GTO-751EZ - spareparts.kenwood.it

Service Manual

GTO-751EZsubwoofer amplifier

- CONTENTS -

SPECIFICATIONS ………………………………………..2

CONNECTIONS……………………………………………3

BASIC TROUBLESHOOTING… ………………..……....6

PACKAGING EXPLODED VIEW ……………................7

EXPLODED VIEW …..………....…….….….…………....8

ELECTRICAL PARTS LIST……………………………....9

PCB DRAWINGS…………….……….……….…….……19

BLOCK DIAGRAM…………………………....….....……21

SCHEMATIC………..….…….……………….…...….…..22

GTO-751EZ

Number of Channels: 1

Power Output (CEA 2006A): 500W RMS x 1 channel at 4 ohms, 14.4V DC, <1.0% THD 750W RMS x 1 channel at 2 ohms, 14.4V DC, <1.0% THD

Max Power: 1200W x 1 channel at 2 ohms (50Hz), 15.5V DC, 10% THD

Frequency Response: 10Hz – 280Hz (±3dB)

Signal-to-Noise (@ 1W): > 80dB

Maximum Current Draw: 70A

Fuse Replacement: 40A x 2

Dimensions (D x H x W): 11-15/16" x 2-9/16" x 9-11/16" (302mm x 66mm x 246mm)

Weight: 9.0 lb (4.1kg)

GTO-751EZ

2

CONNECTING THE POWER AND GROUNDThe GTO subwoofer amplifiers are capable of delivering extremely high power levels, and require a heavy-duty and reliable connection to the vehicle’s electrical system to achieve optimal performance. Please adhere to the following instructions carefully.

Using the ConnectorsGTO subwoofer amplifiers use the same type of screw terminals for power and speaker connections. This type of terminal is easy to use, provides superior current transfer and allows the easy connection of large-gauge wire.

To use the connectors, use a Phillips screwdriver to loosen the connector’s set screw, insert the bare wire and tighten the set screw to secure the wire in the connector.

Loosen Screw

Insert Wire

Tighten Screw

Ground ConnectionConnect a wire (minimum 6AWG – 13.2mm2 – for the GTO-1001EZ; minimum 8AWG – 8.4mm2 – for the GTO-751EZ and GTO 501EZ) from the amplifier’s GND terminal directly to a solid point on the vehicle’s chassis. For a good connection, use sandpaper to clear the paint from the metal surface at this chassis location. Use a star-type lock washer to secure the wire’s connection.

-

Power Connectors

Audio System Head Unit

Remote Turn-On (optional)

> #18 AWG (0.82mm2) Wire

> #6AWG (13.2mm2) Wire – GTO-1001EZ> #8AWG (8.4mm2) Wire – GTO-751EZ/

GTO-501EZ

+12V

18" (46cm)

> #6AWG (13.2mm2) Wire – GTO-1001EZ> #8AWG (8.4mm2) Wire – GTO-751EZ/

GTO-501EZ

120A Fuse (GTO-1001EZ) 80A Fuse (GTO-751EZ) 50A Fuse (GTO-501EZ)

Chassis Ground (bare metal)

GTO-751EZ

3

Power Connection1. Connect a wire (minimum 6AWG – 13.2mm2 – for the GTO-1001EZ; minimum 8AWG – 8.4mm2 –for the

GTO-751EZ and GTO-501EZ) directly to the battery’s positive (+) terminal.

2. Install a fuse holder for a 120A fuse (GTO-1001EZ), 80A fuse (GTO-751EZ) or 50A Fuse (GTO-501EZ) on this wire within 18" (46cm) of the battery’s (+) terminal. Do not install the fuse in the holder at this time.

3. Route this wire to the amplifier’s location and connect it to the amplifier’s +12V terminal. Be sure to use appropriate grommets whenever routing wires through the firewall or other sheet metal. IMPORTANT: Failure to adequately protect the positive wire from potential damage may result in a vehicle fire.

4. When you are finished routing and connecting this wire, install the appropriate fuse in the holder you installed near the battery. (GTO-1001EZ = 120A fuse; GTO-751EZ = 80A fuse; GTO-501EZ = 50A fuse.)

SUBWOOFER CONNECTIONConnect the subwoofer to the amplifier’s Sub (+) and (–) terminals.

-

Subwoofer

GTO Subwoofer Amplifier

Always connect the (+) terminal on the amplifier to the (+) terminal on the subwoofer and the (–) terminal on the amplifier to the (–) terminal on the subwoofer.

IMPORTANT: Make sure the (+) and (–) bare wires do not touch each other or the other terminal at both the amplifier terminals and subwoofer terminals. Touching wires can cause a short circuit that can damage the amplifier.

NOTE: The minimum subwoofer impedance is 2 ohms.

CONNECTIONS

IMPORTANT: Disconnect the vehicle’s negative (–) battery terminal before beginning the installation.

If you have not already done so, remove the two end caps that cover the amplifier’s connectors as explained in Mounting the Amplifier, above. This will provide easier access to all of the amplifier’s connectors.

AUTO TURN-ON SWITCHNo remote turn-on connection is necessary because GTO amplifiers include signal-sensing turn-on, which will turn the amplifier on when it receives an audio signal at any of its input connectors. The amplifier will automatically turn off approximately five minutes after the input signal ceases.

If your audio system’s source unit includes a remote turn-on wire and you would prefer to use it, the amplifier will sense that you’ve used a remote turn-on wire and that connection will override the signal-sensing turn-on. If necessary, you can defeat the signal-sensing turn-on circuit by moving the Auto Turn-On switch to the “Off” position.

GTO-751EZ

4

INPUT CONNECTIONS

Input Connectors

Use RCA audio cables to connect source units with preamp-level outputs to the amplifier; use the supplied bare wire-to-RCA adapters to connect to source units that don’t have RCA output connectors.

Use a small Phillips screwdriver to loosen the adapter’s set screws and insert the speaker wires into the holes on the back of the adapter. Tighten the set screws to secure the wires.

Loosen Screw

Insert Wire

Tighten Screw

Always connect the (+) speaker wire to the (+) terminal on the adapter and the (–) speaker wire to the (–) terminal on the speaker.

IMPORTANT: Make sure the (+) and (–) bare wires do not touch each other. Touching wires can cause a short circuit that can damage the source unit or the amplifier.

When you’re finished, plug the adapter into the appropriate input connector on the amplifier.

• You can use either input connector to connect a source component with a single mono subwoofer output.

BASS BOOSTThe Bass Boost control provides up to 12dB of bass boost at 45Hz. Set this control according to your personal taste, but be careful not to set the control at a high enough level to cause audible distortion or bottoming of your subwoofer.

POWER/PROTECTION LED

Power/ Protection

LED

The GTO amplifier Power/Protection LED’s color indicates the amplifier’s operational status:

• LED is orange: Normal operation (power is on)

• LED is off: Amplifier is in standby mode

• LED is red: Amplifier is in protect mode

If the amplifier is in the protect mode (the LED is red), see Troubleshooting, on page 9.

GTO-751EZ

5

TROUBLESHOOTING

If your amplifier isn’t performing the way you think it should, check to see if the problem is covered in this section before calling your dealer or contacting JBL customer service.

PROBLEM CAUSES AND SOLUTIONS

No sound (the amplifier’s Power/ Protection LED is off):

• Check that the amplifier’s +12V and GND connections have been properly made.

• Check if the fuse on the +12V wire located near the battery is blown; if so, replace it with an identical fuse.

• Check all amplifier fuses; if any are blown, replace them with identical fuses.

• If you are using the amplifier’s REM connection for turn-on, check that the wire is properly connected to the audio system’s remote turn-on wire or to the vehicle’s ACC power terminal.

• If you are using the amplifier’s Auto Turn-On circuit for turn-on, check that the amplifier’s Auto Turn-On switch (on the amplifier’s bottom panel) is set in the “On” position.

No sound (the amplifier’s Power/ Protection LED is orange):

• Check that all amplifier input and speaker connections have been properly made.

• Check that the amplifier’s Gain control is not turned all the way down.

• Check that the vehicle audio system’s source unit’s volume control is not turned all the way down.

• If you have connected an optional Remote Bass Control (sold separately) to the amplifier, check that it is not turned all the way down (fully counterclockwise).

No sound (the amplifier’s Power/ Protection LED is red):

• Confirm that the vehicle’s electrical system is supplying between 9V and 16V DC to the amplifier. If the supply voltage is outside of this range, correct the condition before attempting to use the amplifier.

• If the amplifier has overheated, wait until it has cooled down before attempting to use it again.

• Disconnect all speakers from the amplifier and attempt to turn it on again:

– If the amplifier turns on (the Power/Protect LED is orange), there is a short circuit in one or more of the speaker wires. Correct all short circuits before reconnecting the speakers to the amplifier.

– If the amplifier does not turn on (the Power/Protect LED is still red), contact your authorized JBL dealer for assistance.

• If the optional Sub Channel Level control is connected to the amplifier, check that it is not turned all the way down (fully counterclockwise).

Sound is too quiet, even with the vehicle audio system’s head unit volume turned all the way up:

• Check the amplifier’s Input Level switch. If it is set to “Hi1,” turn the amplifier’s Gain controls all the way down and re-set the Input Level switch to “Low.” Then perform the Set the Gain procedure, on page 7, again.

Sound in the subwoofer is distorted:

• If the Input Level switch is set in the “Low” position, change the setting to “Hi1” and perform the Set the Gain procedure, on page 7, again for those channels.

• While listening to bass-heavy music, turn the Bass Boost control all the way down, and then gradually increase it until the distortion begins to return. Reduce the Bass Boost control setting slightly to eliminate the distortion and leave it set there.

• Check that the distortion is not originating from the vehicle audio system’s source unit.

The amplifier’s Gain LEDs constantly illuminate red while the amplifier is operating:

• Set the amplifier’s Gain LEDs switch in the “Off” position.

GTO-751EZ

6

GTO-751EZ

7

GTO-751EZ

8

p/n name spec qty position

AGTO751M0002 GTO-751EZ Harman-US,GTO-751EZ, 1

88AM03200264PCBA semi-finished

products

GTO-751EZ,AMP board,DIP process

test1

1.20203E+11 RCA jacksAV2,-8.4-13AN (WR) 2 holes on the

white the red 4-pin1 RCA1

1.21103E+11 Phone jack 6PIN black 90 1 JK5

10803000011Manganin

resistance

DIP 10 milliohms ± 1% of Manganese

Bronze to resistance 1.5 feet away

from the H is for 10.5MM 16.5MM

3 R180,R181,R182

30503000001Common-mode

inductance

Three-phase inductance 28 * 12mm

( 1.0 * 6P) * 2 +1.0 * 1P vertical core

K5A 13uH 7.5uH

1 L1P

20733000023Metal membrane

capacitance

DIP 104/250V ± 5% brown braid feet

away from 5mm4 C101,C102,C103,C124


capacitance

DIP 105/63V ± 5 feet away from the

5MM knitting belt brown MAX: 10.5MM *

10.5MM * 6.0MM

1 C25


inductance

DIP 35uH core 17.5 * 9.5 * 20mm 0.5 *

8P * 6TS vertical 4-pin1 L6

10403000110Metal oxide film

resistorsDIP 2W 120 ± 5% braid 2 R161,R162

2.21103E+11 RelayManufacturers Model: YL-224-C DC12V

30A transformational1 RL1


resistorsDIP 2W 2.2K ± 5% braid 1 R151


capacitance

DIP 224/100V ± 5% brown braid pitch

5mm miniaturization3 C133 C135 C134

20513000204Electrolytic

capacitor

DIP 330uF/35V ± 20% 8 * 16MM 105

Black3 C95,C96,C68


capacitance

DIP 335/100V ± 10% 105 ° C brown feet

away from 20.5mm4 C129,C130,C131,C132


capacitance

DIP 335/250V ± 10% 105 ° C brown feet

away from the 27mm1 C122


resistorsDIP 2W 4.7 ± 5% braid 1 R150

1.20103E+11 FuseholderThe DIP 2PIN combination to use BXS2-

091 F1


resistorsDIP, 43K , 2W, braid type, ± 1%, 1 R146


resistorsDIP 2W 470 ± 5% horizontal tall 10mm 1 R149

10503000018 Cement Resistor DIP 5W 47 ± 5% (vertical) two feet 1 R152

50703000011 Optical coupling 4N35 DIP6 1 U13

1.40203E+11 FuseDIP 40A/32V high temperature UL

certification Littelfuse Blade2


resistorsDIP, 6.8K , 2W, braid type, ± 5%, 2 R124,R127

40103000050 Rectifier diode DIP 6A10 1000V brand 1 D19

1.21103E+11 socketDIP,11PIN ,2.54mm, DIP, 11PIN

DIP, 2.54mm,1 JP10

GTO-751EZ

9


1.70503E+11 Shielded cable

1533 #28/ 1C+S +UL

2468

#26/7P ,11PIN,2.54MM,L=100MM

, XH , 1533 # 28 / (1C + S) * 2

shielded cable Black + UL # 2468 26/7P

red and white row, 11PIN 2.54MM, L =

100MM, double-headed with XH

terminal

1

1.20903E+11 Terminal BlocksDIP, 2PIN, JSZ2-25, black plastic, nickel-

plated folding feet1 JK4

1.21103E+11 Socket DIP, 3PIN, 2.54MM, 1 J0

1.70103E+11 Cable

2468 # 26 red and white cables, 3PIN,

2.54, L = 150mm, both ends of the 2.54

terminal

1


inductance

Four-phase inductance 0.65 * 4P

vertical core K6A 13 * 6 30uH1 L3

60203000097 IC DIP,CJ7812,TO-220, , 1 U1

60203000100 ICDIP, CJ7815, TO-220, gold seal long

power1 U3

60203000099 ICDIP, CJ7915, TO-220, gold seal long

power1 U8

40403000032 Bridge rectifiers

DIP, MUR1640CT, AKA, common

cathode, 16A/400V, fast recovery half-

bridge, the TO-220AB, SJ

2 D47,D48

40403000031 Bridge rectifiers

DIP, MUR1640CA, KAK, a total of Yang,

16A/400V, fast recovery half-bridge, TO-

220AB, SJ

2 D49,D50

1.20903E+11 Terminal Blocks

DIP, 3PIN, JSZ3-64A, black nickel-

plated feet fold under the Phillips

screws.

1 JK2

40903000072 LED DIP-color LED red / green 3PIN Yin 1 LED1

1.10103E+11 Band switchDIP,SHC-22P-09,2P2T Handle

length=6MM,1 SW4

1.10103E+11 Slide switch\DIP, the 4P3T handle long the G8, 23.6

* 9.4 * 12mm1 SW1S

50403000031 FETDIP AOT460 85A 60V TO-220 N-

CHANNEL6 M2,M3,M4,M6,M7,M8


capacitor

DIP, 3300uF/25V, 16 * 28 ± 20%, 105 °

C p = 7.5 high-frequency low resistance

<0.03 brand Acon

2 C63,C64

2.00403E+11High-frequency

toroid transformerCore 47 * 15 4.5T: 22.5T: 7.5T: 7.5T 1 T1

10503000039 Cement Resistor

DIP, 4.7K , 5W, ± 5% (vertical) two feet

away from 5mm, length 13 * W * H

25mm

1 R148

1.70903E+11 Copper jumperDIP 2.6MM, L = 80MM, high 28MM feet

on the tin2 J2,J3

50403000005 FET DIP IRFB 38N20D TO-220 4 M9,M10,M12,M13


capacitor

DIP, 2200uF100V, 30 * 27 feet away

from the 10mm, ± 20%, 105 ° C4 C97,C98,C99,C100

1.30213E+11 Socket DIP Pitch 2.5MM 2PIN-line 1 JK3

GTO-751EZ

10


30123000118 Power inductors

DIP, 55UH, 45A, feet away from the

51mm two-pin yellow paper wrapped

around pin 23 mm tinned

1 L5

88AM03100264PCBA semi-finished

products

GTO-751EZ, amplifier board, AI

processing outsourcing.1


capacitor

DIP 100uF/25V ± 20% 6.3 * 7mm 105

feet away from the knitting belt black

5mm

8C107,C108,C111,0C112,

C21,C153,C117,C148

20713000030Polyester

capacitors

DIP the 102/250V compiled belt feet

away from 5mm error of ± 20%1 C136


capacitor

DIP 220uF/16V ± 20% 6.3 * 11 105 feet

away from 5mm braid1 C158


capacitor

DIP 10uF/50V ± 20% 5 * 11 105 feet

away from 5mm Promise of braid style1 C59


capacitor

DIP 47uF/25V ± 20% 5 * 7 105 ° C braid

pitch 5mm black2 C115,C157

50403000021 FET DIP 2SK117BL TO-92 Tape-style 2 Q37,Q37M


capacitor

DIP, 100uF/25V, 6.3 * 11, The Promise,

± 20%, 85 ° C Promise of feet away from

5MM Tape

4 C138,C139,C86,C87

88AM03000264 PCBA GTO-751EZ, ,SMD , , 1

10103000008 chip resistor SMD 0 1/10W ±1% 0603 6R153,R154,R155,R156,R

99 R50M

10103000067 chip resistor SMD 1.5K 1/10W ±1% 0603 1 R135


10103000401 chip resistor SMD 100 1/8W ±1% 0805 3 R105,R98,R100

10103000024 chip resistor SMD 100K 1/10W ±1% 0603 6R11M,R30,R34,R41,R19

5,R172M

10103000406 chip resistor SMD 100K 1/8W ±5% 0805 1 R33

20113000008 chip capacitor SMD 101/50V 0603 NPO ±5% 3 C146,C147,C156

10103000014 chip resistor SMD 100 1/10W ±1% 0603 2 R101,R18M


capacitorSMD 100uF/25V 6.3 * 7.7 ± 20% 105 1 C20

20123000057 chip capacitor SMD 103/50V 0805 X7R ±10% 2 C24,C58

20123000007 chip capacitor SMD 104/50V 0603 X7R ±10% 21

C1,C2,C3,C4,C11,C12,C

13,C14,C15,C16,C17,C1

8,C26,C40,C41,C46,C47,

C48,C49,C72,C79

20123000059 chip capacitor SMD 104/50V 0805 X7R ±10% 21

C5,C19,C29,C30,C31,C3

2,C33,C34,C36,C37,C38,

C39,C44,C45,C70,C71,C

73,C74,C75,C76,C77

10103000022 chip resistor SMD 10K 1/10W ±1% 0603 13

R48,R54,R55,R56,R59,R

60,R61,R62,R115M,R18

3,R184,R185,R186

10103000405 chip resistor SMD 10K 1/8W ±1% 0805 8R44,R45,R46,R47,R50,R

114,R115,R11

10103000399 chip resistor SMD 10 1/8W ±1% 0805 8R136,R137,R138,R139,R

140,R142,R144,R145

10103000036 chip resistor SMD 110K 1/10W ±1% 0603 4 R157,R158,R159,R160

10103000033 chip resistor SMD 11K 1/10W ±1% 0603 2 R96,R97


10103000069 chip resistor SMD 15K 1/10W ±1% 0603 3 R27,R57,R191


GTO-751EZ

11





10103000026 chip resistor SMD 1M 1/10W ±1% 0603 1 R11A

40103000020 diode SMD 1N4148 DO-213AA 32

D22,D23,D24,D25,D37,D

38,D38M,D39M,D40,D40

M,D41M,D42,D43,D44,D

45,D46,D3,D4,D5,D6,D7,

D8,D9,D11,D13,D14,D15

,D17,D17M,D18,D57,D78

10103000126 chip resistor SMD 2.2K 1/10W ±1% 0603 9R14,R15,R16,R23,R24,R

25,R89,R93,R94

10103000449 chip resistor SMD 2.2K 1/8W ±5% 0805 6R19,R20,R22,R21,R72,R

73


60103000023 IC SMD IR2010S SOL-16 1 U11

10103000121 chip resistor SMD 220 1/10W ±1% 0603 2 R190,R112

10103000448 chip resistor SMD 220 1/8W ±1% 0805 1 R113

20123000120 chip capacitor SMD 222/1KV X7R 1206 ±10% TDK 2 C123,C125

20123000072 chip capacitor SMD 224/50V 0805 X7R ±10% 1 C60






10103000660 chip resistor SMD 2.7M 1/10W ±1% 0603 1 R192


40203000043 Zener diode SMD 3.9V DO-213AA 0.5W 1 DZ1




20123000077 chip capacitor SMD 332/50V 0805 X7R ±10% 1 C149


10103000265 chip resistor SMD 4.7K 1/10W ±1% 0603 12

R69,R8M,R28,R87,R110,

R111,R171,R172,R189,R

19M,R20M,R22M

10103000505 chip resistor SMD 4.7K 1/8W ±1% 0805 4 R106,R107,R108,R109

10103000624 chip resistor SMD,4.7 ,1W-2512,±5%, 2 R147,R175

40103000040 Rectifier diodeSMD FM4007 DO-214AC SMD FM4007

DO-214AC4 D31,D32,D33,D55

10103000272 chip resistor SMD 1/10W 47.5K ±1% 0603 8R165,R166,R167,R168,R

169,R170,R173,R174

10103000275 chip resistor SMD,47.5K ,1/8W-0805,±1%, 1 R178

10103000663 chip resistor SMD,470 ,1/3W-1210,±1%, 2 R90,R91


20113000053 chip capacitor SMD 471/50V 0603 NPO ±5% 1 C128

20113000079 chip capacitor SMD 471/50V 0805 NPO ±5% 1 C126

20123000085 chip capacitor SMD,472/100V,0805,X7R,±10%,TDK 4 C84,C85,C88,C89


R1,R3,R4,R5,R7,R8,R9,

R10M,R12,R13,R17M,R2

1M,R23M,R85,R125

10103000507 chip resistor SMD 47K 1/8W ±1% 0805 2 R6,R7M

GTO-751EZ

12


10103000501 chip resistor SMD 47 1/8W ±5% 0805 6R75,R76,R77,R79,R80,R

81


40203000050 Zener diode

SMD, 5.1V, DO-213AA, 0.5W, ± 2%,

0.1mA test current regulator value in the

4.85-5.25 range.

3 D35,D36,D51

50103000038 Transistor SMD MMBT5401 PNP SOT-23 10Q1,Q04,Q7,Q8,Q9,Q10,

Q11,Q11M,Q13,Q14

50203000060 Transistor SMD MMBT5551 NPN SOT-23 20

Q2,Q3,Q4,Q5,Q06,Q6,Q

18,Q19,Q20,Q21,Q22,Q2

2M,Q23,Q23M,Q24,Q25,

Q25M,Q26,Q27,Q28


10103000525 chip resistor SMD 56K 1/8W ±1% 0805 3 R116,R117,R119

10103000321 chip resistor SMD 6.04K 1/10W ±1% 0603 2 R17,R18

10103000648 chip resistor SMD,100 ,1W-2512,±5%, 1 R121

20123000099 chip capacitor SMD 102/500V 1206 X7R ±10% TDK 5 C90,C91,C92,C93,C94




60103000461 IC TC7WH04F 1 U9


60103000421 IC 74AHC1G04 SOT-235 1 U5

60103000235 IC SMD LM311 SOP-8 1 U10

60103000275 IC SMD LM393M SOP-8 ST 1 U17

40103000070 Rectifier diode SMD,MUR120,2512,ST,1A, 3 D52,D53,D54

40103000066 High-speed diode

SMD, fast recovery the diode RS1G,

400V 1A DO-214AC, Brand: the Tsuen

Mao core

6D20,D21,D26,D27,D28,D

29

50203000025 Transistor SMD BT2222 SOT-23 NPN 1 Q16

50703000006 OptocouplerSMD TLP181 SO8 (4 pin)

PHOTOCOUPLER brandTOSHIBA2 U7,U14

60103000383 IC SMD TL494C SO-16 1 U6

60103000129 IC SMD NE555 SOP-8 TI 1 U15

20133000009 chip capacitor SMD 106/16V 1206 X5R ±10% TDK 1 C151

20113000069 chip capacitor SMD 101/100V 0805 NPO ±5% TDK 2 C120,C121

20113000070 chip capacitor SMD 102/50V 0805 NPO ±5% 7C22,C51,C52,C53,C54,C

55,C128M

20113000082 chip capacitor SMD 102/50V 0603 NPO ±5% 3 C23,C56,C57

60103000062 IC. SMD BA4560F SOP-8 ROHM 3 U4,U12,U16

23AM03000166 PCBGTO751ez, ,236*164*1.6mm,FR-

4,REV T2-01,1

10103000130 chip resistor SMD 220K 1/10W ±1% 0603 6R39,R35,R36,R37,R38,R

40

30153000017 Chip inductors SMD 0805 10uH 0.5A 6 L4,L11,L13,L14,L10,L130


40203000038 Zener diode SMD 3.3V DO-213AA 1/2W 1 D41A





20123000008 chip capacitor SMD 104/100V 0603 X7R ±10% TDK 3 C6,C27,C10

10103000761 chip resistor SMD,8.2K ,1/8W-0805,±1%, 1 RT1

GTO-751EZ

13



capacitor

DIP 33uF/50V ± 20% 6.3 * 11MM 105

feet away from the 5MM Tape1 C116


capacitor

DIP 2.2uF/50V ± 20% 5 * 11 105 ° C

spacing of 5mm braid low leakage

orange

1 C152


capacitor

DIP 10uF/50V ±20% 5*7 105

5mm The DIP

10uF/50V ± 20% 5 * 7 105 feet away

from 5mm knitting belt black

6C82,C140,C141,C142,C1

43,C83


capacitor

DIP, 330uF/25V, 8 * 12, ± 20%, 105

feet away from 5MM braid black1 C150

1.10103E+11 slide switchSMD,9.1*3.5*3.6,2P2T,SS-2204S-HH1

handle length2.0mm,1 SW10

1.70103E+11 Wire plus terminal

2PIN L = 250MM red and white 2.54MM

2468 # 26AWG a female terminal the

other end skinned Baptist

1

21103000007High-voltage

capacitorsDIP 222/1KV ±20% blue 1 C123A

1.10603E+11 Temperature switch

DIP, KSD301, normally open type / 80

degrees, two fixed feet to 180 degrees

terminal

1

JD0101000069 Nine tooth washer6.9 * 3.2 * 0.8MM electric white M3

outside chrysanthemum meson2

JD0201000035 Ceramic chip 17 * 12 * 1.0MM white 9

JD0201000039 Mica 19 * 13 * 0.1MM 2

JD0201000093 Pakistan fast paper 48 * 20 * 0.5-sided prepare plastic 2

JD0201000298 Mica Mica, natural 45 * 18 * 0.1mm 2

GD0301000154 Layering Electrolytic plate, T = 1.5MM 3

HDA030320007 Electrolytic plate 1220 * 1220 * 1.5MM 1

GD0301000160 L layering 22Electrolytic plate, 22 * 23 * 1.5MM,

material,4

HDA030320007 Electrolytic plate 1220 * 1220 * 1.5MM 1

LP0902000008 Glue ES 601B silicone neutral 300ml / bottle 1

LS0101000046 Screws. PM3, * 6 (black zinc plating) the SWC 6 PCB ,.,.,.,.,.

LS0101000157 ScrewTM, 3 * 10, mechanical teeth, black zinc

plating, hard10

SR0101000024 The left side of heatAluminum plate, T = 4MM the GTO-

751EZ, true color, punching tapping1

HDA040820002 Aluminum 1220 * 2440 * 4.0mm, aluminum 1

SR0101000025Right side of the

heat

Aluminum plate, T = 4MM the GTO-

751EZ, true color, punching tapping1

HDA040820002 Aluminum 1220 * 2440 * 4.0mm, aluminum 1

TG0301000040 Heat shrink tubing 5 * 15MM Black 2


capacitor

DIP, 47uF/16V,, 5 * 11, The Promise, ±

20%, 105 ° C1 C69


capacitance

DIP, 103/250V, feet away from the 5MM

braid style, ± 5%, brown2 C137,C106

88FA03200194PCBA semi-finished

products

GTO-751EZ, pre-board DIP processing

test1

10703000232 Potentiometer

DIP, B20K , ± 10%, Single Unit, L12,

semi-circular handle, horizontal, with

stand

2 VR2,VR3

GTO-751EZ

14


10703000233 PotentiometerDIP, C50K , ± 10%, double, L12, semi-

circular handle, horizontal1 VR1

80513000007 Thermistor-PTC

DIP,PTC,200-300 ,300-

500 ,P=5.0 DIP, the PTC, 200-

300 ,300-500 packaged separately,

P = 5.0

1 RQ1


products

GTO-751EZ, pre-board AI processing

outsourcing.1


capacitor

DIP 10uF/50V ± 20% 5 * 11 105 feet

away from the 5MM knitting belt black5 C32,C33,C1,C2,C3

50403000019 FETDIP MPF102 type N-channel TO-92

Tape1 Q1

50403000021 FET DIP 2SK117BL TO-92 Tape-style 1 Q37

20743000066 MET capacitanceDIP 393/100V ± 5% braid feet away

from the 5mm1 C25


productsGTO-751EZ, pre-board, SMD outward 1


10103000014 chip resistor SMD 100 1/10W ±1% 0603 3 R3,R4,R35M

10103000017 chip resistor SMD 1K 1/10W ±1% 0603 5 R8,R9,R19,R32,R43

10103000022 chip resistor SMD 10K 1/10W ±1% 0603 8R5,R7,R29,R30,R41,R42

,R44,R47

10103000024 chip resistor SMD 100K 1/10W ±1% 0603 3 R24,R33,R43M

10103000026 chip resistor SMD 1M 1/10W ±1% 0603 1 R45






10103000198 chip resistor SMD 330 1/10W ±1% 0603 5 R21,R22,R38,R39,R23M




10103000265 chip resistor SMD 4.7K 1/10W ±1% 0603 4 R13,R14,R15,R16


10103000291 chip resistor SMD 5.1K 1/10W ±1% 0603 2 R34,R46



20113000008 chip capacitor SMD 101/50V 0603 NPO ±5% 7C26,C31,C18,C19,C21,C

22,C23

20123000007 chip capacitor SMD 104/50V 0603 X7R ±10% 7C4,C5,C12,C15,C16,C17

,C27

20113000051 chip capacitor SMD 47pF/50V 0603 NPO ±5% 1 C20

30153000017 Chip inductors SMD 0805 10uH 0.5A 1 L1

40103000020 diode SMD 1N4148 DO-213AA 6 D1,D2,D3,D4,D5,D2M

50103000038 Transistor SMD MMBT5401 PNP SOT-23 1 Q3

50203000060 Transistor SMD MMBT5551 NPN SOT-23 1 Q2

60103000647 ICSMD,ET62429M,SOP8,brand ( )

,1 U8

60103000096 IC SMD K1A78L05F SOT-89 KEC 1 U1

60103000698 IC SMD,SN8P2751P8AD,SO-8 1 U7

GTO-751EZ

15


23FA03000197 PCB PCB

GTO1001EZ, double, puzzle a fight 5,

120 * 35 * 1.6mm FR-4, REV: T3-01,

two-sided green oil, antioxidant

treatment

1

60103000380 IC SMD TL072 SO-8 6 U3,U4,U5,U6,U2,U9


20743000048 MET capacitanceDIP 224/63V ± 5% yellow braid feet

away from 5MM2 C30,C29

20743000008 MET capacitanceDIP 104/100V ± 5% yellow feet away

from the 5MM Tape2 C24,C35

20743000044 MET capacitanceDIP 223/100V ± 5% braid feet away

from the 5MM1 C34

ZA0601000002 PCB left bracket Electrolytic plate, T = 1.0MM 1

HDA030220008 Electrolytic plate1220 * 1220 * 1.0mm electrolytic plate

(with membrane)1

ZA0601000003 PCB right bracket Electrolytic plate, T = 1.0MM 1

HDA030220008 Electrolytic plate1220 * 1220 * 1.0mm electrolytic plate

(with membrane)1

1.21103E+11 socketDIP,11PIN ,2.54mm, DIP, 11PIN

DIP, 2.54mm,1 CN1

LS0101000235 Screw BM3 * 4 black zinc plating 2

88LE03200198PCBA semi-finished

products

GTO-751EZ, light board, DIP processing

test1

1.21103E+11 socketDIP, 3PIN, 2.54MM, curved foot 90

degrees,1 J2S

88LE03000198PCBA semi-finished

productsGTO-751EZ, light board, SMD outward 1

23LE03000061 PCB PCB

GTO 501EZ, double-layer, 70 * 18 *

1.6mm, FR-4, of EVR: T2-01, two-sided

green oil, anti-oxidation treatment

1

10103000024 chip resistor SMD 100K 1/10W ±1% 0603 1 R13A

20123000007 chip capacitor SMD 104/50V 0603 X7R ±10% 1 C2A

20123000059 chip capacitor SMD 104/50V 0805 X7R ±10% 1 C1A


R5A,R5B,R6A,R9A,R10A

,R11A,R17A,R18A,R19A,

R31A

40103000020 diode SMD 1N4148 DO-213AA 4 D1A,D2A,D10A,D11A

10103000126 Chip resistors SMD 2.2K 1/10W ±1% 0603 2 R14A,R15A

10103000113 chip resistor SMD 20K 1/10W ±1% 0603 2 R2A,R4A

10103000182 chip resistor SMD 30.1K 1/10W ±1% 0603 2 R1A,R7A

10103000017 chip resistor SMD 1K 1/10W ±1% 0603 2 R12A,R16A

50203000060 Transistor SMD MMBT5551 NPN SOT-23 3 Q1A,Q2A,Q3A

10103000374 chip resistor SMD 825 1/10W ±1% 0603 1 R3A

60103000275 IC SMD LM393M SOP-8 ST 1 U9

40903000108 LED SMD,red bright, 0603 , 1 LED1

40903000089 LEDLED 0603, SMD, green 35mcd 2.0V

20mA 572nm LED 06031 LED3

40903000109 LED SMD, Orange,0603, 1 LED2

10103000747 chip resistor SMD,1.3M ,1/10W-0603,±1%, 1 R30A

10103000340 chip resistor SMD 680 1/10W ±1% 0603 1 R8A

BG0101000074 Light pipe PC, the cold gray 10C, 1

PTPC02000013 Plastic materials PC-1225Y (transparent material) 2

LS0101000046 Screws. PM3, * 6 (black zinc plating) the SWC 8

GTO-751EZ

16


LS0201000241 Screw BT3 * 10 is plated with zinc and hard 3

LS0101000066 ScrewPM3 * 4 \ black zinc plating \ Hard \

resistance fall.2

LS0101000227 Screw BM2.6 * 5MM plated colorful 2 LEDPCB1,LEDPCB2

SR0201100033 heatsink

Aluminum alloy, the ADC-12, the GTO-

751EZ, drilling and tapping the paint

black textured, high-gloss screen

printing,

1

SR0201000033 heatsinkAluminum alloy, the GTO, the ADC-12-

751EZ, drilling and tapping.1

HDA060120001 Aluminum rod ADC-12 aluminum alloy ingots 2138

VSA000000915 PaintBlack textured paint, CA-6551/CH-

KQ9854/F-24760.07

MK0301100033 left side coverAluminum, aluminum alloy ADC-12 die

casting, paint black textured1

MK0301000033 left side cover Aluminum material, 1



KQ9854/F-24760.05

MK0301100034 right side coverAluminum, aluminum alloy ADC-12 die

casting, paint black textured1

MK0301000034 right side cover Aluminum material, 1



KQ9854/F-24760.05

MK0201200283 The front panelCold-rolled plates, T = 0.1MM the GTO-

751EZ, paint black plain, screen printing,1

MK0201000283 front boardCold-rolled plates, T = 0.1MMGTO-

1001EZ, material,1

HDA010220012 Cold-rolled plates A3 board 222 * 1220 * 1.0 1

VSA000000569 Paint Black, paint, CH-KQ9711/F-03746, 0.05

HG0201200151 Rear boardCold-rolled plates, T = 1.0MM the GTO-

751EZ, paint black plain, screen printing,1

HG0201000151 rear boardCold-rolled plates, T = 1.0MMGTO-

501EZ, material,1

HDA010220012 Cold-rolled plates A3 board 222 * 1220 * 1.0 1


XG0201100135 Bottom boardCold-rolled plates, T = 1.0 GTO804EZ,

paint black plain silk screen1

XG0201000135 Bottom boardCold-rolled plates, T-= 1.0 GTO804EZ

to, material,1

HDA010220020 Cold-rolled plates 306 * 1250 * 1.0MM 1


AJ0111100563 Knob markedABS + PC, black injector silver drops of

orange punctuation.3

AJ0111000563 Knob marked ABS + PC, Black, 1

PTABS2000050 Plastic materialsABS + PC 8.02 thousand (cold material)

black type B1

VSA000000319 Paint Silver, paint, 872082851/M3882 0.5

AJ0111000562 Knob ABS + PC, black etching 3

PTABS2000050 Plastic materialsABS + PC 8.02 thousand (cold material)

black type B2.5

GTO-751EZ

17


LS0101000157 ScrewTM, 3 * 10, mechanical teeth, black zinc

plating, hard12

JD0101000022 Spring washer 5.6 * 3 * 1.3MM Black 8

CH0102000313 color Box

GTO751 Box L370 * W305 * H121MM,

A3, high strength, mounted 350 grams

gray copper, Harman, four-color,

specifically, GTO751

1

WX0302000264 Carton

HARMAN, K = K, 388 * 258 * 325MM,

the GTO751 special wheat head,

HARMAN

1

BZ0102000142 Pearl film bag 450 * 320 * 0.5MM to play two holes. 1

BZ0202000184 EPE left L300 * W109 * H75MM, EPE, 1

2.21903E+11 CD disc

CD disc, the GTO series, = 120mm,

within engraved Harman test discs,

(Fuxiao PP bag)

1

1.21103E+11 RCA terminalsDIP, 1PIN, the RCA wiring terminals

nickel plated male2

BZ0302000007 PE maneuver bags 90 * 60 * 0.06MM printed green standard 1

BZ0202000186 EPE right L300 * W109 * H75MM, EPE, 1

TZ0302000610Bar code serial

number stickersBond paper, 50 * 15mm, 1

TZ0302000593Serial number

stickersBond paper, 30 * 5MM 2

TZ0302000609 Bar code stickerBond paper, 42 * 70MM white black

printing.3

TZ0302000602Outside the box

barcode stickers

110 * 80MM bond paper black and

white, waterproof anti-spill fine1

LP0202000004 DrierSILICA the GEL 5g / pack of 64-* 49MM,

white non-woven fabrics printed in blue1

LP0302000015 Warranty card JBL warranty card 1

BZ0302000004 PE bags

350 * 230 * the 0.06MM printed red

warning label and the Green Mark to

play with two holes

1

JD0401000341 Rubber pad

10*10*5.0MM 10 * 10 * 5.0MM black

rubber high temperature hardness of 70

degrees, prepare single-sided 3M

adhesive tape 10 * 10 * 5.0MM

5

BZ0502000001 Disc bags

= 120MM disc special 250g art paper

color printing of photoresist to update

the print file, the GTO series

1

LP0102000549 Instructions

\280 * 217mm, front and back covers

105g double copper paper,

monochrome, inside pages sided offset

paper 80g! ,1001EZ / 751EZ

/501EZ,Harman, 1001EZ / 751EZ

/ 501EZ, Harman, the amount of

production with

1

GTO-751EZ

18

GTO-751EZ

19

GTO-751EZ

20

INPUT LEVEL

50mV-1.5V

crossover

1

2

SP

SP+

SP-

block

Class D

power supply

1

2

3

GROUND

REM

+12V

bass boost

40Hz-200Hz 12dB/ oct 45Hz 0-12dB

23

1

4

A

LO

Hi

Hi2

23

1

4

A

LO

Hi

Hi2

1

1G

2

A

L input

R input

switch

switch

REMOTE

LEVEL CONTROL

1

2

3

4

to REMOTE

simple LED(s)

Orange

Red

green

power(green)/protection(Red) LED

A2

A1

A6

A3 A4A5 A7

A9

A8

SD

G

SD

G

DriverIntegrator

comparator

LP pass

GTO-751EZ

21

C44

104

8

7

6

54

3

2

1

U9

7W04

C116

33

U/2

5V

123456789

10111213141516

U112010

12

5

3 4

U5AO4G

TRIG2

Q3

R4

CVolt5

THR6

DIS7

VC

C8

GN

D1 U15

555

D17M4148

R98100R

C32104

+5V

R100

100RC34104

R1110K

-5V

C128M

102

R4410K

C83

10U/25V

C85472

R8

47K

C84

472

D174148

MUTE1

R4610K

Q23M

5551

R4710K

D39M

1N4148

R8M4.7K

+5VR103

151 C31104 Q9

5401

R105

100

R106

4.7K

R33100K

C118225/16V

C55102

D44148

R651K

R1074.7K

D5

4148

D7 4148

D8 4148

R20 2.2K

R19 2.2K

C120

100

C121

100

COM

COM

D515.1V

C36104

C33104

COM

C119225/16V R132 680R

R133 680R

C37

104R

136

10RR

137

10R

R138 10R

R13910R

-VCC+12V D52MUR102

R146

12K/2W

COM

C38

10

4

C112

10

0U

/25

V

R109

4.7K

C39

104

C111100U/25V

R1084.7K

SD

D114148

R14010R

D134148

R14410R

D144148

R14510R

R212.2K

R222.2k

M1238N20D

M1038N20D

M938N20D

C122

33

5/2

50

V

C123

22

2/1

KV

R1474.7R

+VCC

-VCC

1 2L5

50MH/45A

R1484.7K/5W

R149

47

0R

/2W

6

57

U4B

JRC4560

2

31

84

U4A

JRC4560

C126

471

R179

0.1

R

R180

0.1

R

R181

0.1

R

R182

0.1

R

PRO L

C12933

5/1

00

V

R7M

47K

C13322

4/1

00

V

C13033

5/1

00

V

C10610

3/2

50

V

D381N4148

C13133

5/1

00

V

11

22

34

45

63

RL1

12V/30A

R150

4.7

R/2

W

D46 1N4148

+15V

+15V

54

6

SW4B

SW2P2T

23

1

SW4A

SW2P2T

RCA-PRO

PRO

R990R

C13233

5/1

00

V

C13522

4/2

50

V

C13610

2/2

50

V

C72

104

R1

20

2.7

K

R151

2.2

K/2

W

PGND

U7TLP181

D55

4007

PRO

1 2

L6A10UH

34 L6B

10UH

+SP1

R11956K

1

2JK4

CN2D

+SP

C134

22

4/1

00

V

D381N4148

PGND

C137

10

3/1

00

V

R118NC

C87

10

0U

/25

V/N

P

R4510K

Q20

5551

Q21

5551

gnd1

+in2

-in3

vee45

6

out7

vcc8

+

-

U10

LM311

R11510K

-VCC+5V

-VCC+5V

R152

47

R/5

W

C115

47

U/1

6V

C148

10

0U

/16

V

D53

MU

R1

02

D54MU

R1

02

R130

30K

R5010K

R177470

D18

4148

+SPR10 12.1K

R17847.5K

+SP1

R1341.5K

R11756K

+SP

D371N4148

R681K

C149

332

R11656K

C86

10

0U

/25

V/N

P

Q18

5551

COM

Q19

5551

R11410K

C124

104/250V

C125

10

4/2

50

V

R647K

+SP1

MUTE

D64148

D16 4148

1

25

4

6

3

NC

NC

U134N35

SUB SIN

R113

220R

-15V

-VCC

R247K

C45

104

R951M

MUTE

R152.2K

+15V

D15

4148

Q17K117

+SP

R3447K

R23

2.2

K

C153

220U/25V

Q24

5551

Q11

5401

R7

47

K

Q225551

MUTE1

R34MNG

D9 4148

R14210R

M1338N20D

D7M5.1V

C123

10

2/1

KV

C69

47U/25V/NP

D23

1N4148

D241N4148

R85

47K

R87

4.7K

R89

2.2KQ22M

5551

Q11M

5401

R10M

47K

R11M

100K

12

R1

15

M1

0K

MUTE2

D784148 1

23

CN3

CON3

R11M

1M

AGND C79104

TP6

TP5TP4

RJ6

NG

RJ5

NG

RJ4

NG

REM1

+15VR129

2K7

L4 10uH

L1010UH

L1110uH

+15V-15V

+VCC-1

SUB SIN

SUB IN

REM1

-VCC-1

11

TP71

1TP8

11

TP91

1TP10

11

TP11

11

TP121

1TP13

11

TP141

1TP15

11

TP065V-1

1234567891011

JP10

11PIN

11

TP04

123456

JK5

HEADER 6

TP81TP82

R18M100

R17M47K

Q04

5401

Q06

5551

R19M4.7K

R20M

4.7KR21M47K

R22M4.7K

RJ8

NG

RJ9

NG

L1310UH

+5V-1

L14

10UH

C10104

C27104

MT2

I3

G2

O1

+15V +5V-1

C125

22

2/1

KV

R1754.7R

COM

RT18.2K

L13010UH

GTO-751EZ

22

32

1

4SW1A

SK14D01

76

5

8

SW1B

SK43D01

R16330K

C56102

2

31

84

U12A

JRC4560

R165

47.5K

R168

47

.5K

R166

47.5K

R170 47.5K

R161120R/2W

R159

110K

R157

110K

R154

0R

R156 0R

C140

10uF/25V

C141

10uF/25V

C139100uF/35V C144

47P

+15V

-15V

21

RCA1A

R66 56K

C40 104

FL

to 12/12C146 100P

HI 1

HI 2

Line

HI 1

HI 2

Line

SX1 NG

SX2 NG

RCA-PRO

1514

13

16

SW1D

SK14D01

1110

9

12

SW1C

SK43D01

R16430K

C57102

6

57

U12B

JRC4560

R173

47.5K

R16947.5K

R167

47.5K

R174

47.5K

R162120R/2W

R160110K

R158110K

R155 0R

R153 0R

C143

10uF/25V

C142

10uF/25V

C138

100uF

/35V

C14547P

4

3

RCA1B

R67 56K

C41 104

FR

C147 100P

HI 1

HI 2

Line

HI 1

HI 2

Line

SX4 NG

SX3 NG

RCA-PRO

R172

4.7K

R171

4.7K

SUB IN

A1

A2

A3

A4

5

L3C L-4

7L3D

L-4

1

L3A

L-43

L3B

L-4

R54

10K

R5510K

C150

330U/16V

+1/2VD

R1104.7K

+12V.D

Q23

5551

Q12

5401

R48

10K

R947K

R49

2.2K

R5210K

D39

1N4148

R53

10K

+15V

U14

TLP181

D40M1N4148

MUTE1

MUTE

R185

10K

R186

10K

6

57

U16B

072

R38

220K

R36

220K

C48 104

C49104

R39

220K

R40 220K

C128471

C1544742

31

84 U16A

072R187

13K

R188 560K

C156 101

R1351.5K

+1/2VD

A1

A2

C155474

D421N4148

D43

1N4148

R70

1K

R1247K

C152

2.2U/25VR60

10K

Q27

5551

R242.2K

R19115K Q14

5401

R13118K

C158

22

0U

/16

V R1922M7

2

31

84

U17A

LM393

R6110K

R9711K

R1347K

R71

1K

R6210K

C127471

Q28

5551

P+12V-1 QB

R252.2K

Q26

5551

R41100K

C117

100U/16

R183

10K

R184

10K

R37

220K

R35

220K

C46 104

C47

104

A3

A4

P+12V-1

R10110R

C15747U/35V

D44

1N

4148

D45

1N

4148

6

57

U17B

LM393

D40

1N4148

R5647KK

Q13

5401

R5715K

R584.7K

R694.7K

C151

10

6/1

6V

R59

47K

Q25

5551

R190220

P+12V

REM

D41

NG

Q25M5551

D40M

1N4148

P+12V-1

R111

4.7K

23

1

SW10A

SW2P2TP+12V

P+12V-1

Q37MK117

1 2-15V

MUTE2

GTO-751EZ

23

R631K

R64

1K

+1

-2

FE

D3

DT

4

C5

R6

GN

D7

OP

18

+1

6

-1

5

RE

F1

4

CO

N1

3

VC

C1

2

OP

21

1

E2

10

E1

9

TL494CN U6 TL494

+12V.D

Q2

5551

R4218K

C1

104C3104

R142.2K

R284.7K

C4104 R29

82K

R147K

R2612K

Q65551

Q35551

Q10

5401

Q75401

Q1

5401 DZ1

3.9V

C20100uF/25V

D14148

REM

R9611K

R1025.11K

C15104

R2715K

Q8

5401

R547K

R162.2K

C14

104

C16104D34148

C13104

R30100K

R104

18K

C17104

C23102

C18

104

R347K

R447K

LED1RED

GR

EE

N

R932K2

R942K2

Q4

5551

Q5

5551

C11

104

C12104

R121

100/1W

C90

680P/1KV

C98

22

00

U8

0V

C97

22

00

U/8

0V

C75

104

C107

10

0U

/25

V

C73104

C96

33

0U

/35

V/w

C95

33

0U

/35

V/w

1

2

3JK2

POWER

R722.2K

R73

2.2K

PGND

REM

+12V

C62

W3

30

0/2

5V

SD

G

M2

T460

R7547R

C88472

R82

22R/ 1/2W

SD

G

M6

T460

R7947R

C89472

R83

22R/ 1/2W

C5

104

C60

224

P+12V

C25

105/63V

R127

6.8

K/2

W

-15V

C19104

C103104/250V

-VCC+12V

D27 RS1G

D26 RS1G

D28 RS1G

D29RS1G

C102

104/250V

C101

104/250V

COMD20RS1D

D21RS1D

R84

22R

R122

22R

C66

681/100V

C65681/100V

C92102/500V

C93102/500V

C91102/500V

C94102/500V

ESD1

15KV

C26

104

C50

102D19

6A10

C58

103

C105

103/250V

C104

103/250V

+VCC

-VCC

C51 102

C52 102

C53 102

C54 102

C27 104

C28 104

F1B 30A

F1A 30A

C63

W3

30

0/2

5V

SD

G

M3

T460

SD

G

M7

T460

R7647R

R8047R

SD

G

M4

T460

R7747R

SD

G

M8

T460

R8147R

C99

22

00

U/8

0V

C100

22

00

U/8

0V

D22

1N4148

D251N4148

R882.7K

R86

3.3K

C70104

-VCC

R9233K

Q16

T2222

SD

1 2

L1A60UH

3 4

L1B

60UH

1 2L2

10R/100M

Vin1

GN

D2

Vout3

U1 L7812

D31 4007

C68

10

0u

F/3

5V

C29

104

C21

10

0u

F/2

5V

C30

104

C8110uF/25V

C82

10uF/25V

Vin1

GN

D2

Vout3

U3 L7815

Vout3

GN

D2

Vin1

U8 L7915

D32 4007

D334007

C108

10

0U

/25

V

C74104

C76104

+15V

D48

MUR1640C

D49MUR1640CT

D47MUR1640C

D50

MUR1640CT

R124

6.8

K/2

W

MT1MT

MT2MT

MT3MT

MT4MT

C6104

C7NG

C8NG

C9NG

MT5MT

C59

10uF/50V/NP

R4310K

P+12V

R90

470/1W

R91

470/1W

C109

10

0U

/25

V

C110

10

0U

/25

V

D355.6V

D365.6V

C77

104

C71104

+5V

-5V

D24148

AC1

1

2JK3

CN2D

PGND

PRO

R112

220R

PRO L

QB

R3275K

R3175K

R176.04K

R186.04K

+VCC-1

-VCC-1

+12V.D

+12V.D

C2

104

C22102

C24103

2

4

9

8

6

1

3

7

10

14

5

11

12

13

T1

4.5:25.5:7.5:7.5:7.5

J290MM

J3

J90MM

-VCC

NG

C64

NG

MT2

GTO-751EZ

24

12

R3A

82

5

+15V2

31

84 U9A

LM393

+15V

1 2R18A

10K

12

R16A1K

AK

LED1

RED HI

12

R5A10K

12

R8A

68

0

6

57

U9B

LM393

1 2

R10A10K

12

R12A1K

AK

LED2

orange LOW

12

R6A10K

A K

D1A1N4148

A K

D2A1N4148

12

R13A100K

12

C2A104

12

R4A20K

12

R1A30.1K

12

R15A2.2K

AK

LED3green

+15V

12

R19A10K

1 2

R14A2.2K

B

CE

Q3A5551

12

R7A30.1K

12

R9A10K

+15V

1 2R2A

20K

PO

12

R17A10K

B

CE

Q1A5551

+15V

12

R11A10K

B

CE

Q2A5551

+15V

12

C1A104

SUB SP+

+15V

SUB SP+

11

22

33

J2S

CON3

1 2R30A

1.3M

1 2R31A

10K

AKD10A

1N4148

A KD11A

1N4148

12

R5B

10

K

GTO-751EZ

25

12

1 2

121 2

1 2

1 2

1 2

D

G

S

1 2

12

1 21

12

2

11

22

1 2

1 2

12

11

22

11

22 1

21

212 12

1 2

1 2

12

12

33

11

22

22

11

33

1 2

12

1 2

1 2

12

12

1 2

12

12

1 2

12

121

2

I3

G2

O1

12

12

45

A1

A3

A2 B1

B3

B2

1

2

3

BOT2

TOP1 1 2

12

12

1 2

1 2

12

12

121 2

R-IN1

R-OUT2

GND3

DATA4

CLOCK5

VCC6

L-OUT7

L-IN8

VDD1

P02

P13

P24

P35

P46

P57

VSS8

12

12

12

11

22

12

11

22

Rem

66

55

77

44

88

+15V

-15V

1

2

3

22

33

11

44

88

66

55

77

66

55

77

22

33

11

22

33

11

66

55

77

66

55

77

12

22

33

11

44

88

44

88 1

2

22

33

11

+15V

-15V

+15V

-15V

11

22

+VCC1 -VCC1

1 2

1 2

1 2

1 2

22

33

11

12 12

12

12

66

55

77

1 2

1 2

1 21 2

44

88

1 2

1 2

1 2

11

22

12

44

88

12

12

12

Q37NG

12

1 2-15V

MUTE2

+15V-15V

+VCC-1

SUB SIN

SUB IN

REM1

-VCC-1

11

TP71

1TP8

11

TP91

1TP10

11

TP11

11

TP121

1TP13

11

TP141

1TP15

11

TP065V-1

1234567891011

JP10

11PIN

11

TP04

1 2

AA

KK

D2M

1N4148

MT2

5V-1

12

GTO-751EZ

26

Date post:	06-Apr-2022
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GTO-751EZ - spareparts.kenwood.it

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