LEM Hurricane H150 - 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
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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

Notice

ATTENTION Electrostatic Sensitive Devices

Warning regarding precautions for handling electrostatic sensitive devices.

General Precautions

Pre-Operation Checks & Setup

Visual checks and test instrument setup for amplifier maintenance.

H100 MA Checking & Adjustments

Technical Specifications & Setup

Model specs, initial setup, and conditions for H100MA testing.

Supply & Channel Testing

Verifying power supply voltages and channel signal amplification for H100MA.

Performance & Bias Adjustments

Tests for limiter, bandwidth, offset, S/N, and bias adjustment for H100MA.

H150 A H200 A H200 MA Checking & Adjustments

Technical Specifications & Setup

Model specs, initial setup, and conditions for H150A/H200A/H200MA testing.

Supply & Channel Testing

Verifying power supply voltages and channel signal amplification for these models.

Performance & Bias Adjustments

Tests for limiter, bandwidth, offset, S/N, and bias adjustment for these models.

H300 A H300 MA Checking & Adjustments

Technical Specifications & Remarks

Model specs, design notes, and setup procedures for H300A/H300MA.

Supply & Channel Testing

Verifying power supply and testing low/high frequency channels for H300A/H300MA.

Performance & Bias Adjustments

Tests for limiter, bandwidth, offset, S/N, and bias adjustment for H300A/H300MA.

H350 A Checking & Adjustments

Technical Specifications & Remarks

Model specs, design notes, and setup procedures for H350A.

Supply & Channel Testing

Verifying power supply and testing low/high frequency channels for H350A.

Performance & Bias Adjustments

Tests for limiter, bandwidth, offset, S/N, and bias adjustment for H350A.

Figures

Spare Part List

Spare Part List Notes

LEM Hurricane H150 Specifications

General

Configuration	2-Way
Impedance	8 Ohms
LF Driver Size	15"
Woofer	15"
Inputs	1/4"