CARVIN HT760M Operating Manual

This symbol is intended to
alert the user to the pres-
ence of uninsulated "dan-
RISK OF ELECTRIC SHOCK
gerous voltage" within the
product's enclosure that may be of suf-
ficient magnitude to constitute a risk of
electric shock to persons.
IMPORTANT! FOR YOUR PROTECTION, PLEASE READ THE FOLLOWING:
WATER AND MOISTURE: Appliance should not be used near water (near a bathtub, washbowl,
kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc). Care should be taken
so that objects do not fall and liquids are not spilled into the enclosure through openings.
POWER SOURCES: The product should be connected to a power supply only of the type described
in the operating instructions or as marked on the appliance.
GROUNDING OR POLARIZATION: Precautions should be taken so that the grounding or polar-
ization is not defeated.
POWER CORD PROTECTION: Power supply cords should be routed so that they are not likely
to be walked on or pinched by items placed upon or against them, paying particular attention
to cords at plugs, convenience receptacles, and the point where they exit from the appliance.
SERVICING: The user should not attempt to service the appliance beyond that described in the
operating instructions. All other servicing should be referred to qualified service personnel.
FUSING: If your unit is equipped with a fuse receptacle, replace only with the same type fuse.
Refer to replacement text on the unit for correct fuse type.

SAFETY INSTRUCTIONS (EUROPEAN)

The conductors in the AC power cord are colored in accordance with the following code.
GREEN & YELLOW—Earth
U.K. MAIN PLUG WARNING: A molded main plug that has been cut off from the cord is
unsafe. NEVER UNDER ANY CIRCUMSTANCES SHOULD YOU INSERT A DAMAGED
OR CUT MAIN PLUG INTO A POWER SOCKET.

REPLACEMENT PARTS LIST

Parts list for HT760M Power Amplifier
Binding Post, 2-way, Red/Black .................................................03-10450
Cover, Black 18GA Steel ............................................................10-82005
Chassis ......................................................................................10-07509
Fan, 24VDC 80mm.....................................................................70-02408
Fan Guard, 80x80mm ................................................................03-90080
Handle, 2-space rack .................................................................10-11120
Knob, Black, 1.25" DIA ..............................................................07-09001
Stand-off, Al, 1.5" Hex, 6-32......................................................03-63315
Toroid insulator pad 3.8" OD .....................................................03-15004
Front cover .............................................................................10-07501-2
Rear label ..................................................................................77-07508
Power cord (120V) ....................................................................05-01603
Power cord (230V) ....................................................................05-01903
10 Amp Circuit breaker (120V) ..................................................70-28110
6 Amp Circuit breaker (230V) ....................................................70-28106
Toroid (120V) ............................................................................15-75160
Toroid (230V) ............................................................................15-75260
C1, Capacitor 10KµF 63V, Poly 20% .........................................42-10363
C2B, Capacitor 10KµF 63V, Poly 20%.......................................42-10363
R30, 1/4W Resistor 47K, .35" prep. 5% Carbon......................50-47045
Parts list for Printed Cicuit Card
Ref. Des. Description
A1 IC Op Amp NE5532 Linear Output
A2 IC Op Amp MC4558 CP1 Dual HFREQ
A3 IC Op Amp NE5532 Linear Output
A4 IC Op Amp NE5532 Linear Output
A5 IC Op Amp MC4558 CP1 Dual HFREQ
A6 IC Op Amp MC4558 CP1 Dual HFREQ
A7 IC Op Amp MC4558 CP1 Dual HFREQ
A8 IC Op Amp NE5532 Linear Output
BP1 Binding Post Red/Black Combo
BP2 Binding Post Red/Black Combo
BR1 Diode Bridge AC/DC PCB MTG
C3 Capacitor 1000µF 35V Electrolytic 20%
C4 Capacitor 1000µF 35V Electrolytic 20%
C5 Capacitor 0.047µF 100V Poly 10%
C6 Capacitor 0.047µF 100V Poly 10%
C7 Capacitor 220µF 50V Electrolytic 20%
C8 Capacitor 10µF 50V Electrolytic 20%
C9 Capacitor 0.047µF 100V Poly 10%
C10 Capacitor 0.047µF 100V Poly 10%
C11 Capacitor 0.047µF 100V Poly 10%
C15 Capacitor 0.047µF 100V Poly 10%
C16 Capacitor 0.047µF 100V Poly 10%
C17 Capacitor 0.047µF 100V Poly 10%
C18 Capacitor 470µF 25V Electrolytic 20%
C100 Capacitor 27PF 500V Ceramic 5%
C101 Capacitor 27PF 500V Ceramic 5%
C102 Capacitor 22µF 50V Electrolytic 20%
C104 Capacitor 27PF 500V Ceramic 5%
C105 Capacitor 0.047µF 100V Poly 10%
C110 Capacitor 0.001µF 100V Poly 10%
C111 Capacitor 22µF 50V Electrolytic 20%
C115 Capacitor 27PF 500V Ceramic 5%
C116 Capacitor 56PF 500V Ceramic 5%
C117 Capacitor 120PF 500V Ceramic 5%
C118 Capacitor 10µF 63V Electrolytic 20%
C119 Capacitor 0.047µF 100V Poly 10%
C120 Capacitor 0.001µF 100V Poly 10%
C121 Capacitor 0.068µF 100V Poly 10%
C200 Capacitor 27PF 500V Ceramic 5%
C201 Capacitor 27PF 500V Ceramic 5%
C202 Capacitor 22µF 50V Electrolytic 20%
C204 Capacitor 27PF 500V Ceramic 5%
C205 Capacitor 0.047µF 100V Poly 10%
C210 Capacitor 0.001µF 100V Poly 10%
C211 Capacitor 22µF 50V Electrolytic 20%
C215 Capacitor 27PF 500V Ceramic 5%
C216 Capacitor 56PF 500V Ceramic 5%
C217 Capacitor 120PF 500V Ceramic 5%
C218 Capacitor 0.047µF 100V Poly 10%
C219 Capacitor 0.047µF 100V Poly 10%
C220 Capacitor 0.001µF 100V Poly 10%
C221 Capacitor 0.068µF 100V Poly 10%
This symbol is
CAUTION
intended to alert the
user to the presence of
important operating
DO NOT OPEN
and maintenance (servicing) instruc-
tions in the literature accompanying
the appliance.
BLUE—Neutral BROWN—Live
Carvin P/N Ref. Des. Description
D1 Diode 1N4003 Rect Gen 1A 200V
D2 Diode 1N4003 Rect Gen 1A 200V
D3 Diode 1N4003 Rect Gen 1A 200V
D4 Diode 1N4003 Rect Gen 1A 200V
D5 Diode 1N4003 Rect Gen 1A 200V
D6 Diode 1N4003 Rect Gen 1A 200V
D7 Diode 1N4003 Rect Gen 1A 200V
D8 LED Red small #204HD 3mm T-1.0
D9 LED Yellow small #204YD 3mm T-1.0
D10 Diode 1N4003 Rect Gen 1A 200V
D11 Diode 1N4003 Rect Gen 1A 200V
D12 Diode 1N4003 Rect Gen 1A 200V
D13 Diode 1N4003 Rect Gen 1A 200V
D100 Diode 1N4003 Rect Gen 1A 200V
D101 Diode 1N4003 Rect Gen 1A 200V
D102 LED Green small #204GD 3mm T-1.0
D103 LED Red small #204HD 3mm T-1.0
D104 LED Red small #204HD 3mm T-1.0
D106 Diode 1N4003 Rect Gen 1A 200V
D107 Diode 1N4003 Rect Gen 1A 200V
D108 Diode 1N4003 Rect Gen 1A 200V
D109 Diode 1N4003 Rect Gen 1A 200V
Carvin P/N
D200 Diode 1N4003 Rect Gen 1A 200V
60-55320
D201 Diode 1N4003 Rect Gen 1A 200V
60-45580
D202 LED Green small #204GD 3mm T-1.0
60-55320
D203 LED Red small #204HD 3mm T-1.0
60-55320
D204 LED Red small #204HD 3mm T-1.0
60-45580
D205 Diode 1N4003 Rect Gen 1A 200V
60-45580
D206 Diode 1N4003 Rect Gen 1A 200V
60-45580
D207 Diode 1N4003 Rect Gen 1A 200V
60-55320
D208 Diode 1N4003 Rect Gen 1A 200V
03-10400
D209 Diode 1N4003 Rect Gen 1A 200V
03-10400
H1-A Header 4 Pin AMP 9A 600V PCB MTG
60-35041
H1-B Header 4 Pin AMP 9A 600V PCB MTG
47-10235
H2 Header 2 Pin Vert Panduit PCB MTG
47-10235
H2-A Header 4 Pin Vert SHS 2.5mm PCB MTG
46-47312
H2-B Header 4 Pin Vert SHS 2.5mm PCB MTG
46-47312
H3-A Header 10 Pin Vert SHS 2.5mm PCB MTG
47-22151
H3-B Header 10 Pin Vert SHS 2.5mm PCB MTG
47-10051
H4-A Header 10 Pin Vert SHS 2.5mm PCB MTG
46-47312
H4-B Header 10 Pin Vert SHS 2.5mm PCB MTG
46-47312
H5 Header 2 Pin Vert Panduit PCB MTG
46-47312
H6-A Header 4 Pin AMP 9A 600V PCB MTG
46-47312
H6-B Header 4 Pin AMP 9A 600V PCB MTG
46-47312
H7 Header 9 Pin AMP 9A 600V PCB MTG
46-47312
J100 XLR Jack Female Neutrik Vert PCB MTG
47-47125
J101 Phone Jack, 1/4" 7 Pin Plastic, 24mm Tall
45-27052
J102 Phone Jack, 1/4" 3 Pin Plastic, 24mm Tall
45-27052
J200 XLR Jack Female Neutrik Vert PCB MTG
47-22051
J201 Phone Jack, 1/4" 7 Pin Plastic, 24mm Tall
45-27052
J202 Phone Jack, 1/4" 3 Pin Plastic, 24mm Tall
46-47312
K100 Relay 24V12A SPDT SIEMENS PCB MGT
46-10212
K200 Relay 24V12A SPDT SIEMENS PCB MGT
47-22051
L100 Inductor 3.3µH Air Core Spool
45-27052
L200 Inductor 3.3µH Air CoreSpool
45-56052
OP1 Opto Isolator VTL5C2
45-12052
OP2 Opto Isolator VTL5C2
47-10061
P100 Pot. B10Kx2 41Clk Brkt Rot Knurled 90°
46-47312
P101 Pot. Trimmer 5K Vert PCB MTG
46-10212
P200 Pot. B10Kx2 41Clk Brkt Rot Knurled 90°
46-68312
P201 Pot. Trimmer 5K Vert PCB MTG
45-27052
Q1 Transistor Darlington NPN MPSA14
45-27052
Q2 Transistor 2N5400 PNP AMP TO-92
47-22051
Q100 Transistor Darlington NPN MPSA14
45-27052
Q101 Transistor TIP31C 3A 100V NPN TO-220
46-47312
Q102 Transistor MPSW42 HV 1.0W NPN T0-237
46-10212
Q103 Transistor CENW92 HV PNP 1.0W TO-92
47-22051
Q104 Transistor TIP32C 3A 100V PNP TO-220
45-27052
Q105 Transistor TIP31C 3A 100V NPN TO-220
45-56052
Q106 Transistor TIP31C 3A 100V NPN TO-220
45-12052
Q107 Transistor MJL21194 NPN 16A 250V 200W
46-47312
Q108 Transistor MJL21194 NPN 16A 250V 200W
46-47312
Q109 Transistor MJL21193 PNP 16A 250V 200W
46-10212
Q110 Transistor MJL21193 PNP 16A 250V 200W
46-68312
LIMITED WARRANTY
Your Carvin product is guaranteed against failure for ONE YEAR unless otherwise stated. Carvin
will service and supply all parts at no charge to the customer providing the unit is under warranty.
Shipping costs are the responsibility of the customer. CARVIN DOES NOT PAY FOR PARTS OR SER-
VICING OTHER THAN OUR OWN. A COPY OF THE ORIGINAL INVOICE IS REQUIRED TO VERIFY
YOUR WARRANTY. Carvin assumes no responsibility for horn drivers or speakers damaged by this
unit. This warranty does not cover, and no liability is assumed, for damage due to: natural disasters,
accidents, abuse, loss of parts, lack of reasonable care, incorrect use, or failure to follow instruc-
tions. This warranty is in lieu of all other warranties, expressed or implied. No representative or person
is authorized to represent or assume for Carvin any liability in connection with the sale or servicing
of Carvin products. CARVIN SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES.
When RETURNING merchandise to the factory, you may call for a return authorization number.
Describe in writing each problem. If your unit is out of warranty, you will be charged the current
FLAT RATE for parts and labor to bring your unit up to factory specifications.
HELP SECTION

1) WILL NOT TURN ON

Check the power to the unit. Check for tripped main circuit breakers, unplugged extension cords
or power-strip switches that may be turned off. Check the amps circuit breaker on the rear panel.
If the black curved center button is in the out position, push it in to reset. If the breaker contin-
ues to trip, check your speaker cables and total speaker impedance. If the amps circuit breaker
will not reset, then the amp will require servicing.

2) MAINTAINING YOUR EQUIPMENT

Avoid spilling liquids or allowing any other foreign matter inside the unit. The panel of your unit can
be wiped from time to time with a dry or slightly damp cloth in order to remove dust and bring back
the new look. As with all pro gear, avoid prolonged use in caustic environments (salt air). When
used in such an environment, be sure the amplifier is adequately protected by rack, covers, etc..
CAUTION
RISK OF ELECTRIC SHOCK
Carvin P/N Ref. Des. Description
60-40030 Q200 Transistor Darlington NPN MPSA14
60-40030 Q202 Transistor MPSW42 HV 1.0W NPN T0-237
60-40030 Q203 Transistor CENW92 HV PNP 1.0W TO-92
60-40030 Q204 Transistor TIP32C 3A 100V PNP TO-220
60-40030 Q205 Transistor TIP31C 3A 100V NPN TO-220
60-40030 Q206 Transistor TIP31C 3A 100V NPN TO-220
60-40030 Q207 Transistor MJL21194 NPN 16A 250V 200W
60-75320 Q208 Transistor MJL21194 NPN 16A 250V 200W
60-75340 Q209 Transistor MJL21193 PNP 16A 250V 200W
60-40030 Q210 Transistor MJL21193 PNP 16A 250V 200W
60-40030 R1 1/4W Resistor 2.2K .35" prep. 5% Carbon
60-40030 R2 1/4W Resistor 3.3K .35" prep. 5% Carbon
60-40030 R3 1/4W Resistor 100K .35" prep. 5% Carbon
60-40030 R4 1/4W Resistor 150Ω .35" prep. 5% Carbon
60-40030 R5 1/4W Resistor 39K .35" prep. 5% Carbon
60-75330 R6 1/4W Resistor 39K .35" prep. 5% Carbon
60-75320 R7 1/4W Resistor 470K .35" prep. 5% Carbon
60-75320 R8 1/4W Resistor 470K .35" prep. 5% Carbon
60-40030 R9 1/4W Resistor 22K .35" prep. 5% Carbon
60-40030 R10 1/4W Resistor 22K .35" prep. 5% Carbon
60-40030 R11 1/4W Resistor 20K .35" prep. 5% Carbon
60-40030 R12 1/4W Resistor 6.8K .35" prep. 5% Carbon
60-40030 R13 1/4W Resistor 2.2M .35" prep. 5% Carbon
60-40030 R14 1/4W Resistor 20K .35" prep. 5% Carbon
60-75330 R15 1/4W Resistor 10K .35" prep. 5% Carbon
60-75320 R16 Not Used
60-75320 R17 1/4W Resistor 22K .35" prep. 5% Carbon
60-40030 R18 1/4W Resistor 1K .35" prep. 5% Carbon
60-40030 R19 1/4W Resistor 10K .35" prep. 5% Carbon
60-40030 R20 1/4W Resistor 10K .35" prep. 5% Carbon
60-40030 R22 1/4W Resistor 5.6K .35" prep. 5% Carbon
60-40030 R23 1/4W Resistor 470K .35" prep. 5% Carbon
23-08604 R24 1/4W Resistor 10K .35" prep. 5% Carbon
23-08604 R25 1/4W Resistor 1K .35" prep. 5% Carbon
23-10002 R26 1/4W Resistor 4.7K .35" prep. 5% Carbon
23-11004 R28 1/4W Resistor 220Ω .35" prep. 5% Carbon
23-11004 R31 1/4W Resistor 100K .35" prep. 5% Carbon
23-11010 R100 1/4W Resistor 10K .35" prep. 5% Carbon
23-11010 R101 1/4W Resistor 10K .35" prep. 5% Carbon
23-11010 R102 1/4W Resistor 22K .35" prep. 5% Carbon
23-11010 R103 1/4W Resistor 22K .35" prep. 5% Carbon
23-10002 R104 1/4W Resistor 2.2K .35" prep. 5% Carbon
23-08604 R105 1/4W Resistor 220Ω .35" prep. 5% Carbon
23-08604 R106 1/4W Resistor 470K .35" prep. 5% Carbon
23-08609 R107 1/4W Resistor 470K .35" prep. 5% Carbon
21-40000 R108 1/4W Resistor 1K .35" prep. 5% Carbon
21-06457 R109 Not Used
21-06453 R110 1/4W Resistor 470K .35" prep. 5% Carbon
21-40000 R111 1/4W Resistor 470Ω .35" prep. 5% Carbon
21-06457 R112 1/4W Resistor 1.5K .35" prep. 5% Carbon
21-06453 R115 1/4W Resistor 10K .35" prep. 5% Carbon
70-05712 R116 1/4W Resistor 10K .35" prep. 5% Carbon
70-05712 R117 1/4W Resistor 2.2K .35" prep. 5% Carbon
15-00165 R118 1/4W Resistor 47K .35" prep. 5% Carbon
15-00165 R119 1/4W Resistor 4.7K .35" prep. 5% Carbon
60-50253 R120 1/4W Resistor 100Ω .35" prep. 5% Carbon
60-50253 R121 1/4W Resistor 100Ω .35" prep. 5% Carbon
71-10301 R122 1/4W Resistor 4.7K .35" prep. 5% Carbon
71-25000 R123 1/4W Resistor 680Ω .35" prep. 5% Carbon
71-10301 R124 1/4W Resistor 4.7K .35" prep. 5% Carbon
71-25000 R125 1/4W Resistor 2.2K .35" prep. 5% Carbon
60-00014 R126 1/4W Resistor 1K .35" prep. 5% Carbon
60-54000 R127 1/4W Resistor 680Ω .35" prep. 5% Carbon
60-00014 R128 1/4W Resistor 2.2K .35" prep. 5% Carbon
60-31000 R129 1/2W Resistor 4.7Ω 0.5 prep. 5% Carbon
60-00042 R130 1/4W Resistor 150Ω .35" prep. 5% Carbon
60-00092 R131 1/2W Resistor 4.7Ω 0.5 prep. 5% Carbon
60-32000 R132 5W Resistor 0.22Ω Vert 5% Sand Bar
60-31000 R133 5W Resistor 0.22Ω Vert 5% Sand Bar
60-31000 R134 5W Resistor 0.22Ω Vert 5% Sand Bar
60-21194 R135 5W Resistor 0.22Ω Vert 5% Sand Bar
60-21194 R136 1/4W Resistor 1K .35" prep. 5% Carbon
60-21193 R137 1/4W Resistor 10K .35" prep. 5% Carbon
60-21193 R138 1/4W Resistor 100K .35" prep. 5% Carbon
REFER SERVICING TO QUALIFIED SER-
VICE PERSONNEL! THIS UNIT CON-
TAINS HIGH VOLTAGE INSIDE!
Carvin P/N Ref. Des. Description
60-00014 R139 1/4W Resistor 100K .35" prep. 5% Carbon
60-00042 R140 1/4W Resistor 33K .35" prep. 5% Carbon
60-00092 R144 2W Resistor 10Ω 0.8 prep. 5% Metal
60-32000 R150 2W Resistor 10Ω 0.8 prep. 5% Metal
60-31000 R200 1/4W Resistor 10K .35" prep. 5% Carbon
60-31000 R201 1/4W Resistor 10K .35" prep. 5% Carbon
60-21194 R202 1/4W Resistor 22K .35" prep. 5% Carbon
60-21194 R203 1/4W Resistor 22K .35" prep. 5% Carbon
60-21193 R204 1/4W Resistor 2.2K .35" prep. 5% Carbon
60-21193 R205 1/4W Resistor 220Ω .35" prep. 5% Carbon
50-22035 R206 1/4W Resistor 470K .35" prep. 5% Carbon
50-33035 R207 1/4W Resistor 470K .35" prep. 5% Carbon
50-10055 R208 1/4W Resistor 1K .35" prep. 5% Carbon
50-15025 R209 Not Used
50-39045 R210 1/4W Resistor 470K .35" prep. 5% Carbon
50-39045 R212 1/4W Resistor 470Ω .35" prep. 5% Carbon
50-47055 R215 1/4W Resistor 10K .35" prep. 5% Carbon
50-47055 R216 1/4W Resistor 10K .35" prep. 5% Carbon
50-22045 R217 1/4W Resistor 2.2K .35" prep. 5% Carbon
50-22045 R218 1/4W Resistor 47K .35" prep. 5% Carbon
50-20045 R219 1/4W Resistor 4.7K .35" prep. 5% Carbon
50-68035 R220 1/4W Resistor 100Ω .35" prep. 5% Carbon
50-22065 R221 1/4W Resistor 100Ω .35" prep. 5% Carbon
50-20045 R222 1/4W Resistor 4.7K .35" prep. 5% Carbon
50-10045 R223 1/4W Resistor 680Ω .35" prep. 5% Carbon
R224 1/4W Resistor 4.7K .35" prep. 5% Carbon
50-22045 R225 1/4W Resistor 2.2K .35" prep. 5% Carbon
50-10035 R226 1/4W Resistor 1K .35" prep. 5% Carbon
50-10045 R227 1/4W Resistor 680Ω .35" prep. 5% Carbon
50-10045 R228 1/4W Resistor 2.2K .35" prep. 5% Carbon
50-56035 R229 1/2W Resistor 4.7Ω 0.5 prep. 5% Carbon
50-47055 R230 1/4W Resistor 150Ω .35" prep. 5% Carbon
50-10045 R231 1/2W Resistor 4.7Ω 0.5 prep. 5% Carbon
50-10035 R232 5W Resistor 0.22Ω Vert 5% Sand Bar
50-47035 R233 5W Resistor 0.22Ω Vert 5% Sand Bar
50-22025 R234 5W Resistor 0.22Ω Vert 5% Sand Bar
50-10055 R235 5W Resistor 0.22Ω Vert 5% Sand Bar
50-10045 R236 1/4W Resistor 1K .35" prep. 5% Carbon
50-10045 R237 1/4W Resistor 10K .35" prep. 5% Carbon
50-22045 R238 1/4W Resistor 100K .35" prep. 5% Carbon
50-22045 R239 1/4W Resistor 100K .35" prep. 5% Carbon
50-22035 R240 1/4W Resistor 33K .35" prep. 5% Carbon
50-22025 R244 2W Resistor 10Ω 0.8 prep. 5% Metal
50-47055 R250 2W Resistor 10Ω 0.8 prep. 5% Metal
50-47055 S1 Switch DPDT Push, Vert Small PCB MTG
50-10035 S2 Switch DPDT Push, Vert Small PCB MTG
S3 Switch DPDT Push, Vert Small PCB MTG
50-47055 S4 Switch DPDT Push, Vert Small PCB MTG
50-47025 VR1 Voltage Regulator 7815 +15V 2A
50-15035 VR2 Voltage Regulator 7915 -15V 2A
50-10045 VR3 Voltage Regulator 7915 -15V 2A
50-10045
50-22035
50-47045
50-47035
50-10025
50-10025
50-47035
50-68025
50-47035
50-22035
50-10035
50-68025
50-22035
52-47005
50-15025
52-47005
55-02205
55-02205
55-02205
55-02205
50-10035
50-10045
50-10055
Carvin P/N
50-10055
50-33045
54-10015
54-10015
50-10045
50-10045
50-22045
50-22045
50-22035
50-22025
50-47055
50-47055
50-10035
50-47055
50-47025
50-10045
50-10045
50-22035
50-47045
50-47035
50-10025
50-10025
50-47035
50-68025
50-47035
50-22035
50-10035
50-68025
50-22035
52-47005
50-15025
52-47005
55-02205
55-02205
55-02205
55-02205
50-10035
50-10045
50-10055
50-10055
50-33045
54-10015
54-10015
25-02201
25-02201
25-02201
25-02201
60-78150
60-79150
60-79150