Panasonic SA-DK20 - Page 39

4CH ELECTRONIC
VOLUME CONTROL
M62444FPE1
IC205
QUAD OP AMP
M5228FPE1
IC301
19
20
X452
XIN
XOUT
KEY1
4~6
KEY3
KEY SWITCH
SEG 2~SEG33
REG1~REG12
44~55
56~88
FL DISPLAY
FL600
FROM POWER
TRANSFORMER
DSP
C2BBFD000308
IC453
MUTING
SWITCH
MUTING
CONTROL
MUTING
SWITCH
MUTING
CONTROL
MUTING
CONTROL
PORT6 PORT5 PORT4
PORT1
PORT2 PORT3
DVDD
SWITCH
+B
18
RESET
Q601
+B
RESET
SWITCH
IC601
C2BBGF000359
MICRO-CONTROLLER
CK
35
LA
36
DO
34
EXP18
22
13(9)
1
7
12(10)
Q805
14(8)
Q302
Q301
CCH
SLOUT(R)
MUTS
28
MUTSW
27
Q205
Q202
Q203
MUTA
29
DATA
EDA/NJ_DT
6
CK
ECK/NJ_CK
5
ST
NJ_ST
4
DATA
CLOCK
LATCH
41
(32)
40
(31)
39
(30)
38
(29)
36
(27)
37
(28)
35
(26)
123 456
89
10
11
12
13
DGND
14 15 16
17
18 19
20
21
OUTPUT PORT
24 23
22
+
-
+
-
2
3
+
-
6
5
LIN(R)
SUBW
LEV1
EXP16
24
LEV2
EXP15
25
39
SA-DK20