JBL GTO-504EZ Service Manual ▷ View online
INPUT LEVEL
min-max
crossover
power supply
1
2
3
GROUND
REM
+12V
bass boost
40Hz-200Hz 12dB/ oct
45Hz 0-12dB
2
3
1
4
A
LO
Hi
Hi2
PTC
simple LED(s)
Orange
Red
green
power(Orange)/protection(Red) LED
A5
2
3
1
4
A
HP
LP
Flat
FL+ out
2
ȍ/4ȍ
FL input
20kHz
200Hz
50Hz
20Hz
Class AB Audio Power Amplifier
input selector
variable crossover
INPUT LEVEL
min-max
crossover
40Hz-200Hz 12dB/ oct
6
7
5
8
B
LO
Hi
Hi2
PTC
LP/HP pass
2
3
1
4
A
HP
LP
Flat
FR- out
2
ȍ/4ȍ
FR input
20kHz
200Hz
50Hz
20Hz
Class AB Audio Power Amplifier
input selector
variable crossover
INPUT LEVEL
min-max
crossover
40Hz-200Hz 12dB/ oct
PTC
D1
LP/HP pass
2
3
1
4
A
HP
LP
Flat
RR- out
2
2
ȍ/4ȍ
RR input
20kHz
200Hz
50Hz
20Hz
Class AB Audio Power Amplifier
variable crossover
bass boost
45Hz 0-12dB
INPUT LEVEL
min-max
crossover
40Hz-200Hz 12dB/ oct
PTC
simple LED(s)
Orange
Red
green
LP/HP pass
2
3
1
4
A
HP
LP
Flat
RL+ out
2
ȍ/4ȍ
RL input
20kHz
200Hz
50Hz
20Hz
Class AB Audio Power Amplifier
variable crossover
1
2
3
A
input mode
2ch
4ch
RL in
RR in
RL in
A9
switch
switch
switch
FUSE
2
3
1
4
A
LO
Hi
Hi2
input selector
switch
6
7
5
8
B
LO
Hi
Hi2
input selector
switch
L OUTPUT
FL
FR
FL
RR in
R OUTPUT
FR
OP
OP
AUTO ON/OFF
FLA
FRA
FLA
FRA
GTO-504EZ
25
PLACE NO
DESCRIPTON
DATA
C
36P
105
C23P
104
ZD3P
15V
ZD2P
15V
15V
C24P
104
104
R38P
4K7
4K7
R12P
2K7
R10P
2K7
C33P
100U/25V
C
34P
100U
/25V
C
35P
105
R14P
1K
R15P
1K
+
1
-
2
FED
3
DT
4
CT
5
RT
6
GND
7
OP
1
8
E1
9
E2
10
OP
2
11
VC
C
12
13
RE
F
14
-
15
+
16
U1P
TL494
R47P
100K
R50P
15K
C40P
102
R43P
10K
C25P
104
C41P
104
104
R4P
11K
Q11P
2SA1015
C17P
225
R39P
47K
Q4P
2SC1815
R22P
10K
10K
C15P
104
C16P
104
R16P
47K
R18P
2K2
R19P
4K3
D11P
1N4148
1N4148
C14P
104
R21P
62K
ZD1P
3V9
R20P
6K8
C42P
226
D12P
1N4148
D13P
1N4148
C43P
226
Q12P
2SC1815
R49P
100K
R48P
100K
R51P
2K2
R45P
100K
R46P
100K
Q13P
2SC1815
R52P
2K2
D14P
1N4148
Q8P
2SA1015
Q7P
2SA1015
R11P
2K7
2K7
+15V
-15V
R40P
2K
Q5P
2N5401
C19P
104
D20P
RS1G
D19P
RS1G
D17P
RS1G
D18P
RS1G
R8P
2K7
2K7
R9P
2K7
2K7
R26P
10K
C6P
102
C7P
102
C8P
102
C9P
102
R42P
12K
12K
+12VD
R57P
75K
R58P
10K
R6P
1K
1K
D25P
IN4148
C4
P
N
P
10uF
/50V
D24P
IN4148
MUTE
R75P
3K9
R3P
10K
10K
M5P
K117
Q14P
2SB649
Q10P
2SD669
P+12V
R56P
22R
22R
C61P
102/500V
C
52P
3300U
/35V
C
53P
3300U
/35V
1
2
3
J2P
JSZ3-64C
R27P
2K2
2K2
R28P
2K2
PGND
REM
+12V
R29P
47R
47R
R30P
47R
C21P
W4700/25V
R31P
47R
47R
C29P
103
R33P
22R
22R
R32P
47R
47R
C30P
103
R34P
22R
R2P
10K
C20P
NC
C13P
104
C18P
104
104
C58P
104
P+12V
C26P
NC
GREEN
1
2
F1PA
20A
3
4
F1PB
20A
C60P
NC
+BATT
C44
104
C45P
104
C59P
NC
REM
R53P
10K/1W
R54P
10K/1W
C
56P
CBB 474/
100V
F1
C46P
104
104
C47P
104
R36P
22R
C32P
102
102
C49P
102/500V
C48P
102/500V
102/500V
C50P
102/500V
102/500V
C51P
102/500V
102/500V
ESD2P
NC
ESD1P
NC
C1P
104
104
C2P
104
104
C3P
102
C10P
103
+VCC
-VCC
1
2
L1P
JD2010
1
4
5
8
3
2
9
11
7
6
10
T1P
T-36
T-36
D23P
F16A20
D22P
F16C20
M1P
AOT460
M3P
AOT460
M2P
AOT460
M4P
AOT460
LED1P
RED
D2P
6A10
6A10
1
2
J3
CN2P-2.5
CN2P-2.5
PROT
C65P
104
+15VL
C64P
104
+15VS
C11P
104
104
C57P
104
104
C
62P
220U
/16V
C
63P
220U
/16V
SG-ON
TP2
TP3
TP5
TP7
TP10
TP11
TP12
TP13
TP14
PR
O
T
5
6
4
SW2B
110103000002
R5P
220R
C54P
104
104
C20F
104
R13P
120K
120K
M6P
K117
Q1P
2SC1815
C5P
47uF/16V
R7P
22K
D1P
1N4148
1
2
J12A
NC
1
2
J11A
NC
J50A
60MM
J50B
60MM
C
28P
105/
63V
R1P
600R/100M
C66P
102
102
C67P
102
C68P
102
102
D26P
RS1G
C69P
100U/25V
C70P
104
Vin
1
GND
2
Vout
3
U4P
LM7815
C71P
10U/25V
C72P
104
+15VL
5
6
4
SW6B
110103000064
2
3
1
SW6A
110103000064
P+12V
P+12V1
R23P
10K
D27P
IN4148
R24P
220R
220R
Q2P
NC
GTO-504EZ
26
R42A
22K
C18A
101
101
R46A
10K
R56A
10K
R47A
10K
R55A
10K
ESD1A
NC
ESD2A
NC
NC
LOW AL
HI2 AL
HI1 AL
C19A
NP 22uF/50V
C27A
47P
HI2 BL
HI1 BL
LOW BL
C14A
NC
R41A
56K
56K
C16A
104
FL
FL+INPUT
3
2
1
U1A
4580
A1
A2
3
4
J1B
AV6-8.4-13A
C31A
101
RCA
-P
RO
R48A
56K
R50A
56K
R52A
0R
R53A
0R
R
43A
120R
R42B
22K
C18B
101
R46B
10K
R56B
10K
10K
R47B
10K
R55B
10K
ESD1B
NC
ESD2B
NC
NC
LOW AR
HI2 AR
HI1 AR
C19B
NP 22uF/50V
C27B
47P
HI2 BR
HI1 BR
LOW BR
C14B
NC
R41B
56K
C16B
104
104
FR
FR-INPUT
5
6
7
U1B
4580
1
2
J1A
AV6-8.4-13A
R84
470R
C25
104
104
R6
5K6
5K6
PROT
RCA
-P
RO
C31B
101
3
4
1
2
U3P
TLP181
TLP181
R48B
56K
R50B
56K
R52B
0R
R53B
0R
R
43B
120R
RCA-PRO
R42C
22K
C18C
101
101
R46C
10K
R56C
10K
R47C
10K
R55C
10K
ESD1C
NC
NC
ESD2C
NC
NC
LOW CL
HI2 CL
HI1 CL
C19C
NP 22uF/50V
C27C
47P
HI2 DL
HI1 DL
LOW DL
C14C
NC
R41C
56K
C16C
104
RL
3
2
1
U2A
4580
C31C
101
RCA
-P
RO
R48C
56K
R50C
56K
R52C
0R
R53C
0R
R
43C
120R
R42D
22K
C18D
101
R46D
10K
R56D
10K
10K
R47D
10K
R55D
10K
ESD1D
NC
ESD2D
NC
LOW CR
HI2 CR
HI1 CR
C19D
NP 22uF/50V
C27D
47P
HI2 DR
HI1 DR
LOW DR
C14D
NC
R41D
56K
C16D
104
104
RR
5
6
7
U2B
4580
C31D
101
R48D
56K
R50D
56K
R52D
0R
R53D
0R
R
43D
120R
5
6
J1C
AV6-8.4-13A
7
8
J1D
AV6-8.4-13A
2
3
1
SW3A
110103000002
5
6
4
SW3B
110103000002
FL+INPUT
FR-INPUT
9
10
J1E
AV6-8.4-13A
11
12
J1F
AV6-8.4-13A
R1H
100K
100K
C1H
101
101
C3H
10uF/25V
R3H
1K
C4H
10uF/25V
R4H
1K
R2H
100K
100K
C2H
101
101
R-OUT
L-OUT
R5H
47K
R9H
47K
R7H
47K
RL
R6H
47K
R8H
47K
RR
R10H
47K
FR-INPUT
3
2
1
U1HA
4580
5
6
7
U1HB
4580
2
1
ESD1H
NC
NC
2
1
ESD2H
NC
NC
C5H
101
101
C6H
101
101
110103000061
SK83D02
19
18
20
17
SW1E
SW8P3T
23
22
24
21
SW1F
SW8P3T
27
26
28
25
SW1G
SW8P3T
31
30
32
29
SW1H
SW8P3T
3
2
4
1
SW1A
SW8P3T
7
6
8
5
SW1B
SW8P3T
11
10
12
9
SW1C
SW8P3T
15
14
16
13
SW1D
SW8P3T
C21A
106
106
C22A
106
106
C21B
106
C22B
106
C21C
106
C22C
106
C21D
106
C22D
106
A3
A4
TP15
TP16
TP17
TP18
TP19
TP20
TP21
TP22
TP23
TP24
TP25
TP26
TP27
TP32
TP33
TP34
TP35
TP36
TP37
TP38
TP39
TP40
TP41
TP42
TP43
TP45
TP46
RL+INPUT
RR-INPUT
TP44
TP47
8
4
U1C
4580
8
4
U2C
4580
+15V
-15V
C13C
104
C12F
104
C11F
104
C6C
104
8
4
U1HC
4580
1
3
5
7
9
11
2
4
6
8
10
12
J5A
NC
FLI
RLII
FL+IN
RL+IN
FRI
RRII
FR-IN
RR-IN
RL+INPUT
FL+INPUT
FLI
RLII
-15V
RR-INPUT
FR-INPUT
FRI
RRII
1
3
5
7
9
11
2
4
6
8
10
12
13
14
J8A
CON2*7P
+15V
R1
A
10K
R2
A
10K
R1
B
10K
R2
B
10K
D4
1N4148
+15VS
FRS
FLS
RRS
RLS
1
3
5
7
9
11
2
4
6
8
10
12
13
14
J4A
NC
REM
PGND
A2
+15V
P+12V1
SG-ON
-15V
A1
A4
A3
1
1
3
3
2
2
4
5
6
7
J10A
CON7P-2.0
FL+INPUT
GTO-504EZ
27
PLACE NO
DESCRIPTON
DATA
-
R20C
10K
C8C
47P
R25C
9K09
R22C
9K09
R26C
11K
C10C
473
R27C
11K
C11C
104
R21C
10K
C9C
102
R17C
680R
680R
3
2
1
U8A
TL074
5
6
7
U8B
TL074
13
12
14
U8D
TL074
10
9
8
U8C
TL074
R15C
1K
R16C
2K4
2K4
R20D
10K
C8D
47P
R25D
9K09
R22D
9K09
R26D
11K
C10D
473
R27D
11K
C11D
104
R21D
10K
C9D
102
R17D
680R
680R
3
2
1
U10A
TL074
5
6
7
U10B
TL074
13
12
14
U10D
TL074
10
9
8
U10C
TL074
R15D
1K
R16D
2K4
11
4
U7E
TL074
8
4
U14C
TL072
+15V
-15V
11
4
U8E
TL074
8
4
U12C
TL072
4
5
6
VR2B
B20K
B20K
1
2
3
VR2A
B20K
B20K
1
2
3
VR4A
C50K
4
5
6
VR4B
C50K
7
8
9
VR4C
C50K
C50K
10
11
12
VR4D
C50K
4
5
6
VR5B
B20K
C30D
154
R28D
1K
R36D
20K
C17D
101
R34D
1K
R35D
4K7
R37D
1M
1M
C31F
183
3
2
1
U14A
TL072
6
5
7
U14B
TL072
C30C
154
R28C
1K
R36C
20K
C17C
101
R34C
1K
R35C
4K7
R37C
1M
1M
C31E
183
3
2
1
U12A
TL072
6
5
7
U12B
TL072
1
2
3
VR5A
B20K
B20K
LPF3
FLAT3
HPF3
HPF4
LPF4
FLAT4
RL+INPUT
R20A
10K
C8A
47P
R25A
9K09
R22A
9K09
R26A
11K
C10A
473
R27A
11K
C11A
104
R21A
10K
C9A
102
R17A
680R
680R
3
2
1
U7A
TL074
5
6
7
U7B
TL074
13
12
14
U7D
TL074
10
9
8
U7C
TL074
R15A
1K
R16A
2K4
1
2
3
VR1A
B20K
B20K
4
5
6
VR3B
C50K
1
2
3
VR3A
C50K
C50K
FLAT1
LPF1
HPF1
R20B
10K
C8B
47P
R25B
9K09
R22B
9K09
R26B
11K
C10B
473
R27B
11K
C11B
104
R21B
10K
C9B
102
R17B
680R
680R
3
2
1
U9A
TL074
5
6
7
U9B
TL074
13
12
14
U9D
TL074
10
9
8
U9C
TL074
R15B
1K
R16B
2K4
4
5
6
VR1B
B20K
B20K
10
11
12
VR3D
C50K
7
8
9
VR3C
C50K
C50K
FLAT2
LPF2
HPF2
FR-INPUT
FL+INPUT
RR-INPUT
11
4
U9E
TL074
11
4
U10E
TL074
HPF1
FLAT1
LPF1
FLI
FLI
FRI
RLI
RRI
1
2
3
4
9
5
6
7
8
10
CN1H
NC
HPF2
FLAT2
LPF2
FRI
HPF3
FLAT3
LPF3
RLI
1
2
3
4
9
5
6
7
8
10
CN2H
NC
HPF4
FLAT4
LPF4
RRI
R19A
NC
R19B
NC
R19C
NC
R19D
NC
R29D
47K
47K
R29C
47K
47K
C12A
101
C12B
101
C12C
101
C12D
101
R29A
47K
47K
R29B
47K
47K
R30C
47K
47K
R30D
47K
47K
FLI
FRI
RLII
RRII
RL+INPUT
FL+INPUT
FLI
RLII
-15V
RR-INPUT
FR-INPUT
FRI
RRII
1
3
5
7
9
11
2
4
6
8
10
12
13
14
J8B
CON2*7P
+15V
GTO-504EZ
28
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