Harman JBL GTO-751EZ User manual

Service Manual
GTO-751EZ
subwoofer 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 GROUND
The 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 Connectors
GTO 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 Connection
Connect 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 Connection
1. 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 CONNECTION
Connect 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 SWITCH
No 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 BOOST
The 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

BZ0302000007
WX0302000264
CH0102000313
LP0202000004
LP0102000611
LP0302000015
BZ0502000001
221903000014
121103000099
BZ0202000186
BZ0202000184
BZ0102000142
AGTO751M0002
TZ0302000593
TZ0302000609
TZ0302000610
BZ0302000004
TZ0302000602
GTO-751EZ Packaging exploded view
Foam bag
1
2
3
4
9
10
11
13
14
16
17
18
Foam left
Foam right
Carton
Giftbox
W
ranar ty
Manual
12
PE Bag
mainframe
EV0022-00001
15 Serial labels RCA terminal and drier
5
barcode label
EV0022-00001
Carton barcode label
Barcode labels 42 * 70mm per dosage 1 PCS,
each box stick 4 PCS are the same.
Carton barcode labels 110 * 80mm per dosage 1 PCS,
each box stick 2 PCS are the same.
barcode label
8CD Bag
CD
7
NO.
1
2
3
4
5
6
7
8
9
10
11
13
14
15
16
17
12
18
PART NO.
PART NAME
Mainframe
Foam Left
RCA terminal
CD
CD Bag
Warranty card
Manual
Drier
Foam Right
Giftbox
Carton
PE Bag
Foam bag
Barcode labels
Serial labels
Barcode labels
PE Bag
Carton barcode label
QTY.
1/1
1/1
1/1
1/1
2/1
1/1
1/1
1/1
1/1
1/1
1/1
1/1
1/1
½
2/1
1/1
2/1
1/1
REMARK
Casing mainframe
Each box stick 2 PCS
30*5MM
50*15MM
42*70MM
110*80MM
Each box stick 1 PCS
Casing RCA terminal
6PE Bag
Casing CD
Casing manual and warranty
Note:Asia and Europe without warranty card!
751
22
22
GTO-751EZ
7

GTO-751EZ
8

p/n name spec qty position
AGTO751M0002 GTO-751EZ Harman-US,GTO-751EZ, 1
88AM03200264 PCBA semi-finished
products
GTO-751EZ,AMP board,DIP process
test 1
1.20203E+11 RCA jacks AV2,-8.4-13AN (WR) 2 holes on the
white the red 4-pin 1 RCA1
1.21103E+11 Phone jack 6PIN black 90 1 JK5
10803000011 Manganin
resistance
DIP 10 milliohms ± 1% of Manganese
Bronze to resistance Ɏ1.5 feet away
from the H is for 10.5MM 16.5MM
3 R180,R181,R182
30503000001 Common-mode
inductance
Three-phase inductance ĭ28 * 12mm
(ĭ1.0 * 6P) * 2 +1.0 * 1P vertical core
K5A 13uH 7.5uH
1 L1P
20733000023 Metal membrane
capacitance
DIP 104/250V ± 5% brown braid feet
away from 5mm 4 C101,C102,C103,C124
20733000024 Metal membrane
capacitance
DIP 105/63V ± 5 feet away from the
5MM knitting belt brown MAX: 10.5MM *
10.5MM * 6.0MM
1 C25
30603000036 Common-mode
inductance
DIP 35uH core 17.5 * 9.5 * 20mm ĭ0.5 *
8P * 6TS vertical 4-pin 1L6
10403000110 Metal oxide film
resistors DIP 2W 120ȍ± 5% braid 2 R161,R162
2.21103E+11 Relay Manufacturers Model: YL-224-C DC12V
30A transformational 1 RL1
10403000046 Metal oxide film
resistors DIP 2W 2.2K ± 5% braid 1 R151
20733000027 Metal membrane
capacitance
DIP 224/100V ± 5% brown braid pitch
5mm miniaturization 3C133㧘C135㧘C134
20513000204 Electrolytic
capacitor
DIP 330uF/35V ± 20% Ɏ8 * 16MM 105
Black 3 C95,C96,C68
20733000018 Metal membrane
capacitance
DIP 335/100V ± 10% 105 ° C brown feet
away from 20.5mm 4 C129,C130,C131,C132
20733000019 Metal membrane
capacitance
DIP 335/250V ± 10% 105 ° C brown feet
away from the 27mm 1 C122
10403000055 Metal oxide film
resistors DIP 2W 4.7ȍ± 5% braid 1 R150
1.20103E+11 Fuseholder The DIP 2PIN combination to use BXS2-
09 1F1
10403000114 Metal oxide film
resistors DIP, 43Kȍ, 2W, braid type, ± 1%, 1 R146
10403000096 Metal oxide film
resistors DIP 2W 470ȍ± 5% horizontal tall 10mm 1 R149
10503000018 Cement Resistor DIP 5W 47ȍ± 5% (vertical) two feet 1 R152
50703000011 Optical coupling 4N35 DIP6 1 U13
1.40203E+11 Fuse DIP 40A/32V high temperature UL
certification Littelfuse Blade 2
10403000120 Metal oxide film
resistors DIP, 6.8Kȍ, 2W, braid type, ± 5%, 2 R124,R127
40103000050 Rectifier diode DIP 6A10 1000V brand㧦ᐔᵗ 1 D19
1.21103E+11 socket DIP,11PIN⋥ឯ,2.54mm, DIP, 11PIN
DIP, 2.54mm, 1 JP10
GTO-751EZ
9

p/n name spec qty position
1.70503E+11 Shielded cable
1533 #28/㧔1C+S㧕㧖㧞ዳ⭁优႕ۥ+UL
2468
#26/7P任ػඈ,11PIN,2.54MM,L=100MM
,෺㢎䬈XH┵ሶ, 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 Blocks DIP, 2PIN, JSZ2-25, black plastic, nickel
-
plated folding feet 1 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
30503000004 Common-mode
inductance
Four-phase inductance ĭ0.65 * 4P
vertical core K6A ĭ13 * 6 30uH 1L3
60203000097 IC DIP,CJ7812,TO-220,㊄ኽ 叿䶣,1U1
60203000100 IC DIP, CJ7815, TO-220, gold seal long
power 1U3
60203000099 IC DIP, CJ7915, TO-220, gold seal long
power 1U8
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 switch DIP,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 * 12mm 1 SW1S
50403000031 FET DIP AOT460 85A 60V TO-220 N-
CHANNEL 6 M2,M3,M4,M6,M7,M8
20513000436 Electrolytic
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+11 High-frequency
toroid transformer Core 47 * 15 4.5T: 22.5T: 7.5T: 7.5T 1 T1
10503000039 Cement Resistor
DIP, 4.7Kȍ, 5W, ± 5% (vertical) two feet
away from 5mm, length 13 * W * H
25mm
1 R148
1.70903E+11 Copper jumper DIPij2.6MM, L = 80MM, high 28MM feet
on the tin 2 J2,J3
50403000005 FET DIP IRFB 38N20D TO-220 4 M9,M10,M12,M13
20513000438 Electrolytic
capacitor
DIP, 2200uF100V, 30 * 27 feet away
from the 10mm, ± 20%, 105 ° C 4 C97,C98,C99,C100
1.30213E+11 Socket DIP Pitch 2.5MM 2PIN-line 1 JK3
GTO-751EZ
10

p/n name spec qty position
30123000118 Power inductors
DIP, 55UH, 45A, feet away from the
51mm two-pin yellow paper wrapped
around pin 23 mm tinned
1L5
88AM03100264 PCBA semi-finished
products
GTO-751EZ, amplifier board, AI
processing outsourcing. 1
20513000083 Electrolytic
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
20713000030 Polyester
capacitors
DIP the 102/250V compiled belt feet
away from 5mm error of ± 20% 1 C136
20513000156 Electrolytic
capacitor
DIP 220uF/16V ± 20% 6.3 * 11 105 feet
away from 5mm braid 1 C158
20523000008 Electrolytic
capacitor
DIP 10uF/50V ± 20% 5 * 11 105 feet
away from 5mm Promise of braid style 1 C59
20513000262 Electrolytic
capacitor
DIP 47uF/25V ± 20% 5 * 7 105 ° C braid
pitch 5mm black 2 C115,C157
50403000021 FET DIP 2SK117BL TO-92 Tape-style 2 Q37,Q37M
20523000010 Electrolytic
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 PCBAඨᚑຠ GTO-751EZ,ഞ᡼᧼,SMDᄖ䦡,內䣈,1
10103000008 chip resistor SMD 0ȍ1/10W ±1% 0603 6 R153,R154,R155,R156,R
99㧘R50M
10103000067 chip resistor SMD 1.5Kȍ1/10W ±1% 0603 1 R135
10103000420 chip resistor SMD 1.5Kȍ1/8W ±5% 0805 1 R134
10103000401 chip resistor SMD 100ȍ1/8W ±1% 0805 3 R105,R98,R100
10103000024 chip resistor SMD 100Kȍ1/10W ±1% 0603 6 R11M,R30,R34,R41,R19
5,R172M
10103000406 chip resistor SMD 100Kȍ1/8W ±5% 0805 1 R33
20113000008 chip capacitor SMD 101/50V 0603 NPO ±5% 3 C146,C147,C156
10103000014 chip resistor SMD 100ȍ1/10W ±1% 0603 2 R101,R18M
20203000029 Electrolytic
capacitor SMD 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 10Kȍ1/10W ±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 8 R44,R45,R46,R47,R50,R
114,R115,R11
10103000399 chip resistor SMD 10ȍ1/8W ±1% 0805 8 R136,R137,R138,R139,R
140,R142,R144,R145
10103000036 chip resistor SMD 110Kȍ1/10W ±1% 0603 4 R157,R158,R159,R160
10103000033 chip resistor SMD 11Kȍ1/10W ±1% 0603 2 R96,R97
10103000057 chip resistor SMD 13Kȍ1/10W ±1% 0603 1 R187
10103000069 chip resistor SMD 15Kȍ1/10W ±1% 0603 3 R27,R57,R191
10103000094 chip resistor SMD 18Kȍ1/10W ±1% 0603 2 R42,R131
GTO-751EZ
11

p/n name spec qty position
10103000017 chip resistor SMD 1Kȍ1/10W ±1% 0603 4 R63,R64,R70,R71
10103000403 chip resistor SMD 1Kȍ1/8W ±1% 0805 2 R65,R68
10103000560 chip resistor SMD 10Kȍ1/4W ±5% 1206 1 R43
10103000026 chip resistor SMD 1Mȍ1/10W ±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 2.2Kȍ1/10W ±1% 0603 9 R14,R15,R16,R23,R24,R
25,R89,R93,R94
10103000449 chip resistor SMD 2.2Kȍ1/8W ±5% 0805 6 R19,R20,R22,R21,R72,R
73
10103000461 chip resistor SMD 2.7Kȍ1/8W ±5% 0805 1 R88
60103000023 IC SMD IR2010S SOL-16 1 U11
10103000121 chip resistor SMD 220ȍ1/10W ±1% 0603 2 R190,R112
10103000448 chip resistor SMD 220ȍ1/8W ±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
20133000007 chip capacitor SMD 225/25V 0805 X5R ±10% 2 C118,C119
10103000446 chip resistor SMD 22ȍ1/8W ±1% 0805 2 R84,R122
10103000645 chip resistor SMD 22ȍ1/3W ±5% 1210 2 R82,R83
10103000149 chip resistor SMD 24.3Kȍ1/10W ±1% 0603 1 R104
10103000162 chip resistor SMD 2.7Kȍ1/10W ±1% 0603 1 R129
10103000660 chip resistor SMD 2.7Mȍ1/10W ±1% 0603 1 R192
10103000480 chip resistor SMD 3.3Kȍ1/8W ±1% 0805 1 R86
40203000043 Zener diode SMD 3.9V DO-213AA 0.5W 1 DZ1
10103000188 chip resistor SMD 30Kȍ1/10W ±1% 0603 2 R163,R164
10103000474 chip resistor SMD 30K 1/8W ±1% 0805 1 R130
10103000478 chip resistor SMD 330ȍ1/8W ±5% 0805 1 R103
20123000077 chip capacitor SMD 332/50V 0805 X7R ±10% 1 C149
10103000482 chip resistor SMD 33Kȍ1/8W ±1% 0805 1 R92
10103000265 chip resistor SMD 4.7Kȍ1/10W ±1% 0603 12
R69,R8M,R28,R87,R110,
R111,R171,R172,R189,R
19M,R20M,R22M
10103000505 chip resistor SMD 4.7Kȍ1/8W ±1% 0805 4 R106,R107,R108,R109
10103000624 chip resistor SMD,4.7ȍ,1W-2512,±5%, 2 R147,R175
40103000040 Rectifier diode SMD FM4007 DO-214AC SMD FM4007
DO-214AC 4 D31,D32,D33,D55
10103000272 chip resistor SMD 1/10W 47.5Kȍ±1% 0603 8 R165,R166,R167,R168,R
169,R170,R173,R174
10103000275 chip resistor SMD,47.5Kȍ,1/8W-0805,±1%, 1 R178
10103000663 chip resistor SMD,470ȍ,1/3W-1210,±1%, 2 R90,R91
10103000503 chip resistor SMD 470ȍ1/8W ±5% 0805 1 R120
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
10103000268 chip resistor SMD 47Kȍ1/10W ±1% 0603 15
R1,R3,R4,R5,R7,R8,R9,
R10M,R12,R13,R17M,R2
1M,R23M,R85,R125
10103000507 chip resistor SMD 47Kȍ1/8W ±1% 0805 2 R6,R7M
GTO-751EZ
12

p/n name spec qty position
10103000501 chip resistor SMD 47ȍ1/8W ±5% 0805 6 R75,R76,R77,R79,R80,R
81
10103000278 chip resistor SMD 4.99K 1/10W ±1% 0603 1 R102
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 叿䶣 10 Q1,Q04,Q7,Q8,Q9,Q10,
Q11,Q11M,Q13,Q14
50203000060 Transistor SMD MMBT5551 NPN SOT-23 叿䶣 20
Q2,Q3,Q4,Q5,Q06,Q6,Q
18,Q19,Q20,Q21,Q22,Q2
2M,Q23,Q23M,Q24,Q25,
Q25M,Q26,Q27,Q28
10103000374 chip resistor SMD 825ȍ1/10W ±1% 0603 1 R177
10103000525 chip resistor SMD 56Kȍ1/8W ±1% 0805 3 R116,R117,R119
10103000321 chip resistor SMD 6.04K 1/10W ±1% 0603 2 R17,R18
10103000648 chip resistor SMD,100ȍ,1W-2512,±5%, 1 R121
20123000099 chip capacitor SMD 102/500V 1206 X7R ±10% TDK 5 C90,C91,C92,C93,C94
10103000533 chip resistor SMD 680ȍ1/8W ±5% 0805 2 R132,R133
20123000092 chip capacitor SMD 681/50V 0805 X7R ±10% 2 C65,C66
10103000360 chip resistor SMD 75Kȍ1/10W ±1% 0603 2 R31,R32
60103000461 IC TC7WH04F 1 U9
10103000371 chip resistor SMD 82Kȍ1/10W ±1% 0603 1 R29
60103000421 IC 74AHC1G04 SOT-235 1 U5
60103000235 IC SMD LM311 SOP-8 1 U10
60103000275 IC SMD LM393M SOP-8 ຠ 㧦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 Optocoupler SMD TLP181 SO8 (4 pin)
PHOTOCOUPLER brandTOSHIBA 2 U7,U14
60103000383 IC SMD TL494C SO-16 1 U6
60103000129 IC SMD NE555 SOP-8 ຠ 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% 7 C22,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 PCB GTO751ez,෺䪾,236*164*1.6mm,FR-
4,REV㧦T2-01,෺㕙佘Δݼ௜֏㢊෻ 1
10103000130 chip resistor SMD 220Kȍ1/10W ±1% 0603 6 R39,R35,R36,R37,R38,R
40
30153000017 Chip inductors SMD 0805 10uH 0.5A 6 L4,L11,L13,L14,L10,L130
10103000416 chip resistor SMD 12.1K 1/8W ±1% 0805 1 R10
40203000038 Zener diode SMD 3.3V DO-213AA 1/2W 1 D41A
10103000046 chip resistor SMD 12Kȍ1/10W ±1% 0603 1 R26
20123000088 chip capacitor SMD 474/25V 0805 X7R ±10% 2 C154,C155
10103000313 chip resistor SMD 560Kȍ1/10W ±5% 0603 1 R188
10103000312 chip resistor SMD 56Kȍ1/10W ±1% 0603 2 R66,R67
20123000008 chip capacitor SMD 104/100V 0603 X7R ±10% TDK 3 C6,C27,C10
10103000761 chip resistor SMD,8.2Kȍ,1/8W-0805,±1%, 1 RT1
GTO-751EZ
13

p/n name spec qty position
20513000197 Electrolytic
capacitor
DIP 33uF/50V ± 20% 6.3 * 11MM 105 
feet away from the 5MM Tape 1 C116
20513000131 Electrolytic
capacitor
DIP 2.2uF/50V ± 20% 5 * 11 105 ° C
spacing of 5mm braid low leakage
orange
1 C152
20513000058 Electrolytic
capacitor
DIP 10uF/50V ±20% 5*7 105
⣉〒5mm 佯䬈ڤ႕ۥ The DIP
10uF/50V ± 20% 5 * 7 105 feet away
from 5mm knitting belt black
6C82,C140,C141,C142,C1
43,C83
20513000200 Electrolytic
capacitor
DIP, 330uF/25V, 8 * 12, ± 20%, 105 
feet away from 5MM braid black 1 C150
1.10103E+11 slide switch SMD,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
21103000007 High-voltage
capacitors DIP 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 washer ij6.9 * ij3.2 * 0.8MM electric white M3
outside chrysanthemum meson 2
JD0201000035 Ceramic chip 17 * 12 * 1.0MM white 9
JD0201000039 Mica 19 * 13 * 0.1MM 2
JD0201000093 Pakistan fast paper ij48 * ij20 * 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 22 Electrolytic 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 厇׌PCBᢔ䴴㦕,.,.,.,.,.
LS0101000157 Screw TM, 3 * 10, mechanical teeth, black zinc
plating, hard 10
SR0101000024 The left side of heat Aluminum plate, T = 4MM the GTO-
751EZ, true color, punching tapping 1
HDA040820002 Aluminum 1220 * 2440 * 4.0mm, aluminum 1
SR0101000025 Right side of the
heat
Aluminum plate, T = 4MM the GTO-
751EZ, true color, punching tapping 1
HDA040820002 Aluminum 1220 * 2440 * 4.0mm, aluminum 1
TG0301000040 Heat shrink tubing ij5 * 15MM Black 2
20523000024 Electrolytic
capacitor
DIP, 47uF/16V,, 5 * 11, The Promise, ±
20%, 105 ° C 1 C69
20713000003 Metal membrane
capacitance
DIP, 103/250V, feet away from the 5MM
braid style, ± 5%, brown 2 C137,C106
88FA03200194 PCBA semi-finished
products
GTO-751EZ, pre-board DIP processing
test 1
10703000232 Potentiometer
DIP, B20K ȍ, ± 10%, Single Unit, L12,
semi-circular handle, horizontal, with
stand
2 VR2,VR3
GTO-751EZ
14

p/n name spec qty position
10703000233 Potentiometer DIP, C50Kȍ, ± 10%, double, L12, semi-
circular handle, horizontal 1 VR1
80513000007 Thermistor-PTC
DIP,PTC,200-300ȍ,300-
500ȍಽ䬞ץ僞,P=5.0 DIP, the PTC, 200-
300ȍ,300-500ȍpackaged separately,
P = 5.0
1 RQ1
88FA03100194 PCBA semi-finished
products
GTO-751EZ, pre-board AI processing
outsourcing. 1
20513000060 Electrolytic
capacitor
DIP 10uF/50V ± 20% 5 * 11 105 feet
away from the 5MM knitting belt black 5 C32,C33,C1,C2,C3
50403000019 FET DIP MPF102 type N-channel TO-92
Tape 1Q1
50403000021 FET DIP 2SK117BL TO-92 Tape-style 1 Q37
20743000066 MET capacitance DIP 393/100V ± 5% braid feet away
from the 5mm 1 C25
88FA03000194 PCBA semi-finished
products GTO-751EZ, pre-board, SMD outward 1
10103000008 chip resistor SMD 0ȍ1/10W ±1% 0603 2 R35,R07
10103000014 chip resistor SMD 100ȍ1/10W ±1% 0603 3 R3,R4,R35M
10103000017 chip resistor SMD 1Kȍ1/10W ±1% 0603 5 R8,R9,R19,R32,R43
10103000022 chip resistor SMD 10Kȍ1/10W ±1% 0603 8 R5,R7,R29,R30,R41,R42
,R44,R47
10103000024 chip resistor SMD 100Kȍ1/10W ±1% 0603 3 R24,R33,R43M
10103000026 chip resistor SMD 1Mȍ1/10W ±1% 0603 1 R45
10103000033 chip resistor SMD 11Kȍ1/10W ±1% 0603 1 R40
10103000111 chip resistor SMD 2Kȍ1/10W ±1% 0603 4 R25,R26,R27,R28
10103000113 chip resistor SMD 20Kȍ1/10W ±1% 0603 1 R31
10103000084 chip resistor SMD 17.8Kȍ1/10W ±1% 0603 1 R11
10103000165 chip resistor SMD 27Kȍ1/10W ±1% 0603 1 R37
10103000198 chip resistor SMD 330ȍ1/10W ±1% 0603 5 R21,R22,R38,R39,R23M
10103000205 chip resistor SMD 33Kȍ1/10W ±1% 0603 1 R23
10103000210 chip resistor SMD 3.4Kȍ1/10W ±1% 0603 1 R17
10103000254 chip resistor SMD 43Kȍ1/10W ±1% 0603 2 R36,R12
10103000265 chip resistor SMD 4.7Kȍ1/10W ±1% 0603 4 R13,R14,R15,R16
10103000268 chip resistor SMD 47Kȍ1/10W ±1% 0603 2 R1,R10
10103000291 chip resistor SMD 5.1Kȍ1/10W ±1% 0603 2 R34,R46
10103000340 chip resistor SMD 680ȍ1/10W ±1% 0603 1 R20
10103000369 chip resistor SMD 8.2Kȍ1/10W ±1% 0603 1 R2
20113000008 chip capacitor SMD 101/50V 0603 NPO ±5% 7 C26,C31,C18,C19,C21,C
22,C23
20123000007 chip capacitor SMD 104/50V 0603 X7R ±10% 7 C4,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 叿䶣 1Q3
50203000060 Transistor SMD MMBT5551 NPN SOT-23 叿䶣 1Q2
60103000647 IC SMD,ET62429M,SOP8,brand㧦(䦀ભპ)
,1U8
60103000096 IC SMD K1A78L05F SOT-89 KEC 1 U1
60103000698 IC SMD,SN8P2751P8AD,SO-8 1 U7
GTO-751EZ
15

p/n name spec qty position
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
10103000128 chip resistor SMD 22Kȍ1/10W ±1% 0603 1 R6
20743000048 MET capacitance DIP 224/63V ± 5% yellow braid feet
away from 5MM 2 C30,C29
20743000008 MET capacitance DIP 104/100V ± 5% yellow feet away
from the 5MM Tape 2 C24,C35
20743000044 MET capacitance DIP 223/100V ± 5% braid feet away
from the 5MM 1 C34
ZA0601000002 PCB left bracket Electrolytic plate, T = 1.0MM 1
HDA030220008 Electrolytic plate 1220 * 1220 * 1.0mm electrolytic plate
(with membrane) 1
ZA0601000003 PCB right bracket Electrolytic plate, T = 1.0MM 1
HDA030220008 Electrolytic plate 1220 * 1220 * 1.0mm electrolytic plate
(with membrane) 1
1.21103E+11 socket DIP,11PIN⋥ឯ,2.54mm, DIP, 11PIN
DIP, 2.54mm, 1 CN1
LS0101000235 Screw BM3 * 4 black zinc plating 2
88LE03200198 PCBA semi-finished
products
GTO-751EZ, light board, DIP processing
test 1
1.21103E+11 socket DIP, 3PIN, 2.54MM, curved foot 90
degrees, 1 J2S
88LE03000198 PCBA semi-finished
products GTO-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 100Kȍ1/10W ±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
10103000022 chip resistor SMD 10Kȍ1/10W ±1% 0603 10
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 2.2Kȍ1/10W ±1% 0603 2 R14A,R15A
10103000113 chip resistor SMD 20Kȍ1/10W ±1% 0603 2 R2A,R4A
10103000182 chip resistor SMD 30.1Kȍ1/10W ±1% 0603 2 R1A,R7A
10103000017 chip resistor SMD 1Kȍ1/10W ±1% 0603 2 R12A,R16A
50203000060 Transistor SMD MMBT5551 NPN SOT-23 叿䶣 3 Q1A,Q2A,Q3A
10103000374 chip resistor SMD 825ȍ1/10W ±1% 0603 1 R3A
60103000275 IC SMD LM393M SOP-8 ຠ 㧦ST 1U9
40903000108 LED SMD,red bright, 0603 , 1 LED1
40903000089 LED LED 0603, SMD, green 35mcd 2.0V
20mA 572nm LED 0603 1 LED3
40903000109 LED SMD, Orange,0603, 1 LED2
10103000747 chip resistor SMD,1.3Mȍ,1/10W-0603,±1%, 1 R30A
10103000340 chip resistor SMD 680ȍ1/10W ±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

p/n name spec qty position
LS0201000241 Screw BT3 * 10 is plated with zinc and hard 3
LS0101000066 Screw PM3 * 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 heatsink Aluminum alloy, the GTO, the ADC-12-
751EZ, drilling and tapping. 1
HDA060120001 Aluminum rod ADC-12 aluminum alloy ingots 2138
VSA000000915 Paint Black textured paint, CA-6551/CH-
KQ9854/F-2476 0.07
MK0301100033 left side cover Aluminum, aluminum alloy ADC-12 die
casting, paint black textured 1
MK0301000033 left side cover Aluminum material, 1
HDA060120001 Aluminum rod ADC-12 aluminum alloy ingots 140
VSA000000915 Paint Black textured paint, CA-6551/CH-
KQ9854/F-2476 0.05
MK0301100034 right side cover Aluminum, aluminum alloy ADC-12 die
casting, paint black textured 1
MK0301000034 right side cover Aluminum material, 1
HDA060120001 Aluminum rod ADC-12 aluminum alloy ingots 140
VSA000000915 Paint Black textured paint, CA-6551/CH-
KQ9854/F-2476 0.05
MK0201200283 The front panel Cold-rolled plates, T = 0.1MM the GTO-
751EZ, paint black plain, screen printing, 1
MK0201000283 front board Cold-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 board Cold-rolled plates, T = 1.0MM the GTO-
751EZ, paint black plain, screen printing, 1
HG0201000151 rear board Cold-rolled plates, T = 1.0MMGTO-
501EZ, material, 1
HDA010220012 Cold-rolled plates A3 board 222 * 1220 * 1.0 1
VSA000000569 Paint Black, paint, CH-KQ9711/F-03746, 0.05
XG0201100135 Bottom board Cold-rolled plates, T = 1.0 GTO804EZ,
paint black plain silk screen 1
XG0201000135 Bottom board Cold-rolled plates, T-= 1.0 GTO804EZ
to, material, 1
HDA010220020 Cold-rolled plates 306 * 1250 * 1.0MM 1
VSA000000569 Paint Black, paint, CH-KQ9711/F-03746, 0.06
AJ0111100563 Knob marked ABS + PC, black injector silver drops of
orange punctuation. 3
AJ0111000563 Knob marked ABS + PC, Black, 1
PTABS2000050 Plastic materials ABS + PC 8.02 thousand (cold material)
black type B 1
VSA000000319 Paint Silver, paint, 872082851/M3882 0.5
AJ0111000562 Knob ABS + PC, black etching 3
PTABS2000050 Plastic materials ABS + PC 8.02 thousand (cold material)
black type B 2.5
GTO-751EZ
17

p/n name spec qty position
LS0101000157 Screw TM, 3 * 10, mechanical teeth, black zinc
plating, hard 12
JD0101000022 Spring washer ij5.6 * ij3 * 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, ij= 120mm,
within engraved Harman test discs,
(Fuxiao PP bag)
1
1.21103E+11 RCA terminals DIP, 1PIN, the RCA wiring terminals
nickel plated male 2
BZ0302000007 PE maneuver bags 90 * 60 * 0.06MM printed green standard 1
BZ0202000186 EPE right L300 * W109 * H75MM, EPE, 1
TZ0302000610 Bar code serial
number stickers Bond paper, 50 * 15mm, 1
TZ0302000593 Serial number
stickers Bond paper, 30 * 5MM 2
TZ0302000609 Bar code sticker Bond paper, 42 * 70MM white black
printing. 3
TZ0302000602 Outside the box
barcode stickers
110 * 80MM bond paper black and
white, waterproof anti-spill fine 1
LP0202000004 Drier SILICA the GEL 5g / pack of 64-* 49MM,
white non-woven fabrics printed in blue 1
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
ĭ= 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,㊂䣈ش 1001EZ / 751EZ
/ 501EZ, Harman, the amount of
production with
1
GTO-751EZ
18

GTO-751EZ
19

GTO-751EZ
20