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GTO3501
1 CHANNEL POWER AMPLIFIER
SERVICE MANUAL




JBL Consumer Products
250 Crossways Park Dr.
Woodbury, New York 11797 Rev1 1/2008
Released 2007
Discontinued XXXX
GTO3501
- CONTENTS -

SPECIFICATIONS ...............................................1
PACKING............................................................2
CONTROL/INSTALLATION DRAWINGS..................3
CONTROL/INSTALLATION INSTRUCTIONS.............4
BASIC TROUBLESHOOTING.....................................5
EXPLODED VIEW/PARTS LIST...............................6
AMPLIFIER BLOCK DIAGRAM...............................7
ELECTRICAL PARTS LIST ....................................8
P.C.B. DRAWINGS...............................................12
IC/TRANSISTOR PINOUTS....................................14
SCHEMATICS.....................................................15



GTO 3501 Specifications

Output Power: 225W RMS x 1 channels @ 4 ohms; 1% THD + N
(14.4V supply) 360W RMS x 1 channels @ 2 ohms; 1% THD + N
Signal-to-noise ratio: 85dBA (reference 1W into 4 ohms)
104dBA (reference rated power into 4 ohms)
Dynamic power: 350W @ 2 ohms
Frequency response: 20Hz ­ 330Hz (­3dB)
THD+N 1KHz LPF=22KHz 0.04% (rated power @ 4 ohms)
Input Impedance >20K ohms
Maximum input signal: 6.0V
Maximum sensitivity: 100mV
Bass Boost @ 50Hz 0-12dB
DC Offset <30mV
Output regulation: .03dB @ 4 ohms
Idle Current @ 4 ohms 0.8A
Max Current Draw <45A @ 2 ohms
Remote Operating Voltages ON 5V OFF 4V
Turn-on delay time 2-3 sec
Circuit Protection Temperature (90±5C), Short circuit
Operating voltage range (8-16V)
Dimensions: 12 1/4 x 10 3/8 x 2 1/8" (310 x 263 x 53mm)
Fuses: (2) x 30A

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.



1
GTO3501




Item Part Number Description Qty

1 CH3923221133 Outer Carton 1
2 BZL311105120 Packing Foam 2
3 GTO3501 Amplifier 1
4 Plastic bag 1
5 Plastic bag 1
6 Visit www.jbl.com Owner's manual 1
7 Accessory kit consisting of:
8 LS1AA0404501 Mounting Screws 4
9 1601-303G-00 30A Fuse 2
REMOTE GTO AMP Remote Level control 1
2100-0009-04 Phone cable 4PIN Black L=6M, 6P4C 1



2
GTO3501



4x 2x 1x
1x

2x 1x




10-3/8"
263mm




0 1 2 12-1/4"
310mm
2-1/8"
53mm




±ÈÀý
1.000
D
34 9 A 8




1"
5 6 7 25mm

A B

B C
1-5/8"
A B C D 40mm

A
8



3
GTO3501
GTO3501 CAR AUDIO SUBWOOFER AMPLIFIER OWNER'S MANUAL
Installation Warnings and Tips: 0 Speaker Output Connectors 7 DBO (Dynamic Bass Optimization) Variable
· Disconnect the negative (­) lead from your vehicle's · Connect the subwoofer to these terminals, Subsonic High-Pass Filter With Variable Boost (Q)
battery. observing proper polarity. Either + or ­ · For woofers in tuned (vented) enclosures, set
· At the installation sites, locate and make a note of terminal may be used. Minimum total the Frequency control to a value 10Hz below the
all fuel lines, hydraulic brake lines, vacuum lines impedance is 2 ohms. enclosure's resonance (tuned) frequency.
and electrical wiring. Use extreme caution when 1 Fuses · For woofers in sealed boxes, set the control to
cutting or drilling in and around these areas. · Replace only with the same type and rating. any value you prefer between 30Hz and 50Hz.
· Choose a safe mounting location away from moisture. 2 Power Input Connectors · Set the Boost control according to your
· Make sure there is sufficient air circulation at the · +12V: Connect to the positive terminal of the preference, being careful not to apply
mounting location for the amplifier to cool itself. vehicle's battery. 8 AWG wire is recommended. enough boost to damage your woofer(s).
· Mount the amplifier, using the supplied hardware. Install an appropriate fuse holder and fuse (60A A DBO High-Pass Filter Frequency control,
minimum) within 18 inches of the battery. Make variable between 10Hz and 100Hz. See
Specifications sure the wire is not damaged or pinched during above for appropriate settings.
installation. Install protective grommets when B DBO Boost control provides up to
· 225W RMS x 1 channel @ 4 ohms and 1% THD + N*
routing wires through the firewall or other sheet 12dB of boost slightly above the high-
· 360W RMS x 1 channel @ 2 ohms and 1% THD + N* metal. pass filter's frequency. See above for
· THD + N: 0.04% (rated power @ 4 ohms) · GND: Connect to the vehicle's chassis. Refer to appropriate settings.
· Signal-to-noise ratio: 85dBA the picture below. 8 Remote Level Control (RLC) Connector
(reference 1W into 4 ohms)*
Factory Bolt Ring Connector · Connect the Remote Level Control (RLC) here,
· Signal-to-noise ratio: 104dBA using the supplied RJ-11 cable.
(reference rated power into 4 ohms) Ground Wire
9 Power On LED
· Frequency response: 20Hz ­ 330Hz (­3dB) · Illuminated when the amplifier is on.
· Max power: 360 watts A Protect LED
* CEA-2006A-compliant · Illuminated under any of the following fault
conditions: battery over/under voltage, short
circuit in speaker wires, amplifier is too hot,
Note: Remove any paint amplifier's output circuit has failed (DC voltage
Star Washer
below ring connector. is present in the amplifier's output).
B Setting Input Level
· REM: Connect to the "Remote Out" lead from A Turn Input Level control counterclockwise to
the source unit or to a source of switched 6V (minimim).
12V+ (ACC). B With a dynamic music track playing, turn the
3 Aux Output Connectors (RCA) head unit's volume control to the 3/4 position.
· Nonfiltered pass-through output. Connect to the C Turn Input Level control clockwise until the
input of an additional amplifier. bass output is proportionate to the output of
4 Input Connectors (RCA) the high-frequency speakers, according to
· Connect to the RCA outputs from the source unit your preference.
or signal processor. D Input level is now adjusted correctly.
5 Input-Level Control C Setting the Crossover
· Used to match the input level of the amplifier A Crossover setting for subwoofers.
to the output level of the source unit. Note: Acceptable frequency ranges are indicated
· See B for the adjustment procedure. in gray.
6 Low-Pass Filter Frequency Control D Remote Level Control
· 12dB/octave low-pass filter, The Remote Level Control, if installed, will allow
variable from 32Hz to 320Hz. you to adjust the level of bass while seated in the
· See C for the adjustment procedure. listening position.




4
GTO3501

Amplifier Troubleshooting Guide

1. Status LED on Amplifier not Lit - Head Unit (Source) Turned ON
Verify:
A. Remote turn-on wire from source to amplifier has proper voltage
B. Power (B+) connections at amplifier, terminal blocks, and battery are secure
C. Ground (GND) connections at amplifier and vehicle chassis are secure
D. Battery B+ fuse (if used) is OK
E. Amplifier fuse is OK
F. B+ at battery and B+ at amplifier has proper voltage


2. Status LED's Lit, No Output from Speakers in Normal Operating Condition
Verify:
A. RCA cables from amplifier to source are securely connected
B. Volume adjustment on amplifier is correctly adjusted
C. Source is ON and playing


3. Engine Noise From Speaker(s)
Turn source OFF, Disconnect RCA cables at amplifier. If noise stops, check equipment & cables leading
to amplifier.
Verify:
A. RCA cables are of good quality with no breakage to internal shields
B. RCA cables from source to amplifier are not run alongside any power cables


4. Amplifier Output Distorted Music
Verify:
A. Source output music to amplifier is not distorted
B. Source output sensitivity is correctly adjusted


5. Amplifier Shuts Down, Green LED's are Lit - Amplifier is in Thermal Protection Mode
Verify:
A. Amplifier is mounted with adequate air circulation around heatsinks or vents
B. Amplifier is not mounted under carpet or sealed enclosure
C. Speakers meet correct impedance for application (mono or stereo hookup)


6. Amplifier Does Not Turn ON, and Red LED is Lit Amplifier (and not Connected to a Shorted Speaker)
Verify:
A. Speaker crossover (if used) is not defective




5
GTO3501



Part Number Part Number

Trans. Clamp




Trans. Clamp




1380-0003-00




RCA CAP (Red)

RCA CAP (Wht)




Front Plate


Standoff




6
1 2 3 4




GTO3501
D D


BALANCED
INPUT
UNIT




OP




MODEL FREQ BASS BOOST
VARIABLE LP VARIABLE MAIN AMP
BALANCED 11HZ--320HZ/12dB 2ohm/4ohm
0dB--12dB/20HZ~100HZ FRONTL
INPUT
C UNIT C
GAIN CONTROL 20HZ~100HZ
11 25 320 11 320
OP OP OP AMP




SPEAKER




AUX OUT L

OP




B B
+V

AUX OUT R + +VCC
Battery POWER SUPPLY
OP -VCC
-


-V




A A




7
1 2 3 4
GTO3501

GTO3501 Electrical Parts List
Part Number Description Qty Reference Designator

MAIN PCB

Resistors

0702-34R7-02 Resistor 1/2W 4.7 ±5% 3 R242 R37 R36
0702-4220-02 Resistor 1W 22 ±5% 3 R142 R141 R140
0702-3101-02 Resistor 1/2W 100 ±5% 2 R223 R222
0702-24R7-02 Resistor 1/4W 4.7 ±5% 6 R231 R229 R228 R227 R226 R225
0702-2472-02 Resistor 1/4W 4.7K ±5% 1 R122
0702-3271-02 Resistor 1/2W 270 ±5% 2 R221 R220
07301220XK01 Resistor 1/8W 22 ±1% 5 R213 R212 R211 R210 R112
0702-1680-02 Resistor 1/8W 68 ±5% 2 R203 R202
0702-1101-02 Resistor 1/8W 100 ±5% 7 R42 R138 R137 R136 R134 R133 R132
0702-1201-02 Resistor 1/8W 200 ±5% 1 R45
0702-1221-02 Resistor 1/8W 220 ±5% 3 R207 R131 R129
0702-1471-02 Resistor 1/8W 470 ±5% 1 R240
0702-1821-02 Resistor 1/8W 820 ±5% 1 R38
0702-1102-02 Resistor 1/8W 1K ±5% 8 R201 R200 R113 R33 R32 R31 R30 R25
0702-1431-02 Resistor 1/8W 430 ±5% 1 R49
0702-1152-02 Resistor 1/8W 1.5K ±5% 6 R253 R252 R250 R249 R241 R238
0702-1182-02 Resistor 1/8W 1.8K ±5% 2 R48 R41
0702-1302-02 Resistor 1/8W 3K ±5% 1 R159
0702-1222-02 Resistor 1/8W 2.2K ±5% 2 R204 R217
0702-1332-02 Resistor 1/8W 3.3K ±5% 1 R120
0702-1472-02 Resistor 1/8W 4.7K ±5% 4 R205 R110 R109 R26
0702-1512-02 Resistor 1/8W 5.1K ±5% 1 R39
0702-1562-02 Resistor 1/8W 5.6K ±5% 2 R15 R9
0702-1682-02 Resistor 1/8W 6.8K ±5% 3 R216 R215 R214
0702-1752-02 Resistor 1/8W 7.5K ±5% 1 R50
R121 R103 R102 R101 R100 R62 R27
0702-1103-02 Resistor 1/8W 10K ±5% 9
R21 R117
0702-1153-02 Resistor 1/8W 15K ±5% 2 R256 R239
0702-1203-02 Resistor 1/8W 20K ±5% 3 R119 R18 R17
0702-1223-02 Resistor 1/8W 22K ±5% 4 R208 R106 R7 R1
0702-1243-02 Resistor 1/8W 24K ±5% 2 R209 R40
0702-1333-02 Resistor 1/8W 33K ±5% 1 R118
R29 R28 R24 R23 R13 R12 R11 R10 R8
0702-1473-02 Resistor 1/8W 47K ±5% 13
R6 R5 R4 R3
0702-1563-02 Resistor 1/8W 56K ±5% 3 R150 R235 R14
0702-1474-02 Resistor 1/8W 470K ±5% 1 R206
0702-1104-02 Resistor 1/8W 100K ±5% 4 R2 R54 R53 R218
0705-515X-07 Resistor 5W 0.15 ±5% 6 R260 R259 R237 R234 R233 R236
0704-6202-02 Resistor 2W 2K ±5% 2 R108A R107A
0702-1205-02 Resistor 1/8W 2M ±5% 1 R44
1204-5011-01 potentiometer B500 KQ L=15 ±15% BOOST 1 VR4
1204-5031-30 potentiometer B50K ±15% R0971G INPUT LEVEL 1 VR1
1204-2041-03 potentiometer A2K/A200K KQ A2K,A200K HP FREQ 1 VR3
1204-5031-34 potentiometer C50K KQ L=15 ±15% LP FREQ 1 VR2

Capacitors

06D212256301 CAP,Electro 2.2UF/50V ±20% 5*11 105C 1 C208
06D211073116 CAP,Electro 100UF/16V±20% 5*11 105C black 3 C104 C138 C137
06D211074100 CAP,Electro 100uF/25V ±20% 6.3*11 105C black 1 C148
06D212264103 CAP,Electro 220uF/25V ±20% 8*12 105C black 2 C209 C139
06D212264102 CAP,Electro 22uF/25V ±20% 5*11 105C black 1 C103 C8
06D214775117 CAP,Electro 470uF/35V ±20% 10*17 105C 2 C134 C133
06D214765000 CAP,Electro 47UF/35V ±20% 5*11 105C 2 C36 C35
06D214763109 CAP,Electro 47uF/16V ±20% 5*11 105C black 1 C102

8
GTO3501
Part Number Description Qty Reference Designator

MAIN PCB

06D212285101 CAP,Electro 2200UF/35V 16*26MM ±20% 105C 2 C124 C122
06D213389001 CAP,Electro 3300UF/63V ±20% 30*25 105C 2 C145 C144
06D212266010 CAP,Electro 22uF/50V ±20% 5*11 105C 8 C4 C5 C7 C9 C10 C13 C14 C204
06D212274001 CAP,Electro 220UF/25V ±20% 8*16 105C 3 C1 C2 C207
06D341849400 MET Capacitor 184/63V ±5% 1 C3
06D346849400 MET Capacitor 684/63V ±5% 1 C47
06D324737200 Capacitor 473/100V ±5% green 1 C24
06D321047200 Capacitor 104/100V ±5% green 3 C46 C211 C206
06D232207000 porcelin cap 22pF/100V ±20% green 2 C44 C42
06D235607000 Capacitor 56PF/100V ±20% 2 C202 C201
06D232217000 porcelin cap 220pF/100V ±20% 1 C38
C21 C20 C19 C18 C16 C15 C23 C48
06D231017000 porcelin cap 100pF/100V ±20% 9
C49
06D234717001 porcelin cap 470PF/100V ±20% 1 C37
06D234737001 Capacitor 473/100V ±20% 1 C205
06D236817000 porcelin cap 680pF/100V ±20% 2 C203 C200
C101 C121 C120 C118 C117 C115 C114
06D231047000 porcelin cap 0.1uF/100V ±20% 18 C100 C32 C30 C1B C1A C129 C128
C130 C131 C146 C147
06D321027200 Capacitor 102/100V ±5% green 1 C142
06D321037200 Capacitor 103/100V ±5% 2 C127 C126

Semiconductors

04PT-4148-04 diode 1N4148 GSS 200MA 75V DO-35 7 D100 D202 D208 D205 D204 D201 D200
04ZL-4004-03 diode 1N4004 DO-41 1 D111
04GS-C6A4-00 diode MIC6A4 1 D106
04WY-82AV104 diode schottky 8.2V DO-35 0.5W 1 DZ100
04GS-R104-00 diode FR104 1A 400V 4 D107 D108 D109 D110
03P1-B817-13 Transistor KTB817 PNP TO-3P 3 Q215,Q220,Q222
03N1-5551-01 Transistor 2N5551 NPN TO-92 4 Q212 Q211 Q210 Q1
03P1-5401-01 Transistor 2N5401 PNP TO-92 2 Q215 Q214
2SA1015 150MA 60V 400MW PNP TO-
03P1-1015-01 Transistor 2 Q108 Q107
92
03P1-B649-07 Transistor 2SB649A 1.5A 180V 20W PNP TO-126 2 Q217 Q218
03N1-669A-07 Transistor 2SD669A NPN TO-126 3 Q213 Q201 Q202
03P1-B647-01 Transistor 2SB647 1A 120V 0.9W PNP TO-92 1 Q200
03N1-1815-01 Transistor 2SC1815GR 150MA 60V 400MW NPN TO-92 6 Q122 Q209 Q208 Q102 Q101 Q100
03N1-1047-13 Transistor KTD1047 NPN TO-3P 3 Q204-Q206
01FA-7815-04 +15v Regulator KA7815E TO-220 FAIRCHILD 1 U100
01FA-7915-04 neg15v Regulator KA7915 TO-220 FAIRCHILD 1 U101
03N1-667A-01 Transistor 2SD667AC 1A 120V 0.9W NPN TO-92 1 Q216
03N1-8050-01 Transistor 8050D NPN TO-92 1 Q207
03T1-Z48N-02 MOS Transistor IRFZ48N TO-220 6 Q113 Q114 Q115 Q116 Q117 Q118
2004-0014-00 LED 3.0MM blue with blue light 1 LED100
2000-0017-00 LED red with red light 3MM 2P 1 LED101
01JR-4560-01 Dual Op-amp NJM4560D -8 4 U1 U2 U3 U4
2601-0202-00 OptoTransistor LCR-0202 1 R43
2202-1602-05 Rectifier UF1602CT AKA 16/200V TO-220 1 D114
2202-1620-05 Rectifier MUR1620CTA KAD 16A/200V TO-220 1 D115

Miscellaneous

1005-5R04-10 toroidal inductor 5UH 23 1.0*5 1 L1A
1380-0003-00 temp switch 90C KSD-301 1
1601-303G-00 fuse 30A/32V DC 2 F100
1404-0020-04 socket AV4-8.4-38 1 RCA1
1501-0209-00 socket Pitch 2.54MM 2PIN 2 CN104 CN105
1413-0001-00 phone socket 6P4C RJ11 HPCB-3021-6P4C black 1 JK1

9
GTO3501
Part Number Description Qty Reference Designator

MAIN PCB

1501-0300-02 terminal BTS3-24 1
1501-0400-01 terminal BTS4-23 1
40 4:15:8 F1=F2=0.8*12*4TS
3000-GT00-01 transformer S1=S2=0.8*6*15TS 1 L102
S3=S4=0.8*1*8TS
1401-0008-00 fuse holder 2PIN BXS2-09 1
PL-L0002-000 sheet ground GND-3 1
2PIN P=2.54MM 1007# 26AWG
2100-0083-02 wire 1 tem switch
L=85MM (A2501TOP-2)5MM 105C
PL-A0054-000 Alum. Bar with Insulated paper 2 14.0x7.0x64.0
PL-A0056-000 Alum. Bar with Insulated paper 2 14.0*7.0*64.0

PWM PCB

Resistors

0701-2221-03 SMD Resistor SMD 220 1/8W ±1% 0805 1 R17
0701-2101-03 SMD Resistor SMD 100 1/8W ±1% 0805 1 R10
0701-2102-03 SMD Resistor SMD 1K 1/8W ±1% 0805 6 R31 R30 R29 R28 R26 R15
0701-2302-03 SMD Resistor SMD 3K 1/8W ±1% 0805 1 R13
0701-2472-03 SMD Resistor SMD 4.7K 1/8W ±1% 0805 1 R11
0701-2682-03 SMD Resistor SMD 6.8K 1/8W ±1% 0805 2 R5 R51
0701-2562-03 SMD Resistor SMD 5.6K 1/8W ±1% 0805 1 R14
0701-2103-03 SMD Resistor SMD 10K 1/8W ±1% 0805 2 R1 R23
0701-2113-03 SMD Resistor SMD 11K 1/8W ±1% 0805 1 R27
0701-2123-03 SMD Resistor SMD 12K 1/8W ±1% 0805 1 R24
0701-2153-03 SMD Resistor SMD 15K 1/8W ±1% 0805 1 R53
0701-2183-03 SMD Resistor SMD 18K 1/8W ±1% 0805 1 R7
0701-2223-03 SMD Resistor SMD 22K 1/8W ±1% 0805 2 R18 R9
0701-2333-03 SMD Resistor SMD 33K 1/8W ±1% 0805 1 R65
0701-2334-03 SMD Resistor SMD 330K 1/8W ±1% 0805 1 R3
0701-2104-03 SMD Resistor SMD 100K 1/8W ±1% 0805 3 R25 R12 R4

Capacitors

06D211054104 CAP,Electro 1uF/25V ±20% 4*7 105C 1 C3
06D211074101 CAP,Electro 100UF/25V 6.3*7mm 5mm ±20% 105C 1 C27
06D212273001 CAP,Electro 220UF/16V ±20% 8*7 105C 5MM 1 C22
06D214764103 CAP,Electro 47UF/25V ±20% 6*7 105C 5mm 2 C1 C20
06S321026000 SMD Capacitor SMD 1000pF/50V 0805 NPO ±5% 1 C26
06S121046000 SMD Capacitor SMD 0.1uF/50V 0805 X7R ±10% 2 C4 C25

Semiconductors

04WY-39AV101 diode schottky SMD 3.9V DO-213AA 0.5W 1 ZD2
04WY-15BV-01 diode schottky SMD 15V 1/2W ±2% DO-213AA 1 ZD1
04PT-4148-01 diode SMD 1N4148 DO-213AA 6 D4 D1 D20 D3 D2 D13
03P1-1015-04 Transistor SMD 2SA1015 SOT-23 PNP 1 Q10
03P1-B649-07 Transistor 2SB649A 1.5A 180V 20W PNP TO-126 1 Q6
03N1-1815-04 Transistor SMD 2SC1815 SOT-23 NPN 4 Q3 Q2 Q7 Q1
01TI-L494-09 IC PWM SMD TL494C SO-16 1 U1
2SA1015 150MA 60V 400MW PNP TO-
03P1-1015-01 Transistor 2 Q9 Q8
92

Miscellaneous

1501-0409-02 socket PITCH 2.54mm 4PIN 90° 2 CN2 CN1




10
GTO3501
Part Number Description Qty Reference Designator

LED PCB

0701-3102-02 Resistor SMD 1K 1/4W ±5% 1206 8 R1 R2 R3 R4 R5 R6 R7 R8
2100-0067-02 wire 2PIN UL1007 AWG26 L=70mm 105 2
2100-0068-02 wire 2PIN UL1007 AWG26 L=210mm 105 1
LED1 LED2 LED3 LED4 LED5 LED6
2005-0009-00 LED LED 2*3*4mm 8
LED7 LED8
06S121046000 SMD Capacitor SMD 0.1uF/50V 0805 X7R ±10% 1 C1




11
GTO3501




12
GTO3501




13
GTO3501




14
GTO3501

1 2 3 4



R7 C4
18K 104

D1
D20 4148
D CN1 D
R10 CON4
4148 ZD1 100
15V 1 REM
R13 +12V 2 DC12V
3K 3 12V
R1 R11 Q6
Q1 10K 4 GND
4.7K B649
C1815
ZD2
3V9
R14 Q2
C1 C2
47/25V 7K5 C1815 10/25V +12
R25
100k
D2
C3 R53
1U/50V 15K R26




1K
Q10 4148
A1015 Q9




16


15


14


13


12


11


10
C A1015 C




9
R5
PRO 6K8 R30




OP2
R28




CON
-


REF




VCC
+




E2


E1
1K
D4 1K
4148
Q3
C1815
R18 C22 R23 R24 TL494CN U1 TL494
10K 12K
22K R3
330K
R29
220/16V


Q8




GND
1K




FED




OP1
A1015 R31




DT


C


R
+


-
R17 1K
220R




1


2


3


4


5


6


7


8
D3

C20 R4 4148
B 47/16V D13 B
100K 4148 C25
104
R65 C26 R9 C27
R51
33K R27 102/M 22K 100/25V
6K8
11K CN2
CON4
R12
100K 1 E2
2 E1
3 PRO LED
PRO 4 PRO

+12
R15 Q7
1K C1815




A REV DESCRIPTON Place DATA REV DESCRIPTON Place APPROVED DATA DW GNO:
A
PART NO:
PART NAME: SCALE: 1:1 DRAWN BY: JUNPING.LI DATA: 2007.12.05
POWER UNIT: MM CHECKED BY: DATA:
PRODUCT MODE: SIZE: A4 APPROVED BY: DATA:
JBL GTO-3501 REV: MV1

1 2 15 3 4
1 2 3 4 5 6 7 8




GTO3501

D D

+VCC



R202 C200
68R CC681/100V
R200
1K
Q200
B647
Q201 Q202 Q206 Q204 Q205
D669 D669 KTD1047 KTD1047 KTD1047

D202 D204
4148 4148
PRO
C201 D200 R227 R225 R226
CC56P/100V 4148 4.7R0.25W 4.7R0.25W 4.7R0.25W Q210
5551

R204 R207 C204 R208 C205 Q211 Q212 D201
2K2 220R W22U/50V 22K CC473 R220 C208
5551 5551 4148 C148 R159 Q122 Q208
LIN 270R/0.5W 100U/25V 3K C1815 C1815 2.2U/50V
R206
470K R222
C R217 C
2.2K Q213 C206 100R/0.5W
C207 Q209
R210 R211 D669 CL104 R236 R238 R249 R233 R234 R250 NP220U/26V C1815
22R 22R 0.15R/5W 1K5 1K5 0.15R/5W 0.15R/5W 1K5
R218
100K R215
6.8K
R214
Q207 6.8K
S8050
R150 R235
R205 -V1 56K
4.7K 56K CN200

MUTE 1
C211 2
+V1 R240 R209 3
470R 24K CL104
4
R216
6.8K
C209 R242
220U/25V 4.7R/0.5W
R223
R212 R213 100R/0.5W
22R 22R
R259 R252 R253 R260 R237 R241 R256 R239
0.15R/5W 1K5 1K5 0.15R/5W 0.15R/5W 1K5 15K 15K
B B
Q214 Q215
5401 5401 D205 D208
R221 4148 4148
270R/0.5W


C202
CC56P/100V R228 R229 R231
4.7R0.25W 4.7R0.25W 4.7R0.25W

Q216
D667
Q217 Q218 Q219 Q220 Q222
B649 B649 KTB817 KTB817 KTB817


R201
1K R203 C203
68R CC681/100V




-VCC


A A



REV DESCRIPTON Place DATA REV DESCRIPTON APPROVED DATA DW GNO:
Place
MV D1047 Q204 Q205 Q206 2007.07.19 MV1 KTD1047 Q204 Q205 Q206 2007.12.05 PART NO:
MV B817 Q219