LEM PEGASUS 118 - User Manual

11
11
1
Index
Soldering point.
Male connector.
Female connector.
M/F faston connector.
Test point.
Supply voltage. Logic supply ground.
Analog supply ground.
Chassis ground.
Earth ground.
Flag joined with one or more flags
GENERALMUSIC S.p.A. Sales Division: 47842 S.Giovanni in Marignano (RN) ITALY - Via delle Rose, 12
Phone +39(0)541/959511 - Fax +39(0)541/957404 - Internet: www.generalmusic.com
Technical Specification.2
Amplifier Test Procedures & Adjustment.3
OS Upload & Upgrade Instructions, Reset Memory and OS Model Inquiry.
7
8 Input & Controls, Display, Interface, AD/DA Converter and DX Board Schematics.
9
RSC Serial Converter, Block Diagram.
10 Supply and Amplifier Board Schematics.
11 Supply and Amplifier Board Layouts.
12 Spare Part List.
Input & Controls, Display, Interface, AD/DA Converter and DX Board Layouts.
4
Pegasus/Poseidon Test Procedures. 5
with the same signal name inscribed.
ATTENTION Observe precautions when handling electrostatic sensitive devices.
Notice
Service must be carried out by qualified personnel only. Any tampering carried out by unqualified personnel during the guarantee period
will forfeit the right to guarantee.
For a correct operation of the instrument, after having switched off, be careful to wait at least 3 seconds before switching on again.
To improve the device's specifications, the schematic diagrams may be subject to change without prior notice.
All components marked by this symbol have special safety characteristics, when replacing any of these components use only
manufacturer's specified parts.
The (µ) micro symbol of capacitance value is substituted by U.
The (
Ω ) omega symbol of resistance value is substituted by E.
The electrolytic capacitors are 25Vdc rated voltage unless otherwise specified.
All resistors are 1/8W unless otherwise specified.
All switches shown in the "OFF" position. All DC voltages measured to ground with a voltmeter 20KOhm/V.
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✒
☎
®
SERVICE MANUAL
code 270282
Digital integrated loudspeaker system

Summary

Notice

TECHNICAL SPECIFICATIONS

LOUDSPEAKER SPECIFICATIONS

Details for loudspeaker components, cabinet, construction, weight, and dimensions.

PROCESSOR;AMPLIFIER SPECIFICATIONS

Details for processor and amplifier parameters like D/A, crossover, EQ, and output.

VERY IMPORTANT! READ THESE NOTES ENTIRELY BEFORE PROCEED TO ANY REPAIRING

PRECAUTION

Essential precautions and safety measures for handling and testing the equipment.

MOSFET REPLACEMENT NOTE

OS UPLOAD OR UPGRADE INSTRUCTIONS

RESET MEMORY AND OS MODEL INQUIRY

Procedure to reset memory and check the installed OS model version.

TESTING PROCEDURE

General setup and remarks for executing the testing procedures.

CONTROL PANEL TEST

AMPLIFIER TEST PROCEDURES

EEPROM TEST

RAM TEST

RS232 SERIAL PORT TEST

RS485 IN SERIAL PORT TEST

RS485 OUT SERIAL PORT TEST

FUNCTIONAL TEST

Comprehensive test to verify overall amplifier functionality and output.

CH1 LOW AMPLIFIER TEST

Tests the low-frequency amplifier channel (CH1) output signal.

CH2 LOW AMPLIFIER TEST

Tests the low-frequency amplifier channel (CH2) output signal.

SIGNAL;NOISE RATIO TEST

BURN-IN TEST

BLOCK DIAGRAM

Spare Part List

LEM PEGASUS 118 Specifications

General

Brand	LEM
Model	PEGASUS 118
Category	Speaker System
Language	English