Pioneer PDP-502MX Service Manual page 41

Pin
Name
No.
39 *YLW Yellow LED lighting
40 I_DET Not used
41 IP_BUSY BUSY signal from IP u-com
42 IP_ERR Communication error signal from IP u-com
43 VPOL_U Not used
44 V_MUTE Analog video mute output
2
45 (E) SCL I C-BUS Clock for E
2
46 (E) SDA I C-BUS Data for E
47 *PN_MUTEX X Drive Panel mute output
48 *PN_MUTEY Y Drive Panel mute output
49 *V_STDO Not used
50 STDSW Not used
51 *PN_CE Chip Enable for Panel u-com & IP u-com
52 *PLL_CE Chip Enable for PLL IC
53 *OSD_CE Chip Enable for OSD IC
54 HPOL_U Not used
55 PGM_OE Not used
56 *PLD_CE Chip Enable for PLD (Analog Video Assy)
57 *SU_CE Chip Enable for SYNC u-com
58 *ZOOM_CE Chip Enable for Full Auto Zoom IC
59 *A_MUTE1 Audio Mute 1
60 *A_MUTE2 Audio Mute 2 Muting audio out
61 FAN_MAX Command to rotate Fan with max. speed
62 A_MUTE3 Audio Mute 3 Mute in suspending
63 *OSD_CLR Reset signal output to OSD IC
64 OSD_H OSD Timing Pulse for SYNC processing
65 ––––– No allocation (Not used)
66 DRV_OFF Not used
67 *CB_MUTE Combination Mute
68 REMSW Not used
69 PLK_ID Not used
70 ––––– No allocation (not used)
71 VCC Power source input
72 VREF Reference voltage input of AD/DA Converters
73 AVSS Analog power input of AD/DA Converters
74 S_D Shut down detection for high temperature
75 TEMP2 Not used
76 TEMP Temperature detection for On screen bar display
77 ––––– No allocation (Not used)
78 ––––– No allocation (Not used)
79 ––––– No allocation (Not used)
80 PM_ST Not used
Function
Low: In lighting Yellow LED
High: At the timing of VD SYNC
Low: Normal
High: When muting, Low: Normal
2
PROM High: Normal, 0–5V clock signal: During communication
2
PROM High: Normal, 0–5V serial signal: During communication I/O
High: Normal, Low: When muting
Fixed "High"
High: Normal, Low: During communication
High: Normal, Low: During communication
(Approx.80ms interval)
High: Normal, Low: During communication
High: Normal, Low: During communication
(Approx.80ms interval)
High: Normal, Low: During communication
High: Normal, Low: During communication
High: Normal, Low: When muting
High: Normal, Low: When muting
High: In setting Fan max. speed, Low: Normal
High: When muting, Low: Normal
High: Normal, Low: In resetting
Pulse input
High: When ID is set, Low: Normal
STB +5V
STB +5V
STBGND
High: In high temperature, Low: Normal
0–5V DC value
PDP-502MX, PDP-502MXE
Operation of Terminals (during power on)
PDP-
PDP- PDP-
I/O
502MX 502MXE 505HD
O
I
I
O
I/O
O
O
O
O
O –– ––
O
O
O –– ––
O ––
O ––
O
O ––
O ––
I –– ––
O ––
I
I
I
I
I
41