Pioneer PDP-504CMX, Service Manual

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PDP-504CMX/1
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5 6
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C
D
F
A
B
E
M30622F8PGP-K (DIGITAL VIDEO ASSY : IC5201)
No. I/0 ACTIVE Pin Name Function
1 VSUS [D/A] Vofs power control O
2 VOFS [D/A] Vofs power control O
3 TXD_IC4 3 serial communication with IC4MANTA - data transmission O
4 RXD_IC4 3 serial communication with IC4MANTA - data receive I
5 CLK_IC4 3 serial communication with IC4MANTA - clock output O
6 BYTE (GND connection) I
7 CNVSS Pin for processor mode setting (pull-down) I
8 NC NC pin
9 NC NC pin
10 RST_MD Reset input I L
11 XOUT Output for main clock O
−
12 VSS GND
− −
13 XIN Input for main clock I
−
14 VCC1 Power supply = STB3.3V
− −
15 NMI (pull-up) I
16 REM_B (Interruption) Remote control signal input (in the panel unit) I
17 KEY_B (Interruption) Key signal input (in the panel unit) I
18 RST2 (Interruption) IC4 reset detection I L
19 HD_IN_B HD signal existence distinction I L
20 PD_MUTE Mute the power down output to the POWER SUPPLY Unit O L
21 PS_PD PD signal in the POWER SUPPLY Unit I H
22 DCC_PD PD signal of DC-DC converter I H
23 NC NC pin
24 NC NC pin
25 VD_IN V. frequency count I L
26 EEPRST EEPROM power SW O H
27 E_SCL IIC clock output for EEPROM O
28 E_SDA IIC data I/O for EEPROM I/O
29 TXD Communication with flash ROM writer - data transmission O
30 RXD Communication with flash ROM writer - data receive I
31 SCLK Communication with flash ROM writer - clock input I
32 BUSY Communication with flash ROM writer - busy output O
33 TXD0
UART communication with main UCOM (external PC) - data transmission
O
34 RXD0
UART communication with main UCOM (external PC) - data receive
I
35 NC NC pin
36 REQ_MD Communication request to the main UCOM O H
37 PSW_D Mute of DC-DC converter O H
38 WE_IC4 In IC4 (MANTA) rewriting, control for communication path switch O H
39 EPM Setting pin for flash rewriting mode (pull-down) I
40 IC4_RST IC4 forced reset O L
41 IC4_CE Enable for IC4 communication O L
42 IC4_BUSY Busy input for IC4 communication I H
43 REQ_IC4 Communication request from the IC4 I H
44 CE Setting pin for flash rewriting mode (pull-up) I
45 PSIZE Panel size distinction I
46 B_SCL IIC clock output for backup EEPROM O H
47 B_SDA IIC DATA I/O for backup EEPROM I/O H
48 ADR_PD PD signal of address junction I H
49 LED_G Green LED control O L
50 LED_R Red LED control O L
• PDP UCOM
Pin Function (1/2)