Download  Print this page

Sanyo HT-F450 Service Manual page 8

Av surround processor
Hide thumbs

Advertisement

IC BLOCK DIAGRAM
.. .
,-:.
', ... . . .
IC401
BU4052BC
(Dual
2-input
4-ch Analog
Multiplexer/De-Multiplexer)
X CHANNELS
lt4KXJT
/32101
(a
Voo
~
1
B
COMMON
OUT/lN
A@=
BI NARY
TO
B*
~og;gloN
10F4
OECODER
WmH
'NH @----
INHIBIT
I
I
.0123z
\
/
Y CHANNELS
lN/Oi.rr
IC430
CXP84412-103Q
(Micro Processor)
x
Y
OY
1
2Y 2
Y.
COMMON
3
3Y 4
lY
5
INH
6
VEE 7
u
-16
-15
-14
-13
-12
-11
I
-lo
- 9
VDO
2x
lx
tOMMON
ox
3x
A.
B
,.
."-
No.
Name
1/0
Description
1
PF3
o
Not used
2
PF4
0.
Not used
3
PF5
o
Not used
4
PF6
o
Not used
,
,
li-
5
PF7
I 0
I Not used
6
VOL LED5
O i Volume LED
[Max MH=Active)
1
No.
I
Name
1/0
Description
41 ] PA3
o
Not used :"'.s$ !';
:3 -L>.., ;tP:-
.
j? ?J.'-%.%
42 ] PA4
o
Not used
.
. . -.,
.. ?
43 I PA5
o
Notueed
,
-,
---
s ~
44
SP.RY
o
Speaker relay
,. .. -
,,. ,
45
PW.R'f
o
Power relay
-
. .:
46
FUNCT.C
o
Function select
12
PD6
o
Not used
13
PD7
o
Not used
14
PRO LOGIC
o
LED
(L=Active)
15
3CH LOGIC
o
LED
(L=Active)
~
O
VIDEO function LED (L=Active)
J
21
LINE
o
LINE function LED
(L=Active)
22
NORMAL
o
Normal LED
(H=Active)
23
WIDE
o
Wide LED
(H=Active)
24
PHANTOM
o
Phantom LED
(H=Active)
25
STANDBY
o
Standby LED
(L=Active)
26
PH4
o
Not used
27
PH5
o
Not used
28
PH6
o
Not used
,
,
29 I PH7
I O I Not used
30 I RESET
I Reset inout
31
EXTAL
Clock Generator
32
XTAL
Clock Generator
33
Vss
Ground
34
TX
Not used
35
TEX
Not used
36
AVSS
A/D converter
37
AVREF '-
A/D converter for standerd voltage input
38
KEY. O
I
Key input
39
KEY. 1
I
Key input
40
V-CHK
I
Detect for stoppage failure of electricity
-.
47 I FUNCT.B
o
Function select
""
48 ] FUNCT.A
o
Function select
-
49
PB3
o
Not used
50
SUR.CE
o
Surround IC chip enable control
.
' " ".
51
VO.CE
o
Volume IC
chip
enable control
52
DATA
o
Data
53
CLK
o
Clock
54
POWER IN
I
Power input
55
Pw.sw
I
Power switch input
56
IR
I
Remote control signal
57
FUNCTION.SEL
I
Function select
(L=TV, H=LINE)
58
PE4
o
Not used
!
59 I PE5
o
Not used
60 j C.MUTE
o
Center Muting
(H=Active)
61 i S.MUTE
o
Surround Mutino
(H=Acfive)
,
,
.
62 I A.MUTE
I
o
I -20dB Muting
iH=Activej
63 I F.MUTE
O I Front L. R Mutina
(H=Active)
I
64 ] P14
o
Not used
65 IP15
o
Not used
66 1P16
o
Not used
,
67
P17
o
Not used
68
PGO
o
Not used
69
PG 1
0
Not used
70
PG2
o
Not used
71
I PG3
I
o
I Not used
I
I
.----
1
I
..-.
----
72 I VDD
i
I Power Sucmlv
I
i73i
NC
I
[ Non
connection
I
\
a
-.
74
PG4
o
Not used
75
PG5
o
Not used
76
PG6
o
Not used
77
PG7
o
Not used
4
76
PFO
o
Not used
79
PF1
o
Not used
60
PF2
o
Not used
f
:: ..:
.
..'
.,".

Advertisement

Table of Contents
loading

  Related Manuals for Sanyo HT-F450

This manual is also suitable for:

Ht-f450au