Pioneer HTP-072, Руководство по обслуживанию

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26
HTP-072
1 2 3 4
A
B
C
D
E
F
1 2 3 4
(EPF025A)(D-MAIN Assy: IC2023)
SUB UCOM
• Pin Function
No. Symbol I/O Description
1 PULL DOW N Pull down
2 CSCK_MAI N I Clock signal input from MAI N UCOM
3 SCDO_MAI N I Data signal Input from MAI N UCOM
4 HSCL I/O IIC clock signal output pin
5 HSDA I/O IIC data signal in/output pin
6 PULL UP Pull up
7 PULL UP Pull up
8 3V3 +3.3 V power supply
9 G N D Ground
10 PULL DOW N Pull down
11 N C N ot used
12 3V3 +3.3 V power supply
13 N C N ot used
14 N C N ot used
15 SUB_RST I SUB UCOM reset signal input pin
16 SUB_OPO I Chip operation mode select signal input pin (0: normal)
17 G N D Ground
18 N C N ot used
19 N C N ot used
20 N C N ot used
21 N C N ot used
22 N C N ot used
23 N C N ot used
24 N C N ot used
25 N C N ot used
26 N C N ot used
27 DDC_SCL I/O IIC clock signal output pin
28 DDC_SDA I/O IIC data signal in/output pin
29 N C N ot used
30 N C N ot used
31 N C N ot used
32 N C N ot used
33 N C N ot used
34 N C N ot used
35 MAI N _IRQ O Interrupt signal output pin to SUB UCOM
36 SUB_IRQ O Interrupt signal output pin to MAI N UCOM
37 THRU_LED O HDMI LED on/off control pin
38 N C N ot used
39 3V3 +3.3 V power supply
40 G N D Ground
41 XI N I Input for 24 MHz crystal
42 XO O output for 24 MHz crystal
43 3V3 +3.3 V power supply
44 G N D Ground
45 RSTb O Reset signal output pin to HDMI IC
46 N C N ot used
47 N C N ot used
48 PULL UP Pull up
49 HDMI_CEC I/O Data signal input from HDMI_CEC
50 G N D Ground
51 HT0_CTLB O Hot plug detect signal output pin (DVD FU N CTIO N )
52 HT1_CTLB O Hot plug detect signal output pin (SAT/CBL FU N CTIO N )
53 HT2_CTLB O Hot plug detect signal output pin (GAME FU N CTIO N )
54 HT3_CTLB O Hot plug detect signal output pin(BD FU N CTIO N )
55 N C N ot used
56 N C N ot used
57 N C N ot used
58 I N Tb I Interrupt signal input pin from EP9442
59 N C N ot used
60 HPD_I N I Intput for HDMIOUT HPD
61 G N D Ground
62 SUB_RXD I Soft update UART comunication data input pin (UPDATE JIG B'D)
63 SUB_TXD O Soft update UART comunication data output pin (UPDATE JIG B'D)
64 HDMI_CEC I/O Data signal input from HDMI_CEC