Kenwood DVR-8100 Service Manual page 8

DVR-8100
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3 7 63 1515 0
Pin No. Pin Name
74 AK4586 CDTI
75 DSP A BOOT
76 DSP 493xxCE
✽
77 74AC157SEL
78~88 NC
89 VDD
90~100 NC
TC74VHC157F (X09, IC3)
✽
Selector Pin 1
DVD,SAT
VCR,TUNER
OTHER
3. Sub Microcomputer : CXP82832 (Front IC51)
Pin No. Pin Name
1,2 G2,G1
3 -
4 RXD
5~9 GND
10~13 NC
14 STBYLED
15 JOG LED
TE 16 DVD RESET
L 13942296513
17 TXD
18~24 NC
25 SUB CLK
26 SUB DATA
27 SUB DATAOUT
28 VREF
29~33 NC
✽
34 DVD OPTION
35,36 NC
37 VSS(G)
38 RST
39 EXTAL
40 XTAL
41,43 GND
42 NC
44 VDD
45 VFDP
46~53 NC
54~79 P01~P25
80~86 NC
87 G15
88 G14
89 VDD
www
90~100 G13~G03
✽
DVD Option Table
Region R501
M2,E,T 1.5K
M 3.9K
M3,X 6.8K
8
CIRCUIT DESCRIPTION
I/O
O Clock output to AK4586 (X09, IC7).
O Boot control to DSP.
O Chip select to DSP.
O Selector control for digital input.
NC Unused.
I Power supply (+5.0V)
NC Unused.
1
0
0
I/O
O Grid signal output for FDP.
- Unused.
I Communication from MPEG (IC61).
- GND
- Unused.
- Unused.
O Control port of jog LED.
O DVD reset signal pin.
O Communication to MPEG (IC61).
- Unused.
I Sub clock input.
I Sub data input.
O Sub data output.
- Reference voltage input.
- Unused.
- Setting pin for DVD region.
- Unused.
- GND
I Reset signal input.
I Connection pin for system clock oscillation crystal.
O Connection pin for system clock oscillation crystal.
- GND
- Unused.
- Positive power supply (+5.0V).
- Power supply (-30V) for FDP.
- Unused.
O Segment signal output for FDP.
- Unused.
O Grid signal output for FDP.
O Grid signal output for FDP.
- Positive power supply (+5.0V).
O Grid signal output for FDP.
x ao
y
. i
8
Pin Description
Pin Description
Q Q
3 6 7 1 3
u163
.
2 9 9 4 2 8
Logic
H
1 5 0 5 8 2 9 9 4
m
co
9 9
L
2 8 9 9