Pioneer PDP-505HD Service Manual page 40

PDP-505HD
Pin Function
Pin
Name
No.
1 S2_DET S2 Signal detection
OPTION Option Video Box detection
2
2 SCL I C-BUS Clock
2
3 SDA I C-BUS Data
4 V_DETI Result of Y signal detection
5 PN_BUSY BUSY signal from Panel U-Com
6 ––––– No allocation(not used)
7 CLK2 Clock output for Serial 3 lines
8 DATA2 Data output for Serial 3 lines
9 DTO_SU Serial data input from SYNC u-com
10 VOL Audio volume output
11 RST RET Reset Signal from Digital Video Assy
(Panel u-com and IP u-com)
12 ––––– No allocation (not used)
13 ––––– No allocation (not used)
14 CTS Not used
15 REQ_SU Request to read detected frequency from
SYNC u-com
16 RST_SU Reset Signal from SYNC u-com
17 EP_RST Reset output to E
18 BUSY2 Not used
19 SCL2 Not used
20 TXD RS-232C sending data
21 RXD RS-232C receiving data
22 REM Remote Control unit signal input
23 KEY Key Matrix, Key of the unit input
24 CNVSS Controlling operation mode of u-com of
the unit
25 *RST Reset input
26 POWER Power on/off
27 ––––– No allocation (not used)
28 X_IN Clock input
29 X_OUT Clock output
30 VSS Power supply terminal
31 SC_DT Detecting SYNC Signal output from Analog High: existence of Sync signal, Low: non existence
(ULK_PLL) Assy to Digital Assy
32 RTS Not used
33 RMT Signal of request to quit sending
commands from Panel u-com
34 PN_ERR Communication error signal from Panel u-com Low: Normal
35 *PN_RST Reset signal output to Panel u-com & IP u-com High: Normal, Low: In Reset
36 ––––– No allocation (not used)
37 *GRN Green LED lighting
38 *RED Red LED lighting
40
Function
0–1.3V: Normal, 1.4–2.4V: Letter Box, 2.5–5V: Squeeze
High: non existence, Low: existence of Video Box
0–5V clock signal: always communicating when power on
0–5V clock signal: always communicating when power on I/O
High: Y Signal detected, Low: Y Signal not detected
High: In exchanging input functions, Low: Normal
0–5V clock signal: always communicating when power on
0–5V serial signal: always communicating when power on
(both-way communication with Full Auto Zoom IC )
High: Normal, 0–5V serial signal: During communication
PWM output
High: Normal, Low: In Reset
High: Normal, Low: In requesting
High: Normal, Low: In resetting
2
PROM High: In resetting, Low: Normal
0–5V serial signal
0–5V serial signal
High: Normal, 0–5V serial signal: In input from Remote
Control unit
High: Normal, 0–5V serial signal: In Key input
Low: Normal
High: Normal, Low: In Reset
High: When power on, Low: In Stand-by
10 MHz sine wave
10 MHz sine wave
STB GND
Low: Normal
Low: In lighting Green LED
Low: In lighting Red LED
Operation of Terminals (during power on)
PDP- PDP- PDP-
I/O
502MX 502MXE 505HD
I ––
I –– ––
O
I
I
O
O
I
O ––
I
I
I
O
O
I
I
I
I
I
O
I
O
I
I
I
I
O
O
O