Kenwood DVR-8100 Service Manual page 6

DVR-8100
QQ
3 7 63 1515 0
Pin No.
182,183 CPU ADR(20,21)
PIOs and communication
186 PIO0(0) T STROBE
187 PIO0(1) MOD SW
188 PIO0(2)
189 PIO0(3)
190 PIO0(4)
191 PIO0(5)
PIO0(6) SLIDER SENSOR
192 OPEN/CLOSE
(DRAWER POSITION)
PIO0(7) SLIDER IN
193
(DRAWER CCW/CTRL)
194 PIO1(0) SDA
195 PIO1(1) SCL
PIO1(2) SLIDER OUT
196
(DRAWER CW CTRL)
197 PIO1(3) TXD(JIG)
200 PIO1(4) RXD(JIG)
201 PIO1(5) FRONT TXDI
202 TRIGGER IN
203 TRIGGER OUT
204 PIO2(0) H/P
205 PIO2(1) FRONT RXD
206 PIO2(2)
TE
L 13942296513
207 PIO2(3)
208 PIO2(4) AUDIO MUTE
Power supply
4,47,81,107
VDD3-3
136,159,184
14,37,64,94
119,149,171 VDD2-5
198
5,15,38,50,65
83,96,108,121
VSS
137,150,160
172,185,199
2. Pin Description of Main Microcomputer : CXP82860 (X09, IC22)
Pin No. Pin Name
1,2 NC
3 VDD
4 POWER DOWN
5 RDS-CLK
6 H/P CHK
7 RDS OPTION
8 REMOCON
www
9 RDS-DATA
10 NC
11 EEPROM CLK
12,13 ENCODE (1,2)
14 AMP PROTECT
6
CIRCUIT DESCRIPTION
Pin Name
I/O
NC Unused.
I Power supply (+5.0V)
I Detection pin for the power failure.
I RDS clock input.
I Detection pin for the headphones.
I Setting pin for RDS.
I Remote controller signal input.
I RDS data input.
x ao
NC Unused.
y
O Clock output to EEPROM.
. i
I Volume encoder input.
I Detection pin for the protection.
8
I/O
- Unused.
I/O UART0 data
I/O ATAPI RD
O Unused.
O Unused.
O Unused.
I Unused.
I/O Detection port of slider sensor for DVD mechanism.
I/O Control port of slider (IN) for DVD mechanism.
I/O SSC0 data (MTSR out / MRST in)
I/O SSC0 clock
I/O Control port of slider (OUT) for DVD mechanism.
I/O UART2 TXD
I/O UART2 RXD
I/O UART1 TXD
I/O Trigger input from JIG.
I/O Trigger output from JIG.
- Unused.
I/O UART1 RXD
Q Q
I Unused.
3 6 7 1 3
- Unused.
O Audio mute control.
- 3.3V Power supply.
- 2.5V Power supply.
- GND
Pin Description
u163
.
2 9 9 4 2 8
Pin Description
1 5 0 5 8 2 9 9 4
Logic
H
RDS
m
co
PROTECTI
ON ON
9 9
2 8 9 9
L
H/P IN
NO RDS