Page 1
GTO Series
75.4
75.4II
4 CHANNEL POWER AMPLIFIER
SERVICE MANUAL
JBL Consumer Products
250 Crossways Park Dr.
Woodbury, New York 11797 R
ev3vvv10/2005
Page 2
Power Amplifier GTO 75.4/75.4II
1
- CONTENTS -
SPECIFICATIONS ………………………………….……..1
FEATURES/TEST CONDITIONS……..…………………2
INSTALLATION………………….……...……..…...…...…3
CONNECTIONS………………….……...……..…...…..…4
SET-UP/CONTROLS ……..………………..…….….…...5
INSTALLING NEON TUBES..…….…….………………..5
BASIC TROUBLESHOOTING..…….…….………………7
TYPICAL SYSTEM WIRING..…….…….……………..…8
EXPLODED VIEW/PARTS LIST…….….….…………....9
MECHANICAL PARTS LIST..…….…….…………….....10
AMPLIFIER BLOCK DIAGRAM…………………….……11
P.C.B. DRAWINGS….……………………………….…….12
ELECTRICAL PARTS LIST ..……….……….…….….…16
VERSION II ELECTRICAL PARTS LIST ADDENDUM….……….19
IC/TRANSISTOR PINOUTS..……..….…….….….….…..20
GTO 75.4 SCHEMATICS………..………………..……...23
GTO 75.4II SCHEMATICS………..……………………...26
PACKING……..…………………………………………....29
GTO 75.4/75.4II Specifications
Output Power: 104W RMS x 4 channels @ 4 ohms; ≤1% THD + N
(14.4V supply) 142W RMS x 4 channels @ 2 ohms; ≤1% THD + N
284W RMS x 2 channels @ 4 ohms; ≤1% THD + N
Signal-to-noise ratio: 80dBA (reference 1W into 4 ohms)
Dynamic power: 163W @ 2 ohms
Effective damping factor: 6.38 @ 4 ohms
Frequency response: 10Hz – 83kHz (–3dB)
Maximum input signal: 5.8V
Maximum sensitivity: GTO 75.4 - 230mV
GTO 75.4II - 75mV
DC Offset <50Mv (-50%)
Output regulation: .069dB @ 4 ohms
Idle Current 1.3A
Input Impedance 22kΩ
Max Current Draw 52A @ 4 ohms
83A @ 2 ohms
Dimensions: 15 1/8 x 12 5/16 x 2 3/8” (L x W x D)
(384mm x 313mm x 60mm)
Fuses: 30A x 2
JBL continually strives to update and improve existing products, as well as create new ones. The specifications and details in
this and related JBL publications are therefore subject to change without notice.
Page 3
GTO 75.4/75.4II
2
Page 4
INSTALLATION
3
GTO 75.4/75.4II
WARNING: Playing loud music in an
automobile can hinder your ability to hear
traffic and permanently damage your
hearing. We recommend listening at low or
moderate levels while driving your car. JBL
accepts no liability for hearing loss, bodily
injury or property damage resulting from
the use or misuse of this product.
IMPORTANT: To get the best
performance from your JBL Grand Touring
Series amplifiers, we strongly recommend
that installation be entrusted to a qualified
professional. Although these instructions
explain how to install GTO amplifiers in a
general sense, they do not show specific
installation methods that may be required
for your particular vehicle. If you do not
have the necessary tools or experience,
do not attempt the installation yourself.
Instead, please ask your authorized JBL
car audio dealer about professional
installation.
INSTALLATION
WARNINGS AND TIPS
• Always wear protective eyewear when
using tools.
•Turn off the audio system and other
electrical devices before you start.
Disconnect the (–) negative lead from
your vehicle’s battery.
• Check clearances on both sides of
a planned mounting surface before
drilling any holes or installing any
screws. Remember that the screws
can extend behind the surface.
• At the installation sites, locate and
make a note of all fuel lines, hydraulic
brake lines, vacuum lines and electrical
wiring. Use extreme caution when cutting or drilling in and around these areas.
• Before drilling or cutting holes, use a
utility knife to remove unwanted fabric
or vinyl to keep material from snagging
in a drill bit.
• When routing cables, keep input-signal
cables away from power cables and
speaker wires.
•When making connections, make
certain they are secure and properly
®
insulated.
• If the amplifier’s fuse must be replaced,
use only the same type and rating as
that of the original. Do not substitute
another kind.
CHOOSING A LOCATION
AND MOUNTING THE
AMPLIFIER
Choose a mounting location in the trunk
or cargo area where the amplifier will not
be damaged by shifting cargo. Amplifier
cooling is essential for proper amplifier
operation. If the amplifier is to be installed
in an enclosed space, make sure there is
sufficient air circulation for the amplifier
to cool itself.
When mounting the amplifier under a
seat, ensure that it is clear of all moving
seat parts and does not affect the seat
adjustments. Mount the amplifier so it
is not damaged by the feet of backseat
passengers. Make sure that the amplifier
is mounted securely using nuts and bolts
or the supplied mounting screws.
Mount the amplifier so that it remains
dry – never mount an amplifier outside
the vehicle or in the engine compartment.
Figure 1. Terminal connection end plate.
POWER CONNECTIONS
The GTO amplifiers are capable of
delivering extremely high power levels,
and require a heavy-duty and reliable
connection to the vehicle’s electrical system
in order to perform optimally. See Figure 1
for connection location. Please adhere to
the following instructions carefully:
Ground Connection
Connect the amplifier’s Ground (GND)
terminal to a solid point on the vehicle’s
metal chassis, as close to the amplifier
as possible. Refer to the chart below to
determine minimum wire-gauge size. Scrape
away any paint from this location; use a startype lock washer to secure the connection.
Power Connection
Connect a wire (see chart at right for
appropriate gauge) directly to the vehicle’s
positive battery terminal, and install an
appropriate fuse holder within 18" of the
battery terminal.
this time. Route the wire to the amplifier’s
location, and connect it to the amplifier’s
Positive (+12V) terminal. Be sure to use
appropriate grommets whenever routing
wires through the firewall or other sheet
Failure to adequately protect the
metal.
positive wire from potential damage may
result in a vehicle fire.
routing and connecting this wire, you may
install the fuse at the battery.
Remote Connection
Connect the amplifier’s Remote (REM)
terminal to the source unit’s Remote TurnOn lead using a minimum of 18-gauge wire.
NOTE: When using the speaker level
inputs, connect the remote (REM) terminal
to the source unit. If your source unit does
not have a remote turn-on connection,
connect the amplifier’s (REM) terminal to
the vehicle’s accessory circuit.
Do not install the fuse at
When you are done
Speaker Connections
Refer to the application guides on the
pages that follow. Speaker connections
should be made using a minimum of
16-gauge wire.
High-Level Input Connections
The GTO75.4 and GTO75.4II
amplifiers are equipped with speaker-level
inputs that allow you to add an amplifier
to head units that do not have RCA line
outputs. The speaker outputs for the
source unit should be connected to the
amplifier using the supplied connector
(square four-wire plug). Remember to
check for proper polarity. The GTO301.1,
GTO601.1 and GTO1201.1 amplifiers are
not equipped with high-level inputs.
NOTE: When using the high-level inputs,
the AUX outputs can be used to pass a
line-level signal to another amplifier.
Wire Gauge Chart
Amplifier Maximum Minimum
Model Current Draw Wire Gauge
GTO75.4 85A #8 AWG
G
AWG
AWG
These recommendations assume 7' – 10'
wire runs. If your installation differs markedly, you will need to adjust the wire
gauge accordingly.
IMPORTANT NOTE: If you are planning
to use optional neon tubes, install them
before making any electrical connections
to the amplifier (refer to“Installing Neon
Tubes” on page 5).
Page 5
CONNECTIONS – GTO 75.4/75.4II
NOTE: For simplicity, Figures 6 through
8 do not show power, remote and input
connections.
NOTE: Minimum speaker impedance
for stereo operation is 2 ohms.
Minimum speaker impedance for
bridged operation is 4 ohms.
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
4
The GTO 75.4/75.4II can be set up for stereo
4-channel, 3-channel or bridged
2-channel operation, as shown in
Figures 6 through 8.
Figure 6.GTO 75.4/75.4II amplifier in 4-channel (stereo) operation to drive front and rear full-range speakers.
GTO 75.4/75.4II
Figure 7.GTO 75.4/75.4II is set up for 3-channel operation to drive a set of full-range speakers and a subwoofer.
Figure 8.GTO 75.4/75.4II used in bridged 2-channel mode to drive a set of components or subwoofers.
Page 6
INSTALLATION AND SETUP
SETTING THE
CROSSOVER(S)
SETTING INPUT
SENSITIVITY
1. Initially turn the INPUT LEVEL control(s)
to minimum (counter clockwise).
2. Reconnect the (–) negative lead to the
vehicle’s battery. Apply power to the
audio system and play a dynamic music
track.
3. On the source unit, increase the volume
control to 3/4 volume. Slowly increase
the INPUT LEVEL control(s) toward three
o’clock until you hear slight distortion
in the music. Then reduce the INPUT
LEVEL slightly until distortion is no
longer heard.
NOTE: After the source unit is on, red LEDs
(on the top panel) will light, indicating the
amplifier is on. If not, check the wiring,
especially the remote connection from the
source unit. Also refer to “Troubleshooting”
on the next page.
AUX OUTPUT
NOTE: When using the high-level inputs,
the AUX outputs can be used to pass a
line-level signal to another amplifier.
INSTALLING NEON TUBES
(OPTIONAL)
1. Using a Phillips screwdriver, remove all
screws on the amplifier’s output/power
end panel and set them aside.
2. Using a 3⁄ 32-inch Allen wrench, remove
only the screws on the amplifier’s (top)
clear cover and set them aside.
3. Remove the end panel and slide the
cover off. Set both parts aside.
4. Locate the enclosed hardware bag and
remove the four clips. Each clip has a
square end and a larger round end.
Using a round end, press two clips onto
each neon tube (e.g., Street Glow AN9
or equivalent), as shown in
Figure 13.
5. For each tube, align both clips so the
square ends slide onto an exposed
extrusion edge, as shown in Figure 9.
Do not cover any screw holes. When
installed correctly, each neon tube will
sit under an extrusion and not be visible
when viewed from directly above.
6. Route each neon tube’s power cable
through its respective NEON hole on the
end panel (see
Figure 13).
7. Slide the cover back into place and reinstall its screws. Then, replace the end
panel and reinstall its screws.
8. Finish the installation of the neon tubes
as instructed in their owner’s manual.
Figure 12.
5
GTO 75.4/75.4II
Determine your system plans and set the
crossover mode switch accordingly. If you
plan to use the GTO 75.4/75.4II to drive
full-range speakers, set the crossover
mode to FLAT and skip to “Setting Input
Sensitivity.”
Initially set the crossover frequency
control midway. While listening to music,
adjust the crossover for the least
perceived distortion from the speakers,
allowing them to reproduce as much
bass as possible.
Systems using a separate subwoofer set
the crossover mode to HP (high pass) for
your full-range speakers. Adjust the
crossover frequency to limit bass and
provide increased system volume with
less distortion.
For subwoofers, choose the highest
frequency that removes vocal information
from the sound of the subwoofer.
If using the GTO 75.4/75.4II to drive a
subwoofer(s), set the crossover mode to
LP (low pass).
GTO 75.4/75.4II amplifiers are
equipped with full-range outputs that can
be used to connect additional amplifiers.
Page 7
GTO 75.4/75.4II
6
Page 8
INSTALLATION AND SETUP
To Neon
Power
Supply
To Neon
Power
Supply
7
Figure 13. Installing neon tubes in a JBL GTO amplifier.
TROUBLESHOOTING
GTO 75.4/75.4II
SYMPTOM LIKELY CAUSE SOLUTION
No audio No voltage at BATT+ Check voltages at
(POWER LED or REM terminals, amplifier terminals
is off) or bad or no ground with VOM
connection
No audio DC voltage on Amplifier may need
(PROTECT LED amplifier output service; see enclosed
flashes every warranty card for
4 seconds) service information
No audio Amplifier is Make sure amplifier
(PROTECT overheated cooling is not blocked
LED is on) at mounting location;
verify speaker system
impedance is within
specified limits (see
“Specifications” on
the next page)
No audio Voltage less than 9V on Check vehicle
(PROTECT BATT+ connection charging system for
and POWER defective voltage
LEDs flash) regulator
SYMPTOM LIKELY CAUSE SOLUTION
No audio Voltage more than 16V Check vehicle
(PROTECT or less than 8.5V on charging system for
LED is on) BATT+ connection defective voltage
Distorted audio Input sensitivity is Check INPUT
Distorted audio Short circuit in Remove speaker leads
and PROTECT speaker or wire one at a time to locate
LED flashes shorted speaker or
Music lacks Speakers are not Check speaker
“punch” connected properly connections for
regulator
not set properly, or LEVEL setting; or
amplifier or source check speaker wires
unit is defective for shorts or grounds
wire, then repair
proper polarity
Page 9
GTO 75.4/75.4II
8
Grand TouringGrand Touring
Page 10
A
9
B
GTO 75.4/75.4II Exploded View
GTO 75.4/75.4II
C
D
E
71 2 3 4 5 6 8
Page 11
GTO 75.4/75.4II
10
Mechanical Parts List
Page 12
GTO 75.4/75.4II BLOCK DIAGRAM
11
GTO 75.4/75.4II
Page 13
GTO 75.4/75.4II
12
Page 14
FRONT
13
4.7/0.5W
D41
D42
Q181
Q281
C181
Q440
Q340
L/CH
REAR
R262
R261
YG225D2
YG225D2
J10817.5m/m
15m/m
J83
C3198GR
C3198GR
100/16V
TIP35C
C3200GR
Q435
TIP36C
Q445
TIP35C
C3200GR
Q335
TIP36C
Q345
U310
R366
1K
1
PAM631-01
REV. 0
680/2W
4.7/0.5W
R461
J10912.5m/m
12.5m/m
J11012.5m/m
12.5m/m
12.5m/m
12.5m/m
J107
12.5m/m
17.5m/m
12.5m/m
17.5m/m
NJM2068LD
R365
R303
C306
R306
J230
C304
C305
R305
J231
R302
104(M)
680/2W
104(M)
105(M)TL
55m/m
BJ07
J98
J97
J320
J94
J93
J92
J91
J90
J89
J8212.5m/m
J8112.5m/m
J80
7.5m/m
7.5m/m
J79
R381
56K
56K
15m/m
15m/m
20m/m
22m/m
0.1/3W
22m/m
22m/m
22m/m
22m/m
0.1/3W
J12611m/m
J12711m/m
22m/m
7.5m/m
J131
0.1/3W
22m/m
22m/m
22m/m
22m/m
0.1/3W
6m/m
R465
J229
1K
1K
47KF
22P
47KF
6m/m
10P
22P
47KF
6m/m
47KF
22/16V"SRE"
C302
102P
C301
R
ST-11A-2-8P
TER02
C261
R462
C461
680/2W
104(M)
R162
C161
R161
4.7/0.5W
473P
C32
60m/m
WIRE
C31
20m/m
20m/m
20m/m
18m/m
18m/m
18m/m
18m/m
18m/m
18m/m
15m/m
15m/m
15m/m
15m/m
R481
J117
J321
J118
J119
R460
J12019m/m
J121
J122
J123
J124
R470
J128
J130
J129
R360
J132
10m/m
J133
J13422m/m
J135
J136
J137
R370
J13812.5m/m
R466
J228
1K
12.5m/m
1
NJM2068LD
U301
22/16V"SRE"
22/16V"SRE"
C402
C303
RCA301
22KF
R301
DJB-562D
J42
J43
7.5m/m
7.5m/m
FRONT
R/CH
REAR
680/2W
4.7/0.5W
R361
R362
1K
C3198GR
R92
104(M)
C361
J11120m/m
W1
20m/m
J330
20m/m
J104
20m/m
J103
J10218m/m
J101
J10018m/m
J99
J8818m/m
J87
J86
J8518m/m
J84
J78
J76
J75
J74
J73
7.5m/m
J144
R451
R452
R436
J125
J143
C1027Y
Q434
R437
13.7KF
R471
22m/m
J142
473(M)
C440
2.7K
R447
R450
A1023Y
Q444
J141
6m/m
R445
R446
R351
R352
R336
J140
C1027Y
Q334
R337
13.7KF
R371
473(M)"TL"
C340
R347
R350
A1023Y
Q344
J139
R345
R346
CON301-1
TM2501-DG-14P
+15V
RL-IN
RR-IN
10m/m
J223
10m/m
J224
1K
R407
22P
C405
47KF
R405
47KF
R402
6m/m
J225
10P
C404
47KF
R406
10m/m
J226
10m/m
J227
22P
C406
47KF
R403
22/16V"SRE"
1K
R307
C403
102P
22KF
C401
R401
L
LAD1140-04PBK
Q02
Q90
C3198GR
R05
A1266GR
22K
R91
Q11
R90 47K
R12
10
47/16V
R15
C14
6m/m
J53
R13
A1266GR
Q12
J52
24K
R21
6m/m
J54
C12
100/16V
68K
R25
102(M)
C21
24K
R22
6m/m
J55
U01
820
R16
10/16V
4.7K
C800
R02
C3198BL
Q01
Q21
10K
R01
R14
100/16V
104P
C22
C13
1K
R31
10/0.5W
10/25V
R03
C15
1SS133
R32
D11
R34 15K
R33
A1268GR
15K
47/25V
R35
C16
Q22
15m/m
J311
J11212.5m/m
J113
12.5m/m
L01
J114
J115
CL-510
12.5m/m
12.5m/m
C51
470/50V
12.5m/m
12.5m/m
470/50V
C61
J71
J72
J7720m/m
R181
R281
J69
J68
J67
J70
56K
56K
22m/m
22m/m
23m/m
C3200GR
1.5K
Q451
2.2/50V
100P
C441
15K
C451
R441
47
1SS133
D451
R431
A1266GR
Q433
C432
R435
Q432
R472
Q442
Q431
C421
Q441
C442
Q443
Q351
C351
D351
Q333
C332
R335
Q332
R372
Q342
Q331
C321
Q341
C342
Q343
RR-OUT
GNDS
RL-OUT
7.5m/m
2
270K
R324
22/16V"SRE"
C323
C324
10K
HI301
100P
1K
C3198GR
1KF
A1266GR
C3198GR
68P
A1266GR
100P
C3198GR
C3200GR
100P
1SS133
A1266GR
100P
1K
C3198GR
1KF
A1266GR
C3198GR
68P
A1266GR
2.2/50V"SRE"
100P
C3198GR
222
270K
R423
R323
22/16V"SRE"
C423
R322
2.2/50V
C431
5.6K
R432
5.6K
R442
R434
100/16V
C471
R444
R433
R421
R443
2.2/50V
C420
2.2/50V
C341
R341
R331
2.2/50V
C331
5.6K
R332
5.6K
R342
R334
100/16V"SRE"
C371
R344
R333
R321
R343
C320
R320
104P
270K
R424
22/16V"SRE"
C424
10K
R422
SW302
6m/m
3.9K
6m/m
120
6m/m
1K
47
1.5K
15K
47
6m/m
3.9K
2.7K
120
6m/m
1K
47
-15V -15V
J222
JSS2219
WF-9604
FH01
J40
J41
10m/m
10m/m
10m/m
10m/m
7.5m/m
7.5m/m
R04
56K
J39
J38
J35
J37
J36
R63430K
8.2K
100/16V
4.7K
10K
TL494CN
22K
33K
J59
J310
20m/m
1SS133
A1266GR
220/0.5W
220/0.5W
A1266GR
1SS133
10m/m
10m/m
J58
25m/m
104P
4.7KF
10.5KF
15m/m
4
10m/m
J57
J56
R11
C11
C60
R62
R60
D03
Q33
R51
R41
Q23
D04
J51
3.9K
6m/m
A1023Y
4.7K
8
SCREW
L02
C63
CL-510
473P
GTO75.4
4700/50V"HC"
J66
10m/m
10m/m
C62
J65
J64
22m/m
22m/m
J63
17.5m/m
J116
6m/m
6m/m
6m/m
220/16V
J145
J146
D291
10m/m
J147
1KF
R420
10m/m
J148
7.5m/m
J150
C410
6m/m
J203
20m/m
11m/m
J205
10m/m
20m/m
20m/m
7.5m/m
J220
HNRD-3401L
R192
1K
TOL-30aSBaCAa-B2
C291
1N4744
D191
C192
J149
J151
J202
J206
J207
LED01
LED02
220/16V
C191
1N4744
330/16V
R220
10m/m
330/16V
C292
SCREW
7.5m/m
J200
7.5m/m
1K
1K
1K
22
22
22
22KF
22
1K
1K
22
22
22
22KF
22
1KF
104P
C210
J221
270K
22/16V"SRE"
MONO MONOSTEREO STEREO
J31
J32
10m/m
10m/m
6m/m
J33
J34
CL-310
12.5m/m
J4912.5m/m
J48
J4712.5m/m
J5012.5m/m
3
(0.7x15):(0.7x4):(0.7x1):(0.7x1)
4T:11T:8T:8T
44PHI
17.5m/m
J62
2.2/50V
C241
1K
R241
1K
R231
2.2/50V
C231
5.6K
R232
5.6K
R242
22
R234
100/16V
C271
22
R244
22
R233
22KF
R221
22
R243
2.2/50V
1KF
C220
2.2/50V
C141
1K
R141
1K
R131
2.2/50V
C131
5.6K
R132
5.6K
R142
22
R134
100/16V"SRE"
C171
22
R144
22
R133
22KF
R121
22
R143
2.2/50V"SRE"
C120
1KF
R120
6m/m
C400
J201
6m/m
J204
2
2
270K
270K
R123
R124
22/16V"SRE"
22/16V"SRE"
C124
C123
10K
R122
SW102
JSS2219
R292
J29
J30
7.5m/m
7.5m/m
7.5m/m
7.5m/m
BJ06
35m/m
6m/m
D01
J300
L03
C04
J4412.5m/m
J4612.5m/m
J4512.5m/m
T01
7
15m/m
15m/m
J61
J60
C3200GR
Q251
C251
1SS133
D251
A1266GR
Q233
100P
C232
R235
C3198GR
Q232
1KF
R272
A1266GR
Q242
C3198GR
Q231
C221
A1266GR
Q241
100P
C242
C3198GR
Q243
C3200GR
Q151
100P
C151
1SS133
D151
A1266GR
Q133
100P
C132
R135
C3198GR
Q132
1KF
R172
A1266GR
Q142
C3198GR
Q131
C121
A1266GR
Q141
100P
C142
C3198GR
Q143
104P
104P
C200
2
270K
R223
R224
22/16V"SRE"
C224
C223
10K
R222
1N5404
C03 104P
2
2200/25"WL"
C05
2200/25V"WL"
22
2200/25"WL"
2
C06
5
6
C52
R251
100P
15K
R252
47
R236
6m/m
J156
C1027Y
Q234
1K
3.9K
R237
13.7KF
R271
473(M)
C240
2.7K
R247
120
R250
68P
A1023Y
Q244
6m/m
J155
1K
R245
47
R246
1.5K
R151
15K
R152
47
R136
7.5m/m
J154
6m/m
J153
C1027Y
Q134
1K
3.9K
R137
13.7KF
R171
473(M)"TL"
C140
2.7K
R147
120
R150
68P
A1023Y
Q144
6m/m
J152
1K
R145
47
R146
CON101-1
TM2501-DG-14P
GNDS
FR-OUT
FL-OUT
1K
R207
47KF
R103
47KF
R106
22P
C106
47KF
R102
2
6m/m
6m/m
270K
J219
J216
6m/m
22/16V"SRE"
J217
10P
C104
1K
R107
6m/m
J218
HI101
R+R+ L+L+
R-R-
LAD1140-04PBK
DST0013-00
TER01
IN4004
REM GND
D02
J322
105(M)"TL"
J323
C01
7.5m/m
7.5m/m
7.5m/m
7.5m/m
7.5m/m
7.5m/m
12.5m/m
J01
J336
J02
J03
17.5m/m
J04
BJ05
BJ04
35m/m
35m/m
12.5m/m
10m/m
10m/m
17.5m/m
J337
J22
J21
17.5m/m
10m/m
10m/m
J23
J24
J331
J25
7.5m/m
1
7.5m/m
J26
7.5m/m
J27
J28
7.5m/m
7.5m/m
17.5m/m
17.5m/m
17.5m/m
17.5m/m
C08
222(M)
100/2W
D54
R30
FR154
4700/50V"HC"
C53473P
150/2W
R291
1.5K
J158 22m/m
J159 15m/m
J165
J166
R260
7.5m/m
J160
20m/m
22m/m
J161
22m/m
J162
22m/m
J163
22m/m
J164
17.5m/m
J169
J170
6m/m
R270
J171 22m/m
7.5m/m
J172
J173 22m/m
0.1/3W
R160
J174 22m/m
J175 22m/m
J176 22m/m
J177 22m/m
J178 22m/m
J179
19m/m
0.1/3W
R170
U110
NJM2068LD
R265
R266
1K
1
FR-IN
+15V
FL-IN
10m/m
J208
10m/m
J209
J213
22P
C205
47KF
NJM2068LD
R205
6m/m
J214
10m/m
J215
10P
C204
47KF
R203
U101
22P
C206
47KF
R105
47KF
R206
22P
C105
47KF
22/16V"SRE"
22/16V"SRE"
22/16V"SRE"
R202
C202
C102
C103
22KF
22KF
R201
R101
102P
C101
L-L-
C201
LL
RR
RCA101
DJB-554A
GTO 75.4/75.4II
W2
60m/m
WIRE
C34
105(M)TL
10m/m
10m/m
10m/m
10m/m
J332
J333
J334
J335
55m/m
55m/m
BJ02
BJ01
FQP50N06
47
R56
J05
J0617.5m/m
Q56
FQP50N06
47
R55
J07
J0817.5m/m
Q55
FQP50N06
47
R54
J09
J1017.5m/m
1K
R52
Q54
FQP50N06
47
R53
J1117.5m/m
J1217.5m/m
Q53
R46
FQP50N06
47
J13
J14
55m/m
BJ03
Q46
R45
FQP50N06
47
J15
J1617.5m/m
R44
Q45
FQP50N06
47
J1717.5m/m
J1817.5m/m
R42
1K
Q44
R43
FQP50N06
47
J19
J2017.5m/m
R61
C33 473P
FTD5-350
Q43
TH01
10K
3RD
3RD.
D53
D52
D51 FR154
4.7/50V
FR154
FR154
C67
4.7/50V
C57
150/2W
R191
15m/m
J157
TIP35C
0.1/3W
17.5m/m
Q235
C3200GR
Q240
TIP36C
J16711m/m
J16811m/m
0.1/3W
Q245
TIP35C
Q135
C3200GR
Q140
TIP36C
Q145
R165
R166
J210
1K
10m/m
1K
1K
1
22P
C126
10KF
R126
1K
R128
15m/m
10KF
R125
6m/m
J211
NJM2068LD
1K
R127
1K
R227
10KF
R225
6m/m
J212
22P
C226
10KF
U111
R226
1K
R228
22/16V"SRE"
4.7/50V"SRE"
4.7/50V"SRE"
C228
C128
C203
100K
R129
100K
R229
102P
Page 15
GTO 75.4/75.4II
14
W2
C34
R56
R55
R54
R52
R53
R46
R45
R44
R42
R43
R61
3RD
D53
D54
R291
J172
J179
R170
R265
J213
C205
R205
J214
J215
C204
R203
C206
R202
C203
R201
R129
C201
J174
J175
J176
J177
J178
J210
RCA101
Q56
Q55
Q54
Q53
Q46
Q45
Q44
Q43
TH01
C33
3RD.
D51
D52
C67
C57
R191
J157
J158
Q235
R260
J160
J161
J162
Q240
J163
J164
J167
J168
J169
R270
J171
J173
Q135Q245
R160
Q140
Q145
R165
R166
C126
R126
R128
R125
J211
R127
R227
R225
J212
C226
U111
R226
R228
C128
C228
R229
TER02
R262
R261
C261
R462
R461
C461
C161
C32
W1
C31
J98
J97
J320
J94
D41
D42
Q435
Q440
Q445
Q335
Q340
Q345
BJ07
J92
J91
J90
J89
J83
J82
J81
J80
Q181
Q281
J79
C181
R381
R481
J117
J321
J118
J119
R460
J120
J121
J122
J123
J124
R470
J126
J127
J128
J129
J131
R360
J133
J134
J135
J136
J137
R370
U310
R465
R365
R466
R366
J229
J228
R303
C306
R306
J230
C304
C305
R305
J231
U301
R302
C402
C302
C303
R301
C301
R362
R361
C361
R162
R161
J330
J104
J103
J102
J101
J115
J100
J99
J88
J87
J86
J85
J84
J78
J77
J76
J75
J74
J73
J70
J144
R451
R452
R436
J143
Q434
R437
R471
J125
J142
C440
R447
R450
Q444
J141
R445
J130
R446
R351
R352
J132
R336
J140
Q334
R337
R371
C340
R347
R350
Q344
J138
J139
R345
R346
CON301-1
J223
J224
R407
C405
R405
R402
J225
J222
C404
R406
J226
J227
R324
C406
R403
C324
R307
C403
R401
C401
RCA301
R04
R92
Q90
R91
R90
R15
J53
Q12
R21
J54
C12
R25
C21
R22
J55
R16
R02
Q21
R14
C22
R31
C15
D11
R34
R35
C16
J311
J114
C51
J72
C61
R181
R281
J69
Q451
C451
D451
Q433
C432
R435
Q432
R472
Q442
Q431
C421
Q441
C442
Q443
Q351
C351
D351
Q333
C332
R335
Q332
R372
Q342
Q331
C321
Q341
C342
Q343
R423
R323
C323
C423
R322
HI301
R63
Q02
R05
Q11
R12
C14
J310
R13
J52
U01
C800
Q01
R01
C13
R03
R32
R33
Q22
J112
J113
J59
L01
J71
L02
J65
J64
J68
J67
J66
C441
R441
R431
J145
J146
C431
R432
R442
R434
C471
R444
R433
R421
R443
C420
R420
J148
C341
R341
R331
C331
R332
R342
R334
C371
R344
R333
R321
R343
C320
R320
C410
C210
J221
R424
C424
R422
SW302
R192
L03
R11
C11
C60
R62
R60
D03
Q33
R51
R41
Q23
D04
J51
T01
C62
J61
J60
J62
J63
J116
C191
C291
D291
D191
J147
C192
J149
C292
J150
J151
J201
J203
J202
J205
J204
J206
J207
R124
C124
J220
R292
Q251
C241
C251
R241
D251
R231
Q233
C231
C232
R232
R235
R242
Q232
R234
R272
C271
Q242
R244
Q231
R233
C221
R221
Q241
R243
C242
C220
R220
Q243
C141
Q151
R141
C151
R131
D151
Q133
C131
C132
R132
R142
R135
R134
Q132
R172
C171
Q142
R144
Q131
R133
C121
R121
R143
Q141
C142
C120
R120
Q143
J200
R123
R224
J219
R223
C224
C223
C123
R222
R122
SW102
D02
C01
D01
C03
C05
C04
C06
R30
C52
R251
R252
R236
J156
Q234
R237
R271
J165
J166
C240
R247
R250
Q244
J155
R245
R246
J170
R151
R152
R136
J154
J153
Q134
R137
R171
C140
R147
R150
Q144
J152
R145
R146
CON101-1
R207
R103
R106
C106
R102
J216
J217
C104 R206
R107
J218
C102
C101
HI101
TER01
C08
C53
J159
U110
R266
J208
J209
U101
R105
C105
C103
C202
R101
Page 16
GTO 75.4/75.4II
15
Page 17
GTO 75.4/75.4II
16
TRS-00-00087 TRANSISTOR SMALL SIGNAL PNP KTA1023Y Q01,144,244,344,444 5
TRS-00-00088 TRANSISTOR SMALL SIGNAL NPN KTC1027Y Q134,234,334,434 4
TRS-00-00091 TRANSISTOR SMALL SIGNAL PNP KTA1268GR Q22 1
TRS-00-00111 TRANSISTOR SMALL SIGNAL NPN KTC3200GR Q151,251,351,451 4
TRS-00-00110 TRANSISTOR SMALL SIGNAL NPN KTC3198GR Q02,90,131,132,143,181,231,232,243,281 16
Q331,332,343,431,432,443
TRS-00-00090 TRANSISTOR SMALL SIGNAL PNP KTA1266GR Q11,12,23,33,133,141,142,233,241,242 16
Q333,341,342,433,441,442
TRS-00-00109 TRANSISTOR SMALL SIGNAL NPN KTC3198BL Q21 1
DIO-00-00108 DIODE FAST RECOVERY FR154 D51,52,53,54 4
DIO-00-00003 DIODE RECTIFIER IN4004 D02 1
DIO-00-00006 DIODE SWITCHING SIGNAL 1SS133 D03,04,11,151,251,351,451 7
RES-00-00437 RESISTOR METAL FILM 1/5WF 1K OHM R120,172,220,272,320,372,420,472 8
RES-00-00523 RESISTOR METAL FILM 1/5WF 4.7K OHM R62 1
RES-00-00402 RESISTOR METAL FILM 1/5WF 10K OHM R125,126,225,226 4
RES-00-00399 RESISTOR METAL FILM 1/5WF 10.5K OHM R60 1
RES-00-00417 RESISTOR METAL FILM 1/5WF 13.7K OHM R171,271,371,471 4
RES-00-00467 RESISTOR METAL FILM 1/5WF 22K OHM R101,121,201,221,301,321,401,421 8
RES-00-00537 RESISTOR METAL FILM 1/5WF 47K OHM R102,103,105,106,202,203,205,206,302,303 16
R305,306,402,403,405,406
RES-00-00610 RESISTOR CARBON FILM 1/5WJ 10 OHM R15 1
RES-00-00660 RESISTOR CARBON FILM 1/5WJ 22 OHM R133,134,143,144,233,234,243,244,333,334 16
R343,344,433,434,443,444
RES-00-00716 RESISTOR CARBON FILM 1/5WJ 47 OHM R43,44,45,46,53,54,55,56,136,146 16
R236,246,336,346,436,446
RES-00-00615 RESISTOR CARBON FILM 1/5WJ 120 OHM R150,250,350,450 4
RES-00-00756 RESISTOR CARBON FILM 1/5WJ 820 OHM R16 1
RES-00-00633 RESISTOR CARBON FILM 1/5WJ 1K OHM R31,42,52,92,107,127,128,131,135,141 38
R145,165,192,207,227,228,231,235,241,245
R265,292,307,331,335,341,345,365,407,431
R435,441,445,465,166,266,366,466
RES-00-00598 RESISTOR CARBON FILM 1/5WJ 1.5K OHM R151,251,351,451 4
RES-00-00644 RESISTOR CARBON FILM 1/5WJ 2.7K OHM R147,247,347,447 4
RES-00-00676 RESISTOR CARBON FILM 1/5WJ 3.9K OHM R12,137,237,337,437 5
RES-00-00702 RESISTOR CARBON FILM 1/5WJ 4.7K OHM R01,02,11 3
RES-00-00720 RESISTOR CARBON FILM 1/5WJ 5.6K OHM R132,142,232,242,332,342,432,442 8
RES-00-00751 RESISTOR CARBON FILM 1/5WJ 8.2K OHM R05 1
RES-00-00608 RESISTOR CARBON FILM 1/5WJ 10K OHM R13,14,61,122,222,322,422 7
RES-00-00623 RESISTOR CARBON FILM 1/5WJ 15K OHM R34,35,152,252,352,452 6
RES-00-00658 RESISTOR CARBON FILM 1/5WJ 22K OHM R32,91 2
RES-00-00663 RESISTOR CARBON FILM 1/5WJ 24K OHM R21,22 2
RES-00-00687 RESISTOR CARBON FILM 1/5WJ 33K OHM R33 1
RES-00-00714 RESISTOR CARBON FILM 1/5WJ 47K OHM R90 1
RES-00-00730 RESISTOR CARBON FILM 1/5WJ 56K OHM R04,181,281,381,481 5
RES-00-00742 RESISTOR CARBON FILM 1/5WJ 68K OHM R25 1
RES-00-00604 RESISTOR CARBON FILM 1/5WJ 100K OHM R129,229 2
RES-00-00706 RESISTOR CARBON FILM 1/5WJ 430K OHM R63 1
RES-00-00664 RESISTOR CARBON FILM 1/5WJ 270K OHM R123,124,223,224,323,324,423,424 8
RES-00-00053 RESISTOR METAL FILM 1/2WJ 4.7 OHM R161,261,361,461 4
RES-00-00018 RESISTOR METAL FILM 1/2WJ 10 OHM R03 1
RES-00-00038 RESISTOR METAL FILM 1/2WJ 220 OHM R41,51 2
ELC-00-00223 CAPACITOR ELECTROLYTIC "SMS" 2.2/50V C131,141,220,231,241,331,341,420,431,441 10
ELC-00-00229 CAPACITOR ELECTROLYTIC "SMS" 4.7/50V C57,67 2
ELC-00-00195 CAPACITOR ELECTROLYTIC "SMS" 10/16V C800 1
ELC-00-00203 CAPACITOR ELECTROLYTIC "SMS" 10/25V C15 1
ELC-00-00198 CAPACITOR ELECTROLYTIC "SMS" 47/16V C14 1
ELC-00-00205 CAPACITOR ELECTROLYTIC "SMS" 47/25V C16 1
ELC-00-00199 CAPACITOR ELECTROLYTIC "SMS" 100/16V C11,12,13,181,271,471 6
ELC-00-00200 CAPACITOR ELECTROLYTIC "SMS" 220/16V C191,291 2
ELC-00-00201 CAPACITOR ELECTROLYTIC "SMS" 330/16V C192,292 2
Page 18
GTO 75.4/75.4II
17
ELC-00-00249 CAPACITOR ELECTROLYTIC "SRE" 2.2/50V C120,320 2
ELC-00-00250 CAPACITOR ELECTROLYTIC "SRE" 4.7/50V C128,228 2
ELC-00-00641 CAPACITOR ELECTROLYTIC "SRE" 22/16V C102,103,123,124,202,203,223,224,302,303 16
C323,324,402,403,423,424
ELC-00-00243 CAPACITOR ELECTROLYTIC "SRE" 100/16V C171,371 2
MYC-00-00020 CAPACITOR MYLAR 5% 100V 102(M) J C21 1
MYC-00-00031 CAPACITOR MYLAR 5% 100V 222(M) J C08 1
MYC-00-00038 CAPACITOR MYLAR 5% 100V 473(M) J C240,440 2
MYC-00-00094 CAPACITOR MYLAR 5% 100V 104(M) J C161,261,361,461 4
MYC-00-00090 CAPACITOR MYLAR 5% 63V "TL" 473(M) J C140,340 2
MYC-00-00085 CAPACITOR MYLAR 5% 63V "TL" 105(M) J C01,31,34 3
CEC-00-00077 CAPACITOR CERAMIC DISK 50V "NPO" 10P F C104,204,304,404 4
CEC-00-00090 CAPACITOR CERAMIC DISK 50V "NPO" 22P F C105,106,126,205,206,226,305,306,405,406 10
CEC-00-00108 CAPACITOR CERAMIC DISK 50V "NPO" 68P F C121,221,321,421 4
CEC-00-00073 CAPACITOR CERAMIC DISK 50V "NPO" 100P F C132,142,151,232,242,251,332,342,351,432 12
C442,451
CEC-00-00074 CAPACITOR CERAMIC DISK 50V 102P F C101,201,301,401 4
CEC-00-00102 CAPACITOR CERAMIC DISK 50V 473P F C32,33,53,63 4
CEC-00-00076 CAPACITOR CERAMIC DISK 50V 104P F C03,22,60,200,210,400,410 7
JUP-00-00043 JUMPER 0OHM JUMPER 6m/m J33,52,53,54,55,116,130,139,140,141 34
J142,143,145,146,152,153,155,156,170,200
J203,204,211,212,214,216,217,218,219,225
J229,230,231,300
JUP-00-00044 JUMPER 0OHM JUMPER 7.5m/m J01,02,03,04,25,26,27,28,29,30 31
J31,32,40,41,42,43,79,80,129,144
J150,151,154,165,172,201,220,222,322,323
J331
JUP-00-00045 JUMPER 0OHM JUMPER 10m/m J21,22,23,24,34,35,36,37,38,39 32
J56,57,58,64,65,132,147,148,149,208
J209,210,215,221,223,224,226,227,332,333
J334,335
JUP-00-00052 JUMPER 0OHM JUMPER 11m/m J126,127,167,168,205 5
JUP-00-00046 JUMPER 0OHM JUMPER 12.5m/m J44,45,46,47,48,49,50,71,72,81 27
J82,89,90,91,92,93,94,109,110,112
J113,114,115,138,228,336,337
JUP-00-00047 JUMPER 0OHM JUMPER 15m/m J51,60,61,73,74,75,76,83,117,157 14
J159,213,311,321
JUP-00-00048 JUMPER 0OHM JUMPER 17.5m/m J05,06,07,08,09,10,11,12,13,14 23
J15,16,17,18,19,20,62,63,107,108
J131,160,169
JUP-00-00066 JUMPER 0OHM JUMPER 18m/m J78,84,85,86,87,88,99,100,101,102 10
JUP-00-00074 JUMPER 0OHM JUMPER 19m/m J120,179 2
JUP-00-00049 JUMPER 0OHM JUMPER 20m/m J77,97,98,103,104,111,118,166,202,206 14
J207,310,320,330
JUP-00-00075 JUMPER 0OHM JUMPER 22m/m J66,67,68,69,119,121,122,123,124,125 28
J128,133,134,135,136,137,158,161,162,163
J164,171,173,174,175,176,177,178
JUP-00-00076 JUMPER 0OHM JUMPER 23m/m J70 1
JUP-00-00042 JUMPER 0OHM JUMPER 25m/m J59 1
ICO-00-00022 I.C P.W.M TL494CN U01 1
ICO-00-00112 I.C DUAL OP AMP "SIP-08P" NJM2068LD U101,110,111,301,310 5
FET-00-00023 F.E.T N-CH MOSFET FQP50N06 Q43,44,45,46,53,54,55,56 8
TRS-00-00188 TRANSISTOR AUDIO POWER NPN TIP35C Q135,235,335,435 4
TRS-00-00207 TRANSISTOR AUDIO POWER PNP TIP36C Q145,245,345,445 4
TRS-00-00111 TRANSISTOR SMALL SIGNAL NPN KTC3200GR Q140,240,340,440 4
DIO-00-00152 DIODE FAST RECOVERY YG225D2 D41,42 2
DIO-00-00048 DIODE RECTIFIER 1N5404 D01 1
DIO-00-00206 DIODE ZENER 1W 15V 1N4744A D191,291 2
Page 19
GTO 75.4/75.4II
18
DIO-00-00278 LED RED COLOR HNRD-3401L LED01 1
DIO-00-00303 LED BLUE COLOR TOL-30aSBaCAa-B2 LED02 1
RES-00-01046 RESISTOR MOR/S 2WJ (15m/m FORMING) 100 OHM R30 1
RES-00-01264 RESISTOR MOR/S 2WJ (15m/m FORMING) 150 OHM R291 1
RES-00-01265 RESISTOR MOR/S 2WJ (17.5m/m FORMIN
RES-00-01041 RESISTOR MOR/S 2WJ (15m/m FORMING) 680 OHM R162,262,362,462 4
RES-00-00895 RESISTOR
THS-00-00013 THERMISTOR NTC RESISTOR FTD5-350 TH01 1
ELC-00-00234 CAPACITOR ELECTROLYTIC "SMS" 470/50V (12.5x20m/m) C51,61 2
ELC-00-00727 CAPACITOR ELECTROLYTIC "WL" 2200/25V (16x25m/m) C04,05,06 3
ELC-00-00714 CAPACITOR ELECTROLYTIC "HC" 4700/50V (25x30m/m) C52,62 2
WIRE WOUND 3WJ(FORMING 20m/m
G150 OHM R191 1
0.1 OHM R160,170,260,270,360,370,460,470 8
COR-TF-00386 CORE
COI-00-00093 INDUCTOR DRUM COIL CL-510 L01,02 2
COI-00-00028 INDUCTOR BAR COIL CL-310 L03 1
SWI-00-00024 SWITCH SLIDE SWITCH JSS-2219 SW102,302 2
JAC-00-00043 RCA JACK GOLD PLATED DJB-554A RCA101 1
JAC-00-00042 RCA JACK GOLD PLATED DJB-562D RCA301 1
TER-00-00241 TERMINAL GOLD PLATED DST0013-00 (3P) TER01 1
TER-00-00251 TERMINAL GOLD PLATED 2! 8P ST-11A-2-8P TER02 1
JUP-00-00005 JUMPER METAL JUMPER 55m/m BJ01,02,03,07 4
JUP-00-00003 JUMPER METAL JUMPER 35m/m BJ04,05,06 3
HOD-00-00011 FUSE HOLDER WF-9604 FH01 1
CON-00-00128 WAFER LAD1140-04PBK HI101,301 2
WIR-00-00208 WIRE ASS'Y 300m/m CHD1140-04PBK ACCESSORY 2
WIR-00-00015 WIRE
HED-00-00115
TUB-00-00008 TEFLON TUBE 0.7PHI 10m/m TH01,Q140,240,340,440 6
TUB-00-00009 TEFLON TUBE 0.7PHI 15m/m LED02 2
TUB-00-00006 TEFLON TUBE 0.7PHI 20m/m LED01 2
FUS-AT-00006 AUTO FUSE 30A SET2+ACCESSORY2 4
PCB-00-01355 P.C.B
ICO-00-00113 I.C DUAL OP AMP "SOP-08" NJM2068M U102,103,104,105,302,303,304,305,306,307 10
RES-08-00239 RESISTOR
RES-08-00022 RESISTOR
RES-08-00088 RESISTOR
RES-08-00117 RESISTOR
HEADER PIN SOCKET TM2501-DG-14P 14P CON101-1,301-1 2
4(0.7x15):11(0.7x4):8(0.7x1):8(0.7x1)
AWG #22 BK 3.2PHI RING LUG
FR-4 DOUBLE LAYER, 1Oz BROWN
SMD 0805 1/8WF 9.31K OHM R257,457
SMD 0805 1/8WF 15K OHM R155,255,355,455
SMD 0805 1/8WF 47K OHM R256,456
SMD 0805 1/8WF 91K OHM R156,356
44PHI MAGNETICS T01 1
60m/m W1,2 2
PAS319-01 148x92m/m 1
2
4
2
2
RES-08-00225 RESISTOR
RES-08-00148 RESISTOR
RES-08-00201 RESISTOR
RES-08-00210 RESISTOR
RES-08-00132 RESISTOR
RES-08-00187 RESISTOR
RES-08-00141 RESISTOR
CEC-08-00009 CAPACITOR
CEC-08-00017 CAPACITOR
CEC-08-00042 CAPACITOR
CEC-08-00040 CAPACITOR
MYC-00-00157 CAPACITOR MYLAR 5% 63V "TL"
MYC-00-00083 CAPACITOR MYLAR 5% 63V "TL"
ELC-00-00241
SWI-00-00112 SWITCH
VOL-00-00337 VOLUME
VOL-00-00338 VOLUME
HED-00-00245 PIN CONNECTOR
CAPACITOR ELECTROLYTIC"SRE"
SMD 0805 1/8WJ 820 OHM R108,208,308,408
SMD 0805 1/8WJ 1K OHM R391,392,491,492
SMD 0805 1/8WJ 5.6K OHM R113,115,213,215,313,315,413,415
SMD 0805 1/8WJ 6.8K OHM R396,496
SMD 0805 1/8WJ 10K OHM R110,111,112,114,210,211,212,214,310,311
SMD 0805 1/8WJ 39K OHM R393,493
SMD 0805 1/8WJ 150K OHM R397,497
SMD 0805 12pF C156,356
SMD 0805 20pF C256,456
SMD 0805 47pF C111,211,311,393,411,493
SMD 0805 473pF C195,196,295,296,395,396,495,496
SLIDE SWITCH JSS2301S120 SW101,301
V123H CO 20RS B20K (10%) 20KBx2 VR101,301,303
V124H CO 20RS C50K (10%) 50KCx4 VR102,302
TM2008-D81G-14P 14P CON101,301
R312,314,410,411,412,414
823J C113,115,213,215,313,315,413,415
104J C391,392,491,492
10/16V C125,155,225,255,325,355,425,455 8
4
4
8
2
16
2
2
2
2
6
8
8
4
2
3
2
2
Page 20
GTO 75.4/75.4II
19
GTO 75.4 Version II Electrical Parts List A ddendum
The following chart below represents the only electrical parts
differences in Version I and II models:
MODEL PART NAME PART NO SPEC DESIGNATOR
GTO 75.4 RESISTOR RE S -00-00437 1/5WF 1K OHM R120,220,320,420
1
GTO 75.4II RESISTOR RES-00-00545 1/5WF 5.6K OHM R120,220, 320,420
GTO 75.4 RESISTOR RE S -00-00417 1/5WF 13.7K OHM R171,271,371,471
2
GTO 75.4II RESISTOR RES-00-00508 1/5WF 33K OHM R171,271,371,471
GTO 75.4 RESISTOR RE S - 08-00225 SMD 0805 1/ 8WJ 820
3
GTO 75.4II RESISTOR RES-08-00242 SMD 0805 1/8WF 240
GTO 75.4 RESISTOR RE S - 08-00022 SMD 0805 1/ 8WF 15K
4
GTO 75.4II RESISTOR RES-08-00116 SMD 0805 1/8WF 9.1K
GTO 75.4 RESISTOR RE S - 08-00239 SMD 0805 1/ 8WF
5
GTO 75.4II RESISTOR RES-08-00200 SMD 0805 1/8WJ 5.1K
GTO 75.4 CAPACITOR CEC-08-00009 SMD 0805 12PF C156,356
6
GTO 75.4II CAPACITOR CEC-08-00023 SMD 0805 22PF C156, 356
GTO 75.4 CAPACITOR CEC-08-00017 SMD 0805 20PF C256,456
7
GTO 75.4II CAPACITOR CEC-08-00037 SMD 0805 39PF C256, 456
GTO 75.4 POWER TERMINAL TER-00-00241 (3P) DST0013-00 TER01
8
GTO 75.4II POWER TERMINAL TER-00-00277 (3P) DK-03B03-AG-1- DN TER01
GTO 75.4
9
GTO 75.4II
SPEAKER TERMINAL
SPEAKER TERMINAL
TER-00-00251 (8P) ST-11A-2-8P TER02
TER-00-00273 (8P) DK-0802-AG-1-DN TER02
OHM
OHM
OHM
OHM
9.31KOHM
OHM
R108,208,308,408
R108,208,308,408
R155,255,355,455
R155,255,355,455
R257,457
R257,457
Page 21
20
GTO 75.4/75.4II
Page 22
GTO 75.4/75.4II
21
Page 23
GTO 75.4/75.4II
22
Page 24
A
23
B
C
D
RCA101-C
DJB-554A
LOW INPUT R-CH
RCA101-A
DJB-554A
HI101
LAD1140-04PBK
+
-
HI-INPUT
-
+
LOW INPUT L-CH
RCA101-B
DJB-554A
RCA101-D
DJB-554A
R122
10K
R222
10K
C101
C201
102P
102P
R-OUT
4.7/50V"SRE"
22/16V"SRE"
22/16V"SRE"
C123
22/16V"SRE"
C124
22/16V"SRE"
C224
22/16V"SRE"
C223
22/16V"SRE"
22/16V"SRE"
22/16V"SREz"
L-OUT
4.7/50V"SRE"
C128
R129
100K
C102
R101
22KF
C103
C202
R201
22KF
C203
C228
R229
100K
R123
270K
R124
270K
R224
270K
R223
270K
R128
R102
47KF
C104
10P
R103
47KF
R202
47KF
C204
10P
R203
47KF
R228
1K
2
2
1K
2
2
1
U111-A
NJM2068LD
R106
47KF
R206
47KF
7
U111-B
NJM2068LD
6
5
C126
22P
R126
10KF
2
3
C226
22P
R226
10KF
-
+
2
-
+
3
C105
22P
R105
47KF
-
+
U101-A
NJM2068LD
C106
22P
C205
22P
R205
47KF
NJM2068LD
C206
22P
6
-
+
5
R165
1K
R265
1K
7
U101-B
GTO 75.4 Page1 Schematic
C191
C125
C225
C200
104P
104P
C192
330/16V
LED02
TOL-30aSBaCAa-B2
R120
1KF
-12.80V
C210
C292
330/16V
R220
1KF
220/16V
R192
-15V
C120
2.2\50V"SRE"
R121
22KF
2.2/50V
-15V
C291
220/16V
C220
2.2\50V
R221
22KF
2.2/50V
15V
1K
1N4744(15V)
C131
2.2/50V
R292
1K
C141
1N4744(15V)
C231
2.2/50V
C241
C121
68P
D291
C221
68P
D191
-1.47V
-15V
12.95V
5.6K
+15V
R242
5.6K
R191
150/2W
R131
1K
R132
5.6K
0.568V
R142
R141
1K
R291
150/2W
R231
1K
R232
5.6K
R241
1K
-0.607V
0.546V
-0.607V
0.546V
-37.6V
27.7V
VCC2
R135
1K
Q131
C3198GR
R133
22
-0.632V
R143
22
Q141
A1266GR
R145
1K
-27.7V
VEE2
100/16V"SRE"
R235
1K
Q231
C3198GR
R233
22
0.568V
R24322R244
Q241
A1266GR
R245
1K
37.6V
R134
22
R144
22
Q142
A1266GR
R172
1KF
C171
Q232
C3198GR
R234
22
22
Q242
A1266GR
R272
1KF
C271
100/16V
Q132
C3198GR
-0.607V
-0.607V
0.546V
37.6V
-38.1V
0V
0.546V
-37.6V
0V
R136
47
C132
100P
-0.324V
C140
473(M)"TL"
C142
100P
R171
13.7KF
C232
100P
-0.324V
C240
473(M)
C242
100P
R271
13.7KF
Q133
A1266GR
R137
3.9K
R147
2.7K
-0.987V
Q143
C3198GR
R146
47
R236
47
Q233
A1266GR
R237
3.9K
R247
2.7K
C3198GR
R246
47
-38.1V
0.759V
Q243
38.1V
0.759V
C3200GR
38.1V
C3200GR
0.238V
Q140
0.238V
Q240
-0.987V
Q134
C1027Y
R150
120
Q144
A1023Y
Q234
C1027Y
R250
120
A1023Y
-0.483V
Q244
Q135
TIP35C
R160
0.1/3W
R170
0.1/3W
Q145
TIP36C
Q235
TIP35C
R260
0.1/3W
R270
0.1/3W
Q245
TIP36C
R151
1.5K
R251
1.5K
-0.483V
R152
15K
D151
1SS133
1SS133
0V
0V
R252
15K
D251
Q151
C3200GR
C151
100P
0V
0V
Q251
C3200GR
C251
100P
38.6V
VCC1
38.6V
PROT
A
Q181
R181
C3198GR
56K
R281
56K
100/16V
C181
-38.6V
VEE1
38.6V
VCC1
-38.6V
VEE1
Q281
C3198GR
C161
104(M)
C261
104(M)
R161
4.7/0.5W
R261
4.7/0.5W
R162
680/2W
R262
680/2W
TER02-A
F/ROUT
ST-11A-2-8P
F/LOUT
R125
10KF
R127
1K
1
R227
1K
R225
10KF
R107
3
2
6
5
1K
U110-A
NJM2068LD
+
-
-
+
U110-B
NJM2068LD
R207
1K
FRONT-R
REAR-R
1
7
VR101-A
20KB
R166
1K
R266
1K
VR101-B
20KB
FRONT-L
REAR-L
SW101-A
JSS2301S120
LPF
HPF
FLAT
SW101-B
JSS2301S120
LPF
HPF
FLAT
C400
104P
1.478V
10/16V"SRE"
C410
104P
10/16V"SRE"
+15V
R112
10K
C111
C156
12P
R156
R257
9.31KF
6
5
NJM2068M
SW102
JSS2219
MONO
STEREO
3
2
R256 47KF
U102-B
8
C256
20P
91KF
7
4
-15V
U102-A
NJM2068M
1
C155
R155
15KF
10/16V
R108
820
1
FRONT-R
1
FRONT-L
C255
10/16V
R208
R255
820
15KF
47P
R111
10K
R110
10K
U103-B
NJM2068M
6
-
+
7
5
VR102A
50KC
R114
10K
R113
5.6K
32-320Hz VARIABLE X-OVER
R212
10K
C211
47P
R211
10K
U103-A
R210
10K
NJM2068M
2
-
+
1
3
VR102B
50KC
R213
5.6K
R214
10K
*NJM2068LD*
#4PIN : -15V
823M"TL"
6
-
+
5
823M"TL"
2
-
+
3
C113
NJM2068M
C213
U104-B
7
U104-A
NJM2068M
1
VR102C
VR102D
50KC
50KC
R115
5.6K
R215
5.6K
+15V
C195
473P
C295
473P
-15V
823M"TL"
6
-
+
5
823M"TL"
2
-
+
3
C115
NJM2068M
C196
473P
C296
473P
C215
U105-A
U105-B
7
NJM2068M
1
#8PIN : +15V
E
1
2
3
4
5
6
7
8
Page 25
GTO 75.4 Page2 Schematic
24
A
B
C
D
6.14V
R12
3.9K
R11
4.7K
100/16V
47/16V
5V
A1266GR
C11
C14
Q11
R14
10K
5V
R13
10K
0V
C12
100/16V
C60
104P
R15
10
Q12
A1266GR
R16
820
4.45V
5V
TH01
50KTH
R62
4.7KF
R21
24K
R25
68K
D11
1SS133
0V
REM
13.86V
R60
10.5KF
16 15 14 13 12 11 10 9
U01
TL494CN
C21
102(M)
0V
R22
24K
Q90
C3198GR
R90
47K
R91
22K
D02
1N4004
87654321
R63
430K
R04
56K
0.695V
C13
100/16V
R92
1K
13V
13.56V
R05
8.2K
D04
1SS133
R41
220/0.5W
D03
1SS133
R51
220/0.5W
LED01
HNRD-3401L
C800
10/16V
Q23
A1266GR
Q33
A1266GR
Q01
A1023Y
R02
4.7K
Q02
C3198GR
R42
1K
R52
1K
13.62V
R03
10/0.5W
R01
4.7K
R46
47
R45
47
R44
47
R43
47
R53
47
R54
47
R55
47
R56
47
12.90V
Q43
FQP50N06
Q53
FQP50N06
14.4V
Q44
FQP50N06
Q54
FQP50N06
Q45
FQP50N06
Q55
FQP50N06
Q46
FQP50N06
Q56
FQP50N06
C03
104P
1
C06
2200/25"WL"
2200/25"WL"
1
C05
2200/25"WL"
C04
1
L03
CL-310
D01
1N5404
T01
(0.7x15):(0.7x4):(0.7x1):(0.7x1)
YG225D2
R30
100/2W
C08
222(M)
YG225D2
4T:11T:8T:8T
D41
D42
FH01
30Ax2
470/50V"SMS"
CL-510
D53
FR154
D54
FR154
D51
FR154
D52
FR154
L01
CL-510
C51
C61
470/50V"SMS"
L02
C01
105(M)"TL"
C52
4700/50V"HC"
C62
4700/50V"HC"
C53
473P
C63
473P
B+
C57
4.7/50V
C67
4.7/50V
14.4V
VCC2
VEE2
VCC1
VEE1
27.7V
-27.7V
38.6V
-38.6V
E
5V
Q21
C3198BL
C22
104P
R35
15K
14.4V
PROT
C33
473P
R61
10K
W1
60m/m
CASE GND CASE GND
C32
C31
473P
105(M)"TL"
W2
60m/m
105(M)"TL"
C34
0V
C16
47/25V
38.5V
R31
1K
R32
22K
C15
10/25V
33K
R33
Q22
A1268GR
38.5V
R34
15K
71 2 3 4 5 6 8
Page 26
A
25
B
C
D
LOW INPUT R-CH
RCA301-A
DJB-562
HI301
LAD1140-04PBK
+
R322
10K
-
HI-INPUT
R422
10K
+
LOW INPUT L-CH
RCA101-B
DJB-562
C301
102P
22/16V"SRE"
22/16V"SRE"
22/16V"SRE"
22/16V"SRE"
C401
102P
22/16V"SRE"
22/16V"SRE"
C323
C324
C424
C423
22/16V"SRE"
22/16V"SRE"
C302
R301
22KF
C303
C402
R401
22KF
C403
R323
270K
R324
270K
R424
270K
R423
270K
R302
47KF
C304
R303
47KF
R402
47KF
C404
R403
47KF
GTO 75.4 Page3 Schematic
+15V
0V
38.6V
VCC1
38.6V
PROT
-38.6V
VEE1 R361
A
38.6V
VCC1
-38.6V
VEE1
C361
104(M)
C461
104(M)
4.7/0.5W
4.7/0.5W
R461
R362
680/2W
R462
680/2W
TER02-B
R/ROUT
ST-11A-2-8P
R/LOUT
+15V
12.95V
C320
2.2\50V"SRE"
R321
22KF
-12.8V
12.95V
C420
2.2\50V
R421
22KF
-12.80V
2.2/50V
2.2/50V
C341
2.2/50V
2.2/50V
C441
C431
C305
22P
R305
47KF
R307
U301-A
R365
R465
U301-B
1K
1
VR301-A
20KB
1K
U310-A
NJM2068LD
3
+
-
1
2
6
-
+
7
5
U310-B
NJM2068LD
1K
R407
1K
7
VR301-B
20KB
R366
R466
C355
10/16V
R308
820
1
1K
REAR-R
1
1K
REAR-L
C455
10/16V
R408
820
2
R406
47KF
R306
47KF
6
5
-
+
3
-
+
NJM2068LD
C306
22P
C405
22P
R405
47KF
NJM2068LD
C406
22P
10P
2
2
2
2
10P
R455
15KF
R355
15KF
R457
9.31KF
C356
6
5
SW302
JSS2219
MONO
STEREO
3
2
12P
R356
91KF
4
U302-B
NJM2068M
-15V
8
NJM2068M
R456 47KF
C456
20P
7
U302-A
1
C311
47P
R311
10K
U303-B
R310
10K
NJM2068M
6
-
+
5
32-320Hz VARIABLE X-OVER
C411
47P
R411
10K
U303-A
R410
10K
NJM2068M
2
-
+
3
R312
10K
C313
823M"TL"
R313
VR302A
VR302B
50KC
50KC
R314
10K
R412
10K
R414
10K
5.6K
R413
5.6K
7
1
U304-B
NJM2068M
6
-
+
5
C413
823M"RL"
U304-A
NJM2068M
2
-
+
3
*NJM2068LD*
#4PIN : -15V
VR302C
7
50KC
VR302D
1
50KC
#8PIN : +15V
R315
5.6K
R415
5.6K
+15V
-15V
C395
473P
C495
473P
823M"TL"
6
-
+
5
823M"TL"
2
-
+
3
C315
C415
U305-B
NJM2068M
C396
473P
C496
473P
NJM2068M
7
U305-A
1
SW301-B
JSS2301S120
R391
LPF
HPF
FLAT
1K
R392
1K
104(M)"TL"
104(M)"TL"
C391
C392
R397
150K
VR303-A
20KB
3
2
5
6
50Hz 0~12dB BASSBOOST
SW301-A
JSS2301S120
LPF
R491
1K
HPF
FLAT
R492
1K
C491
104(M)"TL"
C492
104(M)"TL"
R497
150K
VR303-B
20KB
3
2
5
6
R396
6.8K
R496
6.8K
+
-
+
-
+
-
+
-
R393
39K
C393
47P
NJM2068M
R493
39K
C493
47P
NJM2068M
U306-A
NJM2068M
1
U306-B
7
U307-A
NJM2068M
1
U307-B
7
C325
10/16V"SRE"
C425
10/16V"SRE"
R320
1KF
R420
1KF
C331
C321
C421
R331
R335
1K
1K
R332
5.6K
Q331
C3198GR
R334
R333
22
22
-0.607V
0.568V
R344
R343
22
22
0.546V
68P
Q341
A1266GR
A1266GR
R342
R345
5.6K
1K
-37.6V
R341
1K
-15V
R372
1KF
C371
100/16V"SRE"
+15V
R431
1K
R435
1K
R432
5.6K
Q431
C3198GR
C3198GR
R433
R434
22
R44322R444
Q441
A1266GR
R445
1K
22
22
Q442
A1266GR
R472
1KF
C471
100/16V
-0.607V
0.568V
68P
0.546V
R442
5.6K
R441
1K
-37.6V
-15V
37.6V
C3198GR
Q342
37.6V
Q432
Q332
-0.607V
0.546V
-0.607V
0.546V
0V
R336
47
C332
100P
C340
473(M)"TL"
C342
100P
R371
13.7KF
C432
100P
-0.324V
C440
473(M)
C442
100P
R471
13.7KF
Q333
A1266GR
R337
3.9K
R347
2.7K
Q343
C3198GR
-38.1V
R346
47
R436
47
Q433
A1266GR
R437
3.9K
R447
2.7K
Q443
C3198GR
R446
47
0.759V
0.759V
-0.987V
38.1V
C3200GR
38.1V
C3200GR
-38.1V
0.238V
R350
120
Q340
-0.483V
R450
0.238V
120
Q440
-0.483V
Q334
C1027Y
0.1/3W
0.1/3W
A1023Y
-0.987V
C1027Y
0.1/3W
0.1/3W
A1023Y
R360
R370
Q344
Q434
R460
R470
Q444
Q335
TIP35C
Q345
TIP36C
Q435
TIP35C
Q445
TIP36C
R351
1.5K
R451
1.5K
0V
R352
15K
1SS133
D351
0V
1SS133
R452
15K
D451
Q351
C3200GR
C351
100P
0V
R381
56K
R481
56K
Q451
C3200GR
C451
100P
E
71 2 3 4 5 6 8
Page 27
GTO 75.4II Page1 Schematic
26
GTO 75.4II
Q01
A1023Y
R03
Q23
A1266GR
Q33
A1266GR
R02
4.7K
Q02
C3198GR
R42
1K
R52
1K
R46
47
R45
47
R44
47
R43
47
10/0.5W
R01
4.7K
R53
47
R54
47
R55
47
R56
47
Q43
FQP50N06
Q53
FQP50N06
Q44
FQP50N06
Q54
FQP50N06
Q45
FQP50N06
Q55
FQP50N06
Q46
FQP50N06
Q56
FQP50N06
C03
104P
1
C06
2200/25"WL"
R63
C800
430K
D02
R04
C13
100/16V
R92
1K
56K
R05
8.2K
D04
1SS133
R41
220/0.5W
D03
1SS133
R51
220/0.5W
LED01
HNRD-3401L
10/16V
REM
1N4004
R60
10.5KF
R62
C60
4.7KF
104P
C14
47/16V
16 15 14 13 12 11 10 9
R11
4.7K
A1266GR
R12
3.9K
C11
100/16V
R13
R15
10K
10
Q12
Q11
A1266GR
R14
10K
100/16V
TH01
50KTH
C12
R16
820
U01
TL494CN
87654321
R21
24K
R25
68K
D11
1SS133
R22
R90
24K
47K
C21
102(M)
Q90
C3198GR
R91
22K
2200/25"WL"
C04
2200/25"WL"
1
1
C05
L03
CL-310
T01
4T:11T:8T:8T
(0.7x15):(0.7x4):(0.7x1):(0.7x1)
100/2W
C08
222(M)
D01
1N5404
YG225D2
R30
YG225D2
FH01
30Ax2
D41
470/50V"SMS"
D42
D53
FR154
D54
FR154
D51
FR154
D52
FR154
L01
CL-510
C51
C61
470/50V"SMS"
L02
CL-510
C01
105(M)"TL"
C52
4700/50V"HC"
C62
4700/50V"HC"
B+
12V
VCC2
C57
4.7/50V
C67
4.7/50V
C53
473P
C63
473P
VEE2
VCC1
VEE1
Q21
C3198BL
R32
C15
10/25V
Q22
A1268GR
22K
R33
33K
C16
R34
47/25V
15K
R35
PROT
15K
C33
473P
R61
10K
W1
60m/m
CASE GND CASE GND
C32
C31
473P
105(M)"TL"
W2
105(M)"TL"
60m/m
C34
R31
1K
C22
104P
Page 28
GTO 75.4II
27
C128
R128
R-OUT
4.7/50V"SRE"
L-OUT
22/16V"SRE"
22/16V"SRE"
C123
C124
C224
C223
22/16V"SRE"
22/16V"SREz"
4.7/50V"SRE"
1K
1
U111-A
NJM2068LD
R129
100K
C102
R102
47KF
C104
R101
10P
22KF
R103
C103
47KF
R106
47KF
R123
2
270K
R124
2
270K
R224
2
270K
R223
2
270K
R202
C202
47KF
C204
R201
10P
22KF
R203
C203
47KF
R206
47KF
C228
R228
1K
7
U111-B
R229
NJM2068LD
100K
RCA101-C
DJB-554A
LOW INPUT R-CH
RCA101-A
DJB-554A
10/16V"SRE"
HI101
LAD1140-04PBK
+
HI-INPUT
-
+
LOW INPUT L-CH
RCA101-B
DJB-554A
10/16V"SRE"
RCA101-D
DJB-554A
C101
R122
10K
R222
10K
C201
4
22/16V"SRE"
22/16V"SRE"
22/16V"SRE"
22/16V"SRE"
4
6
5
C126
22P
R126
10KF
2
3
+
C226
22P
R226
10KF
-
+
C105
22P
R105
47KF
+
NJM2068LD
C106
22P
C205
22P
R205
47KF
NJM2068LD
C206
22P
-
+
2
3
U101-A
6
5
R165
R265
U101-B
GTO 75.4II Page2 Schematic
C191
C400
104P
C125
10/16V"SRE"
C410
104P
C225
10/16V"SRE"
330/16V
C200
104P
TOL-30aSBaCAa-B2
C210
104P
C192
R120
5.6KF
330/16V
5.6KF
220/16V
LED02
3
2.2\50V"SRE"
C292
3
R220
C120
R121
22KF
C291
220/16V
C220
2.2\50V
R221
22KF
-15V
R192
1K
R292
1K
C141
2.2/50V
-15V
2.2/50V
C241
2.2/50V
+15V
1N4744(15V)
C131
2.2/50V
C121
D291
1N4744(15V)
C231
C221
68P
R191
VCC2
150/2W
R131
D191
1K
R135
1K
R132
5.6K
Q131
C3198GR
R133
22
R143
68P
22
Q141
R142
5.6K
A1266GR
R145
R141
1K
1K
R291
VEE2
150/2W
100/16V"SRE"
+15V
R231
R235
1K
1K
R232
5.6K
Q231
C3198GR
R233
22
R24322R244
Q241
A1266GR
R242
5.6K
R241
R245
1K
1K
-15V
R134
22
R144
22
A1266GR
R234
22
22
A1266GR
R272
1KF
C271
100/16V
Q142
R172
1KF
C171
Q232
C3198GR
Q242
Q132
C3198GR
R136
C132
100P
C140
473(M)"TL"
C142
3
R171
33KF
C232
100P
C240
473(M)
C242
100P
R271
3
33KF
47
Q133
A1266GR
Q134
C1027Y
Q135
TIP35C
Q151
R152
R151
C3200GR
15K
R137
3.9K
Q140
C3200GR
R147
2.7K
100P
Q143
C3198GR
R146
47
R236
47
Q233
A1266GR
R237
3.9K
Q240
C3200GR
R247
2.7K
Q243
C3198GR
R246
47
1.5K
R160
0.1/3W
R150
120
R170
0.1/3W
Q145
TIP36C
Q144
A1023Y
Q234
C1027Y
Q235
TIP35C
R250
R260
0.1/3W
120
R270
0.1/3W
Q245
TIP36C
Q244
A1023Y
C151
D151
100P
1SS133
Q251
1SS133
C3200GR
R252
15K
D251
C251
100P
R251
1.5K
VCC1
PROT
A
Q181
R181
C3198GR
56K
R281
56K
C181
100/16V
VEE1
VCC1
VEE1
Q281
C3198GR
104(M)
104(M)
TER02-A
F/ROUT
R161
R162
ST-11A-2-8P
4.7/0.5W
680/2W
C161
C261
R262
680/2W
R261
4.7/0.5W
F/LOUT
R125
10KF
FRONT-R
REAR-R
R127
1K
R107
1K
1
1K
U110-A
NJM2068LD
3
+
-
1
2
6
-
+
7
5
U110-B
NJM2068LD
1K
R207
1K
7
R225
10KF
R227
1K
VR101-A
20KB
R166
1K
R266
1K
VR101-B
FRONT-L
REAR-L
C155
10/16V
3
R108
240F
1
FRONT-R
1
FRONT-L
C255
10/16V
20KB
3
R208
R255
240F
9.1KF
+15V
R112
10K
3
C156
22P
R156
91KF
3
R155
9.1KF
6
5
4
U102-B
NJM2068M
-15V
SW102
JSS2219
MONO
STEREO
U102-A
8
NJM2068M
3
2
3
R256 47KF
3
R257
C256
5.1K
39P
C111
47P
R111
10K
U103-B
R110
NJM2068M
VR102A
6
-
10K
7
+
7
5
32-320Hz VARIABLE X-OVER
C211
47P
R211
10K
U103-A
NJM2068M
R210
10K
1
3
VR102B
2
-
+
1
3
C113
823M"TL"
U104-B
R113
NJM2068M
5.6K
50KC
R114
10K
R212
10K
R213
5.6K
50KC
R214
10K
6
+
5
823M"TL"
2
-
+
3
VR102C
7
C213
U104-A
NJM2068M
VR102D
1
C115
823M"TL"
U105-B
R115
5.6K
6
-
+
50KC
5
+15V
C195
473P
C295
473P
-15V
C215
823M"TL"
R215
5.6K
2
+
50KC
3
NJM2068M
C196
473P
C296
473P
U105-A
NJM2068M
SW101-A
JSS2301S120
LPF
HPF
7
FLAT
SW101-B
JSS2301S120
LPF
HPF
1
FLAT
3
CL 1-40182A
R120,220 1KF->5.6K / R171,271 13.7FK->33KF
R108,208 820->240F / R155,255 15K->9.1K
2004.06.14
JBL
Page 29
GTO 75.4II
28
R302
C302
47KF
RCA301-A
DJB-562
HI301
+
HI-INPUT
-
+
RCA101-B
DJB-562
4
C301
10/16V"SRE"
R322
10K
R422
10K
4
C401
10/16V"SRE"
C323
22/16V"SRE"
C324
22/16V"SRE"
C424
22/16V"SRE"
C423
22/16V"SRE"
22/16V"SRE"
R301
22KF
C303
22/16V"SRE"
R323
270K
R324
270K
R424
270K
R423
270K
C402
22/16V"SRE"
R401
22KF
C403
22/16V"SRE"
C304
10P
R303
47KF
R306
47KF
2
2
2
2
R402
47KF
C404
10P
R403
47KF
R406
47KF
LOW INPUT R-CH
LAD1140-04PBK
LOW INPUT L-CH
GTO 75.4II Page3 Schematic
+15V
+15V
C311
47P
R311
10K
U303-B
NJM2068M
VR302A
7
C411
47P
R411
10K
U303-A
NJM2068M
1
R312
10K
C313
823M"TL"
U304-B
R313
NJM2068M
5.6K
6
-
+
50KC
VR302B
50KC
R320,420 1KF->5.6K / R371,471 13.7FK->33KF
7
5
R314
10K
R412
10K
C413
823M"RL"
R413
U304-A
NJM2068M
5.6K
2
-
+
1
3
R414
10K
VR302C
VR302D
C315
823M"TL"
U305-B
R315
5.6K
6
+
50KC
5
+15V
C395
473P
C495
473P
-15V
C415
823M"TL"
R415
5.6K
2
-
+
50KC
3
SW301-B
NJM2068M
JSS2301S120
LPF
HPF
7
FLAT
C396
50Hz 0~12dB BASSBOOST
473P
C496
473P
U305-A
SW301-A
NJM2068M
JSS2301S120
LPF
1
HPF
FLAT
R391
1K
R392
R491
1K
R492
1K
1K
104(M)"TL"
104(M)"TL"
104(M)"TL"
104(M)"TL"
VR303-A
C391
C392
R397
150K
VR303-B
C491
C492
R497
150K
U306-A
NJM2068M
3
+
-
1
2
20KB
R393
39K
C393
47P
R396
6.8K
U306-B
NJM2068M
5
+
-
7
6
U307-A
NJM2068M
3
+
-
1
2
R493
20KB
39K
C493
47P
R496
6.8K
U307-B
NJM2068M
5
+
-
7
6
C325
10/16V"SRE"
C425
10/16V"SRE"
5.6KF
5.6KF
R320
R420
3
3
C320
2.2\50V"SRE"
R321
22KF
C420
2.2\50V
R421
22KF
2.2/50V
C305
22P
R305
47KF
R307
1K
2
-
+
1
3
U301-A
NJM2068LD
C306
22P
R365
1K
U310-A
NJM2068LD
3
+
-
2
6
-
+
5
NJM2068LD
R465
1K
C405
22P
R405
47KF
R407
6
5
-
+
U301-B
NJM2068LD
C406
22P
1K
7
U310-B
1
7
VR301-A
20KB
VR301-B
10/16V
3
R308
240F
R366
1
1K
REAR-R
R466
1
1K
REAR-L
20KB
3
R408
240F
C355
10/16V
3
C356
22P
R356
3
91KF
R355
9.1KF
SW302
JSS2219
STEREO
6
5
NJM2068M
-15V
MONO
U302-B
R310
6
-
10K
7
+
5
4
32-320Hz VARIABLE X-OVER
C455
R455
9.1KF
U302-A
R410
8
3
2
3
R456 47KF
3
R457
5.1K
NJM2068M
C456
39P
2
-
10K
1
+
3
3
C341
2.2/50V
2.2/50V
C441
C331
2.2/50V
C431
R331
R335
1K
1K
R332
5.6K
Q331
C3198GR
R333
22
C321
68P
C421
68P
R343
22
Q341
A1266GR
R342
R345
5.6K
1K
R341
1K
-15V
-15V
100/16V"SRE"
+15V
R431
1K
R435
1K
R432
5.6K
Q431
C3198GR
R433
22
R44322R444
Q441
A1266GR
R442
5.6K
R445
R441
1K
1K
R334
R344
A1266GR
C371
R434
A1266GR
R472
C471
100/16V
22
22
1KF
22
R372
22
Q442
C3198GR
Q342
1KF
Q432
C3198GR
R336
47
Q333
A1266GR
R337
3.9K
R347
2.7K
R346
47
R436
R437
3.9K
R447
2.7K
Q343
C3198GR
47
Q433
A1266GR
Q443
C3198GR
R446
47
Q334
C1027Y
Q335
TIP35C
Q351
C3200GR
R352
R351
15K
1.5K
Q345
Q435
TIP35C
R451
C351
D351
100P
1SS133
R381
56K
R481
56K
Q451
C3200GR
R452
1.5K
15K
D451
C451
1SS133
100P
Q340
C3200GR
Q440
C3200GR
R360
R350
120
0.1/3W
R370
0.1/3W
TIP36C
Q344
A1023Y
Q434
C1027Y
R450
R460
120
0.1/3W
R470
0.1/3W
Q445
TIP36C
Q444
A1023Y
Q332
C332
100P
C340
473(M)"TL"
C342
100P
3
R371
33KF
C432
100P
C440
473(M)
C442
100P
3
R471
33KF
VCC1
PROT
VEE1 R361
4.7/0.5W
C361
104(M)
A
C461
104(M)
4.7/0.5W
VCC1
VEE1
TER02-B
R/ROUT
ST-11A-2-8P
R362
680/2W
R462
R461
680/2W
R/LOUT
Page 30
GTO 75.4/75.4II
29
Item
Part Number
BOX-36-146AA GTO 75.4 Gift box carton 1
1
BOX-36-146AC GTO 75.4II Gift box carton 1
2 INN-42-004A0 End Pads 2
MAN-00-0195A GTO 75.4 Owner’s manual
MAN-01-0195Z GTO 75.4II Owner’s manual
3
MAN-00-0196A GTO 75.4 Owner’s manual
CAR-WA-004A Warranty Card 1
4 FUS-AT-00006 Fuse 30A 2
SC4-NP-40250 Mounting screw
BKT-14-523A0 Bracket lamp SK-5/BK 4
WIR-00-00208 Wire Ass’y
5 Pair Pack carton 1
Description
(USA)
(USA)
(Europe)
STT1 PH 4X25 NI
CHD1140-04P BK
Qty
1
1
1
4
2
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