elem TM 12.2 active User manual
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CODE : 277322
Index & Warnings
Soldering point.
Male connector.
Female connector.
M/F faston connector.
Test point.
Supply voltage.
Logic supply ground.
Analog supply ground.
Signal ground.
Chassis ground.
Flag joined with one or more flags with the same signal name inscribed.
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.
Schematic Notes
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 1/4W unless otherwise specified.
All switches shown in the "OFF" position. All DC voltages measured to ground with a voltmeter 20KOhm/V.
ATTENTION
Observe precautions when handling
electrostatic sensitive devices
SERVICE MANUAL
Schematic Diagrams
GENERALMUSIC S.p.a. Sales Division:47842 S.Giovanni in Marignano (RN) ITALY - Via delle Rose, 12 - tel. 0541/957404 - fax0541/957404 - http://www.generalmusic.com
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Spare Parts
1 887074 XLR MALE-FEMALE SIGNAL CABLE (mt. 1.5)
2 768030 DISPLAY & SETTING BOARD
3 768126 SIGNAL INPUTS CONTROLS & MIDI INTERFACE BOARD
4 768043 POWER AMPLIFIER BOARD
5 768042 POWER SUPPLY BOARD
6 768128 CONVY PROCESSOR BOARD
7 767987 MAINS FILTER BOARD (EU)
7 768002 MAINS FILTER BOARD (US)
8 667613 CONTROLS PANEL
9 667610 METAL GRID
10 659027 CYL. KNOB WHITE CAP
11 717054 WOODEN CABINET
12 347287 PLASTIC HANDLE
13 347286 HANDLE SET
14 347187 RUBBER HANDLE
15 237064 TRANSFORMER (EU)
15 237065 TRANSFORMER (US)
16 229030 2" COMPRESSION DRIVER TWEETER
17 347283 COMPRESSION DRIVER HORN
18 227038 15" SPEAKER
19 177476 AMPLIFIER HEAT SINK
20 177325 STAND ADAPTOR
21 150591 DISPLAY RED GLASS
22 141202 XLR MALE SOCKET
23 141184 XLR FEMALE SOCKET
24 140526 GRAY BUTTON
25 140212 DIN SOCKET
26 130297 MAINS CORD (EU)
26 130283 MAINS CORD (US)
27 120319 WL 4x15 MAINS CORD SCREW
28 120125 M5x35 MAINS CORD SCREW
29 120111 M6x25 MAINS CORD SCREW
30 120108 M5x30 MAINS CORD SCREW
31 120099 M4x25 MAINS CORD SCREW
32 120098 M4x20 MAINS CORD SCREW
33 110614 MAINS INLET (EU)(US)
34 110297 2 POLES 2 POS. SLIDE SWITCH
35 110291 MAIN SWITCH (EU)(US)
36 180637 ADHESIVE "GENERALMUSIC-LEM" BRAND
37 177474 DRIVER HOLDER
Inputs Controls Panel
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BIAS ADJUSTMENT
Instruments, materials and tools:
- Audio Generator
- Dual Trace Oscilloscope
- Digital Voltmeter (or Multimeter)
- 4Ω500W and 8Ω100W Resistors
- Temperature Meter
Setup:
- Connect the Audio Generator to the input and set its output at 2KHz sinusoidal signal.
- Insert the temperature sensor through the interstize between the heatsink and R93 (PTC).
- Connect the 4Ω500W resistor to the amplifier output instead of the woofer speaker and 8Ω100W instead of tweeter speaker.
- Connect the oscilloscope probes (setting 20V/div.,1ms/div.) on the loads.
- Insert the voltmeter terminals on R107.
ADJUSTMENT PROCEDURE
1) Turn on the amplifier, pressing "UP" "DOWN" and "MIDI" simultaneously, check that the display shows "C".
2) Set the input signal to 0dB (0.775Vrms).
3) When the temperature has reaches about 45°C (109°F) set the signal input to minimum (0 or - ).
4) Adjust the trimmer R111 to read a voltage of 6mV ±0.1 on the multimeter.
5) Check that the voltage across the R108 resistor has the same value.
6) At the same temperature condition, adjust the VR1 trimmer to read 2.2mV ±0.1 at R24 resistor.
7) Check that the voltage on the R25 resitor has the same value.
Veryfing:
1) Increase the input level to obtain an output voltage about of 0.5Vpp.
2) Check with the oscilloscope that the output signal is without a cross-talk distortion and eventually slightly
adjust the R111 or VR1 position until distortion disappears.
(Note: the voltage value across the R107 or R108 resistor must not exceed 10mV and the R24 or R25 resistor must
not exceed 4mV).
LIMITER ADJUSTEMENT
1) Increase the input level to 10dB, adjust the trimmer VR1 until clipping distortion disappears.
2) Verify tha the led change colour from green to red.
3) Re-connect the speakers instead of the 4Ωand 8Ωresistors.
TOUR MASTER 15,2 ACTIVE - Technical Specification
SPEAKER SPECIFICATIONS
COMPONENTS High 2" driver with controlled directivity horn
Low 15" low frequency speaker
HIGH section POWER HANDLING W continuous 75
(EIARS-426A) W peak 240
LOW section POWER HANDLING W continuous 800
(EIARS-426A) W peak 2400
IMPEDANCE (nominal) High ohm 8
Low 4
CONSTRUCTION Cabinet: birch playwood
Finish: Black scratch-resistant paint
Protection grille: metal grille
WEIGHT kg - lbs. 48,5 - 106,8
DIMENSIONS mm - in. 470x790x465(LxAxP) - 185x311x183(WxHxD)
PROCESSOR SPECIFICATIONS
INPUT Sensitivity dB 0 (0.775Vrms)
Impedance Kohm 30 (balanced) - 15 (unbalanced)
A/D converter bit 18
D/A converter bit 18
Dynamic range dB 105
Sampling rate KHz 48
CROSSOVER Frequency Hz 1350
Slope dB/oct. 24
HIGHsectionPOWERAMPLIFIER W continuous 150
LOW section POWER AMPLIFIER W continuous 650
AMPLIFIERS DISTORTION THD+Noise <0,02%
CONTROLS VOLUME control
UP & DOWN selector buttons
MIDI button
Earth Lift
DISPLAY 2-digit display
SIGN/COMP LED
CONNECTORS 1 XLR-F +1 XLR-M (input + link)
MIDI in & MIDI THRU
POWER SUPPLY 230V ±15% 50/60Hz - 115V ±15% 50/60Hz
SYSTEM SPECIFICATIONS
FREQUENCYRESPONSE Hz 50 ÷ 20000 (-10dB)
SENSITIVITY SPL 1W/1m dB 98
MAXSPL continuous 127
DISPERSION ANGLE horizontal ° 60 (±10)
vertical 40 (±7)
DIRECTIVITYFactor (Q) 12
DIRECTIVITY Index Di dB 11 (+2.8 , -4)
Note:the system specifications have been calculated using PRESET n.1 FLAT
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Notes:
Each spare part is single quantity unless otherwise specified
Asterisk prefix explanation:
Omitted = First level spare part.
One asterisk = Second level, part of previous listed first level part.
Two asterisks = Third level, part of previous listed second level part.
Three asterisk =.......................
Any request for not above mentioned part must encompass specific description including:
1) Model name,
2) Section,
3) Module code,
4) Reference name,
5) Quantity number.
SPARE PARTS LIST
ACCESSORIES
887074 XLR Female-Male Signal Cable (1.5mt)
277310 Owner’s Manual
ASSEMBLY
667613 Controls Panel
659027 Cyl. Knob White Cap
237064 Transformer (230V)
237065 Transformer (115V)
150591 Display Red Glass
110614 Mains Socket
110291 Power Switch
110037 T6.3A Fuse 6.3x32mm (US)
110035 T2.5A Fuse 6.3x32mm (US)
110034 T800mA Fuse 6.3x32mm (US)
110022 T8A Fuse 6.3x32mm (US)
110029 T4A Fuse 5x20mm (EU)
110023 T8A Fuse 5x20mm (EU)
110018 T6.3A Fuse 5x20mm (EU)
110015 T800mA Fuse 5x20mm (EU)
110014 T2.5A Fuse 5x20mm (EU)
667506 Left Side Bar
717054 Wooden Cabinet
667610 Metal Grid
347287 Plastic Handle
347286 Plastic Set
347283 2" Comprission Driver Horn
347187 Plastic Grip
229030 2" Compression Driver Tweeter
227038 15" Speaker
177474 Driver Holder
177325 Stand Adapter
130297 Mains Cord (EU Version)
130283 Mains Cord (US Version)
CONVY Processor Board
758128 CONVY Processor Board (PCB#313020)
230569 * FL5R200PNT EMI Coil For Signal
141059 * Con V M 9 C Mini Mate Burndy
141015 * Con V F 14c P=1.27 Mmatch Amp
141013 * Con V F 10c P=1.27 Mmatch Amp
141010 * 4 Contacts Vert Female Connector
100943 * MC33079 Quad Ln Op Amp
100919 * MC33078 Dual LN J-Fet Operational Amplifier
100737 * ADMOD79 2ch Ad Delta Modulator
100643 * AD1865N Dual 18bit Dac
100642 * TS93C46 1Kbit Eeprom Memory
100612 * 74HC374 Octal D-Type Flip-Flop
100061 * TL072 Dual J-Fet Operational Amplifier
100059 * 7805 +5V 1A Voltage Regulator
100058 * 7905 -5V 1A Voltage Regulator
080103 * 1N4148 100mA 75V Signal Diode
050494 * Resistor Array 10K X5 1/8w 5%
050492 * 10Kx8 1/8w 5% Resistor Array
010722 * 24.576MHz Quartz Resonator
010720 * 12MHz Ceramic Resonator With Capacitors
557026 * AT89C55-12JC Programmed CPU
105001 * CONVY Dsp Convolver
Power Supply Board
768042 * Power Supply Board (PCB#317191)
141060 ** Con V M 12c Mini Mate Burndy
141013 ** Con V F 10c P=1.27 Mmatch Amp
140081 ** H 2c P=10 Terminal Block
140069 ** H 3c P=10mm Terminal Block
100060 ** 7815 +15V 1A Voltage Regulator
100059 ** 7805 +5V 1A Voltage Regulator
100049 ** 7915 -15v 1a Voltage Regulator
080606 ** GBU8D 8A Rectifier Diodes Bridge
080168 ** W02M 1.5A Rectifier Diodes Bridge
030882 ** 10000uF 50V Snap-In Electrolytic Capacitor
030881 ** 10000uF 50V Snap-In Electrolytic Capacitor
030866 ** 4700uF 100V Snap-In Electrolytic Capacitor
030858 ** 4700uF 25V 20% Vert Electrolytic Capacitor
030560 ** 4700uF 80V 20% Snap-In Electrolytic Capacitor
Signal Input Controls & MIDI Interface Board
768126 Signal Input, Controls & MIDI Interface Board (PCB#313019)
757942 * Photores Coupler
141202 * Hor. Male XLR Socket (M21bc Nuova Asme)
141184 * Hor. Male XLR Socket (NC3FPRH Neutrik)
141064 * 9 Contacts Hor. Male Connector
141010 * 4 Contacts Vert Female Connector
140212 * Horizontal Female 5 Poles Din Socket
100602 * 74HC04 Hex Inverter
100061 * TL072 Dual J-Fet Operational Amplifier
100035 * 6N138 Optocoupler
090194 * BC560 TO92 LN Pnp Transistor
090183 * BC550 To92 Ln Npn Transistor
080734 * Led 2.5x5mm Rect Diff Red-Grn LED
080245 * 7V5 1W 5% Zener Diode
080103 * 1N4148 100mA 75V Signal Diode
074570 * 5K lin. 31 clicks Potentiometer
070125 * 1K 20% Vertical Linear Trimmer
140526 * Gray Button
Display & Setting Board
768030 * Display & Setting Board (PCB#319046)
141015 ** Con V F 14c P=1.27 Mmatch Amp
140526 ** Microswitch 100V 100ma 0.8mm
080717 ** HDN1105 7 Segments Display
Mains Filter Board
767987 * Mains Filter Board (Pcb#315016) (EU)
768002 * Mains Filter Board (Pcb#315016) (US)
230565 ** 2.5mH 250V 3A AC Line Filter
140010 ** 3 Contacts P=10 Vert Terminal Block
110113 ** Fuse Clip 5x20mm 6A max (EU)
110114 ** Fuse Clip 6.3x32mm 10A Max (US)
020493 ** 100n 250Vac MKP EMI Capacitor “Siemens”
010719 ** 2n2 250Vac 7A 20% AC Line “Y” Filter “Murata”
Power Amplifier Assembly
727524 Power Amplifier Assenbly
768043 * Power Amplifier Board (PCB#319044)
141059 ** 9 Contacts Vert. Male Connector
141058 ** 6 Contacts Vert. Male Connector
110316 ** Relay 24V / 1 Switch no 16A 250V
110307 ** Relay 24V / 2 Switch 5A 250V
100084 ** TL074 Quad J-Fet Operational Amplifier
100061 ** TL072 Dual J-Fet Operational Amplifier
090920 ** Mje803 TO126 Npn Darl Transistor
090917 ** MJE350 TO126 Pnp Transistor
090916 ** MJE340 TO126 Npn Transistor
090201 ** 2N5401 TO92 Pnp Transistor
090200 ** 2N5550 TO92 Npn Transistor
090924 ** MJL21194 NPN Transistor
090923 ** MJL21193 PNP Transistor
090920 ** MJE802P PNP Transistor
090919 ** MJE15031 PNP Transistor
090918 ** MJE15030 NPN Transistor
090917 ** MJE350 PNP Transistor
090916 ** MJE340 NPN Transistor
090863 ** TIP36C PNP Transistor
090862 ** TIP35C NPN Transistor
080282 ** 13V 1W 5% Zener Diode
080261 ** 10V1W 5% Zener Diode
080245 ** 7V5 1W 5% Zener Diode
080241 ** 5V6 1W 5% Zener Diode
080171 ** FE6B 6A 100V Fast Recovery Diode
080156 ** 1N4002 1A 100V Rectifier Diode
080103 ** 1N4148 100mA 75V Signal Diode
070106 ** 470E 20% Horizontal Linear Trimmer
070082 ** 220E 20% Horizontal Linear Trimmer
080819 * PTC 70 Pth59f04bg222ts
080607 * KBPC25 25A 200V Bridge Rectifier Diode
080606 * GBU8D 8A Rectifier Diodes Bridge
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