Block Diagram Of The Shutdown Signal; Diagnosis Of Sd (Shutdown) - Pioneer PDP-5020FD Service Manual

1

5.4 DIAGNOSIS OF SD (SHUTDOWN)

A

[1] BLOCK DIAGRAM OF THE SHUTDOWN SIGNAL

MAIN ASSY
B
IC5501
MN884350
C
IO ASSY
IC8101
RGB SW
IC8001
AV SW
I03
D
IC8201
MSP
IC8401
D-Amp
E
I04
TH7891
Temp. sensor
External
FAN
F
76
1
2
IC4901 IC4702
HDMI_RX VDEC
8
SCL_MB
SDA_MB
12
IC6001
BCM7404
12
8
U5301
AD-FE
IC5301
MPX
SCL_AV5
SDA_AV5
8
M12
5
OTW ANT_POW_DE
IC6811
IF_UCOM
M13
M5
PDP-5020FD
2
3
IC7004
EEPROM
15
8
2 =>1
SW
12
IC4801
ADC
8
5V ⇔ 3.3V
Converter
8
5
7 9
11
10
3
4
IC7003
EMMA2_UCOM
SCL_MA
SDA_MA
RXD_ARIA
TXD_ARIA
TXD_DT
RXD_DT
SCL_AV
TXD_MD
SDA_AV
RXD_MD
A_NG_B
TXD_IF
RXD_IF
CLK_IF
BUSY_IF
RST2
CE_IF
REQ_IF
RST4
TEMP2
FAN NG2
4