LEM Hurricane H300 - User Manual

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 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 data2
Passive versions3
Checking & adjustement
9
10 H350A schematics
11
H300A, H300MA schematics
12 Spare part list
H350SA, H400SA schematics
4
H100MA, H150A, H200A, H200MA schematics8
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.
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service manual
schematic diagrams
CODE: 270306 version 1.02
Powered & passive loudspeaker systems
hurricane

Summary

Schematic Diagrams - Crossover Boards

H150;H200 Series Crossover Schematics

H300;H350 Series Crossover Schematics

H350 S;H400 S Series Crossover Schematics

H500 Crossover Schematic

General Precaution and Setup Procedures

H100 MA Amplifier Checking and Adjustments

Step-by-step procedures for checking and adjusting the H100MA amplifier's performance.

H150 A;H200 A;H200 MA Amplifier Checking and Adjustments

Step-by-step procedures for checking and adjusting the H150A, H200A, H200MA amplifiers.

H300 A;H300 MA Amplifier Checking and Adjustments

H350 A Amplifier Checking and Adjustments

Step-by-step procedures for checking and adjusting the H350A amplifier's performance.

H350 SA;H400 SA Amplifier Checking and Adjustments

Troubleshooting Advice and Reliability Checks

H100 MA, H150 A, H200 A, H200 MA Schematics

Input, Amplifier, and Supply Boards

Schematic diagrams for the input, amplifier, and supply boards for H100MA, H150A, H200A, H200MA.

Crossover Boards Schematics

Schematic diagrams for the crossover boards used in H150A, H200A, H200MA models.

H350 SA, H400 SA Schematics

Input, Crossover, and Amplifier Schematics

Schematic diagrams for input, crossover, and amplifier boards for H350SA and H400SA.

Power Supply Board Schematic

Schematic diagram for the power supply board of H350SA and H400SA models.

Spare Part List - Overview

Spare Part List - Speakers and Cabinetry

Spare Part List - Crossovers and Cables

Spare Part List - Hardware and Notes

LEM Hurricane H300 Specifications

General

LF Driver	12" woofer
Coverage Pattern	90° x 60°
Enclosure Material	Plywood
Nominal Impedance	8 ohms
Sensitivity	98 dB