Bang & Olufsen BeoLab 17, Service Manual

Page: 57 / 72

6.1 6.1 Block diagram Block diagram 6.1
Block diagram
PWR_NTC
PS_ON
MAINS_FAIL
+5V_SB
GND
GND
-15V
+15V
Power
Power
P1
NTC
P3
P3
P3
P3
P3
P5
POWER
+15V
GND
+28V
-15V
-28V
Power
P4
NTC1
GND
NTC
P1
MIC2_P
GND
MIC1_N
LED Indicator LED Indicator
P1
LED_3_R
LED_2_O
LED_1_W
LED_4_G
Power
Power
P2
P2
Power
POWER LINK
TOSLINK IN
TOSLINK OUT
LINE IN
SERVICE
POWER LINK
TOSLINK_GND
TOSLINK_OUT
TOSLINK_IN
Connector
ATI_TX
ATI_RX
ATI_ON_N
3V3
3V3_SB
GND
PL_GNDA
PL_LEFT
PL_RIGHT
Connector
LINE_RIGHT
LINE_GND_SENSE
LINE_LEFT
PL_GNDD
PL_ON
PL_DATA
LINE_IN_IMP
BUTTON1
S2_FREE
PRODUCT_ID1
S2_CORNER
S3_LEFT
S3_OTHER
S2_WALL
PRODUCT_ID1
GND
S3_RIGHT
P102
P101
Connector
P2
Connector
P1
Amplifier
P1
P3
Amplifier
CH1_P
NTC1
CH2_N
AMP_EN_N
CH2_P
MONITOR1
CH1_N
GNDA
MONITOR2
CH3_P
MONITOR3
DC_ERR_N
CH4_P
MONITOR4
CH4_N
CH3_N
DSE_GND1
DSE_GND2
P4
SD0
UART_TX
GND
Wireless Power Link Rx
nLINK
nHEARTBEAT
PING1
UART_RX
SCLK
LRCLK
nAMP_ERR
nDET0
SCL
nMUTE
nRESET
SDA
1V2
nSLEEP
PING0
nDET1
3V3
P7
Wireless Power Link Rx
P7
Tweeter
Woofer
PCB30, Digital Sound Engine
PCB04, Power Supply
PCB48, NTC
PCB47, LED Indicator
PCB02, Connector
PCB35, Amplifier
PCB89, Wireless Power
Link Rx
A MUX
MUX
B MUX
Diff.
AMP
Diff.
AMP
Diff.
AMP
Diff.
AMP
ADC DAC
ADC
UNBAL
to
BAL
DAC
Filter
DSP
FEP EMC
DC/DC
CON _PWR_CTRL
+15V
3V3_SB_CON
3V3_CON
-12V
3V3_SB
5VA
3V3A
3V3_WL
1V2_WL
5V_USB0
5V_USB1
3V3
1V2_DISP
2V5_REF_SB
12V
-15V
+5V_SB
Calibration
Generator
Gain 0dB
ATI Level
Line sense
MONITOR1
CAL
MIC1
MONITOR2
MONITOR3
MONITOR4
CAL
MIC2
+5V_SB
CAL
LINE_SENSE_PL
TRAINING
LINE_SENSE_LINE
Gain 20dB
Gain 0dB
Gain 20dB
ADC_2L
ADC_2R
ADC_1R
ADC_1L
ADC2
ADC3
ADC1
ADC0
CODEC_RESET_N
CODEC_RESET_N
DAC_RESET_N
DAC
ADC_MUX
LED_2_O
LED_3_R
LED_4_G
LED_1_W
FEP_ATI_RX
ATI_ON_N
ADC_TD
M
SPI_A
DAC_TD
M
FEP_ATI_TX
CODEC_RESET_N
DAC_RESET_N
LINE_SENSE_LINE
LINE_SENSE_PL
UART_TX
UART_RX
AUDIO_MUX_SEL
ADC_MUX_AX
TOSLINKK_OUT
TOSLINKK_IN
AUDIO_MUX_SEL
ADC_MUX_AX
PL_ON
PL_DATA
PL_DATA
PL_ON
WAKE_ON_SPDIF
3V3_SB 3V3
PWR_NTC
PWR_NTC
FLASH
3V3
SCLK
SD0
LRCLK
PS_ON
ROLE/POS.
SWITCH
MAINS_FAIL
PS_ON
MAINS_FAIL
NTC1
AMP_EN_N
DC_ERR_N
ROLE/POS. SWITCH
3V3_SB
3V3
1V2_DISP
5VA 5VA
3V3A