McIntosh MVP-841 Service manual
DVD/VIDEO CD/CD PLAYER
CONTENTS
Performance Specifications........................................ 2
Notes ......................................................................... 2
Safety Information..................................................... 2
Rear Panel.................................................................. 3
Section Location ........................................................ 3
Block Diagram........................................................... 4
Interconnection Diagram ...................................... 5 - 6
SERVICE MANUAL
Main .......................................................................... 7
Connector Schematic and PCB .................................. 8
A/V Power Supply Schematic and PCB ............... 9 - 14
Display Schematic and PCB.............................. 15 - 18
Parts List ............................................................ 19 - 20
Exploded View and Parts List............................. 21 - 22
Repacking Instructions ............................................. 23
PERFORMANCE SPECIFICATIONS
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.
VIDEO SPECIFICATIONS
Signal System: NTSC
Component Video Y Output Level: 1Vp-p (75 ohm)
Component Video PB Output Level: 0.7Vp-p (75 ohm)
Component Video PR Output Level: 0.7Vp-p (75 ohm)
Output Connector: RCA Jack (Y: Green, PB: Blue, PR: Red)
S-Video Output Level: 1Vp-p (75 ohm)
S-Video C Output Level: 0.286Vp-p (75 ohm) (NTSC)
Output Connector: Mini DIN
Video Output Level: 1Vp-p (75 ohm)
Output Connector: RCA Jack
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)
DIGITAL AUDIO OUTPUT
Optical: -15dbm to -21dbm
NOTES
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).
Output Connector: Optical Connector
Coaxial: 0.5V p-p/75 ohm
Output Connector: RCA Jack
Digital Signal Format: 44.1kHz, 48kHz and 96kHz
PICKUP
Laser Power: CLASS II
Laser Beam Wavelength: 655nm
GENERAL SPECIFICATIONS
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 MVP841 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).
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 recommended by the manufacturer.
SAFETY INFORMATION
CAUTION: The use of optical instruments with this
product will increase eye hazard.
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.
Laser output: 0.65mW
Wavelength: 665nm
This product utilizes an embedded class 2 laser (CFR).
2
REAR PANEL
SECTION LOCATIONS
MVP841
TOP VIEW WITH COVER REMOVED
3
BLOCK DIAGRAM
4
INTERCONNECT
MVP841
5
6
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