recording Indicator TIMER REC SPEPVCR VCR Front Panel Display PLAY REW EJECT/STOP Front AUDIO/ VIDEO input jack POWER VCR Main Unit (Front) / Tape Counter Indicator Channel Indicator PLAY STOP , TRACKING Clock Indicator CH(TRACKING) CH / OPEN/ CLOSE Cassette compartment VCR DVD (AV 1 ) / EJECT/ STOP AV 2 IN VDEO
1 / / ) CANCEL / 7 Open the battery cover by pulling the lid in the direction of the arrow. Loading the 2 VCR/DVD CHANGE Switch TAPE SPEED CH / STOP REC PLAY REV 100, AM/PM Number buttons CURSOR ( ON SCREEN DISPLAY POWER TIMER ON/OFF TV/VCR EJECT DVD ±/—, DPSS 3 ±/— Close the battery cover by lowering the lid in the direction of the arrow.
DVD Coaxial DIGITAL output jack 8 DVD/VCR shared VIDEO output jack DVD AUDIO output jacks DVD S-VIDEO output jack To an AC outlet Main Unit (Rear) S-VIDEO L AUDIO R DIGITAL AUDIO AV 2 OUT DVD OUT DVD OUT R L AUDIO VIDEO L AUDIO R DVD/VCR AV 1 OUT S-VIDEO DIGITAL AUDIO AV 2 OUT DVD/VCR VIDEO VCR 3 4 OUTPUT CHANNEL 3 4 VCR VIDEO input jack ANTENA OUT 3 4 OUTPUT CHANNEL select UHF/VHF CATV OUT TO T V OUTPUT CHANNEL ANTENA IN (antena or cable input) VCR AUDIO input jacks
DV-NC55U/C/M 5. MAINTENANCE CHECK ITEMS AND EXECUTION TIME 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 Note Maintained 1,000 hrs. 2,000 hrs. : Part Replacement : Cleaning (For cleaning, use a lint-free cloth danpened with pure isopropyl alcohol.) CARES WHEN USING THE PICKUP 1.
DV-NC55U/C/M 6. DISASSEMBLY METHOD 6-1. DISASSEMBLY METHOD 1 2 1) Removing the cabinet. (1) Remove the five screws 1 and 2. 2) Removing the front panel. (1) Remove the earth plate. (2) Remove the three screws 3. (3) Remove the three hooks 4. 1 7 3 Shild Plate 6 3) Removing the front PWB. (1) Remove the shild plate. (2) Remove the four FFCs 5 and 6. (3) Release the two hooks 7 and tilt the PWB toward you to remove it. (4) Release the two hooks 8 and tilt the PWB toward you to remove it.
DV-NC55U/C/M (14)Remove the connector. (15)Remove the three screws g and h. Connector 26 25 5) Removing the cassette housing control/VTR mechanism. (1) Remove the two screws k. (2) Remove the two screws l. (3) Remove the one screw ;. (4) Remove the H/A shield case (upper) 31 . 28 31 29 30 6) Removing the terminal plate/VTR main PWB. (1) Remove the four screws 32 . (2) Remove the one screw 33 . 32 33 7) Removing the bottom plate. (1) Remove the six screws 34 .
DV-NC55U/C/M 6-2.
DV-NC55U/C/M 6-3. REPLACEMENT OF MAIN PARTS 1. Remove the mechanism with angle from the set (refer to 35 on page 140). 2. It is in such cases as the thin driver, and it is pushed in slowly, and a tray is drawn in the arrow direction the slide rack on the left of the base chassis. 3. Take out disk. Front Side 1. After setting the mechanism chassis to the angle state, ground it to prevent the electrostatic discharge damage of the pickup.
DV-NC55U/C/M 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. 7-3. POLARITIES OF SIGNAL 7-2.
DV-NC55U/C/M 8. ADJUSTMENT, REPLACEMENT AND ASSEMBLY OF MECHANICAL UNITS The explanation given below relates to the on-site general service (field service) but it does not relates to the adjustment and replacement which need high-grade equipment, jigs and skill. For example, the drum assembling, replacement and adjustment service must be performed by the person who have finished the technical courses. 8-1.
DV-NC55U/C/M 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. Possible symptom encountered Remarks Abnormal rotation or significant vibration requires replacement. Guide roller ass’y Sup guide shaft Lateral noises Head occasionally blocked Reverse guide Clean tape contact part with the specified cleaning liquid.
DV-NC55U/C/M 8-3. FUNCTION OF MAJOR MECHANICAL PARTS (TOP VIEW) 15 17 10 18 14 1 9 2 11 7 5 3 12 8 6 No. Function 16 13 4 No.
DV-NC55U/C/M FUNCTION OF MAJOR MECHANICAL PARTS (BOTTOM VIEW) 21 22 19 26 20 12 23 No. 24 Function No. Function 15 Upper and lower drum ass’y 22 Reel belt 16 Loading motor 23 Clutch lever 17 Drum drive motor 24 Limiter pulley ass’y 18 Take-up pole base ass’y 26 Shifter 19 Slow brake lever 20 Master cam 21 Capstan D.D.
DV-NC55U/C/M 8-4. DISASSEMBLING THE MECHANISM/MAIN PWB ASSEMBLY 1. When removing the mechanism from the main PWB. Remove the PWB bottom plate 1 screw 1. Remove the FFC cable (AA, AD, AH) 2 which connecting the PWB and the mechanism. Take out vertically the mechanism so that it does not damage the adjacent parts. 2. Removing the mechanism and cassette housing. Remove 2 screws 3 fixing the cassette housing to the mechanism, and remove the cassette housing.
DV-NC55U/C/M 8-5. CARES WHEN REASSEMBLING INSTALLING THE CASSETTE HOUSING When the cassette housing is installed on the mechanism, the initial setting is essential condition. There are two initial setting methods, namely electrical and mechanical. 1. Electrical initial setting So as to perform initial setting of mechanism execute the Step 1 of Installation of cassette housing. After ascertaining the return to the initial setting position (*1) install the cassette housing.
DV-NC55U/C/M 8-6. REMOVING AND INSTALLING THE CASSETTE HOUSING • Removal 1. In the cassette removing mode, remove the cassette. 2. Unplug the power cord. 3. Remove in the following numerical order. a) Remove two screws 1. b) Slide and pull up the cassette housing control. 1 Notes: 1. When fitting the S/E sensor holder to the cassette controller frame L/R, take care. 2. Misengagement of teeth of casecon drive gear and drive angle gear causes malfunction.
DV-NC55U/C/M 8-8. REEL DISK REPLACEMENT AND HEIGHT CHECK • 1. 2. 3. 4. Removal Remove the cassette housing control assembly. Pull the tension band out of the tension arm ass'y. Remove the Supply/Take-up main brake ass'y. Open the hook at the top of the reel disk, and remove the reel disk. Note: Take care so that the tension band ass'y and main brake ass'y (especially soft brake) are not deformed.
DV-NC55U/C/M 2. Whenever replacing the reel disk, perform the height checking and adjustment. Reel disk height adjusting jig Master plane 10 ± 0.2mm Mechanism chassis Reel disk 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 allow longtime measurement. 8-10.CHECKING AND ADJUSTMENT OF TAKEUP TORQUE IN REWIND MODE • Remove the cassette housing control assembly.
DV-NC55U/C/M 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 allow longtime measurement. 8-12.CHECKING AND ADJUSTMENT OF TAKEUP TORQUE IN VIDEO SEARCH REWIND MODE 8-11.CHECKING AND ADJUSTMENT OF TAKE-UP TORQUE IN RECORD/ PLAYBACK MODE • After short-circuiting between TP5102 and TP5103 provided goes left at VTR display PWB, plug in the power cord. • Remove the cassette housing control assembly.
DV-NC55U/C/M 8-13.CHECKING THE VIDEO SEARCH REWIND BACK TENSION • Remove the cassette housing control assembly. • After short-circuiting between TP5102 and TP5103 provided goes left at VTR display PWB, plug in the power cord. Tension gauge 900 - 1,200gf Pinch roller • Checking 1. After pressing the play button, press the rewind button, and set the video search rewind mode. 2.
DV-NC55U/C/M • 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 check to see if the right edge of the tension pole is within the 2.3 ± 0.25 from the right edge of the Sup guide shaft. Tension pole adjuster adjusting range Tension pole adjuster 90° Sup guide shaft Tension pole 90° 2.3 ± 0.25 Figure 8-18. Make the adjustment with the beginning of a T-120 tape.
DV-NC55U/C/M • Adjustment 1. If the indication of torque cassette meter is lower than the setting, shift the tension spring engagement to the 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 • Checking the brake torque at the take-up side Torque gauge Tension arm B CW CCW Take-up reel disk Tension spring Figure 8-20. CCW: 4.9~13.7mN⋅m (50~140gf⋅cm) CW: 3.9~10.8mN⋅m (40~110gf⋅cm) 8-17.
DV-NC55U/C/M 8-18. REPLACEMENT OF A/C (AUDIO/CONTROL) HEAD 1. Remove the cassette housing control assembly. 2. In unloading state unplug the power cord. • Removal 1. Remove the screws 123, Azimuth screw, Tilt screw. 2. Unsolder the PWB fitted to the A/C head. Notes: 1. When replacing, never touch the head. If you touched, clean with the cleaning liquid. 2. When removing the screw 3, take care so that the spring may out. 3.
DV-NC55U/C/M 8-19.A/C HEAD HEIGHT ROUGH ADJUSTMENT • Setting Azimuth screw 8-20.HEIGHT ADJUSTMENT OF REVERSE GUIDE 1. Adjust the height from the mechanism chassis to the reverse guide lower flange to 13.38 mm, using the reverse guide height adjustment jig, in tape loading state. (Refer to Figure 8-28 (a) (b).) Reverse guide Reverse guide height adjusting jig Height screw Reverse guide height adjusting jig Tilt screw Cassette tape Mechanism chassis 13.38mm (b) (a) Figure 8-28.
DV-NC55U/C/M 8-21. ADJUSTMENT OF TAPE DRIVE TRAIN 1. Tape run rough adjustment 1 Remove the cassette housing control assembly. 2 After short-circuiting between TP5102 and TP5103 provided goes left at VTR display PWB, plug in the power cord. 3 Check and adjust the position of the tension pole. (See 8-15.) 4 Check and adjust the video search rewind back tension. (See 8-13.) 5 Connect the oscilloscope to the test point for PB CHROMA signal output (TP1201). Set the synchronism of the oscilloscope to EXT.
DV-NC55U/C/M 3 Next, press the tracking button (+), (–) and change the ATR signal waveform from max 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 (JiGDRiVER-4) so that the ATR signal waveform changes nearly parallel. 4 If the tape is lifted or sunk from the helical lead surface, the PB CHROMA signal waveform appears as shown in Figure 8-35.
DV-NC55U/C/M 8-22.REPLACEMENT OF THE CAPSTAN D.D. (DIRECT DRIVE) MOTOR • Remove the mechanism from the main PWB (refer to 84 item 1 When removing the mechanism from the main PWB ). • Removal (Follow the order of indicated numbers.) 1. Remove the reel belt 1. 2. Remove the slow brake lever 2. 3. Remove the three screws 3. 1. Set the ejection mode. 2. Withdraw the main power plug from the socket. • 1. 2. 3. 4. 5. Removal (Perform in numerical order.) Disconnect the FFC cable 1. Unscrew the D.D.
DV-NC55U/C/M 8-24.REPLACING THE UPPER AND LOWER DRUM ASSEMBLY • Replacement (Perform in the numerical order) 1 Remove the motor as stated in 8-23 D.D. motor replacement. 2 Remove the drum earth brush ass’y 2. 3 Remove the drum base 3 from the upper and lower drum assembly 1. [Cares when replacing the drum] 1. Be careful so that the drum earth brush is not lost. 2. Do not touch directly the drum surface. 3. Fit gently the screwdriver to the screws. 4.
DV-NC55U/C/M 1Insert Reverse Guide Lever Ass’y Insert reverse guide lever ass'y 2 Insert pinch drive cam Align here. Turn the reverse guide lever assembly counterclockwise to the stopper. Fit the pinch drive cam so that the notch of pinch drive cam aligns with the dent of pinch drive lever assembly. Fit the pinch drive cam so that the notch of pinch drive lever assembly aligns with the half-round notch of chassis. Pinch drive lever ass'y Figure 8-42-1.
DV-NC55U/C/M 1. Make sure that the loading gear is at the Phase-Matching point 1 as shown below. 2. Install, paying attention to insert point 5 and release point 3. 3. For the phase matching at the insert point 1, see the Phase-Matching point 2 as shown below. 4. Finally fix the inserts 1 and 4. 8-26. INSTALLING THE SHIFTER Drum Capstan D.D. motor Reel pulley Phase-Matching point 2 (Bottom side of mechanism chassis) Figure 8-43.
DV-NC55U/C/M 8-27.INSTALLING THE MASTER CAM (AT REAR SIDE OF MECHANISM CHASSIS) 8-28. REPLACEMENT OF LOADING MOTOR • Removal 1. Make sure beforehand that the shifter is at the point as shown below. 2. Place the master cam in the position as shown below. E ring (XRESJ30-06000) Master cam Apply grease Apply grease Fully turn clockwise Fully turn counterclockwise Face the wide tooth side ward No grease Figure 8-45-1.
DV-NC55U/C/M 8-29. ASSEMBLY OF CASSETTE HOUSING 1. Drive Gear and R Drive angle ass’y MSPRT0381AJFJ Apply grease Apply grease Apply grease Figure 8-48. 2. Synchro Gear, Drive Gear L and Drive Gear R LANGF9592AJFW Top surface should be free from scratches or soil. Drive angle Drive gear R Frame Figure 8-49.
DV-NC55U/C/M 9. TEST MODE "NO DISC" state "F0" key input (Press the "play" key and the "stop" key for 5 seconds.) F0000000 00000000 The preparation date display of the program 10000000 ~~~~~~~~ (Last updata) The "playback" key of the remote controller is pushed. Model number display 10000001 00000552 (Model number) The "playback" key of the remote controller is pushed.
DV-NC55U/C/M From (1) "3" Key input DYNMIC TEST 30000000 00000000 Laser test mode "1" Key input The tray opens, the DVD laser is lit, spinning is performed and the sled moves to the outer periphery. LASER TEST 30000001 000000DD "1" Key input LASER TEST 30000001 000000CD The DVD laser goes out, the CD laser is lit, spinning is performed, and the sled moves to the outer periphery.
DV-NC55U/C/M From (2) Following playback, jump test mode "3" Key input PLAY TEST 30000001 00000000 Load a disc after the tray is opened. "Open/Close" Key input PLAY TEST DD000303 ~~~~~~~~ Following playback state (~~~~~~~~ is a sector ID) Pressing the keys on the remote control mentioned in the table below enables the test jump. Key Jump Key 1 -1 3 4 -102 6 7 -510 9 C -511 M 2 -765 Repeat 5 -766 A-B 8 -7000 Program Before skipping. -15000 After skipping.
No Check the PC 5V line. 41 0V 0.9V 1.8V 2.5V 3.3V Is key switch contact and installation state normal? Yes Is the control voltage normally into the pins(95) and (96) of IC504? The key operation is disabled. FLOW CHART NO.2 KEY-1/2 No No No No No No S5002 PLAY KEY–2 S5003 STOP KEY–1 OFF Replace key switch. Check that the fluorescent display tube is free from damages such as crack. Check the power circuit, D5004 and Q8203. Check or replace IC5001 and IC504.
Replace the main PWB unit. Yes See FLOW CHART NO.9 and NO.10. Set the disc on the disc tray. Yes Do you have loading done the disk by normality? Yes Is the level of RF signal which is output from pins(29), (30) of IC301, normal? Yes Both picture and sound do not operate normally.(1) FLOW CHART NO.8 Is the Q303(LD POWER CTL) drive output to the pin(46) of IC301? (Checking of symptom.) Yes Is 5V voltage applied to the emitter of Q303? Yes Is approx.
*1 Are the audio interface signals inputted to the pins of IC6004? IC6004 3PIN L OUT IC6004 5PIN R OUT Yes Are the audio interface signals outputted to the pins of IC6004? IC6004 1PIN L OUT IC6004 4PIN R OUT Yes Set the disc on the disc tray.
NO NO NO NO NO NO NO Operation is possible from the VCR, but no operation is possible from the infrared remote control. YES Is the supply voltage of 5V feed to pin(3) terminal of remote control receiver? YES Is "L" pulse sent out pin(1) terminal of receiver when the infrared remote control is activated? YES Is inputted "L" pulse to pin(5) of IC1701? YES Replace IC1701. NO NO NO No operation is possible from the infrared remote control. FLOW CHART NO.
Is the voltage more than about 2.6V DC given out of pin(29) of IC1701. YES Is the supply voltage of 5V feed to pin(8) of AC connector? YES Is the voltage more than 2.6V DC sent in pin(4) of AC connector? YES Is approx. 3.5V applied to the pin(3) of the AC connector? YES Is 23V applied to the pin(5) of the AC connector normally? YES Replace capstan motor. The capstan motor fails to run. FLOW CHART NO.
NO YES NO Replace A/C head. YES YES Does A/C head operate normally? Does AA-MH harness normally? NO Does PB CTL signal appear at pin(76) of IC1701 (TP1201)? 1Only PB mode inoperative FLOW CHART NO.13 NO NO NO NO Capstan servo does not function. Check peripheral circuit of C1770-1 and R1770. Readjust the A/C head height. Replace AA-MH harness. NO Replace IC1701. YES Is there capstan AFC and APC at pins(31) and (33) of IC1701? Check capstan motor unit and/or replace.
Check the pins(13) and (14) of IC1201 peripheral circuit. (R1201, R1202, C1203) Check between the pins(24) and (23) of IC1201. (Check C1210.) Is CCD control voltage approx. 5V applied normally to the pin(37) from the pin(57) of IC1201? Is clock signal (approx. 7.16 MHz/ 0.5 Vp-p) for CCD applied normally to the pin(44) from the pin(69) of IC1201? YES Is voltage 5V applied to the CCD section power terminal pin(36) of IC1201? NO Is luminance signal (approx. 0.
NO NO 48 Replace IC1201. Is luminance signal (approx. 0.5 NO Vp-p) input to the pin(23) of IC1201? YES YES NO Is luminance signal (approx. 0.5 Vp-p) input to the pin(19) of IC1201? YES NO Is luminance signal (approx. 0.3 Vp-p) input to the pin(42) of IC1201? YES NO Is luminance signal (approx. 0.5 Vp-p) input to the pin(26) of IC1201? Is the luminance signal (approx. 0.25 Vp-p) input and output to the pins(13), (14) and (16) of IC1201, respectively? YES Is FM signal (approx. 0.
Check the AUDIO OUT terminal (J1202) and the line between the pins(7) and (1) of IC6011 and the AUDIO OUT terminal (J1202).
NO NO 50 Check the circuit and replace parts. (D905, D9006, Q902, etc.) Check the circuit and replace parts.(D905, D9006, etc.) Check for short-circuiting of rectifying diode and circuit in each rectifying circuit of secondary circuit. (D9001, D9003-5, D9010-11) Case (2) Check the power failure circuit. (Q1705) Check each rectifier circuits and short-circuit of secondary circuit. Check for leak or short-circuiting of primary circuit part.(L901, D901, T901, Q901-902, etc.
YES 51 Is 5V voltage supplied at emitter of Q9054? YES Is voltage of 5V sent out from the collector of Q9054? NO Check the Q9054 periphery circuit. YES Does the P-CON switch circuit is operate normally? (Q9056-7, D9054, D9053, etc.) YES Are the "H" pulse inputted into the pin(9) of IC8201? YES Replace IC8201. PC 5V is not output. FLOW CHART NO.
DV-NC55U/C/M 11. IC FUNCTION LIST 11-1. IC301 TA1323F Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 RF PROCESSOR Terminal name GND P2TP P2TN LDO2 MDI2 VrD Vrfil Vdd DPAC DPBD DPD1 DPD2 SCB SCL SCD VRCK I/O – I I O I O – I – – – – I I I I Operation function GND terminal.
DV-NC55U/C/M TEB P1TP • Block Diagram FEB A input (CD) B input (CD) C input (CD) D input (CD) GND terminal (Servo) FE+input (CD) FE–input (CD) DPDB I I I I – I I Vcc2 P2AI P2BI P2CI P2DI GNDS P2FP P2FN NC 58 59 60 61 62 63 64 NC D input (DVD) C input (DVD) B input (DVD) A input (DVD) GND terminal (RF) APC polarity 2 GND2 I I I I – I TCC1 P1DI P1CI P1BI P1AI GNDR LDP2 VrA 52 53 54 55 56 57 EQF Monitor input 1 Drive output 1 TE–input (DVD) TE+input (DVD) FE–input (DVD) FE+input (DVD) APC
DV-NC55U/C/M 11-2. IC501 IX1689GE Pin No. Symbol 45 DQ15/A-1 25-18, 8-4 A0-A12 3-1, 48, 16, 17 29, 31, 33, 35, 38, 40, 42, 44 30, 32, 34, 36, 39, 41, 43, 45 DQ8-DQ14 26 CE# 12 RP# 28 OE# 11 WR# 14 WP# 15 RY/BY# 47 BYTE# 13 37 27, 46 9, 10 Vpp Vcc GND NC A13-A18 DQ0-DQ7 FLASH MEMORY Type Name and function Byte selection address: When the device is in the x8 mode, the low or high order byte is Input selected. It is not used in the x16 mode.
DV-NC55U/C/M • Block Diagram DQ8-14 DQ0-7 Output Buffer Output Buffer Input Buffer Input Buffer OUTPUT MULTIPLEXER I/O Logic BYTE# DATA QUEUE REGISTER ID Register CSR Register CE# ESRs CUI A-1.0~18 OE# Data Comparator WR# RP# Input Buffer Y-DECODER Y GATING/SENSING WSM 16-KBYTE Block 31 16-KBYTE Block 30 16-KBYTE Block 1 X-DECODER 16-KBYTE Block 0 RY/BY# ADDRESS QUEUE LATCHES Program Erase Voltage Switch VCC GND ADDRESS COUNTER 11-3.
DV-NC55U/C/M 11-4. IC504 IX1687GE MICRO COM.
DV-NC55U/C/M 11-5. IC508 IX1761GE Pin No.
DV-NC55U/C/M Pin No.
DV-NC55U/C/M VDD2 PDI[8] PDI[7] PDI[6] PDI[5] PDI[4] PDI[3] PDI[2] PDI[1] VSS PDI[0] VSS VDD1 VDD2 5VBUS[7] 5VBUS[6] 5VBUS[5] 5VBUS[4] 5VBUS[3] 5VBUS[2] 5VBUS[1] NC 5VBUS[0] NC VSS • Block Diagram 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 VDD1 76 5VBUFO[B] 77 5VBUFI[B] IPD Interface 78 50 VSS 49 PSYCI 48 PDRQI 47 5VBUFO[A] 79 PDCKI Timing Gen.
DV-NC55U/C/M 11-6. IC601 IX1720GE AV DECODER • Terminal description Name Type Description Host interface, CD-DSP interface, sub-code interface (32-pin) Reset input (active Low). When shifting from the assert state to deassert state, RESET# ID initialization process of this device is started. Stand-by input (active Low). When asserting with RESET#, all of output pins and bidirectional pins enter the float state, and this device is electrically separated from STANDBY# ID periphery.
DV-NC55U/C/M Name Type Description Host interface, CD-DSP interface, sub-code interface (32-pin)...continued Host ready output (active High). Use this signal when the stream is transferred via the host bus. External pull-up resistor is required. Prior to transfer of each packet (1 HRDY O(p.d.) packet: length in CodBurstLen bytes), make sure that this signal is in the active state, and then bit streams of CodBurstLen byte long or shorter can be written on this device consecutively.
DV-NC55U/C/M Name Type Digital audio port (8-pin) Description AMCLK I/O(p.u.) Audio master clock I/O. Sampling frequency can be selected among 384fs, 256fs, 192fs, and 128fs (programmable). S/PDIF (AOUT[3]) O(p.d.) S/PDIF transmitter output. It can be connected to DAC as the fourth audio output (AOUT [3]). After resetting, this pin outputs the low-level signal. AOUT[2:0] O(p.d.) Serial output of PCM stereo audio for DAC. After resetting, this pin outputs the lowlevel signal. AIN I ALRCLK O(p.
DV-NC55U/C/M 90 100 80 130 70 TOP VIEW 140 60 150 50 40 30 20 10 1 160 HORD HWID VDDP HTYPE HD15/CDERR HD14/CDFRM HD13/CDDAT HD12/CDCLK HD11/TCK GNDP HD10/TMS VDDC HD9/TDO GNDC HD8/TDI VDDP HD7 HD6 VDDIP HD5 HD4 HD3 HD2 HD1 HD0 VDDP HA3 HA2 HA1 HA0 HWR#/HDS# HCS# VDDC HRD#/HDS# GNDC HRDY HIRQ# VDDP HACK# GNDP VDDA STNDBY# GNDA RESET# SCNENBL VDDP VCLKx2 GNDP TESTMODE VDDAAM AMCLK GNDAAM S/PDIF/AOUT3 GPIO VDDP AOUT0 AOUT1 AOUT2 ALRCLK VDDP ABCLK VDDC GPSO GNDC GPSI GNDP DVDERR DVDSOS DVDVAL
DV-NC55U/C/M 11-7. IC602-3 IX3455CE 16M SDRAM Pin No. 35 34 18 19 20~24 27~32 17, 16, 15 Terminal Name CLK Clock Name CKE Clock Enable CS BS A0~A10 Chip Select Bank Address Address Input Function The system clock input. All other inputs are referenced to the SDRAM on the rising edge of CLK. Controls internal clock signal and when deactivated, the SDRAM will be one of the states among power down, suspend or self refresh.
DV-NC55U/C/M 11-8. IC701 TC94A03F Pin No.
DV-NC55U/C/M Pin No.
DV-NC55U/C/M Pin No.
DV-NC55U/C/M Pin No. Terminal Name In/Output 156 EXTAD Input 157 VREF – 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 FOO TRO AVDD AWCTL FMO DMO TEBC FEBC DPDC EQBC ANMON /DFCT VRCK VSS3 SCD SCL SCB FGIN Output Output – Output Output Output Output Output Output Output Output Output Output – Output Output Output Input 176 ASLCP Output Operation function General-purpose external ADC input Reference power supply for analog system only: 1.
DV-NC55U/C/M 11-9. IC702 IX3420CE 4M EDO DRAM Terminal Terminal name 16-19, 22-26 A0-A8 Address inputs. Function 14 RAS Row address strobe. 28 UCAS Column address strobe/upper byte control. 29 LCAS Column address strobe/lower byte control. 13 WE Write enable. 27 OE Output enable. 2-5, 7-10 DQ1-DQ16 Data inputs/outputs. VCC +3.3V power supply. 21, 35, 40 VSS 0V ground. 11-12, 15, 30 NC No connection.
DV-NC55U/C/M 11-10. IC5001 PT6312LQ FL DRIVER Pin No. 1-4 5 Terminal name SW1 to SW4 DOUT I/O I O 6 DIN I 7, 43 8 GND CLK – I 9 STB I 10-13 K1 to K4 I 14, 38 15-20 VDD SG1/KS1 to SG6/KS6 SG7 to SG11 SG12/GR11 SG13/GR10 to SG16/GR7 VEE GR6 to GR1 LED1 to LED4 OSC – O 21-25 26, 28-31 27 32-37 42-39 44 O Operation function General purpose input pins Data output pin (N-Channel, Open-Drain) This pin outputs serial data at the falling edge of the shift clock (starting from the lower bit).
DV-NC55U/C/M 11-11. IC6001 PCM1737 AUDIO DAC Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Terminal name LRCK DATA BCK CLKO SCLK DGND VDD TEST1 TEST2 VCCR AGNDR VCOMR VOUTR AGND VCC VOUTL VCOML AGNDL VCCL NA NA RST ZEROL ZEROR MDO MDI MC ML I/O I I I O I – – I I – – – O – – O – – – I I I O O O I I I Operation function LRCK clock input (fs) (1) Audio • Data input (1) Bit clock input for data. (1) System clock buffered output. System clock input. Digital ground.
DV-NC55U/C/M 11-12. IC7701 BA5984FP Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Terminal name LD-FWD SL_IN(+) SL_IN(-) SLOUT SP_IN(+) SP_IN(-) SP_OUT VCC LD(-) LD(+) SPIN(-) SPIN(+) SL(-) SL(+) MOTOR DRIVER Operation function Pin No.
DV-NC55U/C/M 11-13. IC8201 IX1757GE INTERFACE MICOM. • Terminal description Pin No. Terminal Name In/Output 1 2 TRAY ACK(L) DVD LED(L) Input Output 3 DUB LED(L) Output 4 STANDBY LED(L) Output Operation function Input terminal of [TRAY ACK] from DVD microcomputer DVD LED control terminal It outputs [L] and is lit during DVD output. VTR ← DVD LED control terminal It outputs [L] and is lit in VTR ← DVD mode. Stand-by LED control terminal It outputs [L] and is lit during stand-by. IC test terminal.
RESET XOUT XIN SYSCLK CLK GEAR, TBT fs fc 74 ROM 16KB RAM 512B CPU STANDBY CONTROLLER OSC LOW FREQ OSC HIGH FREQ OSC DVO WDT TI0, TI1 TO0 ch. 0 Port 3 P37~P30 P17~P10 A8~A15 SCK, SI, SO P07~P00 Port 09 AD0~7 EXTERNAL BUS CONTROLLER SERIAL INTERFACE ch. 1 RXD, TXD Port 4 P47~P40 UART ch. 0 RD, WR, ALE, WAIT, CLK ch.
DV-NC55U/C/M -MEMO- 75
DV-NC55U/C/M DV-NC55U/C/M 12. BLOCK DIAGRAMS 12-1.
DV-NC55U/C/M DV-NC55U/C/M 12-2.
DV-NC55U/C/M DV-NC55U/C/M 12-3.
DV-NC55U/C/M DV-NC55U/C/M 12-4.
DV-NC55U/C/M DV-NC55U/C/M 13. SCHEMATIC DIAGRAMS 13-1.
DV-NC55U/C/M DV-NC55U/C/M 13-2.
DV-NC55U/C/M 13-3.
DV-NC55U/C/M 13-4.
DV-NC55U/C/M DV-NC55U/C/M 13-5.
DV-NC55U/C/M DV-NC55U/C/M å AND SHADED COMPONENTS=SAFETY RELATED PARTS 13-6.
DV-NC55U/C/M DV-NC55U/C/M 13-7.
DV-NC55U/C/M DV-NC55U/C/M 13-8.
DV-NC55U/C/M DV-NC55U/C/M å AND SHADED COMPONENTS=SAFETY RELATED PARTS 13-9.
DV-NC55U/C/M DV-NC55U/C/M 13-10.
DV-NC55U/C/M 14.
DV-NC55U/C/M Wiring Side SIDE A J I H G F E D C B A 10 1 11 2 12 3 13 4 14 5 15 6 103 16 7 17 8 18 9 19 10
DV-NC55U/C/M Component Side SIDE B J Q304 I R7734 C331 FB301 R322 R314 C307 CN302 R769 R767 R707 C305 R310 Q701 C706 R708 C709 C710 C740 IC705 R745 R704 R746 C703 R743 R748 R705 C704 R750 R749 C743 R753 R752 C745 C701 R706 C746 C747 R756 CN703 R759 R757 C748 R758 C749 R760 C739 R744 R747 R751 R755 C312 C744 R754 R320 FL701 R741 C741 C742 R318 C738 R742 C702 R721 Q303 C737 R739 R701 R723 C733 C311 G R737 R740 R702 C718 C732 R738
DV-NC55U/C/M Wiring Side SIDE B J I H G F E D C B A 10 1 11 2 12 3 13 4 14 5 15 6 105 16 7 17 8 18 9 19 10
DV-NC55U/C/M VTR DISPLAY PWB Component Side SIDE A J I H Wiring Side SIDE A G F Component Side SIDE B E D C Wiring Side SIDE B B A 1 2 3 4 5 6 106 7 8 9 10
DV-NC55U/C/M DVD DISPLAY PWB Component Side SIDE A J I H Wiring Side SIDE A G F Component Side SIDE B E D C Wiring Side SIDE B B A 10 1 11 2 12 3 13 4 14 5 15 6 107 16 7 17 8 18 9 19 10
DV-NC55U/C/M AUDIO/VIDEO PWB Component Side SIDE A J I H G F Wiring Side SIDE A E D C B A 1 2 3 4 5 6 108 7 8 9 10
DV-NC55U/C/M Component Side SIDE B J I H G F Wiring Side SIDE B E D C B A 10 1 11 2 12 3 13 4 14 5 15 6 109 16 7 17 8 18 9 19 10
DV-NC55U/C/M POWER PWB Component Side SIDE A J I H G F Wiring Side SIDE A E D C B A 1 2 3 4 5 6 110 7 8 9 10
DV-NC55U/C/M Component Side SIDE B J I H G F Wiring Side SIDE B E D C B A 10 1 11 2 12 3 13 4 14 5 15 6 111 16 7 17 8 18 9 19 10
DV-NC55U/C/M INTERFACE PWB Component Side SIDE A J I H G F Wiring Side SIDE A E D C B A 1 2 3 4 5 6 112 7 8 9 10
DV-NC55U/C/M Component Side SIDE B J I H G F Wiring Side SIDE B E D C B A 10 1 11 2 12 3 13 4 14 5 15 6 113 16 7 17 8 18 9 19 10
DV-NC55U/C/M DV-NC55U/C/M VTR MAIN PWB Component Side SIDE A J I H G F E D C B A 1 2 3 4 5 6 7 8 9 10 11 114~115 12 13 14 15 16 17 18 19 20
DV-NC55U/C/M DV-NC55U/C/M Wiring Side SIDE A J I H G F E D C B A 1 2 3 4 5 6 7 8 9 10 11 116~117 12 13 14 15 16 17 18 19 20
DV-NC55U/C/M DV-NC55U/C/M Component Side SIDE B J I H G F E D C B A 1 2 3 4 5 6 7 8 9 10 11 118~119 12 13 14 15 16 17 18 19 20
DV-NC55U/C/M DV-NC55U/C/M Wiring Side SIDE B J I H G F E D C B A 1 2 3 4 5 6 7 8 9 10 11 120~121 12 13 14 15 16 17 18 19 20
DV-NC55U/C/M -MEMO- J I H G F E D C B A 1 2 3 4 5 6 122 7 8 9 10
DV-NC55U/C/M 15.REPLACEMENT PARTS LIST/ Part No. ★ Description Code EXPLODED VIEWS Ref. No. ELECTRICAL PARTS LIST Parts marked with " å " are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the safety and performance of the set. Les pièces marquéss " å " sont importantes pour maintenir la sècurité de l'appareil.
DV-NC55U/C/M Ref. No. Part No. ★ Description Code Ref. No.
DV-NC55U/C/M Ref. No. Part No.
DV-NC55U/C/M Ref. No. ★ Part No. Description Code Ref. No. DUNTK6054TE6D DVD MAIN PWB UNIT(Continued) R814 R815 R816 R817 R818 R819 RBLN-0076TAZZ RBLN-0076TAZZ RBLN-0076TAZZ RBLN-0076TAZZ RBLN-0076TAZZ RBLN-0076TAZZ Balun, BLN-0076TA Balun, BLN-0076TA Balun, BLN-0076TA Balun, BLN-0076TA Balun, BLN-0076TA Balun, BLN-0076TA ★ Part No.
DV-NC55U/C/M Ref. No. ★ Part No.
DV-NC55U/C/M Ref. No. Part No. ★ Description Code DDUNTK6058TEV2 AUDIO/VIDEO PWB UNIT(Continued) Ref. No. ★ Part No.
DV-NC55U/C/M Ref. No. ★ Part No. Description Code DUNTK6059TEV2 POWER PWB UNIT(Continued) R9070 R9071 R9072 R9073 R9074 R9075 R9076 R9077 R9078 VRS-CY1JF123J VRS-CY1JF222F VRD-RA2BE471J VRS-CY1JF103J VRD-RA2BE471J VRS-CY1JF103J VRD-RA2BE471J VRS-CY1JF103J VRD-RA2BE472J 12k 2.2k 470 10k 470 10k 470 10k 4.
DV-NC55U/C/M Ref. No. ★ Part No. Description Code Ref. No.
DV-NC55U/C/M Ref. No. Part No.
DV-NC55U/C/M Ref. No. Part No. ★ Description Code Ref. No.
DV-NC55U/C/M Ref. No. Part No.
DV-NC55U/C/M Ref. No. ★ Part No. Description Code Ref. No.
DV-NC55U/C/M Ref. No. Part No. ★ Description Code Ref. No.
DV-NC55U/C/M Ref. No. Part No. ★ Description Code Ref. No.
DV-NC55U/C/M MECHANISM EXPLODED VIEW (DVD PART) Ref. No. Part No. ★ Description Code Ref. No. ★ Part No. Description Dry Coating H Dry Coating Dry Coating 434 G 429 432 F Dry Coating 433 431 Grease 435 Grease 428 E 427 425 426 401-11 401-13 420 401-10 424 D Grease Grease 401-4 401-12 401-3 401-2 422 423 409 421 C Grease 419 418 401-5 410 409 409 B å Caution When touching the pickup, wear an earth band to prevent breakage by static electricity.
DV-NC55U/C/M MECHANISM Ref. No. Part No. EXPLODED VIEW (VTR PART)Ref. No. ★ Description Code ★ Part No.
DV-NC55U/C/M CASSETTE Ref. No. PartHOUSING No. ★ CONTROL VIEW Description EXPLODED Code Ref. No. ★ Part No.
DV-NC55U/C/M CABINET EXPLODED VIEW Ref. No. Part No. ★ Description Ref. No. Code ★ Part No.
DV-NC55U/C/M FRONT Ref. No. PANEL VIEW Part No. EXPLODED ★ Description Code Ref. No. ★ Part No.
DV-NC55U/C/M 16. PACKING SET Part No. OF THE ★ Description Ref. No. Code Ref. No. TGAN-3324AJZZ(DV-NC55U) (Guarantee Card) TLSTS0022TAZZ(DV-NC55C) (Ass List) TiNS-4012AJZZ(DV-NC55U) TiNS-4034AJZZ(DV-NC55C) (Operation Manual) Part No. ★ Description Code ★SSAKA0001AJZZ (DV-NC55U/C) (Polyethylene Bag) RRMCG1293AJSA (Remote Control unit) ★SPAKP0209AJZZ (Wrapping Paper) QCNW-8387AJZZ (75 Ohm Coaxial Cable) QCNW-8549AJZZ (VIDEO/AUDIO Cable) ★SPAKX1010AJZZ (Packing Add.) ★SPAKX1010AJZZ (Packing Add.
DV-NC55U/C/M Ref. No. Part No. ★ Description Code 143 Ref. No. Part No.
DV-NC55U/C/M Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code COPYRIGHT © 2001 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, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.
