Sanyo DC Service Manual page 42

C BLOCK DIAGRAM (AMPLIFIER)
N
No.
SIGNAL NAME
!/0 DESCRIPTION ACTIV P OFF
65 FOR IND o
Fo.tiard Ind, c.ator (LED; S,gnal
L
H
66 DOLBY RIP o
Oolb.{ Rec :Play Control S,qnal H : REC L
67 C STOP
o CD Stop S,gnal
L
H
68 DuE lN/OUT
o Dubb, ng IN IOUT Seleflfon $$qnal
L
H
69 P MuTE o
Play Mutrng $,gnal H H
cord Mut!ng S,gnal H H
,.ecord Ind(c ator (LED) S,gnal
, L
H
Not Used (VSS)
AD Ground
. . . . . .
Not Used (VSS)
Not used (vDO)
Not Used (VDD)
Not used (VSS)
. . . . ..,, ,,n ,., ',. - ..,. ,..
70 R MUTE o \
Re[
71 REC INO
o
1 .<.,
72 DISCO PARTY o
73 A-VS5
74 PHONO OR VIDEO
I
75 MOTOR OR ELECT I
76
REMOCON KEY
t
77 NC 1
78 BAND LEVEL IN
I , .. !>" r.>> ""-, ," ,, "!,, .-. ".",
t !
79 VOL LEVEL OC IN I I Volume Level DC OUT
1
80
AM1 I
ACTIV : Active Level
IC501 BA3826S (Band Pass Filter for Spectrum Analyzer)
k:
L
IN R IN N.C RO GhO!
GN02 N.C vEE
I IF---J
-,
N.C
L
R RESET A
B c
N.C VO
IC5S1 LC7S82 (LCD Driver)
-56-
.
P OFF : Power Off T,me Level
,,.
.
IC700 STK4132MK11 (AF Power Amplifier)
L-CM
a-c.
WTWT .KC .VCC -"~~
v~~ OUTP"l
.Vcc
l-c. R?
R%
5rlaAP
C* 0
INPUT ~:: -"cc -
w
r&: INPUT
$.41 J,,NG
IC
BLOCK DIAGRAM (AMPLIFIER)
IC702. 802 BU40518 (3-input 8-Channel Multiplexer / De-Multiplexer)
m Voo
I l—————a
3
COM
mum+ TABLE
I
I L
I
8 Vss 7 IVES
IC701.703.704 .7 06.709.710 .711
LA64S8S (Dual Operational Amplifier)
IC708 TC9153AP (Electronic Volume)
WI
.-*
0s
L-an
t-ml
a-m
L-*
L-a/r
iiiEREl-
1
L
,, .-ox*
CONTROL INPUTS
I
m.)
CHANNEL
(N H4B)T C B A
4051
L LLLL
I
0 I
I LILILIH
I 1 I
LILIHIL
I
1
,1,1.1. ?
I-i'
i" i"!
LHLL
4
[
x : DON'T CARE
I
IC705 LC7522 (7-Segment Electronic Variable Resistor)
-..'.