Denon DVD-910 Service Manual
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Denon DVD-910 Service Manual

Dvd video player
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Download this manual See also: Operating Insructions
For U.S.A. & Canada model
Ver. 1
SERVICE MANUAL
DVD-910
MODEL
DVD VIDEO PLAYER
For purposes of improvement, specifications and
design are subject to change without notice.
Please use this service manual with referring to
,
the operating instructions without fail.
Some illustrations using in this service manual are
slightly different from the actual set.
16-11, YUSHIMA 3-CHOME, BUNKYOU-KU, TOKYO 113-0034 JAPAN
X0176V.01 DE/CDM 0306

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Summary of Contents for Denon DVD-910

  • Page 1 For U.S.A. & Canada model Ver. 1 SERVICE MANUAL DVD-910 MODEL DVD VIDEO PLAYER For purposes of improvement, specifications and design are subject to change without notice. Please use this service manual with referring to the operating instructions without fail.

  • Page 2: Table Of Contents

    DVD-910 TABLE OF CONTENTS SPECIFICATIONS ............... . 3 LASER BEAM SAFETY PRECAUTIONS .

  • Page 3: Specifications

    DVD-910 SPECIFICATIONS ITEM CONDITIONS UNIT NOMINAL LIMIT 1. Video Output 75 ohm load ± 0.1 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 ± 0.5 fs=44.1kHz 20~20 kHz ±...

  • Page 4: Laser Beam Safety Precautions

    DVD-910 LASER BEAM SAFETY PRECAUTIONS 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. When checking the laser diode, be sure to keep your eyes at least 30cm away from the pickup lens when the diode is turned on.

  • Page 5: Important Safety Precautions

    DVD-910 IMPORTANT SAFETY PRECAUTIONS Product Safety Notice J. Be careful that foreign objects (screws, solder drop- lets, etc.) do not remain inside the set. Some electrical and mechanical parts have special K. Crimp type wire connector safety-related characteristics which are often not evi-...

  • Page 6: Safety Check After Servicing

    DVD-910 Safety Check after Servicing Examine the area surrounding the repaired location for Chassis or Secondary Conductor damage or deterioration. Observe that screws, parts, and wires have been returned to their original posi- Primary Circuit Terminals tions. Afterwards, do the following tests and confirm the specified values to verify compliance with safety stan- dards.

  • Page 7: Standard Notes For Servicing

    DVD-910 STANDARD NOTES FOR SERVICING 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...
  • Page 8 DVD-910 With Soldering Iron: (4) Bottom of the flat pack-IC is fixed with glue to the 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 DVD-910 Instructions for Handling 2. Installation Semi-conductors (1) Using desoldering braid, remove the solder from the foil of each pin of the flat pack-IC on the CBA so you Electrostatic breakdown of the semi-conductors may can install a replacement flat pack-IC more easily.

  • Page 10: Cabinet Disassembly Instructions

    DVD-910 CABINET DISASSEMBLY INSTRUCTIONS 1. Disassembly Flowchart (1): Identification (location) No. of parts in the figures (2): Name of the part This flowchart indicates the disassembly steps to gain (3): Figure Number for reference access to item(s) to be serviced. When reassembling, follow the steps in reverse order.
  • Page 11 DVD-910 (S-5) (S-1) (S-4) [1] Top Cover [6] Shield Plate (S-1) [7] Progressive CBA Unit (S-6) CN202 (S-3) [8] DVD Main CBA Unit (S-1) CN301 CN201 Fig. D1 (S-7) Tray Panel (L-2) [9] Holder [5] DVD CN6401 (L-1) Mecha (L-1)
  • Page 12 DVD-910 (S-9) [10] AV CBA (S-10) (S-9) (S-9) (S-9) Desolder [11] Switch (S-8) [12] Rear Panel Fig. D7 (L-4) Fig. D6 HOW TO MANUAL EJECT 1. Remove the Top Case. 2. Rotate the roulette in the direction of the arrow as shown below.

  • Page 13: Troubleshooting

    DVD-910 TROUBLESHOOTING FLOW CHART NO.1 The power cannot be turned on. See FLOW CHART No.2 <The fuse blows out.> Is the fuse normal? Is normal state restored when once unplugged Check if there is any leak or shor-circuiting on the power cord is plugged again after several seconds? primary circuit component, and service it if defective.
  • Page 14 DVD-910 FLOW CHART NO.6 P-ON+9V (EV+9V) is not outputted. Check D1030, D1048, C1035, C1048, L1009 and Is 9V voltage supplied to the emitter of Q1002? the periphery circuit, and service it if defective. Check Q1016 and PWRCON line and service it if Is the voltage of base on Q1002 lower than the defective.
  • Page 15 DVD-910 FLOW CHART NO.12 The fluorescent display tube does not light up. Is 3.3V voltage supplied to Pin(6) and Check the EV+3.3V line and service it if detective. Pin(24) of IC2001? Is the voltage of approximately -24V to -28V Check the -FL (-28V) line and service it if detective.
  • Page 16 DVD-910 FLOW CHART NO.14 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. Check EV+5V line and service it if detective. Is 5V voltage supplied to the Pin(3) terminal of the infrared remote control receiver (RM2001)? Is the "L"...
  • Page 17 DVD-910 FLOW CHART NO.18 [No Disc] indicated. (When the focus servo is not functioning.) Replace the DVD Main CBA. No improvement can be found. Original DVD Main CBA is poor. Replace the DVD Mecha. FLOW CHART NO.19 [No Disc] indicated. (When the laser beam does not light up.) Replace the DVD Main CBA.
  • Page 18 DVD-910 Are the video signals outputted to each pin of IC6102? IC6102 4PIN Is 5V voltage supplied to Pin(16) of IC6102? IC6102 15PIN Pb/Cb IC6102 14PIN Pr/Cr Replace IC6102. Check P-ON+5V line and service it if detective. Check the line between each pin of IC6102 and...
  • Page 19 DVD-910 FLOW CHART NO.22 Audio is not outputted. Set the disc on the disc tray, and playback. Replace the DVD Main CBA or DVD Mecha. Are the analog audio signals outputted to each pin of CN1601 on AV CBA? CN1601 13PIN AUDIO-L...

  • Page 20: Block Diagrams

    DVD-910 BLOCK DIAGRAMS System Control/Servo Block Diagram FOCUS SERVO SIGNAL TRACKING SERVO SIGNAL SLED SERVO SIGNAL SPINDLE SERVO SIGNAL IC101 (MICRO CONTROLLER) IC2002 ENERGY STAR EXT CLOCK MICROCONTROLLER CLK33M BE CLOCK REMOTE-OUT IC451 IC905 (CLOCK GENERATOR) PWRCON (INVERTER) X451 PWSW...

  • Page 21: Digital Signal Process Block Diagram

    DVD-910 Digital Signal Process Block Diagram DATA(VIDEO) SIGNAL DATA(AUDIO) SIGNAL DATA(VIDEO/AUDIO) SIGNAL VIDEO SIGNAL FOCUS SERVO SIGNAL TRACKING SERVO SIGNAL IC102 (SDRAM) IC101 (MICRO CONTROLLER) CN202 SDRAM ADDRESS(0-10) SDRAM ADDRESS(0-10) DATA SDRAM EXTERNAL MEMORY FROM/TO DECODER PROGRESSIVE INST. DECODER STREAM...
  • Page 22 DVD-910 Video / Audio Block Diagram DATA(AUDIO) SIGNAL AUDIO SIGNAL VIDEO SIGNAL JK1401 S-VIDEO OUT IC1402 (VIDEO DRIVER) W F 1 W F 2 DRIVER IC6102 (OUTPUT SELECT) W F 3 CN601 CN1601 VIDEO-C VIDEO-C FROM DIGITAL VIDEO-Y DRIVER VIDEO-Y...
  • Page 23 DVD-910 Progressive Block Diagram DATA(VIDEO) SIGNAL VIDEO SIGNAL IC1801 (DE-INTERLACER) IC1803 (PROGRESSIVE ENCODER) CN1801 TEST PATT.GENE. FORMATTER DE-INTERLACER FORMATTER /DELAY FROM/TO /GAMMA CORRECTOR DIGITAL SIGNAL PROCESS BLOCK DIAGRAM CN202 4:2:2 4:2:2 CLK27M PLL/CLOCK GENE H SYNC /RST SYNC V SYNC...

  • Page 24: Power Supply Block Diagram

    DVD-910 Power Supply Block Diagram CAUTION CAUTION ! FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. NOTE : REPLACE ONLY WITH THE SAME TYPE FUSE. If Main Fuse (F1001) is blown, check to see that all components in the power supply...

  • Page 25: Schematic Diagrams / Cba's And Test Points

    DVD-910 SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS Standard Notes WARNING Many electrical and mechanical parts in this chassis have special characteristics. These characteristics often pass unnoticed and the protection afforded by them cannot necessarily be obtained by using replace- ment components rated for higher voltage, wattage, etc.
  • Page 26 DVD-910 LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING 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 MÊME TYPE.
  • Page 27 DVD-910 DVD Main 1/3 Schematic Diagram...
  • Page 28 DVD-910 DVD Main 2/3 Schematic Diagram...
  • Page 29 DVD-910 IC101 VOLTAGE CHART PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- -----...
  • Page 30 DVD-910 DVD Main 3/3 Schematic Diagram...
  • Page 31 DVD-910 AV 1/3 Schematic Diagram CAUTION CAUTION ! NOTE : FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. The voltage for parts in hot circuit is measured REPLACE ONLY WITH THE SAME TYPE FUSE.
  • Page 32 DVD-910 AV 2/3 Schematic Diagram...
  • Page 33 DVD-910 AV 3/3,Function & Switch Schematic Diagram FL2001 MATRIX CHART STANDBY REPEAT STANDBY TITLE CHP. TRK. REPEAT TITLE CHP. TRK. 1 8 15 1 8 16 E57E0SCAV3...
  • Page 34 DVD-910 Progressive 1/2 Schematic Diagram...
  • Page 35 DVD-910 Progressive 2/2 Schematic Diagram...

  • Page 36: Waveforms

    DVD-910 WAVEFORMS Pin 7 of CN1601 Pin 15 of CN1601 NOTE: Input CD: 1kHz PLAY (WF4~WF6) DVD: POWER ON (STOP) MODE (WF1~WF3) VIDEO-Y 0.2V 20 sec AUDIO-R 0.5msec Pin 9 of CN1601 Pin 18 of CN1601 VIDEO-C 0.2V 20 sec SPDIF 0.1 sec...

  • Page 37: Wiring Diagrams

    DVD-910 WIRING DIAGRAM VIDEO VIDEO S-VIDEO VIDEO-Y VIDEO AUDIO-L AUDIO-R DIGITAL OPTICAL AC CORD -Pb/Cb -Pr/Cr AUDIO OUT AUDIO OUT CN2002 W2001 CN6401 AD-KEY JP2050 JP2001 KEY-2 AD-KEY KEY-1 STANDBY-LED 2 KEY-3 AV CBA KEY-4 SWITCH CBA FUNCTION CBA KEY-8...

  • Page 38: Firmware Renewal Mode

    DVD-910 FIRMWARE RENEWAL MODE 1. Turn the power on and remove the disc on the tray. 5. After programming is finished, the tray opens auto- 2. To put the DVD player into version up mode, press matically. Fig. e appears on the screen and the [9], [8], [7], [6], and [SEARCH MODE] buttons on checksum in (*3) of Fig.

  • Page 39: Lead Identifications

    DVD-910 LEAD IDENTIFICATIONS 2SK3374 2SC2785 (H) 2SA1015-Y (TPE2) KTC3199 (GR) KTA1266 (Y) KRA110M KTC3198 (Y) KTA1267 (Y) KTC3205(Y) BN1L3Z (P) 2SA966(Y) E C B E C B G D S PT6313-S-TP NJM4558D KIA431-AT MM1622XJBE KIA4558P K A R GP1FA512TZV LTV-817B-F...

  • Page 40: Exploded Views

    DVD-910 EXPLODED VIEWS Cabinet 2L011 See Electrical Parts List for parts with this mark. 2L011 Some Ref. Numbers are not in sequence. 2L105 2L104 2L021 2L021 2B12 Progressive CBA Unit 2L011 W6101 2L105 JK6102 W1601 2L031 2L031 JK1401 JK6103 JK1202...
  • Page 41 DVD-910 Packing Unit...

  • Page 42: Parts List

    NOTE: Parts that are not assigned part numbers (---------) are not available. Ref. No. Description Funai Parts No. DENON Parts No. FRONT ASSEMBLY 0VM204138 9H2 6000 360 TRAY ASSEMBLY 0VM413986 9H2 6000 202 FOOT(REAR)

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