Yamaha DVR-C310 Service Manual
This service manual provides detailed information for the Yamaha DVR-C310 DVD Home Theater Sound System.
Important Notice
This manual is intended for authorized Yamaha retailers and their service personnel. It assumes familiarity with basic industry service procedures. Failure to follow safety and service procedures may result in personal injury or product damage. Service should only be performed by authorized personnel. The sale of this manual does not grant authorization. Specifications are subject to change without notice. Static discharge can damage components; ground yourself before handling the unit. Always turn the unit OFF during disassembly and part replacement.
Contents
- To Service Personnel: Pages 2-3
- Prevention of Electrostatic Discharge: Page 4
- Locale Management Information: Page 4
- System Composition: Page 5
- Front Panel: Page 5
- Rear Panel: Page 6
- Remote Control Panel: Page 6
- Specifications: Pages 6-7
- Dimensions: Page 7
- Internal View: Page 8
- Repair Notes: Page 8
- Disassembly Procedures: Pages 9-10
- Block Diagram: Page 12
- Wiring Diagram: Page 13
- Printed Circuit Boards: Pages 14-22
- Schematic Diagrams: Pages 23-37
- Replacement Parts List: Pages 38-39
To Service Personnel
Critical Components Information
Components marked with 'Z' have special characteristics and must be replaced with parts of identical specifications.
Leakage Current Measurement (For 120V Models Only)
After servicing, verify that all exposed conductive surfaces are properly insulated from supply circuits. Use a meter with 1500 ohms impedance shunted by 0.15μF. Leakage current must not exceed 0.5mA. Test with the AC plug in both polarities.
Chemical Content Notice
WARNING: The solder contains LEAD. Other components may contain chemicals known to cause cancer or reproductive harm. Do not place components in your mouth. Avoid prolonged skin contact with solder. Do not inhale solder fumes. Wash hands after handling components.
Laser Safety
WARNING: This unit contains a laser beam component that may emit invisible or visible radiation causing eye damage. Maintain a distance of at least 30 cm from the laser pick-up unit during servicing. Do not stare at the laser beam. Do not attempt to readjust or disassemble the laser pick-up unless specified. Use of controls or procedures other than those specified may result in hazardous radiation exposure.
Laser Emitting Conditions: When the top cover is removed and the unit is ON, the laser may emit a beam for 5-10 seconds to detect a disc. Do not service during this period. Laser emission stops if no disc is detected or when a disc is loaded.
Laser Diode Properties
| Type | Semiconductor laser GaAlAs |
| Wave length | 650 nm (DVD), 784 nm (VCD/CD) |
| Output Power | 7 mW (DVD/VCD/CD) |
| Beam divergence | 60 degrees |
Multilingual Warnings: The manual includes warnings in Finnish (VARO!), Swedish (VARNING!), German (VORSICHT), French (ATTENTION), Italian (VARO!), Norwegian (ADVARSEL), and Danish (ADVARSEL) regarding laser radiation exposure when the unit is open.
Warning for Power Supply
The primary side of the power supply carries live mains voltage even when the unit is switched OFF. This area is not shielded, so service personnel must take precautions to avoid touching copper tracks or components.
Note: Do not touch, remove, or re-adjust screws on the DVD mechanism. Handle the DVD mechanism with care as it is sensitive to shocks.
Prevention of Electrostatic Discharge
Static electricity can damage the laser diode. Use caution when servicing or handling the laser diode.
Grounding for Electrostatic Damage Prevention
- Worktable Grounding: Place grounded conductive material (sheet or iron sheet) on the work area.
- Human Body Grounding: Use an anti-static wrist strap to discharge static electricity from your body.
Handling of the Optical Pickup
- To prevent damage during transport and before installation, the laser diode ends are short-circuited. Remove shorts after installation.
- Do not use a tester to check the laser diode, as the tester's power supply can damage it.
Handling Precautions for the Traverse Unit (Optical Pickup)
- Handle the traverse unit gently; it is a high-precision assembly.
- Be cautious with flexible cables to avoid breakage.
- Do not adjust the semi-fixed resistor for laser power adjustment.
Locale Management Information
This DVD player responds to Locale Management Information recorded on DVD discs. If the disc's locale number does not match the player's, the disc cannot be played.
The product incorporates Macrovision Corporation's copyright protection technology. Use of this technology is intended for limited home viewing unless otherwise authorized. Reverse engineering or disassembly is prohibited.
System Composition
The DVX-C310 system consists of the DVR-C310 and NX-P300. The DVX-C310SW system consists of the DVR-C310 and NX-SW300. Diagrams of the DVR-C310 unit, NX-P300, NX-SW300, NX-F300, NX-S300, and NX-C300 are provided.
Front Panel
The front panel of the DVR-C310 features controls such as STANDBY/ON, VOLUME, INPUT selection (XM, DOCK, AUX, TUNER, DVD/CD), PLAY/CHANGE DISC, and display indicators.
Rear Panel
The rear panel of the DVR-C310 (U, C models) includes connectors for FM antenna (UNBAL, GND), AM antenna, XM DOCK, SYSTEM CONNECTOR (15-pin), TV IN, AUX IN, LINE OUT (TO NX-SW300), HDMI, and VIDEO OUT (DVD ONLY). It also displays safety warnings and compliance information (CLASS 1 LASER PRODUCT, FCC RULES, DOLBY LABORATORIES license, DTS license).
Remote Control Panel
A diagram shows the layout of the remote control, including power, playback controls (PLAY, STOP, PAUSE, FF, REW), navigation buttons (MENU, RETURN, UP/DOWN/LEFT/RIGHT, ENTER), input selection, volume, channel, and other function buttons.
Specifications
| Section | Specification | Details |
| TUNER SECTION | FM Tuning Range | 87.50 to 108.00 MHz |
| AM Tuning Range | 530 to 1700 kHz | |
| DISC SECTION | Laser Type | Semiconductor |
| Disc Diameter | 12cm / 8cm | |
| Video Decoding | MPEG-1 / MPEG-2 / DivX® 5, DivX® 4, DivX® 3 | |
| Video DAC | 12 bits/108 MHz | |
| Signal System | PAL / NTSC | |
| Video Format | 4:3 / 16:9 | |
| Composite Video Output | 1.0 Vp-p, 75 ohms | |
| S-video Output | Y - 1.0 Vp-p, 75 ohms; C - 0.3 Vp-p, 75 ohms | |
| Component Video Output | Y - 1.0 Vp-p, 75 ohms; PB/CB PR/CR - 0.7 Vp-p, 75 ohms | |
| Audio DAC | 24 bits / 192 kHz | |
| Frequency Response | 4 Hz to 20 kHz (44.1 kHz) | |
| General | Audio S/N | 4 Hz to 22 kHz (48 kHz), 4 Hz to 44 kHz (96 kHz) |
| Distortion | 105 dB | |
| Dynamic Range | 0.0035% | |
| 95 dB | ||
| AUDIO FORMAT | Digital | Dolby Digital/DTS/MPEG (Compressed Digital, 16, 20, 24 bits, fs 44.1, 48, 96 kHz) |
| PCM | ||
| MP3 (ISO 9660) | 24, 32, 56, 64, 96, 128, 256 kbps (fs 16, 22.05, 24, 32, 44.1, 48 kHz) | |
| WMA | 32 to 192 kbps, mono, stereo | |
| Full decoding of Dolby Digital and DTS multi-channel sound/ Dolby Surround Compatible Downmix from Dolby Digital multi-channel sound | ||
| Dolby Pro Logic II |
General
| Item | Specification |
| Power Supply Rating (U, C models) | 120 V, 60 Hz |
| Power Consumption | 20 W |
| Frequency Response | 20 Hz to 20 kHz / -3 dB (Front, Center, Surround) |
| Signal to Noise Ratio | > 100 dB |
| Input Sensitivity (AUX In, TV In) | 300 mV |
| Dimensions (W x H x D) | 435 x 75 x 434 mm (17-1/8" x 2-15/16" x 17-1/16") |
| Weight | 5.6 kg (12 lbs. 5 oz.) |
| Finish | Black color (U, C models), Silver color (U, C models) |
Accessories
- Remote Control x1
- Battery x2
- Indoor FM Antenna x1
- AM Loop Antenna x1
- Video Pin Cable (1.5m) x1
- System Control Cable (4m) x1
Dimensions
Diagrams show the unit's dimensions in millimeters and inches: Width 435 mm (17-1/8"), Height 75 mm (2-15/16"), Depth 434 mm (17-1/16").
Internal View
The internal view diagram identifies the following components:
- Power Supply Unit
- Front (4) P.C.B.
- DVD 5-Disc Changer Module
- XM P.C.B.
- AV P.C.B.
- HDMI P.C.B.
- Tuner
- MONO P.C.B.
- Front (2) P.C.B.
- Front (3) P.C.B.
- Front (1) P.C.B.
Repair Notes
- DVD 5-Disc Changer Module: This module, consisting of the CM unit and tray assembly, is supplied as a complete unit and cannot be serviced separately.
- P.C.B. ASS'Y: Components on the MONO P.C.B., FRONT P.C.B., AV P.C.B., XM P.C.B., HDMI P.C.B., and Power Supply Unit cannot be supplied separately and must be replaced as a whole.
- Power Supply Unit: Never touch the potentiometer (VR1) on the power supply unit.
Disassembly Procedures
The manual provides detailed step-by-step procedures for disassembling the unit, including removing the Top Cover, Front Panel, Bracket Front, various PCBs (FRONT (1-4), XM, HDMI, MONO, AV, Tuner), the DVD 5-Disc Changer Module, and related cable connections. It specifies screw types and removal sequences. Diagrams illustrate specific steps, such as manually ejecting the tray and handling the optical pickup.
Block Diagram
The block diagram illustrates the system's architecture, showing the interconnection of major functional blocks including the Tuner Module, Front Microprocessor, HDMI, MONO, AV, DVD 5-Disc Changer Module, XM, SYSTEM CONNECTOR, and Power Supply Unit, along with their respective inputs and outputs.
Wiring Diagram
The wiring diagram visually represents the electrical connections between various PCBs and components, detailing signal paths and connector pin assignments.
Printed Circuit Boards
The document includes top and bottom view diagrams for various printed circuit boards (PCBs) such as MONO, AV, HDMI, FRONT (1-4), XM, and Tuner modules. These diagrams show component placement and reference designators, intended for identification rather than replacement parts.
Schematic Diagrams
Extensive schematic diagrams are provided for different sections of the DVR-C310, including MONO, AV, HDMI, FRONT (1-4), XM, and Tuner circuits. These detailed diagrams illustrate the electronic circuitry and component interconnections.
Replacement Parts List
The manual includes an overall assembly diagram with numbered parts and a detailed replacement parts list. The list provides reference numbers, part numbers, descriptions, remarks (e.g., color codes, specifications), and market information for each component, including major assemblies like PCBs, the DVD 5-Disc Changer Module, and accessories.
