
DVR-505/7000
4
CIRCUIT DESCRIPTION
Port No. Port Name I/O Description
1 GRID2 O FIP GRID
2 GRID1 O FIP GRID
3 NC - CONNECTED TO VDD
4 POWER DOWN I POWER DOWN CHECK
5 RDS CLK I RDS CLOCK
6 DVD RX I DVD UART INTERFACE (RX)
7 RDS OPTION - NC (CONNECTED TO GND)
8 RMC I REMOTE CONTROLLER SIGNAL
9 RDS DATA I RDS DATA
10 SM7346 CLK O VOLUME IC (IC84) CLOCK
11 SM7346 DATA O VOLUME IC (IC84) DATA
12 ENCODER UP I ENCODER (1) SIGNAL
13 ENCODER DW I ENCODER (2) SIGNAL
14 DVD TX O DVD UART INTERFACE (TX)
15 DVD RST O DVD RESET
16 DSP A. BOOST O DSP AUTO BOOT
17 H/P CHK I HEADPHONE CHECK
18 CS8415A-CE O DIR IC (IC14) CHIP ENABLE
19 EMPHASIS O CS4228 DAC IC EMPHASIS ON/OFF
20 TUNED I TUNED SIGNAL
21 DSP INTREQ O DSP INT REQUEST
22 4094CE O IC431 CHIP ENABLE
23 CS49326 CE O CS49326 DSP IC (IC5) CHIP ENABLE
24 CS4228 CE O CS4228 DAC IC (IC1) CHIP ENABLE
25 DSP CLK O CS49326 DSP IC (IC5) CLOCK
26 CS49326 DATA IN I CS49326 DSP IC (IC5) DATA
27 DSP DA OUT O CS49326 DSP IC (IC5) DATA
28 VREF I A/D REFERENCE (5V)
29 PROTECT I AMP PROTECTION IN
30 KEY IN I A/D KEY
31 EEPROM DATA I/O EEPROM (IC502) DATA
32 EEPROM CLK O EEPROM (IC502) CLOCK
33 8415 DA IN I CS8415 DIR IC (IC14) DATA
34 DVD OPTION I MODEL DISCRIMINATION
35 PLL DATA IN I PLL DATA
36 STEP OPTION I TUNER STEP OPTION
37 VSS I AVSS (ANALOG GND)
38 RST I RESET(LOW ACTIVE)
39 EXTAL I X-TAL IN(10MHz)
40 XTAL O X-TAL OUT(10MHz)
41 GND - VSS (DIGITAL GND)
42 NC O UNUSED
43 GND - GND
44 VDD I VDD (DIGITAL VDD)
45 VFDP I VFDP (FIP PULL DOWN POWER -30V)
46 STANDBY O STANDBY (POWER RELAY ON/OFF)
47 SPK RELAY O SPEAKER RELAY ON/OFF
48 SUB ON/OFF O SUB WOOFER GAIN CONTROL
49 CS8415 RST O CS8415 (IC14) RESET
50 PLL CE O PLL CHIP ENABLE
51 PLL CLK O PLL CLOCK
52 PLL D OUT O PLL DATA
53 A CLK O COMMON CLOCK(LC7821,BU4094)
54 A DATA O COMMON DATA(LC7821,BU4094)
55~59 VIDEO (SW1~SW5) O VIDEO SW (1~5)
1. Port Description of System Microcomputer : CXP828XX(IC501)