7.3. Automatically shutdown during operation
Automatically shutdown during operation
y g
Confirm
Connector between
SMPS PCB and AMP PCB.
Recovered by disconnection and connection?
Damaged (no connection)?
NO
Replace AMP PCB.
YES
Confirm
FFC between
AMP PCB and Main PCB.
Recovered by disconnection and connection?
Damaged (no connection)?
NO
Replace FFC.
YES
Confirmation of Thermistor (TH1501) on SMPS PCB.
Disconnect
connector between P1501
to AMP PCB.
Is the correct value of resistor between
Pin 2 and 7 of P1501?
Correct value: 100 to 120 Kohm
Open or Short
YES
Replace SMPS PCB.
Disconnect
Speaker unit from SU-G700.
Is the Symptom still appear.
NO
YES
Replace speaker cable or confirm Speaker unit.
Replace
AMP PCB to new one.
Is the Symptom still appear.
NO
YES
Replace AMP PCB.
+3.3 V
can be measured at following
points?
PDET_A
DAMP_SD
DAMP_DC__DET
DAMP_OVR_TMP
PDET_M
NO
Replace Main PCB.
Main Micon
IC7001
150KR7004
R7001
100K
F1H1C474A178
C7008
10KR7023
R7010$
R7020 33
4.7K
R7213
100R7024
R7236 100
100k
R7009
1kR7043
100
R7224
CL7049
CL7048
CL7039
CL7050
F1H1H104B047
C7001
PDET_M
DAMP_OVR_TMP
J0JBC0000010
R7002
100K
X7002
H0J327200172
R7022100
31
2
H2D400400018
X7001
C7003
F1H1H3R0B050
C7004
F1H1H3300005
REM_IN
PDET_A
DAMP_SD
SOC_SPI_DO
SOC_SPI_DI
SOC_SPI_CLK
PW_SYNC
DAMP_DC_DET
R7003
1M
86
5 7
42
1 3
D1H81014A042
RX7001
8 6
57
42
13
RX7006
D1H81014A042
DEBBUG_CNVSS
OLED_NRST
10
8
7
9
12
11
4
6
5
2
1
3
19
17
15
14
16
18
23
21
20
22
24
25
13
To SoC
To Audio Selector
To Audio Selector
P9_3/DA0
P9_2/SOUT3
AVCC
VREF
P10_0/AN0
P9_4/DA1
1
P9_0/CLK3
BYTE
P9_1/SIN3
XRESET
[21]P7_7/CLK5
[25]P7_3/XCTS2/XRTS2
[23]P7_5
[22]P7_6/TXD5/SD5
[24]P7_4
XIN
VCC1
P8_3/INT1
P8_5/XNMI/XSD
P8_4/XINT2/ZP
VSS[19]P8_1/XCTS5/XRTS5
[20]P8_0/RXD5/SCL5
P7_2/CLK2
P6_6/RXD1/SCL1
P6_7/TXD1/SDA1
P6_5/CLK1
P8_2/INT0
P7_0/TXD2/SDA2/SDAMM
P7_1/RXD2/SCL2/SCLMM
TUOX
NICX/7_8P
SSVNC
[99]P9_6/SOUT4
[100]P9_5/CLK4
[98]P9_7/SIN4
P8_6/XCOUT
NO
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