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DVD MECHANISM MODULE (LS2)
CX-3283
- This service manual describes the operation of the DVD mechanism module incorporated in models
listed in the table below.
- When performing repairs use this manual together with the specific manual for model under repair.
AVH-2400BT/XUEW5, AVH-2400BT/XUUW5, AVH-1400DVD/XUEW5
AVH-1400DVD/XUUW5
AVH-P1400DVD/XUUC, AVH-1450DVD/XMRC, AVH-1450DVD/XURD
AVH-1450DVD/XMRI, AVH-1490DVD/XMID
AVH-P3400BH/XUUC, AVH-P2400BT/XUUC, AVH-2450BT/XMRC
AVH-2450BT/XURD, AVH-2450BT/XMRI, AVH-2490BT/XMID
AVH-3400DVD/XUEW5, AVH-P3400DVD/XUUW5, AVH-P3450DVD/XURC
AVH-P3450DVD/XURD, AVH-P3450DVD/XURI, AVH-P3490DVD/XUID,
AVH-P3450DVD/XMRC, AVH-P3450DVD/XMRI, AVH-P3490DVD/XMID
AVH-P4400BH/XUUC, AVH-4400BT/XUEW5, AVH-P4450BT/XURC
AVH-P4450BT/XURD, AVH-P4450BT/XURI, AVH-P4490BT/XUID
DVH-340UB/XMEW5, DVH-340UB/XMUW5, DVH-345UB/XMRC
DVH-345UB/XMRD, DVH-345UB/XMRI, DVH-3490UB/XMID
CONTENTS
1. CIRCUIT DESCRIPTION.......................................................................................................................................................2
2. MECHANISM DESCRIPTION .............................................................................................................................................15
3. DISASSEMBLY....................................................................................................................................................................21
PIONEER CORPORATION
PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION
Model
1-1, Shin-ogura, Saiwai-ku, Kawasaki-shi, Kanagawa 212-0031, Japan
2011
CX-3283
Service manual
DVD Mechanism Module
CRT4836
CXK8003
CRT4837
CXK8003
CRT4838
CXK8003
CRT4839
CXK8002
CRT4840
CXK8002
CRT4842
CXK8001
K-ZZZ DEC.
ORDER NO.
CRT4843
2011 Printed in Japan
http://www.Datasheet4U.com
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Summary of Contents for Pioneer CX-3283
- Page 1 PIONEER CORPORATION 1-1, Shin-ogura, Saiwai-ku, Kawasaki-shi, Kanagawa 212-0031, Japan PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936...
- Page 2 CRG mechanism (equipped with the PU unit) or the mechanism module board is replaced. For details, refer to the Power Adjustment Specifications. CN1101 CDL1 CDL0 106:LPC02 13:78LD 22:IMON 105:CDMPD IC1501 MN2DS0018MA DVDL1 DVDL0 104:LPC01 14:65LD 103:DVDMPD PU Unit CX-3283 http://www.Datasheet4U.com...
- Page 3 Selector Gain switching G=0dB -6dB, 0dB, 9.5dB Gain switching Gain switching VIN7 3dB 9dB 6/7.5/9/10.5 dB 50k Hz MN2DS0018MA LSI After 10 bit ADC FE signal generating circuit 1+Pfbal0,1/0x0100 Fbal coarse Offset Cancel adjustment value 1-Pfbal0,1/0x0100 MN2DS0018MA LSI CX-3283 http://www.Datasheet4U.com...
- Page 4 G=0dB Selector -6dB, 0dB, 9.5dB E+G_E+F Gain switching Gain switching E+G_E+F 50k Hz 3dB, 9dB 6/7.5/9/10.5 dB MN2DS0018MA LSI After 10 bit ADC TE signal generating circuit 1+Ptbal0,1/0x0100 F+H_G+H Tbal adjustment value Offset Cancel 1-Ptbal0,1/0x0100 E+G_E+F MN2DS0018MA LSI CX-3283 http://www.Datasheet4U.com...
- Page 5 Process the tracking drive hold with an OFTR signal. 3. Pulling-in check Check that track jump is less than the specified number within the specified period. The pulling-in check will time out in 8.4 msec and be retried upon receiving a command from the microprocessor. CX-3283 http://www.Datasheet4U.com...
- Page 6 1-10 Interval Jump 11-500 Multi Jump 11-100 Multi Jump 501-1000 Combination of Multi Jump and Interval Jump 101-500 Combination of Multi Jump and Interval Jump 1001-Traverse Seek 501-Traverse Seek Here are the wavefoms of Track Jump. Tracking-on process CX-3283 http://www.Datasheet4U.com...
- Page 7 Inward Jump Outward Jump Multi Jump (by 32 tracks) for DVD Inward Jump Outward Jump Traverse Seek (by 1001 track) for DVD Inward Jump Outward Jump COP-COM Traverse Seek (by 10000 track) for DVD Inward Jump Outward Jump COP-COM CX-3283 http://www.Datasheet4U.com...
- Page 8 Then, it reads a Frequency Control Value (FCNT) and adjusts the VARI register so that the value will be equal to the target FCNT value. 1.3.3 FE Normalization Adjustment The function is to adjust the FE signal level so that the level measured during Focus Close will be 190LSB at the digital equalizer input stage. CX-3283 http://www.Datasheet4U.com...
- Page 9 1.5 DRC BLOCK (MN2DS0018MA : IC1501) The Digital Read Channel (DRC) is equipped with A/D converter, Digital Equalizer (DEQ), Adaptive equalizer, Viterbi detector, Digital PLL circuit, RISC interface, and peripheral circuits to read signals of an optical disc. CX-3283 http://www.Datasheet4U.com...
- Page 10 3.3 V ± 0.033 V IC1480 M12L64164A-5TG2M IC1004 NJM2885DL1-33 Flash-ROM 1 (Program) IC1402 S99-50243D-K Flash-ROM 2 (Data) IC1401 S99-50243D-K USB Circuit IC1951 TC7SZU04FU Other DVD1chip(3.3 V) DVD LSI 1.2 DC/DC(VCC12) IC1501 1.2 V ± 0.015 V MN2DS0018MA IC1953 DVD1chip(1.2 V) S-1135D12-A6 CX-3283 http://www.Datasheet4U.com...
- Page 11 By connecting a 48 MHz crystal oscillator with DVD-LSI (IC1501), it generates and supplies the clock to be used in the USB circuit with the clock generator in DVD-LSI (USB interface section). IC1501 DVD-LSI MN2DS0018MA 50pin USB_Clock IC1951 TC7SZU04 4pin(OUT_Y) 2pin(IN_A) R1952 1 Mohm X1950 CSS1760 48 MHz CX-3283 http://www.Datasheet4U.com...
- Page 12 It outputs a Composite Signal from DVD-LSI (IC1501) and finally outputs it from HOST IF (CN1901). LS2 Mechanism module VCC33 LPF & 75 ohm Video Driver 100 ohm Zo=300 ohm (*1) DVD LSI 12 pin(CVBS) (DV5) IC1501 200 ohm 11 pin 138pin : Composite CX-3283 http://www.Datasheet4U.com...
- Page 13 8 word burst forwarding Manual precharge CAS before RAS refresh (Auto refresh) Connection Structure of SDRAM DVD-LSI SDRAM IC1501 IC1480 MDQ[15:0] DQ[15:0] MA[11:0] A[11:0] BA[1:0] BA[1:0] NRAS XRAS NCAS XCAS DQM[1:0] DQM[1:0] NCSM MCKI CX-3283 http://www.Datasheet4U.com...
- Page 14 R 1544 46pin 3 pin(SDA) (I2C_SDA) 180 ohm DVD LSI R 1543 47pin (DV5) 4 pin(SCL) (I2C_SCL) 180 ohm IC1501 R 1951 144pin 9 pin(D-) (LOUT) 24 ohm R 1950 146pin 8 pin(D+) (ROUT) 24 ohm 10 pin(DGND) CX-3283 http://www.Datasheet4U.com...
- Page 15 (One of four types of the upper case is shown below as Model for DVH an example) Upper Chassis Upper Case Rear Bracket Damper Load Carriage Motor PU Unit The structure is as same as that of the model for DVH Spindle Motor DVD Core Unit Front Bracket CX-3283 http://www.Datasheet4U.com...
- Page 16 CRG mechanism The structure of the CRG mechanism is common regardless of the type of the Upper Case. Clamp Arm ASSY Roller Arm ASSY SW Arm Disc Guide ASSY CX-3283 http://www.Datasheet4U.com...
- Page 17 2. In the case of 12cm disc, as SW Arm spreads widely, SW1 switches from ON to OFF, and the microcomputer judges that it is 12cm disc. Load Carriage Motor PU Unit Rubber Roller SW Arm R DISC CX-3283 http://www.Datasheet4U.com...
- Page 18 2.3 DISC CENTERING MECHANISM 1. The 12cm disc passes under the Guide Pin and the Centering Pin, and is centered at the back position of mechanism. Centering Pin Guide Pin Guide Pin Guide Pin 12cm disc Centering Pin CX-3283 http://www.Datasheet4U.com...
- Page 19 Drive Gear and the carriage operation starts. Clamp Arm Detection Arm Switch Idle Arm Switch Lock Arm Roller Arm Rubber Roller Worm Wheel Switch Idle Gear Drive Lever Jumping Rack Rack Drive Gear Feed Screw Drive Gear Feed Screw Gear CX-3283 http://www.Datasheet4U.com...
- Page 20 1. When the Load Carriage Motor reverses and the Pick Up moves SW2 to the inner circumference (beyond ON), the eject operation stars in the inverse process of the above description. 2. Eject completion of 12cm disc: SW1 ONOFFONOFFON CX-3283 http://www.Datasheet4U.com...
- Page 21 1. Hold the designated parts (within the dashed line) of Upper Chassis and Front and Rear Bracket. 2. Do not hold the areas within the solid line or the CRG mechanism Section or insert a foreign object. Doing so may cause deformation. Handling – OK Handling – NG CX-3283 http://www.Datasheet4U.com...
- Page 22 2. Do not hold the areas within the solid line or the CRG mechanism Section or insert a foreign object. Doing so may cause deformation. 3. Holding the lateral face of Upper Chassis may result in deformation. So do not apply excessive force. (approximately 8 newtons and under) Handling – OK Handling – NG CX-3283 http://www.Datasheet4U.com...
- Page 23 3. Stop the motor when the PU reaches the intermediate circumference. (Note) If the PU moves to the outermost circumference, tooth jumping occurs. There is no problem, but prevent tooth jumping as much as possible. Fig.1 Fig.2 Left rear part of mechanism CX-3283 http://www.Datasheet4U.com...
- Page 24 Drive Lever to prevent tooth break of the pinion of Drive Gear in the installation. Fig.1 Joint Washer Drive gear Fig. 2 b. Open lock status /No Aperture a. Eject status / Aperture c. Empty clamp status with a gap without a gap CX-3283 http://www.Datasheet4U.com...
- Page 25 6. Solder the lead wires. 7. Bring the lead wires together according to "HOW TO TREAT LEAD WIRES". 8. Connect the FPC with the connector. 9. Remove the soldering that has shorted the land for the FPC. A-hook Fig.5 Fig.6 B-hook CX-3283 http://www.Datasheet4U.com...
- Page 26 Fig.3 Fig.4 Fig.6 The tips, red line and black line should be below the CORE UNIT surface. Upper limit Lower limit The tips of wires should be above the top surface of Chassis. (They must not contact it.) CX-3283 http://www.Datasheet4U.com...
- Page 27 Damper Fig.3 Fig.4 Fig.5 The shaft is inside the spring. OK: The upper part of Damper is flat. The tip of spring should be within the red circle. The shaft is outside the spring. NG: The Damper dents. CX-3283 http://www.Datasheet4U.com...
- Page 28 4. Hold A-parts of Roller ASSY and slide them to the left to remove. (Fig. 4) (Note) When the Disc Guide ASSY is reinstalled, make sure to install two Side Gears. Fig.3 Fig.4 Biasing Spring of Roller ASSY Roller ASSY CX-3283 http://www.Datasheet4U.com...
- Page 29 4. Turn the Detection Arm completely to the position of OK in Fig.4, and tuck the Clamp Arm ASSY. 5. Install the Right Biasing Spring of Clamp Arm. (Note) When the Clamp Arm ASSY is replaced, replace the Polyester Film with a new one. Fig.4 CX-3283 http://www.Datasheet4U.com...
- Page 30 Tuck A-part of Fig.6c while aligning the tip of the plate hole. Support Boss with the plate hole with fingers (Fig.6b) and install the Idle Arm. b: Engage the Idle Gear with the Worm Wheel. c: Adjust the positioning while checking the external form of plate CX-3283 http://www.Datasheet4U.com...
- Page 31 Judge sufficient movement of A-part based on the position of C-part of Fig.5. Biasing Spring of Drive Lever Fig.1 Fig.2 Fig.4 Fig.5 Idle Gear C-part: NG position Position of insufficient movement C-part: OK position Position of sufficient movement CX-3283 http://www.Datasheet4U.com...
- Page 32 2. Insert the flathead screwdriver under A-part of plate which is joined with the Damper, raise the plate and release the clinch. 3. Similarly, insert the flathead screwdriver under C-part, raise the plate, release the clinch and remove the Damper. Caution: Make sure to reinstall the clinch after repair. CX-3283 http://www.Datasheet4U.com...