Pioneer PDP-4280HD

PDP-4280HD
67
5
6
7
8
56
7
8
C
D
F
A
B
E
5.4 DIAGNOSIS OF SD (SHUTDOWN)
5.4.1 BLOCK DIAGRAM OF THE SHUTDOWN SIGNAL
Block Diagram of the Shutdown Signal
Note : The figures  to  indicate the number of times the LED flashes when shut-down occurs in the corresponding route.
MAIN ASSY
I2C UART 3-wire serial Abnormal notice line Monitor line
Others
TANSHI ASSY
SENSOR ASSY
DIGITAL ASSY
TH9091
Temp. sensor
IC8401
EMMA2_ucom
IC8301
IF_ucom
15
8
8
8
8
8
12
12
121212
11
10
5
5
97
7
13
13
6
4
1 1
1
1
1
3
2
2
MODULE_ucom
IC3151
IC8001
ARIA
FAN NG
TEMP2
TXD_IC3
RXD_IC3
REQ_IC3
IC9101
MSP
IO3
M6
M4
M8
M1
TXD_MD
RXD_MD
REQ_MD
A_NG_B
RST4 RST2
USB
Power
OVP
Block
FAN
IC9201
D-Amp
IO4
IC4801
VDEC
SCL_AV SDA_AV
SCL_AV5 SDA_AV5
SCL_MA SDA_M
IC5001
ADC
IC5201
HDMI_RX
IC8404
EEPROM
U6001
A-FE
IC4601
AV SW
IC4701
RGB SW
SCL_MB SDA_M
TXD_IF RXD_IF CLK_IF BUSY_IF CE_IF REQ_IF
OTW
ANT_POW_DE
V+12V
V+6_5V
V+5_1V
IC8406
AND-Gate
IC4403
3chDC-
EMG_DDC
IC8406
AND-Gate
V+3_3V_D4
EMG_USB
IC6001
MPX
U6101
AD-FE
IC6301
BCM3517
IC6401
BCM7038
TXD_DT RXD_DT
IC7302
POD Interface
IC6903
EEPROM
IC7001
TV-G slicer
D11
IC3401
SQ_ASIC
IC3160
MONO
MULTI
TXD_SQ RXD_SQ CLK_SQ CE_SQ BUSY_SQ
IC3303
AND
IC3302
3.3V_RST_IC
IC3156
EEPROM
IC3651
SENSOR
IC3652
EEPROM
IC3157
DAC1
RST2
SQ_NON
TEMP
SCL SDA
E_SCL E_SDA
D24
TE1
PSIZE
IC3158
DAC2
STOP_SQ
FU3601
IC3602
3.3V_DDCON
MODEL
5V ⇔ 3.3V
Converter
2 => 1
SW
12V_FUSE