LEM Hurricane H350 - 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.
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✒
☎
service manual
schematic diagrams
CODE: 270306 version 1.02
Powered & passive loudspeaker systems
hurricane

Summary

General Precautions and Notices

General Notice and Symbol Explanation

General warnings and explanation of symbols used in the manual.

Handling Electrostatic Sensitive Devices

Specific advice for safely handling ESD-sensitive components.

Technical Data

Model Checking and Adjustment Procedures

H100 MA Checking and Adjustments

Detailed procedures for checking and adjusting the H100MA amplifier.

H150 A, H200 A, H200 MA Checking and Adjustments

Procedures for checking and adjusting H150A, H200A, H200MA amplifiers.

H350 A Checking and Adjustments

Procedures for checking and adjusting the H350A amplifier.

H350 SA, H400 SA Checking and Adjustments

Procedures for checking and adjusting H350SA, H400SA amplifiers.

General Operational Checks and Advice

General Advice for Troubleshooting

Guidance on diagnosing and resolving common amplifier issues.

Reliability Check Procedures

Steps to ensure amplifier reliability before delivery.

Burn-in Test Procedure

Performing a burn-in test on the amplifier for functionality.

Spare Part List

LEM Hurricane H350 Specifications

General

Configuration	2-Way
Power Capacity (RMS)	350 W
Impedance	8 Ohms
LF Driver Size	15 inches
Woofer	15 inches
Power Handling	350W RMS
Sensitivity	98dB