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LEM Hurricane H200 Service Manual

Powered & passive loudspeaker systems
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Powered & passive loudspeaker systems
service manual
schematic diagrams
CODE: 270306 version 1.02
hurricane
Index
2
Technical data
3
Passive versions
4
Checking & adjustement
8
H100MA, H150A, H200A, H200MA schematics
9
H300A, H300MA schematics
10
H350A schematics
11
H350SA, H400SA schematics
12
Spare part list
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 (
) omega symbol of resistance value is substituted by E.
Ω
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.
Soldering point.
Supply voltage.
Male connector.
Test point.
Female connector.
Flag joined with one or more flags
M/F faston connector.
with the same signal name inscribed.
ATTENTION
Observe precautions when handling electrostatic sensitive devices.
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
Logic supply ground.
Analog supply ground.
Chassis ground.
Earth ground.
1

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Summary of Contents for LEM Hurricane H200

  • Page 1 Index Technical data Passive versions Checking & adjustement H100MA, H150A, H200A, H200MA schematics H300A, H300MA schematics H350A schematics H350SA, H400SA schematics Spare part list hurricane Powered & passive loudspeaker systems 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.
  • Page 2: Technical Data

    Technical Data loudspeaker models H150 / H150A H200 / H200A H300 / H300A H350 / H350A H500 H350S / H350SA H400S / H400SA H100MA H200MA H300MA high 1" driver on EWT horn 1,5" supertweeter 1" driver on EWT horn 1" driver on EWT horn components 8"...
  • Page 4 General Precaution Technical Specifications THD: .......(THD+N) ..........<0.1% S/N Ratio: ......(unweighted) ........>100dB • To prevent short circuit during any test, the oscilloscope must be EARTH insulated, Dimensions: .....H150A (WxHxD) ........340x460x285mm *Note: measured with the limiter enabled. this occurs because some test require to connect its probe to the amplifi er output, non-com- ........H200A (WxHxD) ........
  • Page 5 SIGNAL TO NOISE RATIO CHECK: • Set the generator level at zero, connect the Multimeter across the R50 and R53 resistors, F1-F2=86±2Vac then adjust VR1 trimmer to read 5±0.1mVdc. F4-F5=62±1.5Vac. • Disconnect the audio generator and short the input (pin 1,2,3 of XLR socket shorted) the •...
  • Page 6 LOAD CURRENT TEST: Low Frequency Channel Check ........H400SA (4Ω) ........350W Max.Undistorted Out*: ..H350SA (6Ω) ........105Vpp • Connect the 4Ω 500W load on the output and repeat the INITIAL and HIGH RAIL che- • Set the audio generator to 300Hz 775mVRMS (0dB) sinusoidal signal........H400SA (4Ω) ........
  • Page 7 Figures Figure 6 & 7 show the H350SA & H400SA amplifi er response and sat out response, the crossover frequency is sweepable into 80-300Hz range. Figure 1 and 2 show the right shape of the traces but not their real levels, refer to the levels mentioned in the chapter of appropriate amplifi...
  • Page 12 “H150A” Adhesive Label 120336 WL4x25tt Black Screw 120661 M4 4-tips Lock Nut 229054 1.8” 8ohm Tweeter Speaker 180822 “LEM” Logo Adhesive Plate 120111 M6x25tsp Black Screw 120411 WL3.5x20tt Black Screw 229055 1.8” 8ohm Diaphgram for 229054 Tweeter Speaker 150298 100x2.5mm Nylon Cable Tie...
  • Page 13 120662 M5 4-tips Lock Nut 180870 H350SA Adhesive Label 120662 M5 4-tips Lock Nut 120661 M4 4-tips Lock Nut 180822 “LEM” Logo Adhesive Plate H100MA 120661 M4 4-tips Lock Nut 120341 WL4x20tt Black Screw 120483 5mm Black Shakeproof Washer 120341...
  • Page 14 180873 “H200” Adhesive Label 210217 Black Sealer (specify mt) 667746 Speaker Grill 110018 T6.3A Fuse 5x20mm (EU) 180822 “LEM” Logo Adhesive Plate 180874 “H300” Adhesive Label 227108 18” 4ohm Woofer Speaker 129962 WL3.5X25ts Black Screw 180822 “LEM” Logo Adhesive Plate...
  • Page 15 120482 4mm Black Shakeproof Washer 180876 “H500” Adhesive Label 120461 5.3x10x1 Black Washer 180822 “LEM” Logo Adhesive Plate 120414 WL3.5x35tt Black Screw 129962 WL3.5X25ts Black Screw 120411 WL3.5x20tt Black Screw 120483 5mm Black Shakeproof Washer 120124 M5x30tc Black Screw 120461 5.3x10x1 Black Washer...