Kenwood DVR-8100, Руководство по обслуживанию

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