Block Diagrams; System Control Block Diagram - Hitachi DV-P725U Service Manual

BLOCK DIAGRAMS

System Control Block Diagram

IC301
(FRONT END PROCESSOR)
TFWD
42 TFWD
TREV
41 TREV
TIN
59 TIN
TOUT
60 TOUT
SCK
70 SCK
STDIO
FROM/TO
72 STDIO
SEN
RF SIGNAL
10 SEN
PROCESS MUTE
46 MUTE
/SERVO
PS
47 PS
BLOCK
DIAGRAM
CD/DVD
71 CD/DVD
CFE
62 CFE
CAS
63 CAS
STANDBY
64 STANDBY
13
16
26
CPUADR0
ADDRESS BUS
33
CPUADR17
35
40
FROM/TO
84 CPUDT0
DVD SIGNAL
DATA BUS
PROCESS 91
CPUDT7
NINT1
BLOCK
76 NINT1
NINT2
DIAGRAM
77 NINT2
WAIT
1 WAIT
/RE
2 /RE
/WEL
3 /WEL
CS1
6 CS1
RESET
11 RESET
CN401
FG
10 FG-IN
SENSOR
RELAY
FG CBA
CBA
4-2-1
IC601
(DVD HOST PROCESSOR)
200 TFWD
201 TREV
187 TIN
188 TOUT
+3.3V
IC605
5 RESET 4 124 RESET
HANG 48
Q701
READY 49 208 READY
/FERS 82
IC606
(INVERTER)
OSCI 23
OSCO 24 2 4 120 CLOCK
X301
(16.9344MHz)
X601 27MHz
BUSCLR 53 22 BUSCLR
SDA 52
SDA 51 20 SDA
SCL 50 21 SCL
SCL 79
+3.3V
KEY OUT IRQ2
44 127
KEY IN
45
IC607
(INVERTER)
IC102 (OP AMP)
2
FG-IN
80 14 12
DVD MAIN CBA UNIT
CN501 CN1001
VFD-STB 3 21 FP-STB 21
VFD-DIN 1 22 FP-DIN 22
VFD-DOUT 2 23 FP-DOUT 23
FP-CLK 24
VFD-CLK 204 24
REMOTE 26
REMOTE 125 26
PWRCON 20
PWRCON 207 20
REMOTE
SENSOR
RM2001
/FERS
TO VIDEO
SW2115
BLOCK
POWER
DIAGRAM
CLK27MHz
4
D2021
STANDBY
SWITCH CBA
AV CBA
IC2001
(FRONT PANEL CONTROL)
1G 23
2 FP-STB
GRID
28 FP-DIN
7G 17
27 FP-DOUT
1 FP-CLK
a/KEY-1 7
b/KEY-2 8
c/KEY-3 9
d/KEY-4 10
e/KEY-5 11
f/KEY-6 12
g/KEY-7 13
h/KEY-8 14
i 16
CN2002
7 KEY-4
9 KEY-3
11 KEY-2
10 KEY-1
4 KEY-7
KEY-8
6
K2
K2 4 8
K1
K1 3 5
1 KEY-5
2 KEY-6
JP1004 JP1003
1 K2 1
2 KEY-2 2
+3.3V
3 STANDBY-LED 3
Q2021
FL2001
FIP
SEGMENT
CN2201
7
KEY
9
MATRIX
11
10
4
6
8
5
1
2
SW2201
(SHUTTLE)
SW2202
(JOG DIAL)
FUNCTION CBA