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A/V CONTROL CENTER
CONTENTS
Performance Specifications ................................... 2 - 3 S-Video Schematic and PCB .............................. 42 - 47
Notes ......................................................................... 3 Video Schematic and PCB ................................. 48 - 50
Rear Panel .................................................................. 4 Input Lamp Schematic and PCB ........................ 51 - 56
Section Location ........................................................ 4 Component Video Schematic and PCB ............ 57 - 60
Block Diagram ...................................................... 5 - 8 Tuner AM/FM Alignment Procedure ................. 61 - 62
Interconnection Diagram .................................... 9 - 11 Tuner/RAA1 Schematic and PCB ....................... 63 - 66
Display Schematic and PCB ............................... 12 - 19 Parts List ............................................................ 67 - 72
Surround Schematic and PCB ............................ 19 - 34 Exploded Views and Parts Lists .......................... 73 - 75
Data Schematic and PCB ....................... 35, 36, 39 - 41 Repacking Instruction .............................................. 77
SERVICE MANUAL
PERFORMANCE SPECIFICATIONS
FM Tuner Harmonic Distortion
0.5% maximum at 50% modulation
Useable Sensitivity
14dBF which is 1.4uV across 75 ohms Frequency Response
50Hz to 6kHz NRSC
50dB Quieting Sensitivity
Mono: 19dBF which is 2.4uV across 75 ohms Adjacent Channel Selectivity
Stereo: 35dBF which is 15uV across 75 ohms 45dB minimum IHF
Signal To Noise Ratio Image Rejection
Mono: 75dB 65dB minimum from 540 to 1600kHz
Stereo: 70dB
IF Rejection
Frequency Response 80dB minimum
Mono: +0, -1dB from 20 to 15,000Hz
Stereo: +0, -1dB from 20 to 15,000Hz
Audio
Harmonic Distortion
Mono: 0.3% at 100Hz, 0.3% at 1,000Hz, 0.3% at 10,000Hz Frequency Response
Stereo: 0.45% at 100Hz, 0.45% at 1,000Hz, 0.65% at 10,000Hz Stereo:
Left and Right Small speakers: 80Hz-20,000Hz
Intermodulaton Distortion Subwoofer: 20Hz-80Hz
Mono: 0.25%
Stereo: 0.45% Left and Right Large speakers: 20Hz-20,000Hz
Subwoofer: OFF
Capture Ratio
1.2dB Pro-Logic II: (Movie Processing Mode)
Left, Center, Right, Small speakers: 80Hz-20,000Hz
Alternate Channel Selectivity Surround Small speakers: 80Hz-7kHz
75dB Subwoofer: 20Hz-80Hz
(Music Processing Mode)
Spurious Response Left, Center, Right, Large speakers: 20Hz-20,000Hz
100dB Surround Large speakers: 20Hz-20,000Hz
Subwoofer: OFF
Image Response
75dB Dolby Digital and DTS:
Left, Center, Right, Large speakers: 80Hz-20,000Hz
RF Intermodulation Surround Large speakers: 20Hz-20,000Hz
65dB Subwoofer: OFF
Stereo Separation Left, Center, Right Large speakers: 20Hz-20,000Hz
45dB at 100Hz, 45dB at 1,000Hz, 35dB at 10,000Hz Surround Large speakers: 20Hz-20,000Hz
Subwoofer: 20Hz-80Hz
SCA Rejection
65dB External Input
Left, Center, Right, Left Surround, Right Surround:
20Hz-20,000Hz
AM Tuner Subwoofer: 20Hz-20kHz (no LP filtering)
Sensitivity Rated Output
20uV external antenna input All Modes: 2.0Vrms for full bit digital input
Signal To Noise Ratio Input Impedance
48dB at 30% modulation 22k ohms
58dB at 100% modulation
2
MX134
PERFORMANCE SPECIFICATIONS con't
Output Impedance General Specifications
47 ohms at all outputs
Power Requirements
Maximum Output Voltage 100 Volts, 50/60Hz at 65 watts
9.5 Vrms 110 Volts, 50/60Hz at 65 watts
120 Volts, 50/60Hz at 65 watts
Total Harmonic Distortion 220 Volts, 50/60Hz at 65 watts
0.005% at all outputs 230 Volts, 50/60Hz at 65 watts
240 Volts, 50/60Hz at 65 watts
Sensitivity
Analog Input: 400mV for 2.0V output NOTE: Refer to the rear panel of the MX134 for the correct
voltage.
Signal To Noise Ratio