Denon DVM-1805 Service Manual
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Denon DVM-1805 Service Manual

Denon DVM-1805 Service Manual

Dvd video auto changer
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3 7 63 1515 0
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L 13942296513
Some illustrations using in this service manual are slightly different from the actual set.
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http://www.xiaoyu163.com
SERVICE MANUAL
MODEL
DVD VIDEO AUTO CHANGER
x
ao
y
16-11, YUSHIMA 3-CHOME, BUNKYOU-KU, TOKYO 113-0034 JAPAN
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http://www.xiaoyu163.com
8
DVM-1805
Q Q
3
6 7
1 3
u163
Telephone: 03 (3837) 5321
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2 9
9 4
2 8
For U.S.A & Canada model
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0 5
8
2 9
9 4
m
co
9 9
2 8
9 9
X0158 NC 0209

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Summary of Contents for Denon DVM-1805

  • Page 1 3 7 63 1515 0 For U.S.A & Canada model SERVICE MANUAL DVM-1805 MODEL DVD VIDEO AUTO CHANGER L 13942296513 Some illustrations using in this service manual are slightly different from the actual set. u163 16-11, YUSHIMA 3-CHOME, BUNKYOU-KU, TOKYO 113-0034 JAPAN...

  • Page 2: Table Of Contents

    http://www.xiaoyu163.com 3 7 63 1515 0 TABLE OF CONTENTS SPECIFICATIONS ............... . . 3 LASER BEAM SAFETY PRECAUTIONS .

  • Page 3: Specifications

    http://www.xiaoyu163.com SPECIFICATIONS 3 7 63 1515 0 ITEM CONDITIONS UNIT NOMINAL LIMIT 1. Video Output 75 ohm load 2. Optical Digital Out 3. Audio (PCM) 3-1. Output Level 1kHz 0dB Vrms 3-2. S/N 3-3. Freq. Response fs=48kHz 20~22kHz ± 2 fs=44.1kHz 20~20 kHz ±...

  • Page 4: Laser Beam Safety Precautions

    http://www.xiaoyu163.com LASER BEAM SAFETY PRECAUTIONS 3 7 63 1515 0 This DVD player uses a pickup that emits a laser beam. Do not look directly at the laser beam coming from the pickup or allow it to strike against your skin. The laser beam is emitted from the location shown in the figure.

  • Page 5: Important Safety Precautions

    http://www.xiaoyu163.com IMPORTANT SAFETY PRECAUTIONS 3 7 63 1515 0 Product Safety Notice I. Also check areas surrounding repaired locations. J. Be careful that foreign objects (screws, solder Some electrical and mechanical parts have special droplets, etc.) do not remain inside the set. safety-related characteristics which are often not evi- K.
  • Page 6 http://www.xiaoyu163.com Safety Check after Servicing 3 7 63 1515 0 Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts, and wires have been returned to their original posi- Chassis or Secondary Conductor tions. Afterwards, do the following tests and confirm the specified values to verify compliance with safety Primary Circuit Terminals standards.

  • Page 7: Standard Notes For Servicing

    http://www.xiaoyu163.com STANDARD NOTES FOR SERVICING 3 7 63 1515 0 Circuit Board Indications How to Remove / Install Flat Pack-IC 1. Removal a. The output pin of the 3 pin Regulator ICs is indi- cated as shown. With Hot-Air Flat Pack-IC Desoldering Machine:. (1) Prepare the hot-air flat pack-IC desoldering Top View Bottom View...
  • Page 8 http://www.xiaoyu163.com With Soldering Iron: (4) Bottom of the flat pack-IC is fixed with glue to the 3 7 63 1515 0 CBA; when removing entire flat pack-IC, first apply (1) Using desoldering braid, remove the solder from all soldering iron to center of the flat pack-IC and heat pins of the flat pack-IC.
  • Page 9 http://www.xiaoyu163.com Instructions for Handling 2. Installation 3 7 63 1515 0 Semi-conductors (1) Using desoldering braid, remove the solder from the foil of each pin of the flat pack-IC on the CBA Electrostatic breakdown of the semi-conductors may so you can install a replacement flat pack-IC more occur due to a potential difference caused by electro- easily.

  • Page 10: Cabinet Disassembly Instructions

    http://www.xiaoyu163.com CABINET DISASSEMBLY INSTRUCTIONS 3 7 63 1515 0 1. Disassembly Flowchart REMOVAL REMOVE/*UNHOOK/ LOC. PART Fig. This flowchart indicates the disassembly steps to gain UNLOCK/RELEASE/ Note access to item(s) to be serviced. When reassembling, UNPLUG/DESOLDER follow the steps in reverse order. Bend, route, and 2(S-4), CN5002, [7] Relay CBA dress the cables as they were originally.
  • Page 11 http://www.xiaoyu163.com *=Unhook, Unlock, Release, Unplug, or Desolder 3 7 63 1515 0 e.g. 2(S-2) = two Screws (S-2), (S-2) (L-1) 2(L-2) = two Locking Tabs (L-2) (5): Refer to “Reference Notes.” Reference Notes (L-1) CAUTION 1: Locking Tabs (L-1) are fragile. Be careful not to break them.
  • Page 12 http://www.xiaoyu163.com 3 7 63 1515 0 Drive Mecha CN5101 Assembly CN5002 Short the three short lands by soldering [8] Sensor CBA (S-5) CN5005 [7] Relay (S-4) Fig. D6 [10] TrayGuide (L) (S-7) View for A (S-7) (S-8) L 13942296513 (S-8) Short the three short lands by soldering Slide...
  • Page 13 http://www.xiaoyu163.com 3 7 63 1515 0 [14] Slide Tray Gear (A) (S-15) (S-15) [16] Switch CBA (S-9) [20] PRO PCB(A) Shield (P-1) Belt L (S-10) CN1801 [21] Progressive CBA Unit (S-16) [12] Loading Pulley (S-11) [22] Shield Assembly [17] Tray Guide (R) (S-16) (L-4) [13] Slide Tray Gear (B)

  • Page 14: Troubleshooting

    http://www.xiaoyu163.com TROUBLESHOOTING 3 7 63 1515 0 FLOW CHART NO.1 The power cannot be turned on.(1) See FLOW CHART No.3 <The fuse blows out.> Is the fuse normal? Is normal state restored when once unplugged Check if there is any leak or shor-circuit on the power cord is plugged again after several seconds? primary circuit component? (Q1001, Q1003,T1001, D1001, D1002, D1004,...
  • Page 15 http://www.xiaoyu163.com 3 7 63 1515 0 FLOW CHART NO.4 When the output voltage fluctuates. Does the photo coupler circuit on the secondary Check the circuit and replace the parts. side operate normally? (IC1001, IC1006, D1048, D1015) Does the photo coupler circuit on the primary side Check the circuit and replace the parts.
  • Page 16 http://www.xiaoyu163.com FLOW CHART NO.8 3 7 63 1515 0 No operation is possible from the remote control unit. Operation is possible from the DVD, but no operation is possible from the remote control unit. Is no operation possible if replacing the remote Original remote control unit is poor.
  • Page 17 http://www.xiaoyu163.com 3 7 63 1515 0 FLOW CHART NO.13 PON 1.8V is not outputted. Check D1013, C1014 and the periphery circuit. Is 2.5V voltage supplied at pin(1) of IC1002? Check PWRCON line. Is the "H" pulse inputted into pin(4) of IC1002? Replace IC1002.
  • Page 18 http://www.xiaoyu163.com 3 7 63 1515 0 FLOW CHART NO.17 [No Disc] is indicated. (When the focus servo is not functioning.) Replace the DVD Main CBA Unit. No improvement can be found. The malfunction of the original DVD Main CBA Unit. Replace the DVD Mecha.
  • Page 19 http://www.xiaoyu163.com 3 7 63 1515 0 FLOW CHART NO.20 Picture does not appear normally in interlace mode. Set the disc on the disc tray and playback. Replace the DVD Main CBA Unit or DVD Mecha . Are the video signals outputted to each pin of CN1601 on the the Changer CBA? CN1601 7PIN CVBS...
  • Page 20 http://www.xiaoyu163.com 3 7 63 1515 0 FLOW CHART NO.21 Component video signals are not outputted normally in progressive mode. Set the disc on the disc tray and playback. Are the video signals outputted to each pins of Check the line between each pin of CN1602 and CN1602 on the Changer CBA? each pin of JK1403 on the Changer CBA, and their periphery.
  • Page 21 http://www.xiaoyu163.com 3 7 63 1515 0 FLOW CHART NO.22 Audio is not outputted. Set the disc on the disc tray and playback. Replace the DVD Main CBA Unit or DVD Mecha. Are the analog audio signals outputted to each pin of CN1601 on the Changer CBA? CN1601 13PIN AUDIO-L CN1601 15PIN AUDIO-R...

  • Page 22: Block Diagrams

    http://www.xiaoyu163.com BLOCK DIAGRAMS DVD System Control Block Diagram 3 7 6 3 1 5 1 5 0 IC301 IC601 (FRONT END PROCESSOR) (DVD HOST PROCESSOR) TFWD TREV TFWD TFWD TOUT TREV TREV TOUT IC605 TOUT +3.3V STDIO RESET RESET FROM/TO STDIO RF SIGNAL PROCESS...
  • Page 23 http://www.xiaoyu163.com Changer System Control Block Diagram 3 7 6 3 1 5 1 5 0 FOCUS SERVO SIGNAL TRACKING SERVO SIGNAL PICK-UP UNIT CHANGER CBA CN5004 CN5005 LOADING C 10 MOTOR CN3003 DETECTOR 1 LM(+) 2 LM(-) CD/DVD 21 CD/DVD CN3001 CN5004 CN5005...
  • Page 24 http://www.xiaoyu163.com RF Signal Process/Servo Block Diagram 3 7 6 3 1 5 1 5 0 DATA(VIDEO/AUDIO) SIGNAL FOCUS SERVO SIGNAL TRACKING SERVO SIGNAL SLIDE SERVO SIGNAL DISK SERVO SIGNAL IC101 (RF SIGNAL PROCESS) DVD MAIN CBA UNIT HOLD TESTSG CN101 FROM/TO DVD SIGNAL PROCESS BLOCK DIAGRAM...
  • Page 25 http://www.xiaoyu163.com DVD Signal Process Block Diagram 3 7 6 3 1 5 1 5 0 DATA(VIDEO/AUDIO) SIGNAL DVD MAIN CBA UNIT IC201 (DVD SIGNAL PROCESS) PARA0 PARA1 PARA2 DATA VIDEO/AUDIO PARA3 SLICER PARA0-PARA7 TO VIDEO DEMODULATOR FROM/TO RF SIGNAL INTERFACE NARF PARA4 BLOCK DIAGRAM...
  • Page 26 http://www.xiaoyu163.com Video Block Diagram 3 7 6 3 1 5 1 5 0 DATA(VIDEO) SIGNAL DATA(AUDIO) SIGNAL VIDEO SIGNAL DATA(VIDEO/AUDIO) SIGNAL IC601 (DVD HOST PROCESSOR) CACHE FROM DVD PARA0 SUBSYSTEM SIGNAL PROCESS PARA0-PARA7 BLOCK DIAGRAM PARA7 CENTRAL FRONT-END PCM-BCK COMMAND &...
  • Page 27 http://www.xiaoyu163.com Progressive Block Diagram 3 7 6 3 1 5 1 5 0 DATA(VIDEO) SIGNAL VIDEO SIGNAL IC1801 (DE-INTERLACER) IC1803 (PROGRESSIVE ENCODER) CN1801 TEST PATT.GENE. 3-10 YC(0-7) FORMATTER DE-INTERLACER FORMATTER /DELAY /GAMMA CORRECTOR FROM/TO VIDEO BLOCK CLK27MHz PLL/CLOCK GENE DIAGRAM CN702 H SYNC 4:2:2 4:2:2...
  • Page 28 http://www.xiaoyu163.com Audio Block Diagram 3 7 6 3 1 5 1 5 0 DATA(AUDIO) SIGNAL AUDIO SIGNAL IC1204 FIBER OPTIC TRANS MODULE WF 6 JK1201 CN701 CN1601 Q1351 SPDIF DIGITAL AUDIO OUT IC801 (AUDIO DAC) IC1201 (AMP) W F4 SPDIF CN701 CN1601 4X/8X...
  • Page 29 http://www.xiaoyu163.com Power Supply Block Diagram 3 7 6 3 1 5 1 5 0 CAUTION ! CAUTION Switching power supply circuit is used in this unit. FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, NOTE : If Main Fuse (F1001) is blown, check to see that all components in the REPLACE ONLY WITH THE SAME TYPE FUSE.

  • Page 30: Schematic Diagrams / Cba's And Test Points

    http://www.xiaoyu163.com SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS 3 7 63 1515 0 Standard Notes Notes: WARNING 1. Do not use the part number shown on these draw- ings for ordering. The correct part number is Many electrical and mechanical parts in this chassis shown in the parts list, and may be slightly different have special characteristics.
  • Page 31 http://www.xiaoyu163.com LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING 3 7 63 1515 0 PAGES: 1. CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE. ATTENTION: POUR UNE PROTECTION CONTINUE LES RISQES D'INCELE N'UTILISER QUE DES FUSIBLE DE MEMO TYPE.

  • Page 32: Waveforms

    http://www.xiaoyu163.com WAVEFORMS 3 7 6 3 1 5 1 5 0 Pin 5 of CN1601 Pin 15 of CN1601 NOTE: Input CD: 1kHz PLAY (WF4~WF6) DVD: POWER ON (STOP) MODE (WF1~WF3) 0.2V 20usec 0.5msec VIDEO-Y AUDIO-R Pin 7 of CN1601 Pin 18 of CN1601 VIDEO-CVBS 0.5V 20usec...

  • Page 33: Wiring Diagrams

    http://www.xiaoyu163.com WIRING DIAGRAM 3 7 6 3 1 5 1 5 0 VIDEO-Y VIDEO-U VIDEO-V VIDEO AUDIO AUDIO S-VIDEO OPTICAL DIGITAL OUT(L) OUT(R) AUDIO OUT AUDIO OUT AC CORD CN2100 CN1101 CN1001 CN3001 CHANGER CBA EV+9V EV+9V EV+5V EV+3.3V EV+2.5V CN401 CN501 EV+2.5V...

  • Page 34: Firmware Renewal Mode

    http://www.xiaoyu163.com FIRMWARE RENEWAL MODE 3 7 63 1515 0 1. Turn the power on and remove the disc on the tray. 2. To put the DVD player into version up mode, press [9], [8], [7], [6], and [SEARCH MODE] buttons on the remote control unit in that order.
  • Page 35 http://www.xiaoyu163.com 3 7 63 1515 0 8. Disconnect and connect the AC Plug to the AC Outlet again during opening the Tray. 9. The Tray closes when the POWER Button (*1) is pressed to turn on the Power of the unit. (*1: The operation differs depending on models.) After the above, a series of the Back-End F/W updating procedures completes.

  • Page 36: Lead Identifications

    http://www.xiaoyu163.com LEAD IDENTIFICATIONS 3 7 63 1515 0 2SK3374 2SC2785 (H) 2SC2120-Y(TPE2) KTC3199 (GR) KTC3203(Y) KRA110M 2SC2236-Y-TPE6,C KRC110M-AT KTC3205 (Y) BA1L3Z-T BN1L3Z (P) 2SA1015-Y (TPE2) KTA1266 (Y) DTC114ESA TP G D S E C B E C B PT204-6B-12 PT6315-S PT6315-S(-TP) 2SA1359-Y KIA431-AT...
  • Page 37 http://www.xiaoyu163.com Progressive Schematic Diagram 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 - 37 - http://www.xiaoyu163.com...
  • Page 38 http://www.xiaoyu163.com DVD Main 1/4 Schematic Diagram 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 - 38 - http://www.xiaoyu163.com...
  • Page 39 http://www.xiaoyu163.com DVD Main 2/4 Schematic Diagram 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 - 39 - http://www.xiaoyu163.com...
  • Page 40 http://www.xiaoyu163.com DVD Main 3/4 Schematic Diagram 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 - 40 - http://www.xiaoyu163.com...
  • Page 41 http://www.xiaoyu163.com DVD Main 4/4 Schematic Diagram 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 - 41 - http://www.xiaoyu163.com...
  • Page 42 http://www.xiaoyu163.com Power Supply Schematic Diagram 3 7 6 3 1 5 1 5 0 CAUTION ! CAUTION Fixed voltage power supply circuit is used in this unit. FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, NOTE : If Main Fuse (F1001) is blown, check to see that all components in the REPLACE ONLY WITH THE SAME TYPE FUSE.
  • Page 43 http://www.xiaoyu163.com Changer 1/3 Schematic Diagram 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 - 43 - http://www.xiaoyu163.com...
  • Page 44 http://www.xiaoyu163.com Changer 2/3 Schematic Diagram 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 - 44 - http://www.xiaoyu163.com...
  • Page 45 http://www.xiaoyu163.com Changer 3/3 Schematic Diagram 3 7 6 3 1 5 1 5 0 FL2001 MATRIX CHART STANDBY TITLE CHP. TRK. REPEAT DVD VIDEO CD 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 - 45 - http://www.xiaoyu163.com...
  • Page 46 http://www.xiaoyu163.com Relay Schematic Diagram 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 - 46 - http://www.xiaoyu163.com...

  • Page 47: Exploded Views

    http://www.xiaoyu163.com EXPLODED VIEWS 3 7 63 1515 0 Cabinet View 1 See Electrical Parts List 2L021 for parts with this mark. 2L021 Some Ref. Numbers are not in sequence. 2L021 2L021 2L021 2L021 2L041 2L061 2L061 Relay CBA W1801 2B13 Progressive W5002 W1802...
  • Page 48 http://www.xiaoyu163.com 3 7 63 1515 0 Cabinet View 2 B1-30 B1-30 B1-2 B1-26 L1-6 B1-46 B1-41 B1-24 B1-22 B1-43 B1-42 B1-24 B1-20 B1-3 B1-19 B1-5 B1-21 SW-403 L1-11 B1-11 B1-45 L1-5 B1-13 B1-6 B1-36 B1-7 L1-11 B1-37 B1-4 L1-11 B1-8 L1-23 B1-38 L1-26...
  • Page 49 http://www.xiaoyu163.com Packing 3 7 63 1515 0 L 13942296513 Unit u163 - 49 - http://www.xiaoyu163.com...

  • Page 50: Parts List

    http://www.xiaoyu163.com 3 7 63 1515 0 PARTS LIST PRODUCT SAFETY NOTE: Products marked with a # NOTE: have special characteristics important to safety. Before Parts that are not assigned part numbers (---------) are replacing any of these components, read carefully the not available.
  • Page 51 http://www.xiaoyu163.com 3 7 63 1515 0 Ref. No. Mark Description Parts No. (DE) Part No. Q'ty I/B BAG 0DM400757 9H2 6000 319 AV CORD LP-970124 WPZ0102LG008 9H2 6000 225 AV CORD TSCKA-Y/RW100 WPZ0102TM015 9H2 6000 226 AV CORD RCA(M*2)TO RCA(M*2) WPZ0102LTE01 9H2 6000 243 X10!

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