Dvd audio-video / super audio cd player (132 pages)
Summary of Contents for Denon DVD-2900
Page 1
3 7 63 1515 0 For U.S.A., Canada, Europe & Japan model Ver. 2 SERVICE MANUAL DVD-2900 MODEL DVD AUDIO-VIDEO / SUPER AUDIO CD PLAYER L 13942296513 For purposes of improvement, specifications and design are subject to change without notice.
Page 2
DVD-2900 SAFETY PRECAUTIONS 3 7 63 1515 0 LEAKAGE CURRENT CHECK LASER RADIATION 500V L 13942296513 u163 http://www.xiaoyu163.com...
Page 3
DVD-2900 DISASSEMBLY 3 7 63 1515 0 (Follow the procedure below in reverse order when reassem- bling.) 1. Top Cover (1) Remove 10 screws on the top and both sides, and 2 screws on the rear. (2) Widen the Top Cover a little laterally, then detach it with sliding in the arrow direction.
Page 4
DVD-2900 2.2. When the Disc Tray cannot be ejected electri- 3 7 63 1515 0 cally (1) After removing the Top Cover, proceed as follows. (2) Insert a screwdriver(-) into the left hole of the Mecha. Fix Bracket, and push the Plate Gear of the DVD Mecha.
Page 5
DVD-2900 3 7 63 1515 0 4. DVD Mecha. (1) Disconnect 27P FFC (CY271) and 13P FFC (CY131) from the Main P.W.B.. (2) Disconnect 12P connector (CY121) from Power P.W.B.. (3) Remove 4 screws on the DVD Mecha and 2 screws on the Main P.W.B., then take it off in the arrow direction.
Page 6
DVD-2900 3 7 63 1515 0 6. Mecha.Unit (1) Remove 2 screws on the top of the Mecha. Unit, and de- tach the Guide Clamp Bracket with sliding in the arrow di- rection. (2) Solder the short-circuit on the Traverse Unit. (Refer to “Traverse Unit Disassembly”...
Page 7
DVD-2900 3 7 63 1515 0 7.2. Tray disassembly (1) Remove to arrow direction. (2) Solder the short-circuit (see in the frame). L 13942296513 7.3. Traverse Unit disassembly (1) Remove 24P FFC (CX241), 15P FFC (CX151), 5P PH WIRE (CX051) and 3P PH WIRE (CX031) connecting with from the Main P.W.B..
Page 8
DVD-2900 3 7 63 1515 0 Note for disassembly Traverse Unit (1) When assembling, reverse the order of the above. (2) When inserting Tray, confirm boss on Slide Cam set to ditch of the Tray (Compare with below drawing).
Page 9
DVD-2900 DIAGNOSTICS OF OPTICAL PICKUP 3 7 63 1515 0 AND REPLACING TRAVERSE UNIT Make failure diagnostics of the Optical Pickup as follows. If the laser drive current becomes more than 1.5 times of the initial value, the Optical Pickup should be replaced.
Page 10
DVD-2900 1. Label Indication of DVD Mechanism. 3 7 63 1515 0 Laser current consumption value ex) DVD mA, CD mA, CD 2. Note for Handling the Laser Pick-Up the protection for the damage of laser diode. If you want to change the optical device unit from any other units, you must keep the following.
Page 11
DVD-2900 4.1. DVD Laser current measurement 3 7 63 1515 0 LD(DVD) LD(DVD) +5V-A2 +5V-A2 Oscilloscope Oscilloscope (1) Connect the oscilloscope to +5V-A2 of test point for GND side and LD(DVD) of test point for signal side. (2) Playback the title 1 / chapter 1 of the DVD Test Disc.
Page 12
DVD-2900 5. Optical Pick-up Diagnostics and Replace- 3 7 63 1515 0 ment When repairing, carry out failure diagnostics by following the procedure described below. If the present value of the laser drive current is 50% up to ini- tial value, it is the point of the pickup replacement.
DVD-2900 SERVICE MODE 3 7 63 1515 0 1. Aging Mode (1) preparation (a) Equipment used: Any one of DVD Karaoke Disc (contain- ing more than 10 titles). (b) Unit setting : No spec other than the following procedure (Aging mode).
Page 14
DVD-2900 -Com Firm Check Mode 3 7 63 1515 0 (1) Preparation (a) Equipment used: None (b) Unit setting: No spec other than the following procedure. (2) Procedure (a) Press the “POWER” button to turn on the power while pressing the “PLAY”...
Page 15
DVD-2900 4. Setting up the test mode 3 7 63 1515 0 (1) Setting up • In order to set up the test mode, you press STOP button and REV button simultaneously in the heat-run mode.Fun- damentaly, you can set up the test mode at the stop state after disc loading.
Page 16
DVD-2900 (b) In the case of trace mode (error rate display) (refer to ta- 3 7 63 1515 0 ble 2 trace mode details) FL display (The display part of 13 digits) (YY: select mode [71--94] ,F: address and an error rate display F at the...
Page 17
DVD-2900 (7) Test mode detailed table 3 7 63 1515 0 Table 1: servo adjustment value display mode details L 13942296513 u163 http://www.xiaoyu163.com...
DVD-2900 TROUBLE SHOOTING 3 7 63 1515 0 1. GU-3494 MAIN PWB 1.1. FL TUBE doesn’t light (1) Check the Set-up process of Panel µ-COM Check Power Supply Voltages. N.G. Check soldering. • [IC301]:D1,D4 • CY121 on MAIN PWB.
Page 22
DVD-2900 (2) Check the Set-up process of B/E µ-COM. 3 7 63 1515 0 Check Power Supply Voltages. N.G. N.G. Check soldering. Check the output level. • [IC102]: • [IC301]: 55pin. [ON/ST]:”H” level? +3.3V_D1, +2.5V_D1 O.K.? Check the circumference O.K.
Page 23
N.G. • [IC102]: 108pin. • [IC502]:(DRVRST) 51 pin. • R129, R635 and R570. “H” level O.K.? O.K. 1.2. Image is not displayed. (Blue-back, DENON wallpaper) L 13942296513 Check soldering N.G. Check Digital output signal for Video. • [IC101]: 183--192pin. • [IC101]: PXD(0--7), VCLK •...
Page 24
DVD-2900 1.3. Does not Read Disc 3 7 63 1515 0 [No PLAY], [00 00] displayed etc. (1) Disc does not Rotate. Check the Emission of Pick-up. (1)Check soldering of P.U. N.G. • Emission of PU laser O.K.? • short-circuit?
Page 25
DVD-2900 (4) SACD check process 3 7 63 1515 0 Check communication. Check soldering • [VSTEM]: communication N.G. • [IC404] “L”--”H” level alternate? • R437--R449. O.K. N.G. Check RF signal for Water Mark. Check soldering • TP [WM]: about 1V •...
Page 26
DVD-2900 1.4. No sound, Noise generated 3 7 63 1515 0 (1) CD Check CD digital Audio data output. Check soldering N.G. • [CDLRCK], [CDBCLK], [CDDIN], [DOTX] • [IC502]: 58--62pin check. • R641--R644 O.K. Check soldering Check digital Audio data output.
Page 29
DVD-2900 ELECTRICAL ADJUSTMENT FOR VIDEO 3 7 63 1515 0 1. SETTING (1) Connect the monitor TV to the video output terminal. (2) Connect the oscilloscope to the Y-signal and C-signal of S-VIDEO output terminal and each terminate at 75 Ohms.
Page 30
DVD-2900 2.3. Procedure 3 7 63 1515 0 (1) Adjust the signal of S-VIDEO out by the wave of oscillo- scope. (a) Target, Y-signal Point VR704 Adjustment Value 1000 20mV Waveform Y-signal of S-VIDEO out (b) Target, C-signal Point...
Page 31
DVD-2900 (c) Target, P -signal 3 7 63 1515 0 Point VR703 Adjustment Value *525 10mV Waveform -signal * : 486 10mV for U.S.A. & Canada model L 13942296513 u163 http://www.xiaoyu163.com...
DVD-2900 SEMICONDUCTORS 3 7 63 1515 0 Only major semiconductors are shown, general semiconductors etc. are omitted to list. 1. IC’s Note: Abbreviation ahead of IC No. indicates the name of P.W.B., etc. MA: Main P.W.B. AU: Audio P.W.B.
Page 34
DVD-2900 Block Diagram 3 7 63 1515 0 16/4M DRAM ECC Core Memory Data manager Slicer Demodulation Video MPEG I/F CD-DSP (DDCD) Data-PLL VSTEM Serial ASP Serial I/F VSTEM Serial I/F Command CD-ROM DSP CLK/Mode Header Dec. Spindle Audio I/F...
Page 35
DVD-2900 Terminal Name Classification Function 3 7 63 1515 0 31 SYSCK Clock Clock Monitor output. 32 DV & GND Digital 1.8V Power. (Internal logic system power) 33 XI Clock Crystal oscillation input. 34 XO Clock Crystal oscillation output.
Page 37
DVD-2900 Terminal Name Classification Function 3 7 63 1515 0 150 RD14 DRAM I/F DRAM data input/output terminal 14. 151 RD13 DRAM I/F DRAM data input/output terminal 13. 152 RD12 DRAM I/F DRAM data input/output terminal 12. 153 RD11 DRAM I/F DRAM data input/output terminal 11.
Page 38
DVD-2900 M65776BFP (MA:IC101) 3 7 63 1515 0 Top View L 13942296513 u163 http://www.xiaoyu163.com...
Page 39
DVD-2900 Pin Assignment 3 7 63 1515 0 No Name No Name No Name No Name 1 GND 53 MA[3] 105 CLKO 157 PDR[8] 2 BCLK 54 MA[4] 106 CLKIN 158 PDR[9] 3 BDEN 55 MA[2] 107 AVDD18 159 LRCLK...
Page 40
DVD-2900 Functions (Bit stream input interface / SDRAM interface) 3 7 63 1515 0 PIN Name Functions BD[7:0] Bit Stream data input. BCLK Strobe Signal from BD. BDEN The validity of the data extracted from BD is checked. BDREQ Data Request signal.
Page 41
DVD-2900 Functions (Host interface) 3 7 63 1515 0 Pin Name Functions HD[15:0] Data I/O. HA[11:0] Address input. Byte High Enable input. Read Enable input. Write Enable input. Chip Select input. Acknowledge signal which shows that read-out or the writing of data was completed.
Page 45
DVD-2900 Terminal Functions 3 7 63 1515 0 Pin Name Functions 1 VSC It fixed to ground.( for Core) Latch input for µCOM serial communication. 2 XMSLAT Shift clock input for µCOM serial communication. 3 MSCK Data input for µCOM serial communication.
Page 46
DVD-2900 Pin Name Functions 3 7 63 1515 0 50 TESTO Output for TEST. (open) 51 TESTI Input for TEST. It fixed to “L” potential. 52 TESTI Input for TEST. It fixed to “L” potential. 53 TESTO Output for TEST. (open) 54 VDC +2.5V Power for CORE.
Page 47
DVD-2900 Pin Name Functions 3 7 63 1515 0 96 TESTI TEST input terminal. It fixed to “L” potential. 97 TESTI TEST input terminal. It fixed to “H” potential. 98 TESTO TEST output terminal. (open) 99 VDC +2.5V Power for CORE.
Page 48
DVD-2900 Pin Name Functions 3 7 63 1515 0 148 A11 Address output terminal for SDRAM. (MSB) 149 A10 Address output terminal for SDRAM. 150 VSC Ground for CORE. 151 A9 Address output terminal for SDRAM. 152 A8 Address output terminal for SDRAM.
Page 52
DVD-2900 ADV7190 (VI: IC705) For Europe model 3 7 63 1515 0 ADV7190 (AV: IC601) SET1 COMP 1 DAC A DAC B AGND TOP VIEW DAC C DAC D AGND DAC E DAC F COMP 2 SET2 AGND ADV7190 Terminal Function Pin No.
Page 53
DVD-2900 ADV7300 (VI: IC704) 3 7 63 1515 0 ADV7300 (MA: IC706) VDD_IO S_BLANK SET 1 VREF COMP1 DAC A DAC B DAC C TOP VIEW AGND DAC D DGND DAC E DAC F COMP2 SET 2 EXT_LF RESET ADV7300 Terminal Function Pin No.
Page 56
DVD-2900 Terminal Function 3 7 63 1515 0 Power Supply Pins Name Function Power for RF and serial port Power for servo GND for RF and serial port GND for servo Power for output buffer Reference Power for servo output...
Page 57
DVD-2900 Analog Pins 3 7 63 1515 0 Name Function RF AGC integration capacitor connecting terminal Differential phase tracking LPF terminal Differential phase tracking LPF terminal Lens shift offset cancel LPF terminal Lens shift offset cancel LPF terminal MIRR top hold terminal...
Page 58
DVD-2900 W986416DH (MA: IC104) 3 7 63 1515 0 W986416DH (MA: IC103) DQ15 VssQ DQ14 DQ13 DQ12 DQ11 DQ10 LDQM UDQM A10/AP L 13942296513 W986416DH Terminal Function Pin No. Pin Name Function Description 1, 14, 27 Power (+3.3V) Power for input buffers and logic circuit inside DRAM.
Page 59
DVD-2900 16MSDRAM (TOSP)-8 (MA: IC402) 3 7 63 1515 0 16M SDRAM (TSOP)-8 (DM: IC103, 104) K4S161622D-TC80 W981616AH-8 Terminal Function Pin No. Pin Name Symbol Function Power Supply/Ground Power and ground for the input buffer and the core logic...
Page 65
DVD-2900 AN8471SA (MA: IC505) 3 7 63 1515 0 Pin No. Pin Name Function Hall bias pin Hall element 3 input (-) Hall element 3 input (+) Hall element 2 input (-) Hall element 2 input (+) Hall element 1 input (-)
Page 67
DVD-2900 Terminal Function 3 7 63 1515 0 TER M INAL DESCRIPTIONS NAME P I N ‡ DSDL I/O L-channel audio data input for DSD and external DF modes PCM mode zero flag for L-channel by ZERO output mode select ‡...
Page 68
DVD-2900 PIC18LC242-I/SO (VI: IC703) 3 7 63 1515 0 MCLR TOP VIEW INT0 OSC1 OSC2 PIC18LC242-I/SO Terminal Function Pin No. Pin Name Description MCLR Master Clear (Reset) input. This pin is an active low RESET to the device. Digital I/O.
Page 69
DVD-2900 BH7860FP (VI: IC706, 707) IC707 for Europe model 3 7 63 1515 0 CRRAP COUT 75ohm MUTE TEST MUTE TEST 1.5-6M 75ohm MIXOUT MIXFB YTRAP CLAMP 75ohm N.C. N.C. YOUT CbIN CrIN 75ohm CbOUT CbTRAP SEL C/Cbcr L 13942296513...
Page 73
DVD-2900 4. FL DISPLAY 17-ST-04GNK (FL101) 3 7 63 1515 0 COLOR ILLUMINATION Reddish Orange ----- Above pattern part Green ------------------ Other PIN CONNECTION PIN NO. CONNECTION NOTE 1) F-,F+ ---------- Filament 2) NP ------------- No pin PIN NO.
Page 74
DVD-2900 PRINTED WIRING BOARD 3 7 6 3 1 5 1 5 0 GU-3494 MAIN P.W.B. UNIT 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 COMPONENT SIDE http://www.xiaoyu163.com...
Page 75
DVD-2900 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 FOIL SIDE w w w u 1 6 3 http://www.xiaoyu163.com...
Page 76
DVD-2900 3 7 6 3 1 5 1 5 0 GU-3495 AUDIO P.W.B. UNIT 1 3 9 4 2 2 9 6 5 1 3 COMPONENT SIDE w w w u 1 6 3 http://www.xiaoyu163.com...
Page 77
DVD-2900 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 FOIL SIDE w w w u 1 6 3 http://www.xiaoyu163.com...
Page 78
DVD-2900 3 7 6 3 1 5 1 5 0 GU-3496 POWER/DISPLAY P.W.B. UNIT 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 COMPONENT SIDE http://www.xiaoyu163.com...
Page 79
DVD-2900 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 FOIL SIDE http://www.xiaoyu163.com...
Page 80
DVD-2900 3 7 6 3 1 5 1 5 0 GU-3497 VIDEO P.W.B. UNIT 1 3 9 4 2 2 9 6 5 1 3 w w w FOIL SIDE COMPONENT SIDE u 1 6 3 http://www.xiaoyu163.com...
Page 81
DVD-2900 GU-3343 SCART P.W.B. UNIT (Europe model only) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 COMPONENT SIDE FOIL SIDE w w w u 1 6 3...
Page 82
DVD-2900 3 7 63 1515 0 NOTE FOR PARTS LIST Part indicated with the mark " " 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 83
DVD-2900 PARTS LIST OF P.W.B. UNIT ASS’Y 3 7 63 1515 0 Note : The symbols in the column “Remarks” indicate the following destinations. E3 : U.S.A. & Canada model E2 : Europe model JP : Japan model GU-3494 MAIN UNIT Ref.
Page 98
DVD-2900 GU-3343 SCART PWB UNIT 3 7 63 1515 0 Ref. No. Part No. Part Name Remarks SEMICONDUCTORS GROUP IC851 262 1793 901 TC4W53F IC852 263 1115 906 NJM2267M (TE2) IC853 262 0707 901 TC4053BF (TAPE) IC854 262 2534 907...
Page 99
DVD-2900 3 7 6 3 1 5 1 5 0 Parts List 1 3 9 4 2 2 9 6 5 1 3 (Europe model only) WARNING: Parts marked with this symbol have critical characteristics. Use ONLY replacement parts recommended by the w w w manufacturer.
Page 100
DVD-2900 PARTS LIST OF EXPLODED VIEW 3 7 63 1515 0 L 13942296513 u163 http://www.xiaoyu163.com...
Page 102
DVD-2900 3 7 6 3 1 5 1 5 0 Parts List 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...
Page 103
DVD-2900 PARTS LIST OF DVD MECHANISM UNIT 3 7 63 1515 0 Note : The symbols in the column “Remarks” indicate the following destinations. E3 : U.S.A. & Canada model 3370118001 DVD MECHA (TD-5HP-D3) E2 : Europe model JP : Japan model Ref.
Page 104
DVD-2900 3 7 63 1515 0 Ref. No. Part No. Part Name Remarks Q'ty SPECIAL SCREW (FRONT) SPECIAL SCREW (REAR) 9KB 7P02 4 TRAY-SPRING-VXF 9KC 2P03 1 PLATE-RE-2HPC 9KC 2P03 2 WF-PLATE-RE-2HPC 9KS 20P1 04 PRECISION SCREW 2X4(P) TYPE1...
Page 105
DVD-2900 3 7 6 3 1 5 1 5 0 With Cemedine 575, glue 3 joint parts of Clamper-L and H hooks. (0.05mg each x 3) *As for greasing to the R rail groove and groove's side edge, apply grease to the outer face "intentionally".
Page 106
DVD-2900 PACKING VIEW 3 7 63 1515 0 PARTS LIST OF PACKING & ACCESSORIES L 13942296513 u163 http://www.xiaoyu163.com...
Page 108
DVD-2900 MEASURING METHOD AND WAVEFORMS 3 7 63 1515 0 To check the waveforms on the Main P.W.B., the GND (-) probe of the oscilloscope to “Vref” point. NOTES Measuring Disc: DVD/DVDT-S01 or TDV-520A CD/TCD-784 (It is better to use wires for extending between the probe and test points.)
Page 109
DVD-2900 WAVEFORMS 3 7 63 1515 0 DVD PLAY Disc: TDV-520A CD PLAY DISC DETECT (CD) FSCON TSCON RFAC VC16 MIRR DVD PLAY (INNER) CD PLAY Disc: TCD-784 RFAC VC16 CD PLAY (INNER) DVD LOADING PLAY L 13942296513 FSCON...
Page 111
DVD-2900 3 7 63 1515 0 NOTE FOR SCHEMATIC DIAGRAM WARNING: Parts marked with this symbol have critical charac- teristics. Use ONLY replacement parts recommended by the manufacturer. CAUTION: 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 112
DVD-2900 SCHEMATIC DIAGRAMS (1/9) 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 COMMON SIGNAL (VIDEO/AUDIO(PCM)) SCHEMATIC DIAGRAMS (1/9) GU-3494 MAIN UNIT(1/3)
Page 113
DVD-2900 SCHEMATIC DIAGRAMS (2/9) 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 COMMON SIGNAL (VIDEO/AUDIO(PCM)) AUDIO SIGNAL (DSD) SCHEMATIC DIAGRAMS (2/9) GU-3494 MAIN UNIT(2/3) http://www.xiaoyu163.com...
Page 114
DVD-2900 SCHEMATIC DIAGRAMS (3/9) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w COMMON SIGNAL (VIDEO/AUDIO(PCM)) u 1 6 3 VIDEO SIGNAL AUDIO SIGNAL (PCM)
Page 115
DVD-2900 SCHEMATIC DIAGRAMS (4/9) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w (DSD PLAY) u 1 6 3 AUDIO SIGNAL (PCM) SCHEMATIC DIAGRAMS (4/9) GU-3495 AUDIO UNIT http://www.xiaoyu163.com...
Page 116
DVD-2900 SCHEMATIC DIAGRAMS (5/9) 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 SCHEMATIC DIAGRAMS (5/9) GU-3496-1 POWER UNIT GU-3496-7 I/F UNIT...
Page 117
DVD-2900 SCHEMATIC DIAGRAMS (6/9) 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 SCHEMATIC DIAGRAMS (6/9) GU-3496-2 DISPLAY UNIT GU-3496-4 P. SW UNIT...
Page 118
DVD-2900 SCHEMATIC DIAGRAMS (7/9) 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 VIDEO SIGNAL SCHEMATIC DIAGRAMS (7/9) GU-3497 VIDEO PWB UNIT(1/2)
Page 119
DVD-2900 SCHEMATIC DIAGRAMS (8/9) 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 VIDEO SIGNAL SCHEMATIC DIAGRAMS (8/9) GU-3497 VIDEO PWB UNIT(2/2)
Page 120
DVD-2900 SCHEMATIC DIAGRAMS (9/9) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 VIDEO SIGNAL SCHEMATIC DIAGRAMS (9/9) GU-3343-1 SCART UNIT (Europe model only) w w w u 1 6 3...
Need help?
Do you have a question about the DVD-2900 and is the answer not in the manual?
Questions and answers