Infinity PS-8 Service Manual

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 DRAWINGS (serial # ME0683-16316 and below)……………….. . . . . . 13
PCB DRAWINGS (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) . . . . . . ……….………………….………. . 22
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 = 4.3Ω
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.
1
PS-8

Infinity PS-8 Specifications

General

Brand	Infinity
Model	PS-8
Category	Amplifier
Language	English