Denon DVD-1740/558 Service Manual
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Denon DVD-1740/558 Service Manual

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MODEL
DVD-1740/558
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.
SERVICE MANUAL
JP
DVD VIDEO PLAYER
サービスをおこなう前に、このサービスマニュアルを
必ずお読みください。本機は、火災、感電、けがなど
に対する安全性を確保するために、さまざまな配慮を
おこなっており、また法的には「電気用品安全法」に
もとづき、所定の許可を得て製造されております。
従ってサービスをおこなう際は、これらの安全性が維
持されるよう、このサービスマニュアルに記載されて
いる注意事項を必ずお守りください。
e
Denon Brand Company, D&M Holdings lnc.
E3
E2
EK
注 意
本機の仕様は性能改良のため、予告なく変更すること
●
があります。
補修用性能部品の保有期間は、製造打切後 8 年です。
●
修理の際は、必ず取扱説明書を参照の上、作業を行っ
●
てください。
本文中に使用しているイラストは、説明の都合上現物
●
と多少異なる場合があります。
Ver. 3
Please refer to the
MODIFICATION NOTICE.
E2A E1C E1K EUT
X0399V.03 DE/CDM 0802

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Summary of Contents for Denon DVD-1740/558

  • Page 1 Please use this service manual with referring to the ● 修理の際は、必ず取扱説明書を参照の上、作業を行っ ● operating instructions without fail. てください。 Some illustrations using in this service manual are ● 本文中に使用しているイラストは、説明の都合上現物 ● slightly different from the actual set. と多少異なる場合があります。 Denon Brand Company, D&M Holdings lnc. X0399V.03 DE/CDM 0802...
  • Page 2 DVD-1740/558 SAFETY PRECAUTIONS The following check should be performed for the continued protection of the customer and service technician. LEAKAGE CURRENT CHECK Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis resistance check.

  • Page 3: Specifications

    DVD-1740/558 SPECIFICATIONS Item Conditions Unit Nominal Limit 75 Ω load 1. Video Output ± 0.1 75 Ω load 2. Coaxial Digital Out mVpp ± 50 3. Audio (PCM) 3-1. Output Level 1 kHz, 0 dB Vrms 3-2. S/N 3-3. Freq. Response fs = 48 kHz, 20 Hz ~ 22 kHz ±...

  • Page 4: Safety Check After Servicing

    DVD-1740/558 Safety Check after Servicing Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts, and wires have been returned to their original positions. Afterwards, do the following tests and confirm the specified values to verify compliance with safety standards.

  • Page 5: Standard Notes For Servicing

    DVD-1740/558 STANDARD NOTES FOR SERVICING Circuit Board Indications Pb (Lead) Free Solder 1. The output pin of the 3 pin Regulator ICs is When soldering, be sure to use the Pb free solder. indicated as shown. How to Remove / Install Flat Pack-IC...
  • Page 6 DVD-1740/558 3. The flat pack-IC on the CBA is affixed with glue, so With Soldering Iron: be careful not to break or damage the foil of each 1. Using desoldering braid, remove the solder from pin or the solder lands under the IC when all pins of the flat pack-IC.

  • Page 7: Installation

    DVD-1740/558 With Iron Wire: 2. Installation 1. Using desoldering braid, remove the solder from 1. Using desoldering braid, remove the solder from all pins of the flat pack-IC. When you use solder the foil of each pin of the flat pack-IC on the CBA...

  • Page 8: Instructions For Handling Semi- Conductors

    DVD-1740/558 Instructions for Handling Semi- conductors Electrostatic breakdown of the semi-conductors may occur due to a potential difference caused by electrostatic charge during unpacking or repair work. 1. Ground for Human Body Be sure to wear a grounding band (1 MΩ) that is properly grounded to remove any static electricity that may be charged on the body.
  • Page 9 DVD-1740/558 CABINET DISASSEMBLY INSTRUCTIONS 1. Disassembly Flowchart This flowchart indicates the disassembly steps to gain Removal access to item(s) to be serviced. When reassembling, Remove/*Unhook/ follow the steps in reverse order. Bend, route, and Loc. Part Fig. Unlock/Release/ Note dress the cables as they were originally.

  • Page 10: Reference Notes

    DVD-1740/558 Reference Notes 1. CAUTION 1: Locking Tabs (L-1), (L-2), (L-3) and (L-4) are fragile. Be careful not to break them. [3] Tray Panel 1) Release four Locking Tabs (L-1), then release two Locking Tabs (L-2). (L-4) 2) Release three Locking Tabs (L-3).
  • Page 11 DVD-1740/558 DVD1740BKE3 [6] Reinforce Plate only (S-8) [7] Rear Panel (S-8) (S-4) (S-6) (S-3) (S-4) (S-5) (S-4) (S-3) [9] DVD Mechanism Fig. D4 Fig. D6 (S-9) (S-9) [8] DVD Main CBA Unit [11] AV CBA (S-7) CN201 (S-10) CN301 CN601...

  • Page 12: How To Eject Manually

    DVD-1740/558 [12] Loader Base (S-11) (S-11) (S-12) [14] Power PCB Holder (S-13) [13] Main PCB Holder Fig. D8 3. How to Eject Manually 1. Remove the Top Cover. 2. Rotate the roulette in the direction of the arrow as shown below.

  • Page 13: How To Initialize The Dvd Player

    DVD-1740/558 HOW TO INITIALIZE THE DVD PLAYER To put the program back at the factory-default, initialize the DVD player using the following procedure. 1. Press [1], [2], [3], [4], and [DISPLAY] buttons on the remote control unit in that order.

  • Page 14: Firmware Renewal Mode

    DVD-1740/558 FIRMWARE RENEWAL MODE 1. Turn the power on and remove the disc on the tray. The appearance shown in (*1) of Fig. c is described as follows: 2. To put the DVD player into version up mode, press [9], [8], [7], [6], and [SEARCH MODE] buttons on...
  • Page 15 DVD-1740/558 10. Press [CLEAR] button on the remote control unit. Fig. h appears on the screen. " ******* " differ depending on the models. MODEL : ******* Version : *.** Region LD OPERATING TIME TIME(DVD) : *:** TIME(CD) : *:**...

  • Page 16: Tray Lock Mode

    DVD-1740/558 TRAY LOCK MODE Tray Lock Mode prevents the tray opening or closing to prevent disc theft in demo mode. Enter this mode using the following procedure. 1. Confirm that the TV Monitor is connected. 2. With playback stopped, press [SETUP], [TOP MENU], [3], [AUDIO], [0] and [SETUP] buttons on the remote control unit in that order.

  • Page 17: Remote Lock Mode

    DVD-1740/558 REMOTE LOCK MODE Note: DVD1740BKE3 only has this mode. SETTING MENU: Remote Lock Off Mode: This mode receives an input signal from the remote control unit or from the Remote In-Jack on the rear panel. Remote Lock On Mode:...

  • Page 18: Troubleshooting

    DVD-1740/558 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 short-circuiting on the power cord is plugged again after several seconds? primary circuit component, and service it if defective.
  • Page 19 DVD-1740/558 FLOW CHART NO.6 P-ON+10V (EV+9V) is not outputted. Is 11V voltage supplied to the emitter of Q1002? Check D1030, D1048, C1035, C1048, L1009 and 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 20 DVD-1740/558 FLOW CHART NO.12 The fluorescent display tube does not light up. Is 3.3V voltage supplied to Pins(6,24) of IC2001? Check the EV+3.3V line and service it if defective. Is the voltage of approximately -20V supplied to Check the -FL (-20V) line and service it if defective.
  • Page 21 DVD-1740/558 FLOW CHART NO.15 The disc tray cannot be opened and closed. (It can be done using the remote control unit.) Is the normal control voltage inputted to Pin(31) of Replace the "OPEN/CLOSE" switch (SW2108). IC2101? Refer to "FLOW CHART NO.13" <The key operation is not functioning.>...
  • Page 22 DVD-1740/558 FLOW CHART NO.20 Both functions of picture and sound do not operate normally. Replace the DVD Main CBA Unit. No improvement can be found. Original DVD Main CBA Unit is poor. Replace the DVD Mechanism. FLOW CHART NO.21 Picture does not appear normally.
  • Page 23 DVD-1740/558 FLOW CHART NO.22 Audio is not outputted normally. Set the disc on the disc tray, and playback. Replace the DVD Main CBA Unit or DVD Mechanism. Are the analog audio signals outputted to each pin of CN1601 on AV CBA?
  • Page 24 DVD-1740/558 BLOCK DIAGRAMS System Control / Servo Block Diagram...

  • Page 25: Digital Signal Process Block Diagram

    DVD-1740/558 Digital Signal Process Block Diagram...

  • Page 26: Video / Audio Block Diagram

    DVD-1740/558 Video / Audio Block Diagram...

  • Page 27: Audio Block Diagram

    DVD-1740/558 Audio Block Diagram...

  • Page 28: Power Supply Block Diagram

    DVD-1740/558 Power Supply Block Diagram...

  • Page 29: Schematic Diagrams / Cba's And Test Points

    DVD-1740/558 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 replacement components rated for higher voltage, wattage, etc.

  • Page 30: List Of Caution, Notes, And Symbols Used In The Schematic Diagrams On The Following Pages

    DVD-1740/558 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 31 DVD-1740/558 DVD Main 1/4 Schematic Diagram 1 NOTE: Either IC461 or IC462 is used for DVD MAIN CBA UNIT.
  • Page 32 DVD-1740/558 DVD Main 2/4 Schematic Diagram...
  • Page 33 DVD-1740/558 DVD Main 3/4 Schematic Diagram...
  • Page 34 DVD-1740/558 DVD Main 4/4 Schematic Diagram...
  • Page 35 DVD-1740/558 AV 1/3 Schematic Diagram CAUTION ! For continued protection against fire hazard, replace only with the same type fuse. CAUTION ! ATTENTION : Pour une protection continue les risqes Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
  • Page 36 DVD-1740/558 AV 2/3 Schematic Diagram...
  • Page 37 DVD-1740/558 AV 3/3, Function & LED Schematic Diagram Comparison Chart of Models and Marks Model Mark DVD1740BKE3 DVD558BKE3 TL./GR. TR. /CP. PSCAN DVD A SACD FL2001 MATRIX CHART TL./GR. RPT. TR./CP. PSCAN SACD...
  • Page 38 DVD-1740/558 WAVEFORMS Pin 8 of CN1601 Pin 14 of CN1601 AUDIO(R) 0.5V 0.5ms VIDEO-Y 0.2V 20µs Pin 10 of CN1601 Pin 16 of CN1601 VIDEO-C 0.2V 20µs SPDIF 0.1µs C1402 PLUS LEAD NOTE: Measuring Disc DVD: DVDT-S01 CD : TCD-784 VIDEO-CVBS 0.5V...
  • Page 39 DVD-1740/558 WIRING DIAGRAM 1 SCLOCK 2 GND 3 EXTRG0 4 EV+3.3V(D) 5 SDATA 6 RESET 7 NU 8 GND 9TRCDATA1 9 NU 10 NU 11 NU 12 NU 13 NU P-ON+5V 20 CD/DVD 19 D 18 A 17 C 16...

  • Page 40: Lead Identifications

    DVD-1740/558 LEAD IDENTIFICATIONS TNY277 KTA1267-Y-AT/P 2SA1015-Y(TE2 F T) KTC3199-(GR,Y)-AT/P 2SA966-Y(TE6 F M) KRA110M-AT/P KTA1266-Y-AT/P 2SA1980M Y 2SC5343M Y KTA1273-Y-AT/P 2SC5343MG-AT KRC103M-AT/P 2SC5344 Y 2SC2120-Y(TE2 F T) KTC3203-Y-AT/P 2SC1815-(GR,Y)(TE2 F T) E C B E C B KIA4558P/P UTC4558 PT6313-S-TP(L) MM1636XWRE...

  • Page 41: Exploded View

    DVD-1740/558 EXPLODED VIEW Cabinet 2L011 2L011 2L011 2L011 DVD Main CBA Unit 2L105 2L021 2L021 2L021 2L011 2L106 JK1401 CN3002 JK1404 JK1202 JK3501 IC1204 2L107 AC1001 2L114 F1001 2L106 2B34 2L114 2B39 2L102 2L101 2L102 LED CBA AV CBA 2L051...
  • Page 42 DVD-1740/558 PARTS LIST OF EXPLODED VIEW ＊本表に記載されている部品は、補修用部品のため製品に使用している部品とは一部、形状、寸法などが異なる場合があります。 ＊ The parts listed below are for maintenance only, might differ from the parts used in the unit in appearances or dimensions. ＊ "nsp" 印の部品は常時在庫していませんので供給に長時間を要することがあります。場合によっては、供給をお断りする場合があります。 ＊ Part indicated with the mark “nsp” are not always in stock and possibly to take a long period of time for supplying, or in some case supplying of part may be refused.
  • Page 43 DVD-1740/558 Packing Unit...
  • Page 44 DVD-1740/558 PARTS LIST OF PACKING & ACCESSORIES ＊本表に記載されている部品は、補修用部品のため製品に使用している部品とは一部、形状、寸法などが異なる場合があります。 ＊ The parts listed below are for maintenance only, might differ from the parts used in the unit in appearances or dimensions. ＊ "nsp" 印の部品は常時在庫していませんので供給に長時間を要することがあります。場合によっては、供給をお断りする場合があります。 ＊ Part indicated with the mark “nsp” are not always in stock and possibly to take a long period of time for supplying, or in some case supplying of part may be refused.

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