McIntosh MX119 User manual

MX119
SERVICE MANUAL
Performance Specifications ................................... 2 - 3
Notes ......................................................................... 3
Rear Panel .................................................................. 3
Section Location ........................................................ 4
BlockDiagram ...................................................... 5 - 8
Interconnection Diagram .................................... 9 - 10
Display Schematic and PCB ............................... 11 - 18
Surround Schematic and PCB ............................ 19 - 32
Data Schematic and PCB................................... 33 - 36
S-Video Schematic and PCB.............................. 37 - 40
Video Schematic and PCB................................. 41 - 44
Input Schematic and PCB .................................. 45 - 50
ComponentVideo Schematic and PCB ............. 51 - 54
Tuner Schematic and PCB ................................. 55 - 56
Tuner AM/FM Alignment Procedure.................. 57 - 58
RAA1 Schematic and PCB ................................. 59 - 60
Parts List ............................................................ 61 - 76
Exploded Views and Parts Lists .......................... 77 - 80
Repacking Instruction .............................................. 81
CONTENTS
A/V CONTROL CENTER
Serial Number VS1001 And Above
SERIAL NO. VS1001 And Above

PERFORMANCE SPECIFICATIONS
FMTuner
UseableSensitivity
14dBF which is 1.4uV across 75 ohms
50dBQuietingSensitivity
Mono: 19dBF which is 2.4uV across 75 ohms
Stereo: 35dBF which is 15uV across 75 ohms
SignalTo Noise Ratio
Mono:75dB
Stereo:70dB
FrequencyResponse
Mono:+0,-1dB from20to15,000Hz
Stereo:+0,-1dBfrom20 to15,000Hz
HarmonicDistortion
Mono:0.3%at100Hz,0.3% at1,000Hz,0.3%at10,000Hz
Stereo:0.45% at100Hz, 0.45%at1,000Hz,0.65%at10,000Hz
IntermodulatonDistortion
Mono:0.25%
Stereo:0.45%
CaptureRatio
1.2dB
AlternateChannelSelectivity
75dB
SpuriousResponse
100dB
ImageResponse
75dB
RFIntermodulation
65dB
StereoSeparation
45dBat 100Hz,45dB at1,000Hz, 35dBat 10,000Hz
SCARejection
65dB
AMTuner
Sensitivity
20uV external antenna input
SignalTo Noise Ratio
48dBat30%modulation
58dBat100%modulation
HarmonicDistortion
0.5%maximum at50%modulation
FrequencyResponse
50Hzto6kHzNRSC
AdjacentChannelSelectivity
45dBminimumIHF
ImageRejection
65dBminimumfrom540to1600kHz
IFRejection
80dBminimum
Audio
FrequencyResponse
Stereo: LeftandRight Smallspeakers:80Hz-20,000Hz
Subwoofer:20Hz-80Hz
LeftandRight Largespeakers:20Hz-20,000Hz
Subwoofer:OFF
Pro-Logic II: (Movie Processing Mode)
Left,Center,Right,Smallspeakers:80Hz-20,000Hz
SurroundSmallspeakers: 80Hz-7kHz
Subwoofer:20Hz-80Hz
(Music Processing Mode)
Left,Center,Right,Large speakers:20Hz-20,000Hz
SurroundLargespeakers: 20Hz-20,000Hz
Subwoofer:OFF
DolbyDigitalandDTS:
Left,Center,Right, Smallspeakers:80Hz-20,000Hz
SurroundSmallspeakers:80Hz-20,000Hz
Subwoofer:20Hz-80Hz
Left,Center,RightLargespeakers: 20Hz-20,000Hz
SurroundLargespeakers: 20Hz-20,000Hz
Subwoofer:20Hz-80Hz
ExternalInput
Left, Center, Right, Left Surround, Right Surround:
20Hz-20,000Hz
Subwoofer:20Hz-20kHz (noLPfiltering)
RatedOutput
AllModes:2.0Vrmsforfullbitdigitalinput
InputImpedance
HighLevel:22k ohms
Phono:47kohms,65pf
2

MX119
3
OutputImpedance
100 ohms unbalanced
200 ohms balanced
MaximumOutputVoltage
9.5Vrms
TotalHarmonicDistortion
0.005% at all outputs
Sensitivity
AnalogInput:400mVfor2.0V output
SignalTo Noise Ratio –All Outputs
0.005%maximumfrom 20Hzto20,000Hzat ratedoutput.
MaximumInputSignal
AnalogInput:6Vrms
VoltageGain
Analog Input to Output: 14db
FrequencyResponse
+0,-0.5dBfrom20Hzto20,000Hz
Tone Controls
+12dB,-12dBfrom flat setting
GeneralSpecifications
PowerRequirements
100Volts, 50/60Hzat65 watts
110Volts,50/60Hzat 65 watts
120Volts, 50/60Hzat65 watts
220Volts, 50/60Hzat65 watts
230Volts, 50/60Hzat65 watts
240Volts, 50/60Hzat65 watts
NOTE: Refer to the rear panel of the MX119 for the correct
voltage.
OverallDimensions
Widthis17-1/2 inches (44.45cm)
Heightis7-5/8inches(19.37cm) including feet
Depth is 18-3/4 inches (47.63cm) including the Front Panel
and Knobs
Weight
27 pounds (12.25kg) net, 46 pounds (20.87kg) shipping
weight
PERFORMANCE SPECIFICATIONS con’t
1. The heavy lines 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.ACinputat120volts,50/60Hz.
b. All voltages are +/-10% with respect to ground. A
high impedance (10 megaohm) voltmeter must be used.
4. On PC board drawings, Square pad indicates:
a.PolarizedCapacitors-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.
NOTES

4
SECTION LOCATION
REAR PANEL

MX119
56
BLOCK DIAGRAM

7 8
BLOCK DIAGRAM con’t

MX119
INTERCONNECT
910
1

DISPLAY 050167 SH 1 OF 2
2A
BC
11 12

MX119
13 14
DISPLAY 050167 SH 2 0F 2
2A
BC

15 16
2A
DISPLAY 050167
CONTROL SECTION

MX119
DISPLAY KEYBOARD SECTION 050053
2C
DISPLAY LED SECTION 050169
2B
17 18

19 20
SURROUND 050168 SH 1 OF 6
3

MX119
21 22
SURROUND 050168 SH 2 OF 6
3

23 24
3
SURROUND 050168 SH 3 OF 6

MX119
25 26
SURROUND 050168 SECTION 4 OF 6
3

27 28
SURROUND 050168 SH 5 OF 6
3

MX119
SURROUND 050168 SH 6 OF 6
3
29 30

SURROUND 050168
3
31 32

MX119
33 34
DATA 050164 SH 1 OF 2 4

35 36
DATA 050164 SH 2 OF 2
4