Kenwood DV-502 Service Manual page 6

DV-502/503/DVF-3050/3550
QQ
3 7 63 1515 0
Port No. Port Name
13 PIO3(7) DVD RESET
39~46 PIO4(0~7)
Reserved
20 B WCLK
21 B V4
22 NRSS OUT
103 ADC SCLK
104 ADC LRCK
105 ADC DATA
106 ADC PCMCLK
EMI Interface
161~170 CPU ADR(1~10)
173~183 CPU ADR(11~21)
141~148 CPU DATA(0~7)
151~158 CPU DATA(8~15)
138 CPU RAS1
131 CPU WAIT
130 CPU RW
128 CPU BE(0)
129 CPU BE(1)
139 CPU CAS0
140 CPU CAS1
135 CPU CE(0)
TE
L 13942296513
134 CPU CE(1)
133 CPU CE(2)
132 CPU CE(3)
118 CPU PDR CLK
117 CPU OE
Interrupt
127 IRQ(0)
126 IRQ(1)
125 IRQ(2)
Timers
116 PWM0
115 PWM1
114 PWM2
JTAG
113 TCK
112 TDI
111 TDO
110 TMS
109 TRST4
Front-end
16 B DATA
17 B BCLK
18 B FLAG
19 B SYNC
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Video DAC
27,26,25 R/G/B (OUT)
32~34 Y/C/CV (OUT)
.
29 I REF RG
28 V REF RG
6
CIRCUIT DESCRIPTION
Main
I/O
Function
I/O PIO3(7)
I/O PIO4(0~7)
I/O Unused
I/O Unused
I/O Unused
I/O Unused
I/O Unused
I/O Unused
O Unused
O ADR(1~10)
O ADR(11~21)
I/O DATA(0~7)
I/O DATA(8~15)
I/O Unused
I Connected to GND
O READ NOT WRITE
O BYTE 0 ENABLE
O BYTE 1 ENABLE
O DRAM CAS0
O DRAM
O DRAM RAS0
O Chip Sel. BANK1
O Chip Sel. BANK2
O Chip Sel. BANK3
O SDRAM clock
I/O Output enable
I Unused
I Unused
I IRQ(2) (MD IRQ)
I/O Unused
I/O Pulse width modula o
I/O Unused
I Test clock
I Test data in
O Test data out
I Test mode select
I Test reset
I 12S data
I 12S bit clock
I 12S error flag DVD
I 12S selector/ABS time SER SYNC
x ao u163
y
O R/G/B output
O Y/C/CV output
i
I I REF DAC RGB
I V REF DAC RGB
2 9
8
Alternate function
Input
PARA DATA(7)/UART2 CTS
(CTS2)
Q Q
3 6 7 1 3 1 5
HSYNC
Boot from ROM3
VSYNC
SER Data
SER BCLK
SER VALID
co
.
9 4 2 8
Output
COPM OUT0
YC(0~7)
0 5 8 2 9 9 4 2 8
m
9 9
9 9