Pioneer PDP-V402 Service Manual page 107

No. Pin Name I/O
23 KEY_IN I Main key input port
0-5V serial signal input when main key input (active low)
24 CNVSS u-com operation mode control
25 *RST Reset input
Reset input (Keep L level more than 2msec power supply voltage is 4.0-5.5V and when Xin oscillation constantly)
26 POWER O POWER ON/OFF PORT L: During standby
27 N.C. I No Care (10kΩ pull down)
28 X_IN Clock input
29 X_OUT Clock output
30 VSS Power supply input
31 N.C. I No Care (10kΩ pull down)
32 MASK_COL O NTSC masking color assignment L: During standby
H: In masking color ashes setting to go up and down in NTSC signal input, L: Other condition
33 DHIZASEL O Dither ON/OFF switching port
L: Standby, MP mode off, INPUT1, 2 select
34 PNELBUSY I Panel u-com BUSY input
H: In panel u-com reception processing state, command processing condition (Command, downlink impossibility)
L: In panel u-com command information desk condition (Command, downlink are possible)
35 PNEL_CEB O Panel micon data output enable output
L: During standby, communication, H: Normal
36 D_POWER I Panel drive OK input (Not used)
37 LED_POW O Power ON status display LED output
38 LED_STB O Power standby status display LED output
39 N.C. I No Care (10kΩ pull down)
40 V_MUTE O Analog video mute output
L: During standby, switching function, VIDEO mute
H: Normal, VIDEO, Y/C input, RGB1, RGB2 input, VIDEO mute off
41 HZ50_60 I NTSC/PAL distinction input port
42 NTSC_PAL O NTSC/PAL distinction effect listing PORT
43 RGB_SEL O Switching RGB1/2
44 RGB_SW O Switching RGB
45 Y_C_SW O Switching VIDEO,Y/C
46 OSD_CEB O OSD IC ENABLE
47 DAC_CEB O D/A converter ENABLE PORT
L: During standby, communication, H: Normal
48 EMG_OUT O EMERGENCY output
49 (E) SCL I/O Clock for E2PROM
50 (E) SDA I/O Data for E2PROM
51 P_MUTE O SFM output license (H) / disabling (L)port
L: During standby, Normally,H output, Panel mute: L output
52 NTSC O Model distinction listing (NTSC)
L: At the time of run actuating free input signal by NTSC, PAL or no input, signaling for a fault
H: except NTSC and PAL
Description
H: Normal
L: Normal
Active L
H: Normal operation
9.98MHz sine wave
9.98MHz sine wave
Standby GND
H: MP mode on
Chip/enable for OSD (active low)
L: Green LED (in normal operation) lighting
L: Red LED lighting (standby condition), H: Other condition
L: Input
H: Output
No care: INPUT1 (VIDEO), INPUT2 (Y/C)
H: INPUT3 (RGB1input), L: INPUT4 (RGB2input)
H: INPUT1 (VIDEO), INPUT2 (Y/C), INPUT3,4 (RGB input)
L: INPUT1 (VIDEO), H: INPUT2 (Y/C), L: INPUT3,4 (RGB input)
Chip/enable forOSD (active low)
Chip/enable for DAC (active low)
L: During standby
H: During standby
H: During standby
Add +12V in built-in flash memory renewal
L: During standby, H: Normal
Normally, L output
Normally, H output
Normally, H output
PDP-V402
H: Other condition
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