Pioneer PDP-V402 Service Manual page 106

PDP-V402
7.2 IC
M38869FFAHP (PD5620) (IC7002: CONTROL ASSY)
System Control Micro-computer
Pin Function
No. Pin Name I/O
1 OPTION I Terminal ASSY detection
2 2
2 I CCLK I/O I
2 2
3 I CDATA I/O I
4 N.C. I No Care (10kΩ pull down)
5 PD_TEMP I P.D. temperature detection input
L: When detection temperature of temperature sensor (2) (set ambient air temperature) is equal to or less than 65
H: When detection temperature of temperature sensor (2) (set ambient air temperature) is equal to or more than 65
H: Standby=POWER ON; 5msec, POWER ON=Standby; 50msec
6 FAN_TEMP I FAN temperature detection input
L: When detection temperature of temperature sensor (2) (set ambient air temperature) is equal to or less than 50
H: When detection temperature of temperature sensor (2) (set ambient air temperature) is equal to or more than 50
H: Standby=POWER ON; 5msec, POWER ON=Standby; 50msec
7 SPI_CLK O SPI clock output port
OSD, DAC control use (active low).
8 SPI_OUT O SPI data output port
OSD, DAC control use (active low).
9 HZ60_75 O Switching vertical frequency when VGA input
L: During standby, VGA@72Hz input, VGA@75Hz input, H: Other condition
10
N.C. I No Care (10kΩ pull down)
11
12 H_SYNC I H SYNC input
13 V_SYNC I V SYNC input
14 FAN_SW O Cooling FAN revolution speed control output
H: Detection temperature of temperature sensor (1) is equal to or less than 50 degrees
L: Detection temperature of temperature sensor (1) is equal to or more than 50 degrees
15 P_DOWN O P.D.output
H: Detection temperature of temperature sensor (2) is equal to or less than 65 degrees
L: Detection temperature of temperature sensor (2) is equal to or more than 65 degrees
16 N.C. I No Care (10KΩ pull down)
17 EP_RST O E
When u-com was reset, this port becomes high impedance, and E
18 BUSY2 O BUSY signal output in built-in flash memory renewal
19 SCL2 I Serial clock input in built-in flash memory renewal
20 SCI_TXD O RS-232C transmitted data output
RS-232C transmitted data (0-5V serial signal output)
21 SCI_RXD I RS-232C transmitted data input
SDA2 H: Normal, RRS-232C transmitted data (0-5V serial signal input)
22 REM_IN I Remote control code input port
0-5V serial signal input when remote control key input (active low)
166
H: Non existence, L: Existence
CBUS CLOCK L: During standby
CBUS DATA L: During standby
degrees in standby.
degrees.
degrees in standby
degrees
L: During standby
L: During standby
H.SYNC input for signal distinction (negative polarity)
V.SYNC input for signal distinction (negative polarity)
H: During standby
2
PROM reset cancel Always supply power source in E
H: Normal
¶ The information shown in the list is basic information and may
not correspond exactly to that shown in the schematic diagrams.
Description
Normally, input port
Normally, input port
Normally, L output
Data is decided by rise-up of clock.
Normally, L output
Data is decided by rise-up of clock.
H: During standby
2
PROM by Loutput.
2
PROM is reset
H: During notes, blanking
0-5V serial signal input
H: Normal
Serial clock input/output in built-in flash memory renewal