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Diagnosis Of Sd (shutdown) - Pioneer krp-m01 Service Manual

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5.4 DIAGNOSIS OF SD (SHUTDOWN)

A
[1] BLOCK DIAGRAM OF THE SHUTDOWN SIGNAL
Note : The figures 1 to f indicate the number of times the Blue
LED flashes when shut-down occurs in the corresponding
route. c LED is not flashed.
MAIN BLOCK ASSY
B
IC8102
CIMAX
IC4503
LNB
C
U5201
DVB_S2-FE
U5301
DVB_T-FE
D
E
KEY ASSY
TH9401
Temp. sensor
FAN
F
60
1
2
IC4901
IC4701
HDMI_RX
VDEC
SDRAM
8
12
12
IC5201
S2DEMOD
12
IC5401
COFDM
SCL_TU
SDA_TU
12
8
I2C
SW
IC5501
RGB SW
IC5101
AV SW
IC5801
MSP
IC4304
ANT POWER
K1
M2
M31
2
3
IC4702
IC7602
VDEC
DP Tx
8
8
8
SCL_MB
SDA_MB
IC6001
BCM7404
7404_I2C3_SCL
7404_I2C3_SDA
7404_I2C2_SCL
7404_I2C2_SDA
7404_I2C1_SCL
7404_I2C1_SDA
8
SCL_AV5
8
SDA_AV5
5V⇔3.3V
converter
5
8
IC6811
IF_ucom
12
ANT_POW_DET
11
TEMP2
10
FAN_ NG2
KRP-M01
3
4
IC7004
EEPROM
IC7003
EMMA2_ucom
15
SCL_EEP
SDA_EEP
SCL_MA
2 => 1
SDA_MA
SW
12
TXD_DT
RXD_DT
IC4801
ADC
8
SCL_AV
SDA_AV
TXD_IF
7
9
RXD_IF
CLK_IF
BUSY_IF
CE_IF
REQ_IF
4

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