Panasonic SA-XR10E, Service Manual

Page: 87 / 102

25 26 27 28 29 30 31 32 33 34 35 36
SA-XR10(E,EB,EG,GCS,GD,GN) MAIN CIRCUIT DIAGRAM
IC301
C0ZBZ0000654
DIGITAL AUDIO
AMPLIFIER
IC305
C0BBCA000040
VOLTAGE COMPARATOR
R326 100K
C313
0.01
R329
3.9K
C312
0.1
39
33
32
31
28
23 22 20 19 18 17 15 14
DVss3
R
V
ALID
L
MOD0 MOD1 MOD2 SDIN LRCLK SCLK MCLK
OUT
DVss1 DV
DD
1
DVss1
DV
DD
1
NC
M S
VALID R
/ PDN
/ RESET
NC
AVss2
PLL FLT RET
PLL FLT OUT
AV
DD
2
MCLK IN
AV
DD
1
XTL
IN
XTL
OUT
OSC
CAP
A
Vss1
DEM
EN
DEM
SEL
FTEST
STEST
DBSPD /
MUTE
DVss3
L
DV
DD
3 L
PWM AP L
PWM AM L
PWM BM L
PWM BP L
DV
DD
2
DVss2
PWM AP R
PWM AM R
PWM BP R
PWM BM R
DV
DD
3 R
46 47 48 40 41 42 43
13
8
7
12
10
9
3
2
1
6
5
4
44
34
30
27
26
25
21 16
11
45 37 38
36
35
29
24
R338
4.7K
R328
10K
R327
1K
R318 10
C307 0.1
R317 10
C306
0.1
C308
0.1
R319
10
H
Q
R303
22
C302
0.1
C301
16V22
R302
3.3
R304
220
C303
0.047
C304
4700P
D301
B0ADBH000001
D302
B0ADBH000001
R301
22
R321
R323
R325
10K
R320
3.3
C309
16V22
C305
0.1
C317
22P
R336 100K
R337
100K
C316
22P
R334 100K
R335
100K
C315
22P
R332 100K
R333
100K
C314
22P
R331 100K
R330
100K
R308 R312
R31
1
A
B
C
D
E
F
G
H
I
J
K
L
A
B
C
D
E
B
H
K
14
13
12
11
10
9
8
1
2
3
4
5
6
7
1OUT OUT3
2OUT OUT4
Vcc GND
2IN- 4IN+
2IN+ 4IN-
1IN- 3IN+
1IN+ 3IN-
IC302
C0JBAA000149
AND GATE
IC303
C0JBAA000149
AND GATE
IC304
C0JBAC000262
NAND GATE
J
C310
0.1
I
H
B
C
K
E
D
A
F
G
L
R358
5.6K
C353
22P
R357
1K
R352
100
C351
0.1
R354
5.6K
C352
22P
R353
1K
R356
47
R359
2K
R360
47
Q306
C350
0.1
C349
16V22
R351
3.3
R355
2K
Q305
R344
5.6K
C345
22P
R343
1K
R342
100
C344
0.1
R348
5.6K
C346
22P
R347
1K
R350
47
R345
2K
R346
47
Q301
C343
0.1
C342
16V22
R341
3.3
R349
2K
Q302
C341
0.1
R393
5.6K C381
22P
R392
1K
R387
100
C379
0.1
R389
5.6K
C380
22P
R388
1K
R391
47
R394
2K
R395
47
Q314
C378
0.1
C377
16V22
R386
3.3
R390
2K
Q313
R379
5.6K
C373
22P
R378
1K
R377
100
C372
0.1
R383
5.6K
C374
22P
R382
1K
R385
47
R380
2K
R381
47
Q309
C371
0.1
C370
16V22
R376
3.3
R384
2K
Q310
C369
0.1
A
B
C
D
E
F
G
H
I
J
K
L
C31
1
0.1
Q305,306
B1ABDB000029
FILTER AMP
Q301,302
B1ABDB000029
FILTER AMP
Q313,314
B1ABDB000029
FILTER AMP
Q309,310
B1ABDB000029
FILTER AMP
14 13 12 11 10 9 8
1 2 3 4 5 6 7
Vcc
GND
14 13 12 11 10 9 8
1 2 3 4 5 6 7
Vcc
GND
14 13 12 11 10 9 8
1 2 3 4 5 6 7
Vcc
GND
N
0
0
0 0
0
D
SCHEMATIC DIAGRAM-7
MAIN CIRCUIT
3.3V
12.1V
1.8V
3.3V
2V
0V
0V
3.3V
3.3V
0V
3.3V
3.3V
1.6V 1.6V
0V
3.3V
0V
3.3V
0V
3.3V
1.6V
1.6V
1.6V
1.6V
3.3V
1.6V
1.6V
1.6V
1.6V
1.6V
3.3V
3.3V 0V 0V 0V 0V 3.3V 0V
3.3V
3.3V
12.1V
0V
5.8V
0V
5.8V
3.3V
3.3V
5.8V
0V
5.8V
0V
3.3V
12.1V
3.3V 0V 1.6V 0.4V 0V 1.6V 0.4V
1.6V 0V 0.4V 1.6V 0V 0.4V
3.3V 3.3V 3.3V 0V 0V 0V 3.3V
0V 0V 3.3V 3.3V 3.3V 0V
3.3V 0V 1.6V 0.4V 0V 1.6V 0.4V
1.6V 0V 0.4V 1.6V 0V 0.4V
0.5V
0.4V
1.2V
0.5V
0.4V
1.2V
0.5V
0.4V
1.2V
0.5V
0.4V
1.2V
0.5V
0.4V
1.2V
0.5V
0.4V
1.2V
0.5V
0.4V
1.2V
0.5V
0.4V
1.2V
:POSITIVE VOLTAGE LINE