Read JBL GTR 102 Service Manual online
GTR-102 Block Diagram
ANT
Audio Signal:
Power Signal:
Control Signal:
BM153
oscillator
MCUUART
MIC
MCLK
BM153
DSP
WM8281
I2SforMusic
LINEOUTPUT
upgrade
MCLK
AnalogforSpeech
DIF
WM8281
L
R
HI*2
MCU
SPI
MCUUART
LPF
L
R
OP
OP
OP
ADC*2
FOR LCD
FOR LCD
GAIN
DIF
DIF
SW
MCU
STM32F103C8
128K(105Ԩ)
ADAS
4Channel
AMP
S25FL132K
0XMFI011
SPI
Crossover
SPEAKER*4
FORLCD
control
box
Audio
DET(6V)
AudioDET
*4
ADAS
DCͲDC
3.3VMCU
SW
LDO
3.3VDSP
REMout
Rem in
MCU(TBD)
(105Ԩ)
HIlevelRem
Controlbox Rem
CD4053*2
Rotate
Switch
Switch
protection
1.2VDSP
Secondsidepower
4
HARMAN INTERNATIONAL. CONFIDENTIAL. COPYRIGHT 2014.
10minnoBTconnectandsignalinputwillintostandby
Power
+12V
AMP
OP
Rem
SW
3.3VBT
Remotein
Remoteout
Rem In
Primarysidepower
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