DVR-5070
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)
