Read JBL GTR 104 Service Manual online
1
2
3
4
5
6
7
8
A
B
C
D
8
7
6
5
4
3
2
1
D
C
B
A
GAIN
min-max
crossover
power supply
1
2
GROUND
+12V
32Hz-320Hz 12dB/ oct
2
3
1
4
A
LO
Hi
Hi2
A2
A11
LP/HP pass
A12
2
3
1
4
A
HP
LP
FULL
2Ω/4Ω
LW/HI input
45kHz
320Hz
32Hz
10Hz
input selector
Controls
ON/OFF
A1
A1
Bluetooth
BM153
ADAS input
Line outpus
Class D Audio Power Amplifier
A13
S
D
G
S
D
G
Driver
Integrator
comparator
Clari-Fi
Bluetooth
social
1
2
4P
REM in
A10
A6
A3
A4
P1
P2
A14
Clari-Fi
BT
MCU
DSP
L/R
1
2
3
A
AIN*4
I2S for Music
OP
BT
Clari-Fi
MIC
REM out
Audio DET
FL
FR
RL
RR
ADAS Assign
3, 直按1秒开机,
盒子功能
1, 蓝牙配对
1, 蓝牙配对
2, Clari-Fi有效/直通,
3, 社交,
4, 接/挂电话,
5,开/关机，
3, 社交,
4, 接/挂电话,
5,开/关机，
A1是Hi输入自动
A5
A8
A7
A9
D4
D1
D2
P4A
ANT
MCU
WT51F108
P3
TPS70950
DC-DC
upgrade
OP
I2C
Only for Kappa
WM8281
STM8AF5288TC
Party Mode
phone ON
phone of
Phase
Party Mode
USB
A1
K1
A2
K2
power/protect
White/RED
crystal
D4
FLASH
protect
OP
MIC
A1
K1
A2
K2
power/protect
DIF F/R
White/RED
White Blue
White
White
Blue
White
amp
op
DC to DC
LDO
5V
MCU3.3V
LDO
DSP3.3V
LDO
AVDD+1.8V
DCVDD+1.2V by dsp ldo
AVDD+1.8V
BT3.3V
BT3.3V
Hi/LW prot
SPI
MCLK
F/R
mic Analog Speech
MCU UART
DSP3.3V
85C
OP(MIX)
L/R
OP
DFU
12.288M
A input
to SUB mute
FL DET
FR DET
RL DET
RR DET
ADC*4/5/2
MCU Debug
control box
OP
SPI
AD
AS
_OU
T
_
FR
ADAS
_
OUT
_
FL
AD
AS
_OU
T
_
R
L
AD
AS
_OU
T
_
R
R
DSP_OUT_FR
DSP_OUT_FL
DSP_OUT_RL
DSP_OUT_RR
FL
FR
RL
RR
OP
A15
LDO
12.288MHz
ADAS IN
BT IN
AUX IN
MIC IN
BT IN
AUX IN
MIC IN
Power ON/OFF
SET BLOCK DIAGRAM
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