Hitachi DV-PF2U Service Manual page 82

BLOCK DIAGRAMS < DVD SECTION >
DVD 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
WAIT
1
/RE
2 /RE
/WEL
3 /WEL
CS1
6 CS1
RESET
11 RESET
CN401
FG
10 FG-IN
SENSOR
RELAY
FG CBA
CBA
4-2-6
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 82 186 /FERS
IC606
(INVERTER)
OSCI 23
OSCO 24 120 CLOCK
2 4
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 44 127 IRQ2
KEY IN 45
IC102 (OP AMP)
FG-IN
80 14 12
DVD MAIN CBA UNIT
CN501 CN1001 CN2002
VFD-STB 3 21 FP-STB 21 2
22 FP-DIN 22 5
VFD-DIN 1
VFD-DOUT 2 23 FP-DOUT 23 1
VFD-CLK 204 24 FP-CLK 24 3
REMOTE 125 26 REMOTE2 26
KEY
MATRIX
TO SERVO/SYSTEM
CONTROL BLOCK
<VCR SECTION>
MAIN CBA
IC2001
(FRONT PANEL CONTROL)
1G 23
7G 17
a/KEY-1 7
CN2001
b/KEY-2 8
FP-STB 2 2 FP-STB
c/KEY-3 9
FP-DIN 5
28 FP-DIN
d/KEY-4 10
FP-DOUT 1 27 FP-DOUT
e 11
FP-CLK 3 1 FP-CLK
f 12
g 13
h 14
i
16
K2 4
K1 3
RM2001
REMOTE
SENSOR
CL2003 CL2004
8 REMOTE1 8
REMOTE2 10
10
K1 6
6
5 K2 5
KEY-1 3
3
2 KEY-2 2
1 KEY-4 1
REMOTE1
FUNCTION CBA
FL2001
FIP
GRID
SEGMENT