Pioneer PDP-501MX Service Manual page 62

PDP-501MX, PDP-V501X
7
PD5435
(µ-CON ASSY : IC3703)
TV SYSTEM CONTROL µ-COM
¶ Pin Function
Pin No.. Pin Name
1 KEY2
2 P/CB OX
3 S2DET
4 PH
5 PV
6 Y OX
7 SCL
8 SDA
9 CLK2
10 DATA2
11 RTS
12 VOL
13 -
14 HDM
15 VDM
16 CTS
17 BUSY
18 *EMG P
19 EP RST
20 (E)SDA
21 (E)SCL
22 TXD
23 RXD
24 REM
25 KEY
26 (CNVSS)
27 (*RESET)
28 POWER
29 *S OX
30 (X IN)
31 (X OUT)
32 (VSS)
33 PLL_ULK
34 50/60
35 RGB SW1
36 ERR
37 PN RST
38 V MUTE
39 *LED GRN
40 *LED RED
41 *LED YLW
42 CLOCK
43 COL2
44 COL1
45 *SW3
46 *SW2
47 *SW1
48 *EWG U
49 *PN MUTE
50 PMV
62
I/O
I A/D key input
I Refer to separate sheet
I 0 to 1.3V:normal, 1.4 to 2.4V:letter box, 2.5 to 5V:squeeze
I SYNC polarity (H) for PC discrimination. When not input:L
SYNC polarity (V) for PC discrimination. When not input:L
I
I -
O I 2 C BUS data
2
I/O I C BUS clock
O Clock for serial 3 lines
Data for serial 3 lines
I/O
O Transmission request signal to C BOX
O AUDIO VOLUME 0.6V:MIN, 5V:MAX
- -
I SYNCK (H) for PC discrimination
SYNCK (L) for PC discrimination
I
I Transmission approval to C BOX
I Reception rejection signal from panel microprocessor
- NOT USED.
O EEPROM reset
I 2 C BUS data for EEPROM
I/O
2
O I C BUS clock for EEPROM
O Transmission to outside (169 C BOX, 43 PC)
I Reception with outside (169 C BOX, 43 PC)
I Remote control signal
Key scan input
I
- -
- -
O POWER ON/OFF
I S input:L/composite input:H
-
-
- -
- -
I/O PLL asynchronous state
O 50/60
BNC:H (RGB1)/Dsub:(RGB2)
O
I Communication NG from panel microprocessor
O Panel microprocessor reset signal
O Screen muting
O Green LED lighting
Red LED lighting
O
- Yellow LED lighting
- -
- -
- -
-
-
- -
- -
- NOT USED.
O Panel muting (NOT USED)
V SYNC when G ON SYNKCOMP SYNC
I
Pin Function