Read JBL GTO-3EZ Service Manual online
PGND
+12V
C28P
3300U
/25V
R59P
33K
33K
Q19P
5551
Q20P
5551
5551
R49P 68K
R50P 68K
R15P 10K
C47P
104/50V
C20P
104
P+12V
1
L1PA
L-4
Q2P
5401
Q3P
5401
R21P
1K
R22P
1K
+
1
-
2
FED
3
DT
4
C
5
R
6
GND
7
OP1
8
+
16
-
15
REF
14
CON
13
VCC
12
OP2
11
E2
10
E1
9
TL494CN
U2P TL494
+12V.D
R42P
100K
R46P
16K
C19P
102
R40P
24K
C23P
104
C24P
104
C46P
C104
C104
R36P
22K
22K
R43P
5.1K
5.1K
R39P
11K
C6P
104
Q4P
5551
5551
R14P18K
C5P
104
104
C1P
104
104
C7P
104
R5P
2.2K
R12P
4.7K
4.7K
Q1P
B649
B649
C2P
104
104
R13P
91K
91K
P+12V
P+12V
R1P
47K
Q5P
5551
5551
R44P
4.7K
4.7K
R3P
100K
100K
+12V.D
C16P
103
R32P
22R/ 1/2W
C17P
103
R33P
22R/ 1/2W
C51P
104
D17P RS1G
C48P
2200U
/35V
C49P
2200U
/35V
C8P
104
C9P
104
R10P
2.2K
2.2K
R11P
2.2K
Q26P
MMBT2222
D23P
IN4148
IN4148
R60P
56K
F1=F2=
ĭ0.5*20 4.5TS
S1=S2=
ĭ0.5*20 12.5TS
S3=
ĭ0.5*20 9.5TS
ĭ44.5
SD1
C36P
680PF/1KV
C37P
680PF/1KV
C38P
680PF/1KV
C39P 680PF/1KV
D21P
MUR1602
D19P
MUR1620
R37P
22K
22K
C3P
104
R8P
2.
2K
R6P
2.
2K
C30P
103
C31P
102
D4P
IN4148
D1P
IN4148
D5P
IN4148
S4=
ĭ0.5*1 8.5TS
-B
+B
D15P
6A10
C57P
N
P
100U
F/
25V
C18P
102
102
C15P
103
103
RT1P
80C
80C
R23P
1K
1K
2
2
1
1
F1PA
35A
4
4
3
3
F1PB
35A
R7P
2.2K
C52P
474/
100V
MT1P
MT
MT
MT2P
MT
MT
MT3P
MT
MT
MT4P
MT
MT
C10P
104
104
C11P
NC
NC
C12P
NC
NC
C13P
NC
NC
R53P 68K
Q14P
AT460
R26P
100R
100R
Q15P
AT460
R30P
100R
100R
1
1
3
3
2
2
CN1P
CON3-2
C29P
3300U
/25V
1
2
3
4
11
10
9
9
8
7
6
5
T1P
TR-37
C50P
104
C40P
2200U
/80V
C41P
2200U
/80V
C4P
104
C32P
680PF/1KV
C34P
680PF/1KV
C35P
680PF/1KV
C33P 680PF/1KV
D20P
MUR1602
D18P
MUR1620
C21P
104
C42P
330uF/35V
D16P
RS1G
RS1G
Vin
1
GND
2
Vout
3
U1P
L7812
C43P
10U/16V
C22P
104
+12VB
-VCC
COMA
-VCC
-VCC
+VCC
-VCC
R61P
75K
R20P
10K
C60P
220U/16V
220U/16V
C59P
104
+15V
Q21P
5551
5551
Q24P
5551
5551
RELOU
SD1
D8P
IN4148
D6P
IN4148
D7P
IN4148
COMA COMA
Q12P
AT460
R25P
100R
100R
Q13P
AT460
R29P
100R
100R
Q10P
AT460
R24P
100R
100R
Q11P
AT460
R28P
100R
100R
Q7P
5401
5401
R38P
15K
15K
C45P
105
Q9P
5551
R34P
220R
220R
R35P
22K
C44P
47U
D2P
IN4148
MT5P
MT
MT
C14P
NC
NC
+15V
C25P
104
C55P
220U
/16V
-15V
C26P
104
104
Q18P
C2073
C2073
ZD3P
12V
ZD2P
12V
R48P
2K
R47P
2K
2K
C53P
47U/25V
C54P 47U/25V
Q25P
A940
A940
Q22P
5551
5551
R16P
10K
10K
R17P
10K
Q8P
5401
5401
R18P
10K
R62P
1M
C61P
NP100U/25V
-15V
+15V
D22P
NC
NC
Q23P
5551
5551
R19P
10K
D14P
IN4148
R41P
100K
D3P
IN4148
Q6P
5551
5551
+12V.D
R9P
2.2K
2.2K
R45P
4.7K
4.7K
R4P
47K
47K
3
2
1
LED1P
RED
ZD1P
3.9V
3.9V
R54P
10K
R55P
10K
R58P
10K
D9P
4148
D10P
4148
D13P
4148
+15V
R2P
10K
TP10P
TP8P
TP1P
TP3P
TP5P
TP2P
TP4P
TP9P
R63P
10K
R64P
10K
10K
+VCC
C63P
NC
C64P
NC
1
1
2
2
ZD4P
NC
D24P
RS1G
2
2
1
1
3
3
Q27P NC
R27P
NC
J12V
D25P
RS1G
C62P
NC
POR1
R10PB
2.2K
2.2K
R11PB
2.2K
Q26PB
MMBT2222
D23PB
4148
4148
R60PB
47K
SD2
-VCC
D17PB
RS1G
R67P
NC
R65
10K
10K
R91
C56P
220U
/16V
C65P
47U/35V
C66P
47U
/35V
R86P
4.7K
4.7K
Q83P
5551
Q82P
5551
5551
R82P 68K
R83P 68K
R85P
22K
22K
C88P
NP100UF/
25V
R84P 68K
1
2
3
SW2A
SW2P2T
REM1
MUTE
MUTE1
PRO
MUTE1
SP5
MUTE1
PRO
SP5
FR+
FL+
FR+
FL+
FR OUT+
FL OUT+
SP5
C67
104
C70P
104
C71P
104
C18
100UF/16V
C19
22UF/16V
C23
22UF/16V
TP23
TP22
TP26
TP24
TP25
R65P
10K
D26P
IN4148
IN4148
D27P
IN4148
IN4148
1
2
3
4
5
6
7
2
3
4
5
6
7
CN2P
CON7
Schematic: Power Supply
GTO-3EZ
36
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