Panasonic SA-DT300E, Руководство по обслуживанию

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A
B
C
D
E
F
G
H
1 2 3 4 5 6 7 8 9 10 11 12
SCHEMATIC DIAGRAM-6
IC011
C0ZBZ0000650
DIGITAL AUDIO
PWM PROCESSOR
2
25
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
CN102
GATE BIAS
GND
ERR
SHTDWN
+B(3.3V)
+B(5V)
RST
MUTE SUB
MUTE REAR
MUTE FRNT
FRQ SHIFT
GND
CNT
GND
SUB
GND
SR
GND
SL
GND
FL
GND
FR
NC
1
FAN DET
IC022
C0FBAJ000009
16bit A / D CONVERTER
IC023
C0FBAJ000009
16bit A / D CONVERTER
9 10 11 12 13 14 8
7 6 5 4 3 2 1
DOUT
BYP
AS
FMT
Vcc
AGND
VREF2
VREF1
LRCK BCK SCKI V
DD
DGND VINR VINL
C155
10V4.7
C156 10V4.7
C143
16V1 R165
1K
C191
470P
C192
470P
C144
16V1 R166
1K
C151
10V4.7
C152 10V4.7
C141
16V1 R163
1K
C189 470P
C190 470P
C142
16V1 R164
1K
C158
0.1
C154
0.1
9 10 11 12
13 14
8
7 6 5 4 3 2 1
DOUT
BYP
AS
FMT
Vcc
AGND
VREF2
VREF1
LRCK BCK SCKI V
DD
DGND VINR VINL
C161
10V4.7
C157
0.1
C160
10V4.7
C153
0.1
R142
4.7
R143
4.7
Z005
IC024
C0FBAK000008
24bit A / D CONVERTER
15 16 17 18 19 20 14
7 6 5 4 3 2 1
V
DD
SCKI
OSR
FMT0 FMT1
MODE0
MODE1
PDOWN AGND Vcc VREF2 VREF1 VINR VINL
8
13
9 10
BYP
AS
FSYNC
LRCK
11 12
DGND
DOUT
BCK
C162
10V4.7
C150
0.1
C159
10V4.7
R141
4.7
C188 470P
C187 470P
A
B
A
B
R162
1K
C140
16V1
C139
16V1 R161
1K
C
D
E
F
C
D
E
F
Z004
C149
0.1
C194
1
IC020
TC7WH74FUTL
LOGIC CONT.
(D-TYPE FLIP FLOP)
IC051
C0DAZZC00003
REGULATOR
IC018
C0JBAB000423
INVERTER
IC017
C0JBAD000153
NOR GATE
IC014
C0JBAZ001870
BUFFER
G
D S
R051
1.2K
Z006
R058
1.2K
D051
MA8120MTX
D052
MA8120MTX
R057
100
R056
100
R055
1K
R054 220K
R053
10K
C100
0.1
Q051
B1DEGL000004
STABILIZER
3
2
1
IC019
C0JBAB000423
INVERTER
1 2 3
5 6 7 8
4
CK D
PR Q
Q Vss
V
DD
CLR
Q002
XN0431100L
SWITCHING
C138
0.1
R167
3.3K
Q001
UN5111TX
SWITCHING
C137
0.1
C193
0.1
C175
0.1
R138
1K
R137
1M
X131
C134
18P
C133
18P
R139
1M
R140
1K
C135
18P
C136
18P
X132
CN101
E001
C186
1000P
C199
1000P
C177
1000P
Z003
C130
0.1
39
33
32
31
28
23 22 20 19 18 17 15 14
DVss3
R
ALID
L
MOD0 MOD1 MOD2 SDIN LRCLK SCLK MCLK
OUT
DVss1 DV
DD
1
DVss1
DV
SS
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
3L
PWM P L
PWM M L
NC
NC
DV
DD
2
DVss2
PWM P R
PWM N R
NC
NC
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
R178 3.9K
R184
6.8K
A
B
R176 3.9K
R177 3.9K
R175 3.9K
Z008
R180 1K
R179 1K
Z002
A
B
C
D
E
F
G
H
I
J
L
M
N
O
P
Q
A
B
C
D
R183
6.8K
R182
6.8K
R181
6.8K
Z007
A
B
A
R149
47
B
C
R148 47
D
R147 47
C124
0.1
C121
0.1
R136
0
R188
0
R129
22
C127
0.1
R132
4.7
C181
47P
C180 680P
R157
2.4K
C196 330P
D
R190
0
C1016
0.1
C1015
0.1
C1014
0.1
C1013
0.1
Z001
K
R
5 4
1 2 3
Vcc
GND A B
Y
3
Vref
2 1
2 1 3
4 5
OE
GND
Vcc
A
Y
2 1
3
4 5
NC GND
Vcc
A
Y
2 1
3
4 5
NC GND
Vcc
A
Y
GND
REF
R052
100K
DIGITAL AMP CIRCUIT
SA-DT300(E,EB,EG) DIGITAL AMP CIRCUIT DIAGRAM
To MAIN CIRCUIT
(W705,W706)
on SCHEMATIC
DIAGRAM-5/53-F
C
To MAIN CIRCUIT
(CN720)
on SCHEMATIC
DIAGRAM-5/53-G,H
C
2.1V 2.1V 4.6V 1.5V 1.6V 1.6V
1.2V 4.6V 4.6V 3V 2.1V
2.1V 2.1V 4.6V 1.5V 1.6V 1.6V
4.6V 4.6V 3V 2.1V 1.2V
2.2V 2.2V 2.2V 4.4V 4.4V 3.2V
3.2V
1.6V
3.2V
1.2V 1.6V
1.7V 3.2V
2.5V 17.9V
27.7V
30.4V
26.7V
1.6V 1.3V 1.3V
1.4V 3.2V 3.2V 3.2V
1.4V
1.3V 3.2V
3.2V
0.6V
3.2V
3.2V
3.2V 3.2V
0.6V
3.2V
1.3V 0V
1.6V 3.2V
0V
0V 0.6V
1.6V
3V
1.8V
0V
0V
2.9V
3.2V
3.2V
3.2V
3.2V 1.7V 1.5V 1.6V 1.2V 3.2V 3.2V 3.2V
3.2V
1.6V
1.6V
3.2V
1.6V
1.6V
3.2V
3.1V 3.2V 0V 0V 3V
3.2V
27.7V
3.7V
P-P
0.2 s. 1V/DIV.
:POSITIVE VOLTAGE LINE :AUDIO SIGNAL LINE