LEM P1000 User manual

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CODE:277320
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.
GENERALMUSICS.p.A.SalesDivision:47048S.GiovanniinMarignano(RN)ITALY-ViadelleRose,12-tel.[phone]-tlx550555GMUSICI-fax[phone]
Technical Specifications, Test Procedures & Adjustments
2
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.
SchematicNotes
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.
ATTENTION
Observe precautions when handling
electrostatic sensitive devices
SERVICE MANUAL
Schematic Diagrams
Block Diagram
5
Protections, Fuse, Supply, Display, Sockets, Inputs Boards
7
8
Part List, Layout
Driver & Power Boards
6

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TECHNICAL SPECIFICATIONSTECHNICAL SPECIFICATIONS
TECHNICAL SPECIFICATIONSTECHNICAL SPECIFICATIONS
TECHNICAL SPECIFICATIONS
Dimensions: (WxHxD) 483x88x445mm (2U)
Weight: 16Kg
Power Requirements: (230Vac±15% 50/60Hz) 1000VA
(115Vac±15% 50/60Hz) 1000VA
Output Power: (4Ωstereo/parallel) 2x 500Watts
(8Ωstereo/parallel) 2x 350Watts
(8Ωbridge) 1000Watts
(16Ωbridge) 700Watts
Max. Undistorted Out: (4Ωstereo/parallel) 126Vpp
(8Ωstereo/parallel) 149Vpp
(8Ωbridge) 250Vpp
Input Sensitivity: (constant sensitivity) 0.775Vrms (0dB)
(constant gain) 2.25Vrms (+9.2dB)
Input Impedance: (balanced) 30KΩ
(unbalanced) 15KΩ
Voltage Gain: (constant sensitivity) 35±0.5dB
(constant gain) 26±0.5dB
Slew Rate: 25V/µS
Damping Factor: (4Ωstereo/parallel) >400
(8Ωstereo/parallel) >800
Frequency Response (-0.2dB) 20Hz÷20KHz
at Full Power: (-3dB) 10Hz÷60KHz
IMD: (SMPTE 60Hz/7KHz 4:1) <0.1%
THD: (THD+N) <0.1%
S/N Ratio: (unweighted) >95dB
Crosstalk: (1KHz) >70dB
TEST PROCEDURES & ADJUSTMENTSTEST PROCEDURES & ADJUSTMENTS
TEST PROCEDURES & ADJUSTMENTSTEST PROCEDURES & ADJUSTMENTS
TEST PROCEDURES & ADJUSTMENTS
PrecautionPrecaution
PrecautionPrecaution
Precaution
➭To prevent short circuit during any test, the oscilloscope must bethe oscilloscope must be
the oscilloscope must bethe oscilloscope must be
the oscilloscope must be
EARTH insulatedEARTH insulated
EARTH insulatedEARTH insulated
EARTH insulated, this occurs because some test require to connect its
probe to the amplifier output, non-compliance may cause damages to
oscilloscope inputs circuitry.
➭Before removing or installing any modules and connectors, disconnectdisconnect
disconnectdisconnect
disconnect
the amplifier from AC MAINSthe amplifier from AC MAINS
the amplifier from AC MAINSthe amplifier from AC MAINS
the amplifier from AC MAINS and measure the DC supply voltages
across each of the power suppliy capacitors. If your measurement on any
of the caps is greater than 10Vdc, connect a 100Ω100W resistor across
the applicable caps to discharge them for your safety. Remember to
remove the discharge resistor immediately after discharging caps. Do notDo not
Do notDo not
Do not
power up the amplifier with the discharge resistor connectedpower up the amplifier with the discharge resistor connected
power up the amplifier with the discharge resistor connectedpower up the amplifier with the discharge resistor connected
power up the amplifier with the discharge resistor connected.
➭Read these notes entirely before proceeding to any operation. These
notes are not comprehensive of all damages that possibly occur, but
includes some specifically advices, checks and adjustments relative to
this amplifier.
RemarksRemarks
RemarksRemarks
Remarks
➭The output coupled transistors TR6-TR11 (MJ15022/B) and TR16-TR22
(MJ15023/B) are factory selected on VBE and VBREAKDOWN (IEC0<-6.6mA at
V(BR)CE0=11V for NPN and IEC0<6.6mA at V(BR)CE0=-11V for PNP)
The selection is marked by a red digit (from 0 to B) representative of VBE
forward voltage categories, these are subdivided in 12 steps of 30mV
each.
Only selected transistors must be used when replacing TR6-TR11 orOnly selected transistors must be used when replacing TR6-TR11 or
Only selected transistors must be used when replacing TR6-TR11 orOnly selected transistors must be used when replacing TR6-TR11 or
Only selected transistors must be used when replacing TR6-TR11 or
TR16-TR22 and every coupled transistors must have the same digit.TR16-TR22 and every coupled transistors must have the same digit.
TR16-TR22 and every coupled transistors must have the same digit.TR16-TR22 and every coupled transistors must have the same digit.
TR16-TR22 and every coupled transistors must have the same digit.
➭The power supply utilizes a dual bipolar DC rail configuration with low and
high voltages; one positive and one negative low rail (+/-Vcc1) and one
positive and one negative high rail (+/-Vcc2).
Visual CheckVisual Check
Visual CheckVisual Check
Visual Check
➭Use compressed air to clear dust in the amplifier chassis.
➭Before proceed to supply the amplifier check visually the internal assem-
bly, if appears an evident damage find the most possible reasons that
cause it.
➭Check the wiring cables for possible interruptions or shorts.
➭If the damage has burnt a printed circuit board don’t try to repair it, re-
place with a new one.
Test InstrumentTest Instrument
Test InstrumentTest Instrument
Test Instrument
➭Audio Generator
➭Dual Trace Oscilloscope
➭Digital Multimeter
➭2Ω2000W, 4Ω1000W, 8Ω1000W, 100Ω100W resistors
➭Variac
➭Temperature Meter
SetupSetup
SetupSetup
Setup
➭Connect the Variac between the PROTECTION board and the TF1 and
TF2 transformers and set it at zero voltage.
➭Set the amplifier in STEREO MODE and turn full clockwise the LEVEL
potentiometers.
➭Connect the audio generator to the channel inputs and set it to 1KHz
775mVRMS (0dB) sinusoidal signal.
➭Insert the temperature meter through the IC1 interstice located at centre
of heatsink.
➭The procedures that follow must be executed subsequently in the order
specified.
Supply CheckSupply Check
Supply CheckSupply Check
Supply Check
➭Remove the transformer secondary fuses (located on FUSE board), set
the Variac to the nominal mains voltage, check with the Multimeter the
phase opposition between the secondaries of the two transformers (F1-
F2,F3-F4), if not, verify the primary connections (T1÷T4 on Protections
Board).
➭Verify the AC supply voltages: F1-F2=72±2Vac F3-F4=128±3Vac.
➭Re-set the Variac at zero voltage, turn off the amplifier and put the fuses
back on its holders.
➭Connect the oscilloscope probes CH1/2 to the channel outputs, set both
to 20V/div. 200µS/div.
➭Set up the Variac slowly monitoring the Outputs with the oscilloscope
CH1/2 connected, it should display the sinusoidal input signal amplified
with no distortions, if a distortion occur check the Driver and the Power
Boards as suggested in the ADVICES section.
➭If the protection trips, turn off the amplifier, wait some minutes and dis-
connect the supplies from the outputs modules (CN1 - CN2 - CN7 - CN8
on POWER boards), continue to check the supplies.
➭CAUTION: Before re-connecting the output modules to the supplies,CAUTION: Before re-connecting the output modules to the supplies,
CAUTION: Before re-connecting the output modules to the supplies,CAUTION: Before re-connecting the output modules to the supplies,
CAUTION: Before re-connecting the output modules to the supplies,
you must have the capacitors discharged for your safety: connect ayou must have the capacitors discharged for your safety: connect a
you must have the capacitors discharged for your safety: connect ayou must have the capacitors discharged for your safety: connect a
you must have the capacitors discharged for your safety: connect a
100100
100100
100ΩΩ
ΩΩ
Ω100W resistor across the caps and remove the resistor just100W resistor across the caps and remove the resistor just
100W resistor across the caps and remove the resistor just100W resistor across the caps and remove the resistor just
100W resistor across the caps and remove the resistor just
after they are discharged.after they are discharged.
after they are discharged.after they are discharged.
after they are discharged.
➭Finally verify the DC supplies on Supply Board:
CN6 (+Vcc2) =+89.5±2Vdc
CN8 (+Vcc1) =+50±1.5Vdc
CN7 (-Vcc1) =-50±1.5Vdc
CN2 (-Vcc2) =-89.5±2Vdc
on Protections Board:
CN2 pin3 =+27±1Vdc
CN3 pin3 =-27±1Vdc
CN1 pin4-5-6 =+13.8±1Vdc
CN1 pin1-2-3 =-13.8±1Vdc
➭If one or more voltages don’t correspond, check the rectifiers, capacitors
and transformers disconnecting them from circuitry, refer to schematics.
Channels CheckChannels Check
Channels CheckChannels Check
Channels Check
➭The channel A is facing the front and channel B the rear of the chassis.
➭These procedures are intended for one channel at a time, repeat these
operation for the other channel.
➭Verify, with the Multimeter, the insulation between the heatsink and the
transistors collectors.
➭SETUP:SETUP:
SETUP:SETUP:
SETUP:
Connect the CH1 scope GND clip to CN5 (GND terminal).
Connect the CH1 probe tip to CN6 (AMP output).
Connect the CH2 probe tip to D2 cathode on POWER board.
Set the LEVEL potentiometers full clockwise.
The load resistor is disconnected.
➭INITIAL TEST:INITIAL TEST:
INITIAL TEST:INITIAL TEST:
INITIAL TEST:
Increase slowly the Variac. The channel output signals must be symmetri-
cal respect the GND without visible distortion and oscillation as shown in
Fig.1 Trace A . If there is a distortion read the section ADVICES and
proceed to check the other channel.
Verify that, when the heatsink temperature is less 50°c, the cooling fan
Fig. 1Fig. 1
Fig. 1Fig. 1
Fig. 1
Trace B (20V/div.)
Trace A (20V/div.)
Trace C (20V/div.)

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voltage must be between 12 and 16V.
➭HIGH RAIL CHECK:HIGH RAIL CHECK:
HIGH RAIL CHECK:HIGH RAIL CHECK:
HIGH RAIL CHECK:
When the output signal (Positive half-wave) is less than 44Vp the voltage
on D2 cathode must remain constant at 50V, when the output signal
exceeds 44Vp the voltage must follow the output signal with 6V offset
(see
Fig.1 Trace B ), to check the negative high rail connect the probe to
D18 anode (see
Fig.1 Trace C ).
Connect the 4Ω1000W load on the output and repeat the INITIAL and
HIGH RAIL checks.
Check the signal clipping, it must occur at 130±5Vpp (see
Fig.2 Trace
ABC
).
➭SIGNAL/CLIP SENSOR CHECK:SIGNAL/CLIP SENSOR CHECK:
SIGNAL/CLIP SENSOR CHECK:SIGNAL/CLIP SENSOR CHECK:
SIGNAL/CLIP SENSOR CHECK:
Set the LEVEL pot to minimum, set the scope timebase at 1V/div. 200µS/
div., then increase the level and check the SIGNAL/CLIP led activity: it
must turn on (green light) when the amplifier output is higher than 5Vpp.
Set the scope at 50V/div. and increase the level, check the led: it must
change from green to red colour when the amplifier output signal clip.
➭CURRENT AND SHORT CIRCUIT SENSOR CHECK:CURRENT AND SHORT CIRCUIT SENSOR CHECK:
CURRENT AND SHORT CIRCUIT SENSOR CHECK:CURRENT AND SHORT CIRCUIT SENSOR CHECK:
CURRENT AND SHORT CIRCUIT SENSOR CHECK:
Set the CH2 sensitivity to 0.5V/div., connect the scope CH1, GND clip at
CN6 (AMP output) and the probe tip at CN5 (GND terminal), CH2 probe
tip alternatively on TR6, TR11 (NPN) and TR16, TR22 (PNP) emitters.
Set the generator to have approx. 1Vp on the emitters: their difference
must be less than 10% one each other (see
Fig.3 Trace A ). The NPN or
PNP transistors out of tolerance must be replaced with a new selected
pair.
Connect a 2Ω2000W load. Connect the CH1 probe tip on TR16 emitter
and the CH2 probe tip on TR11 emitter. Increase the input signal, the
output current limiter must keep the emitter voltages (both half channel) at
1.2Vp approx. (see
Fig.3 Trace B ).
Temporarily short the amplifier output: the current limiter must keep the
emitter voltages (both half channel) at 0.7Vp (see
Fig.3 Trace C ).
➭COOLING FAN & PROTECTION CHECK:COOLING FAN & PROTECTION CHECK:
COOLING FAN & PROTECTION CHECK:COOLING FAN & PROTECTION CHECK:
COOLING FAN & PROTECTION CHECK:
Short circuit pins 11 and 12 of OC1 on Driver board, the fan must run at
max. speed (20÷23Vdc on its tips).
Short circuit pins 9 and 10 of OC1 on the same board, the PROTECT led
must turn on immediately, the fan must run at max. speed. The PROTECT
led of the other channel must also turn on after 2 Sec. and the relay must
disconnect the transformers from the mains.
Remove the short circuit, after 3 Sec. both PROTECT leds must turn off
and the relay must re-connect the transformers to the mains.
Temporarily short the emitter and the collector of TR7 (Driver board) the
PROTECT led must turn on and the relay must disconnect the transform-
ers from the mains.
Turn off the amplifier to reset it, wait a minute to let the supply caps
discharged.
➭OFFSET SENSOR CHECK:OFFSET SENSOR CHECK:
OFFSET SENSOR CHECK:OFFSET SENSOR CHECK:
OFFSET SENSOR CHECK:
Set the Variac to zero voltage output, disconnect the amplifier load and
the supply connection to the Power board (CN1,2,7,8), turn on the ampli-
fier, connect temporarily (by means of a suitable conductor wire) CN6 to
+15Vdc, the PROTECT led must turn on immediately; the fan must run at
maximum speed).
Reset the protection turning off the amplifier, turn it on again, connect
temporarily (by means of a suitable conductor wire) CN6 to -15Vdc, the
led PROTECT must turn on again.
➭SOA ADJUSTMENT:SOA ADJUSTMENT:
SOA ADJUSTMENT:SOA ADJUSTMENT:
SOA ADJUSTMENT:
Set the scope sensitivity at 5V/div. (both channels) and connect the CH1
probe on D12 cathode and the CH2 probe on D11 anode on Driver board,
check the voltage across D12 and D11 zener diodes: it must be
14.8±0.1V; increasing 10dB the generator level this voltage does not
decrease more than 0.5V.
Connect the 4Ω1000W load, set the scope sensitivity at 2V/div. and
connect the CH1 probe tip at R43 side CN3 and the CH2 probe tip at R36
side CN2. Decrease the signal level until two sinusoid appear on the
scope as shown in
Fig 4 Trace AB .
Their max. amplitude must be 5.5Vp (the outer) and 1.5Vp (the inner) as
shown in
Fig 5 Trace A,B ; increasing a bit the generator signal, the inner
sinusoid must produce spikes on its peaks as shown in
Fig 5 Trace A,B .
Connect the 2Ω1000W load, set the scope sensitivity at 1V/div. (both
channels) and connect its probes to the collectors of TR8 (CH1) and
TR11 (CH2) on Driver Board.
Disconnect the fan; wait until the temperature is 90°C (require some
minutes) then decrease the input to zero.
Adjust the trimmers R20 and R40, until the scope traces go respectively
at -2.2Vdc and +2.3Vdc; turn on the cooling fan and wait until the tem-
perature goes down to 80°C; then turn it off.
Fig. 2Fig. 2
Fig. 2Fig. 2
Fig. 2
Fig. 3Fig. 3
Fig. 3Fig. 3
Fig. 3 Trace A (0.5V/div.)
Trace B (0.5V/div.)
Trace C (0.5V/div.)
Fig. 5Fig. 5
Fig. 5Fig. 5
Fig. 5 Trace A (2V/div.)
Trace C (20V/div.)
(Amplifier Output)
Trace B (2V/div.)
Fig. 4Fig. 4
Fig. 4Fig. 4
Fig. 4 Trace A (2V/div.)
Trace C (20V/div.)
(Amplifier Output)
Trace B (2V/div.)
Reconnect the 4Ω1000W load, adjust the level for the maximum dis-
placement of the scope tracks toward the centre of the scope screen (-
3dB approx.); the SOA control circuit (Protect led light on) will start at
90±2°C.
Reconnect the cooling fan and check with the Multimeter its supply volt-
age: it must be 20V or more (max speed).
At 70°C heatsink temperature, short circuit the amplifier output and check
the scope traces: they must displace 1V toward the centre of the screen,
respect to the previous position with 4Ωload.
Remove the short and decrease the input level to zero. The temperature
will decrease: at 65..75°C the speed of the cooling fan must change from
max to min speed. In case of a fan misbehaviour try to replace the D10
zener diode: if speed change at 75°C or more replace with a lower volt-
age zener diode, if speed change at 60°C or less replace with a higher
voltage zener diode.
➭BIAS ADJUSTMENT:BIAS ADJUSTMENT:
BIAS ADJUSTMENT:BIAS ADJUSTMENT:
BIAS ADJUSTMENT:
Connect the Multimeter across R54 of Power board, when the heatsink
temperature rises at 50°C, turn off the cooling fan and adjust R31 to read
2mV.
Set the scope sensitivity at 1V/div.(CH1), and connect the GND clip to the
amplifier GND (CN5) and the probe tip on the output (CN6). Adjust the
generator level until the sinewave appears at full screen amplitude, No
crossover distortion must be detectable: if necessary re-adjust R31. Re-
connect the fan.
➭BANDWIDTH CHECK:BANDWIDTH CHECK:
BANDWIDTH CHECK:BANDWIDTH CHECK:
BANDWIDTH CHECK:
Sweep the generator frequency from 20Hz to 20KHz, the output level
must have not detectable level changes.
➭SLEW RATE CHECK:SLEW RATE CHECK:
SLEW RATE CHECK:SLEW RATE CHECK:
SLEW RATE CHECK:
Set the scope sensitivity to 10V/div. 1mS/div. and set the generator to
1KHz square wave mode. Check the output square wave rising and falling
edge slopes: both must be 12V/µS or more.
➭Disconnect the Variac and re-connect the transformer primaries to the
PROTECTIONS board (be careful to connect the two transformers out of
phase).
Inputs Board CheckInputs Board Check
Inputs Board CheckInputs Board Check
Inputs Board Check
➭These procedures are intended for one channel at a time, repeat these
operations for the other channel.
➭SETUP:SETUP:
SETUP:SETUP:
SETUP:
Connect the CH1 probe to amplifier input of the channel under test and
set both at 500mV/div. 200mS/div.
Connect the CH2 probe to amplifier output of the channel under test and
set it at 10mV/div. 200mS/div.
Set the audio generator at 1KHz sinus. 775mVRMS (0dB).
Set the LEVEL potentiometers full clockwise.
The load resistor is disconnected.
➭CMRR ADJUSTMENTCMRR ADJUSTMENT
CMRR ADJUSTMENTCMRR ADJUSTMENT
CMRR ADJUSTMENT
Temporarily disconnect pin 3 from pin 1and short the pin 2 (positive input)
and pin 3 (negative input) of XLR input socket.
Adjust the trimmer R10 (channel A) or R21 (channel B) to obtain the
minimum output level.
➭GAIN ADJUSTMENTGAIN ADJUSTMENT
GAIN ADJUSTMENTGAIN ADJUSTMENT
GAIN ADJUSTMENT
Re-set the input signal at pin 2 (positive input) and pin 3 (negative input)
short with pin 1 (GND) of XLR input socket
Set CH2 scope at 500mV/div. and connect it to the output of INPUTS
board (CN3 pin9 for channel A or CN3 pin7 for channel B).
Set the input SENSITIVITY (SW1) at 2.25Vrms, adjust the trimmer R5
Trace B (20V/div.)
Trace A (20V/div.)
Trace C (20V/div.)

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(channel. A) or R17 (channel B) to obtain the same amplitude of the
scope signals.
➭AMPLIFIER GAIN CHECKAMPLIFIER GAIN CHECK
AMPLIFIER GAIN CHECKAMPLIFIER GAIN CHECK
AMPLIFIER GAIN CHECK
Set CH2 scope at 50V/div. and connect it to the amplifier output of the
channel under test. By means of the SENSITIVITY switch check the
output levels: at 775mV position the output voltage must be 63±1.5Vp and
at 2.25V position must be 22.5±0.5Vp.
➭AMPLIFIER BRIDGE MODE CHECKAMPLIFIER BRIDGE MODE CHECK
AMPLIFIER BRIDGE MODE CHECKAMPLIFIER BRIDGE MODE CHECK
AMPLIFIER BRIDGE MODE CHECK
Set the amplifier in BRIDGE mode (input signal to channel A), connect the
CH2 probe to the bridge output: the output voltage must be 124±3Vp.
➭SIGNAL TO NOISE RATIO CHECKSIGNAL TO NOISE RATIO CHECK
SIGNAL TO NOISE RATIO CHECKSIGNAL TO NOISE RATIO CHECK
SIGNAL TO NOISE RATIO CHECK
Disconnect the audio generator and short the input (pin 1,2,3 of XLR
socket shorted) the output signal (noise) must be less 1mV.
AdvicesAdvices
AdvicesAdvices
Advices
➭Check the channels one at time to determine which is right (note: if you
have a spare amplifier module that you know as right, use it).
➭If the other channel doesn't work properly, you can replace the DRIVER
and POWER board one a time, using those of the right channel, to isolate
where is the damage.
➭If you have determinate that the problem is a short on a rail, you must
check the output transistors. To do this you must remove before the
DRIVER board to access at the POWER board.
To determine which transistor devices are bad, use a soldering iron to lift
one leg of each emitter pin and measure the emitter-collector resistance
on each device. Unsolder and lift one leg of each base pin and check the
base-collector resistance of each transistor and replace any that measure
as a short.
If all the transistors are OK, unsolder and lift one leg of each diode and
check them.
Check the circuit board for open foil traces.
Use the Multimeter as Ohm-meter to check the resistors, particularly the
base and emitter resistors of damaged transistor.
➭If the input sinewave appears to be distorted during the negative cycle,
you can assume that the problem is located somewhere in the circuitry of
the positive low rail.
If the positive cycle appears distorted, you can assume that the problem
is in the circuitry of the negative low rail.
➭If the high rails appear distorted or are not modulating as shown in figure,
then the problem probably exists somewhere in the circuitry of the respec-
tive (+ or -) defective high rail. Refer to the schematics.
1KHz THD+N vs Input Level
SMPTE (%) vs Input Level
Common Mode Rejection Ratio
Frequency & Phase Response
THD+N (%) vs Freq. (8Ωload 3dB below clip)
Residual Noise vs Freq. (full power)

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APP.
CKD
WRITTEN CONSENT BY GENERALMUSIC.
OR REPRODUCE THIS DOCUMENT WITHOUT
ALL RIGHTS ARE RESERVED, NO COPIES
GENERALMUSIC S.p.A. ITALY
PART:
DWG#
DISK:
REV:
PCB#
Zuccatti
Ricci/Battelli
G. Boccato 550594
04/09/97
56
BLOCK DIAGRAM
P1000 - POWER AMPLIFIER
1/1

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DRW
APP.
CKD
WRITTEN CONSENT BY GENERALMUSIC.
OR REPRODUCE THIS DOCUMENT WITHOUT
ALL RIGHTS ARE RESERVED, NO COPIES
GENERALMUSIC S.p.A. ITALY
PART:
DWG#
DISK:
REV:
PCB#
ZUCCATTI
RICCI/BATTELLI
BOCCATO 550595
02/09/97
56
SOCKETS & INPUTS BOARDS
PROTECTION, FUSE, SUPPLY, DISPLAY,
P1000 POWER AMPLIFIER
1/1
9610038, 9610035, 9610036, 9602004

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APP.
CKD
WRITTEN CONSENT BY GENERALMUSIC.
OR REPRODUCE THIS DOCUMENT WITHOUT
ALL RIGHTS ARE RESERVED, NO COPIES
GENERALMUSIC S.p.A. ITALY
PART:
DWG#
DISK:
REV:
PCB#
ZUCCATTI
RICCI/BATTELLI
BOCCATO 550596
02/09/97
1
DRIVER AND POWER BOARD
CHANNEL A & B
P1000 POWER AMPLIFIER
1/1
9610037 & 9610034

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Spare Part ListSpare Part List
Spare Part ListSpare Part List
Spare Part List
Code Ref. Description
AccessoriesAccessories
AccessoriesAccessories
Accessories
277317 Owner’s Manual P-Series
AssemblyAssembly
AssemblyAssembly
Assembly
667335 MEAYA104 Rear Spacer
667648 MSSDDY02 Cover
667647 MSSDDX01 Chassis
667646 MSSEBA01 Front Panel
657232 HRDKBH51 Level Knob
237076 FIN27242 Transformer 230Vac 8W (EU)
237075 FIN27241 Power Transformer 230Vac 400W (EU)
177542 MEATA102 Handle
141200 CONJK351 Speakon Socket
130285 Mains Cable (EU)
110291 SWTPR141 Power Switch
778125 FIN27261 Cables Assembly
Inputs AssemblyInputs Assembly
Inputs AssemblyInputs Assembly
Inputs Assembly
768177768177
768177768177
768177 FIN27207FIN27207
FIN27207FIN27207
FIN27207 Sockets Board (Pcb# 9603014)Sockets Board (Pcb# 9603014)
Sockets Board (Pcb# 9603014)Sockets Board (Pcb# 9603014)
Sockets Board (Pcb# 9603014)
140228 CONJK151 Stereo Jack Socket
CONJK141 XLR Female Socket
768145768145
768145768145
768145 FIN27201FIN27201
FIN27201FIN27201
FIN27201 Inputs Board (Pcb# 9602004)Inputs Board (Pcb# 9602004)
Inputs Board (Pcb# 9602004)Inputs Board (Pcb# 9602004)
Inputs Board (Pcb# 9602004)
110293 * 2sw 2pos Slider Switch
110255 * 6sw 3pos Vertical Slider Switch
100061 * TL072 Dual J-Fet Operational Amplifier (Replace BA-4560 For
Service)
070245 * 100K 20% Vertical Linear Trimmer
070125 * 1K 20% Vertical Linear Trimmer
042625 * 15K0 1/4W 1% Metalized Film Resistor
030085 * 2u2 50V 20% Vert Electrolytic Bipolar Capacitor
Supply AssemblySupply Assembly
Supply AssemblySupply Assembly
Supply Assembly
768179768179
768179768179
768179 FIN27206FIN27206
FIN27206FIN27206
FIN27206 Fuse Board (Pcb# 9610035)Fuse Board (Pcb# 9610035)
Fuse Board (Pcb# 9610035)Fuse Board (Pcb# 9610035)
Fuse Board (Pcb# 9610035)
110030 * T10A Fuse 5x20mm (EU)
768180768180
768180768180
768180 FIN27208FIN27208
FIN27208FIN27208
FIN27208 Supply Board (Pcb# 9610039)Supply Board (Pcb# 9610039)
Supply Board (Pcb# 9610039)Supply Board (Pcb# 9610039)
Supply Board (Pcb# 9610039)
080607 * KBPC25 25A 200V Rectifier Diode Bridge
030889 * 10000u 100V -10+50% V Electrolytic Capacitor FS
030891 CAPELJ81 * 10000u 63V -10+50% Vert Electrolytic Capacitor FS
Protections & Display AssembliesProtections & Display Assemblies
Protections & Display AssembliesProtections & Display Assemblies
Protections & Display Assemblies
768147768147
768147768147
768147 FIN27209FIN27209
FIN27209FIN27209
FIN27209 Led On/Off Board (Pcb# 9405022)Led On/Off Board (Pcb# 9405022)
Led On/Off Board (Pcb# 9405022)Led On/Off Board (Pcb# 9405022)
Led On/Off Board (Pcb# 9405022)
768178768178
768178768178
768178 FIN27202FIN27202
FIN27202FIN27202
FIN27202 Display Board (Pcb# 9610036)Display Board (Pcb# 9610036)
Display Board (Pcb# 9610036)Display Board (Pcb# 9610036)
Display Board (Pcb# 9610036)
080742 * Led 3mm Wide Diffused Red-Grn
080710 * Led 3mm 60deg Diffused Yel
080705 * Led 3mm 60deg Diffused Red
090194 * BC560 TO92 LN Pnp Transistor
RESVRD01 * 4K7 Linear 16mm Rotary Potentiometer
768146768146
768146768146
768146 FIN27203FIN27203
FIN27203FIN27203
FIN27203 Protections Board (Pcb# 9610038)Protections Board (Pcb# 9610038)
Protections Board (Pcb# 9610038)Protections Board (Pcb# 9610038)
Protections Board (Pcb# 9610038)
110308 * Relay 24V / 1Switch no 20A 250V
110006 * T100mA Fuse 5x20mm (EU)
110004 * T400mA Fuse 5x20mm (EU)
100067 * LM337 1.2-37V 1.5A Adjustable Regulator
100066 * LM317 1.2-37V 1.5A Adjustable Regulator
090920 * MJE802 TO126 Npn Darl Transistor
090194 * BC560 TO92 LN Pnp Transistor
090183 * BC550 TO92 LN Npn Transistor
080550 * 2N5060 30V 0.8A Scr Thyristor
080282 * 13V 1W 5% Zener Diode
080168 * W02M 1.5A Rectifier Diodes Bridge
080156 * 1N4002 1A 100V Rectifier Diode
080103 * 1N4148 100mA 75V Signal Diode
020493 * 100n 250Vac MKP EMI Capacitor “Siemens”
Power Channels AssemblyPower Channels Assembly
Power Channels AssemblyPower Channels Assembly
Power Channels Assembly
737089737089
737089737089
737089 FIN27213FIN27213
FIN27213FIN27213
FIN27213 Dual Power Channels AssemblyDual Power Channels Assembly
Dual Power Channels AssemblyDual Power Channels Assembly
Dual Power Channels Assembly
768148768148
768148768148
768148 FIN27204FIN27204
FIN27204FIN27204
FIN27204 **
**
*Single Driver Board (Pcb#9610037)Single Driver Board (Pcb#9610037)
Single Driver Board (Pcb#9610037)Single Driver Board (Pcb#9610037)
Single Driver Board (Pcb#9610037)
100937 ** MPQ6002 Quad Compl Pair Trans
100931 ** MC34081 Single J-Fet Operational Amplifier
100928 ** TLP521-4 Quad Optocoupler
090201 ** 2N5401 TO92 Pnp Transistor
090200 ** 2N5550 TO92 Npn Transistor
090194 ** BC560 TO92 LN Pnp Transistor
090183 ** BC550 TO92 LN Npn Transistor
080293 ** 15V 1W 5% Zener Diode
080245 ** 7V5 1W 5% Zener Diode
080103 ** 1N4148 100mA 75V Signal Diode
070207 ** 22K 20% Vertical Linear Trimmer
042485 ** 1K00 1/4w 1% Metalized Film Resistor
030715 ** 1000u 6v3 20% Vert Electrolytic Capacitor
030247 ** 10u 25V 20% Vert Electrolytic Bipolar Capacitor
727590727590
727590727590
727590 FIN27211FIN27211
FIN27211FIN27211
FIN27211 **
**
*Dual Power AssemblyDual Power Assembly
Dual Power AssemblyDual Power Assembly
Dual Power Assembly
727591 ** Single Power Board (Pcb#9610034) (with heatsink)
768149 *** Single Power Board (Pcb#9610034) (without heatsink)
230557 **** 1uh Hor Coil For Amplifier
140891 **** 3 Contacts Hor Male Single-Strip
090917 **** MJE350 TO126 Pnp Transistor
090916 **** MJE340 TO126 Npn Transistor
090194 **** BC560 TO92 LN Pnp Transistor
090183 **** BC550 TO92 LN Npn Transistor
080293 **** 15V 1W 5% Zener Diode
080171 **** FE6B 6A 100V Fast Recovery Diode
080167 **** 1N5403 3A 300V Rectifier Diode
080158 **** 1N4006 1A 800V Rectifier Diode
080156 **** 1N4002 1A 100V Rectifier Diode
080103 **** 1N4148 100mA 75V Signal Diode
070125 **** 1K 20% Vertical Linear Trimmer
060591 **** 8K2 2W 10% Resistor
060571 **** 5K6 2W 10% Resistor
060174 **** 2E7 5W 10% Wire Resistor
060034 **** 0E15 5W 5% Wire Resistor
060033 **** 0E1 5W 5% Wire Resistor
340752 *** TO3 Mica Washer
340750 *** TO126 Mica Washer
340079 *** TO220 Mica Washer
340078 *** TO220 Insulated Bush
140626 *** TO3 Socket
100925 *** LM334 Adjustable Current Source TO92
090920 SMCTRB21 *** MJE802 TO126 Npn Darl Transistor
090919 SMCTRA01 *** MJE15031 TO220 Pnp Transistor
090918 SMCTR991 *** MJE15030 TO220 Npn Transistor
090917 SMCTRA11 *** MJE350 TO126 Pnp Transistor
090916 SMCTR951 *** MJE340 TO126 Npn Transistor
090915 SMCTRB61 *** MJE5850 TO220 Pnp Transistor
090914 SMCTRB11 *** MJE13007 TO220 Npn Transistor
090911 SMCTR961 *** MJ15023B TO3 Pnp Transistor (Dual Factory Red Selection)
090908 SMCTR971 *** MJ15022B TO3 Npn Transistor (Dual Factory Red Selection)
090905 SMCTR571 *** MJ15004B TO3 Pnp Transistor
090902 SMCTR581 *** MJ15003B TO3 Npn Transistor
080818 *** PTC 70 P341-C100 Siemens
727589727589
727589727589
727589 FIN27212FIN27212
FIN27212FIN27212
FIN27212 **
**
*Fan 24Vdc 80x25mmFan 24Vdc 80x25mm
Fan 24Vdc 80x25mmFan 24Vdc 80x25mm
Fan 24Vdc 80x25mm
Note:Note:
Note:Note:
Note:
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 asterisk = 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 name,
3) Module code,
4) Reference name,
5) Quantity number.
PROTECT PROTECT SIGN/CLIP SIGN/CLIP
BRIDGESTEREO PARALLEL
AB
P1000
PROFESSIONAL POWER AMPLIFIER
POWER
ON
CH. B CH. A
WARNING !
RISK OF HAZARDOUS ENERGY
MAKE PROPER SPEAKERS CONNECTIONS
REFER TO OWNER'S MANUAL BEFORE USING
OUTPUTS
HOT
COLD
GND
WIRING
SENSITIVITY
1.125 V 0.775 V
EARTH
MODE
CH. B CH. A
INPUTS
21 3
AC~
SER.
MOD.
MADE
IN
INDIA
BRIDGE
PIN 1 PIN 1+
P1000
PROFESSIONAL
POWER AMPLIFIER
MIN. LOAD 4
MIN. LOAD 8
MIN. LOAD 4
BRIDGE
P
A
R
A
L L
E
L
S
T
E
R
E
O
BALANCED BALANCED
AC
~
by
DESIGNED AND
ENGINEERED IN ITALY
AVIS:
RISQUE DE CHOC ELECTRIQUE-NE PASOUVRIR
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION
"WARNING"
TO REDUCE THE RISK OF
FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE.