Infinity PS 8 Service Manual
This is the 26 pages manual for Infinity PS 8 Service Manual.
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Extracted text from Infinity PS 8 Service Manual (Ocr-read)
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CONTENTS BASIC SPECIFICATIONS . . . . . . . . . ……………….…………….... .. . .\ . . . 1 DETAILED SPECIFICATIONS . . . . . . . . . . . . . . . . . …….…. . .. .. .. . . . . . 2 CONTROLS & CONNECTIONS . . . . . . . . . . . …………….……………. . . .\ 3 OPERATION……. . . . . .. . . . . . . . .. .. . . ………………………\ …... . . . . . . . 5 UNIT EXPLODED VIEW . . . . ………………………………….………….... . … . 6 AMPLIFIER EXPLODED VIEW . . . . …………………………….……….... . … . 7 BLOCK DIAGRAM .. . . . . . . . . . . . . . .. . . . . ………….……………….. . . . \ . . 8 PS-8 TEST SET UP AND PROCEDURE . . . . . . ……….…………………. . 9 ELECTRICAL PARTS LIST …………. .... . .. . . …………………………. . \ . . 10 PCB DRAW INGS (serial # ME0683-16316 and below) ……………….. . . . . . 13 PCB DRAW INGS (serial # ME0683-16317 and above) .. .. ………….. . . . . . 15 IC – TRANSISTOR PINOUTS ………………………………………………\ ... . 17 SCHEMATIC DIAGRAMS (serial # ME0683-16316 and below) ……….…. . . .18 SCHEMATIC DIAGRAMS (serial # ME0683-16317 and above). . . .. ….…. . .20 SCHEMATIC DIAGRAMS (Rev 2) . . . . . . ……….………………….………. . 2\ 2 PACKAGE………... ……………………………………\ …………………….…. .25 PS-8 SPECIFICATIONS Frequency Response: 35Hz – 150Hz (±3dB) Maximum Amplifier Output: 100 watts RMS (20Hz – 150Hz with no more than 0.1% THD) Crossover Frequencies: 50Hz – 150Hz, 24dB/octave, continuously variable Driver: 8" (203mm) MMD ™ DCR = 4.3 Ω Dimensions 17-1/2" x 10-5/8" x 16-3/4" (H x W x D) (445mm x 270mm x 426mm) Weight: 33 lb (15kg) Infinity continually strives to update and improve existing products, as well as create new ones. The specifications and construction details in this and related Infinity publications are therefore subject to change without notice. PS- 8 1
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INFINITY PRIMUS PS-8 100W Powered Sub/ Plate Amp LINE VOLTAGEYes/No Hi/Lo Line Unit Notes US 120VAC/60Hz Yes 108-132 Vrms Normal Operation Europe 220-240VAC, 50-60Hz Yes 220-240 Vrms Normal Operation Paramete r Specification Unit QA Test Limit s Conditions Notes Amp Section Type (Class AB, D, other) AB ABn/a Load Impedance (speaker) 4 Ohmsn/a Nominal Rated Output Power 100 Watts95 Single input driven THD@ Rated Power 0.5 %1 22K filter THD @ 1 Watt 0.1 %0.5 22K filter DC Offset 10 mV-DC50 @ Speaker Output Damping factor >100 DF50 Measured at speaker terminals Output power 90 Watts THD 0.1 % Input Sensitivity Input Frequency 50 Hz50 Nominal Freq. Line Input (L&R) 171 mVrms±2dB To Rated Power Single input driven, AP Zo=600 Ohms LFE Input 117 mVrms±2dB To Rated Power LFE input driven only, AP Zo=600 Ohms Speaker/Hi Level Inpu 2.4 Vrms±2dB To Rated Power Single input driven Signal to Noise SNR-A-Weighted 100 dBA85 rel. to rated power A-Weighting filter SNR-unweighted 80 dBr 80 rel. to rated power 22K filter SNR @ 1W-unweighted 60 dBr 60 rel. to 1W Output 22K filter Residual Noise Floor 1.5 mVrms 2.5 Volume @max, using RMS reading Residual Noise Floor 1 mVrms(max) 2 Volume @max, w/ A/P Swept Bandpass Measurement (Line freq.+ harmonics) Input Impedance Line input L&R , LFE >10 K ohmsn/a Nominal Speaker/Hi Level Inpu 4.7 K ohmsn/a Nominal Filters Low Pass (fixed or variable) Variable --±2dB Subsonic filter (HPF) Hz±2dB Limite r (yes/no) NO --n/a Features LFE Input, Phase Switch, ATO YESfunctional Volume pot Taper (lin/log) LOG -- functional Input Configuration Line In (L,R) L ,R -- functional RCA inputs: L , R Summed to Mono Line level in LFE LFEfunctional Spkr/Hi Level In (L,R) L,R -- functional L R Summed to Mono Spkr Out: Level out (L,R)Hi Pass Filter 120 VAC Version NO 120VAC version is not provided with Spkr. Output connectors 230 VAC Version YES functional This feature exists in 230VAC Model Direct by pass from Speaker in Signal Sensing (ATO) Auto-Turn-On (yes/no) YES -- functional ATO Input Frequency 50 Hz functional ATO Level 2 mV functional 2mV@50Hz into Line Input w/ 1 ch. driven ATO Level Speaker in 35 mV functional 35mV @ 50 Hz into the speaker input, single input driven. ATO Turn-on time 5 ms functional Amp connected and AC on, then input signal applied Auto Mute/ Turn-OFF Time 10 minutes functional T before muting, after signal removed Auto turn of time (T) must be 5 > T <15 Power on Delay time 3 sec. functional AC Power Applied Transients/Pops ATO Transient 5 mV-peak 10 @ Speaker Outputs Turn-on Transient 50 mV-peak 100 @ Speaker Outputs AC Line cycled from OFF to ON Turn-off Transient 50 mV-peak 100 @ Speaker Outputs AC Line cycled from ON to OFF Efficiency Stand-by Input Power 12 Watts 15 @ nom. line voltage Maximum allowable input power under nominal Input voltage and frequency, HOT or COLD operation. Power Cons.@rated power 195 Watts 210 @ nom. line voltage 100 Watts @ 4 Ohms Protection Short Circuit Protection YES -- functional Direct short at output Thermal Protection 65 deg. C -- functional @1/8 max unclipped Power Temperature rise should not exceed 35K rise DC Offset Protection YES -- functional DC present at Speaker Out leads Relay or crowbar (for driver/fire protection) Line Fuse Rating External fuse with UL/SEMKO rated holder 120 VAC 2.5 Amps Type-T or Slo Blo 230 VAC 1.25 Amps Type-T, Low breaking capacity ALL SPECS SHOULD BE MEASURED AT NOMINAL LINE VOLTAGE. PS- 8 2