McIntosh MVP 831 Service Manual

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General Specifications Video Specifications Digital Output Optical: -15dbm to -21dbm Coaxial: 0.5V p-p/75 ohm Digital Signal Format Sampling Frequency: 44.1kHz & 48kHz Transport Laser Beam Wavelength: 655nm Laser Power CLASS II Power Requirements 100 Volts, 50/60Hz at 28 watts 110 Volts, 50/60Hz at 28 watts 120 Volts, 50/60Hz at 28 watts 220 Volts, 50/60Hz at 28 watts 230 Volts, 50/60Hz at 28 watts 240 Volts, 50/60Hz at 28 watts Note: Refer to the rear panel of the MVP831 for the correct voltage. Dimensions Front Panel:17-1/2 inches (44.5cm) wide, 5-3/8 inches (13.7cm) high, depth behind front mounting panel is 15 inches (38.1cm) including clearance for connectors. Panel clearance required in front of mounting panel is 3/4 inch (1.9cm). Note: When the DVD/CD tray is opened, the panel clearance required in front of mounting panel is 6-3/4 inches (17.2cm). Weight 20 pounds (9.0Kg) net, 34 pounds (15.4Kg) in shipping carton Signal System NTSC S-Video Y Output Level 1Vp-p (75 OHM) S-Video C Output Level 0.286Vp-p (75 OHM) (NTSC) Video Output Level 1Vp-p (75 OHM) Audio Specifications Number of Channels 2 Output level 2.2Vrms DVD Frequency Response 4-22KHz (48KHz Sampling, Linear Audio) 4-44KHz (96KHz Sampling, Linear Audio) CD Frequency Response 4-20KHz CD Signal to Noise Ratio Better than 110dB (A-weighted) DVD Dynamic Range Better than 100dB (Linear Audio) CD Dynamic Range Better than 98dB Harmonic Distortion 0.003% (1KHz) Channel Separation Better than 110dB (1KHz)

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PERFORMANCE SPECIFICATIONS 2 VIDEO SPECIFICATIONS Signal System: NTSC S-Video Y Output Level: 1Vp-p (75 ohm) S-Video C Output Level: 0.286Vp-p (75 ohm) (NTSC) Video Output Level: 1Vp-p (75 ohm) AUDIO SPECIFICATIONS Number Of Channels: 2 Output Level: 2.2Vrms DVD Frequency Response 4-22kHz (48kHz Sampling, Linear Audio) 4-44kHz (96kHz Sampling, Linear Audio) CD Frequency Response: 4-20kHz CD Signal To Noise Ratio: Better than 110dB (A-weighted) DVD Dynamic Range: Better than 100dB (Linear Audio) CD Dynamic Range: Better than 98dB Harmonic Distortion: 0.003% (1kHz) Channel Separation: Better than 110dB (1kHz) GENERAL SPECIFICATIONS Digital Output Optical: -15dbm to -21dbm Coaxial: 0.5V p-p/75 ohmTransport Laser Power: CLASS II Laser Beam Wavelength: 655nm Digital Signal Format Sampling Frequency: 44.1kHz and 48kHz Power Requirements 100 Volts, 50/60Hz at 30 watts 110 Volts, 50/60Hz at 30 watts 120 Volts, 50/60Hz at 30 watts 220 Volts, 50/60Hz at 30 watts 230 Volts, 50/60Hz at 30 watts 240 Volts, 50/60Hz at 30 watts Note: Refer to the rear panel of the MVP831 for the correct voltage. Dimensions Front Panel:17-1/2 inches (44.5cm) wide, 5-3/8 inches (13.7cm) high, depth behind front mounting panel is 15 inches (38.1cm) including clearance for connectors. Panel clearance required in front of mounting panel is 3/4 inch (1.9cm). Note: When the DVD/CD tray is opened, the panel clearance required in front of mounting panel is 6-3/4 inches (17.2cm). 1. The heavy notes on the schematic denote the primary signal path. 2. Unless otherwise noted, all voltages indicated on the schematics are measured under the following conditions: a. AC input at 120 volts, 50/60Hz. b. All voltages are +/-10% with respect to ground. A high impedance (10 megaohm) voltmeter must be used. 3. Unless otherwise specified: a. Resistor values are in ohms. b. Capacitor values are microfarads (uF). c. Inductor values are in microhenries (uH).4. On PC board drawings, Square pad indicates: a. Polarized Capacitors - Positive b. Diodes - Cathode c. Others - Pin 1 5.WARNING Parts marked with the symbol have critical characteristics. Use only replacement parts recom- mended by the manufacturer. SAFETY INFORMATIONNOTES CAUTION: The use of optical instruments with this product will increase eye hazard. This product utilizes a class 1 laser. Invisible laser radiation is emitted from the optical pickup lens when the unit is turned on. 1. Do not look directly into the pickup lens. 2. Do not use optical instruments to look at the pickup lens. 3. Do not adjust the preset variable resistor on the optical pickup. 4. Do not disassemble the optical pickup unit. 5. Use of controls or adjustment or performance of procedures other than those specified herein may result in hazardous radiation exposure. 6. Replace optical pickup only with manufacturers specified type. LUOKAN 1 LASERLAITE KLASS 1 LASER APPARAT VAROITUS! Laitteen kayttaminen muulla kuin tassa kayttoohjeessa mainitulla tavalla saattaa altistaa kayttajan turvallisuusluokan 1 ylittavalle nakymattomalle lasersateiiylle. VARNING! Om apparaten anvands pa annat satt an i denna bruksanvisning specificerats, kan anvandaren utsattas for osynbg laserstraining, som overskrider gransen for laserklass 1. Laser output: 0.65mW Wavelength: 665nm This product utilizes an embedded class 2 laser (IEC825).

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