Panasonic SC-AK48, Service Manual

Page: 73 / 104

SD
21
SD
3
M38199MF227
IC600
SYSTEM CONTROL / FL DRIVE
DECK1
DECK1
DECK2
DECK2
2
R ch
10 11
A B C
15
PMOUT
V
CC
9
+B6
14,16
GND
1/2
ENB
13
D633
8
ANF
12
13
M62457FPE1
IC603
SPE. ANALYZER AMP
SPE
48
SPC
SPB
SP
A
D634 D635
47 46
11 1
SER3
CR
T/
SER4
M62433AFP
IC303
DIGITAL SOUND
CONTROLLER
B
MUTING
MUTING
CONT.
Q400
(Q200)
Q306
-B1
MUTEA
D629
BLKCK
MLD/PLL CE
MLD
MDATA
MCLK
26
MDATA/PLL DATA
MCLK/PLL CLK
27
28
30
SQCLK
CDRST
RESTSW
20 22 18 19 29
D640
D641
D642
PLLCK PLLD
A
PLLCE
ST
A
TUS
2
TPS
IN
STAT
SUBQ
BLKCK
SQCK
RESTSW
D644
ST/DO/SUBQ
DO/ST
SWITCHING
Q901
SWITCHING
Q903
SWITCHING
Q902
D645
A
SER3
7
A
OUT
SER5
12
MKCLK
B
SER2
10
MKD
A
T
A
C
78
(67)
E
77
(68)
76
(69)
D
C
A
B
F
OFF
74
(71)
75
(70)
79
(66)
4
(62)
3
(63)
61 27
(38)
26
(39)
24
(41)
23
(42)
22
(43)
Graphic
equalizer
21
(44)
9~20
(45~56)
FILTER
5
(60)
7
(58)
AV
DD
36
31
DV
DD
72
AV
SS
35 73
DGND A
GND
Microcomputer
interface
29
8
(57)
30
28
(37)
+B4
-B3
Rch
32 33 34
6
(59)
N F
Rch
Rch
64
65
80
2
1
NF
SWITCH-
ING
Q304
AUX
(To CD CHANGER
SECTION)
CD P.B.signal
D647
(To CD CHANGER
SECTION)
/RST
TPS
VR601
(MIC
VOLUME)
MIC
MIC
AMP
Q600,601
+B4
MIC SW
SA-AK48
73