D-Amp Circuit - Panasonic SA-PT470EB Service Manual

17.5. D-Amp Circuit

1 2 3
SCHEMATIC DIAGRAM - 12
A
F
D-AMP CIRCUIT
B
IC5500
C0JBAB000902
HEX INVERTER
(CLOCK GENERATOR)
C5550 D5502
0.01
C MA2J11100L
1
1A VCC 14
C5556
R5514
0.01
0
6A
D5501 2 1Y 13
MA2J11100L C5557
100P
3 2A
6Y 12
X5501 C5551
H2A7003A0011 390P
5A
4 2Y 11
C5553
100P
5 3A 5Y 10
X5500
H2A6023A0011
6 9
3Y 4A
C5552 R5505
D 390P 100
7 GND 8
4Y
1 O1 VCC 14
E
2 O1 O2 13
3 CP1 O2 12
4 11
CD1 CP2
5 10
D1 CD2
6 SD1 9
D2
8
7
GND SD2
F
IC5501
C0JBAF000716
D-TYPE FLIP-FLOP
G
K5254 0
H
1 2 3
4 5 6
: +B SIGNAL LINE : -B SIGNAL LINE : AUDIO OUTPUT SIGNAL LINE
FHOP
FAN_DC
R5510
470
1 2 3 4 5
OSC2
C5313
R5307 C5312 0.1
C5317
330P
IN+_SW 0.47 5.6K
C5314 R5306
0.47 5.6K
VDDP
OSC2
VSSP
R5310
10
VSSA3
OSC
R5610
Q5603 1.2K
B1ADCE000012
R5611
SWITCH
1.2K
Q5604
R5602
10K B1ABCF000176
MOD_DA
SWITCH
Q5601
B1ABCF000176
MUTE_F
SWITCH
R5609
10K
R5606
10K
MUTE_S
4 5 6
7 8 9
IC5300
C1BA00000487
AUDIO DIGITAL POWER AMP
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
C5316 C5323 C5324 C5322 C5306
0.015 0.015
0.1 220P 0.1
C5307
R5305 C5311
220P 10 220P
R5302
10
C5326 C5325
220P
220P
MODE1_2
MODE1
R5111 120K
MODE2
R5113 68K
R5020 120K
R5019 68K
Q5102
R5218 68K
B1ABCF000176
120K
R5228
Q5101 DC DETECT
R5318 120K
B1ABCF000176
R5328 68K
DC DETECT
Q5602
B1ABCF000176
SWITCH
AGND
7 8 9
121
10 11 12
R5304
21 22 23
100
C5304
330P
C5333 D5304 B0HCMM000019
1000P
K5500 0
D5302 B0HCMM000019
D5303 B0HCMM000019
D5301 B0HCMM000019
L5300
G0A150L00003
1 2
3 4
C5693
SR_+
0.1
SL_+ FL_-
D5645
FR_+ MA2J11100L
FL_+ DC_DET
SW_+
SW_-
C_+ Q5641
C_- 2SC584500L
FAN LOCK DETECT
R5670
0
FAN_GND
Q5644
2SC584500L
FAN MOTOR DRIVE
C5697 D5643
50V1 MA2J11100L
SIGNAL_TRIGGER
D5644
MA2J11100L
1/2 2/2
SA-PT470EB/EF/EG D-AMP
10 11 12
13 14
JK5001
SL-
1 SURROUND L-
SL+
2 SURROUND L+
SR-
3 SURROUND R-
SR+
4 SURROUND R+
FL-
5 FRONT L-
FL+
6 FRONT L+
TO SPEAKERS
FR-
7 FRONT R-
FR+
8 FRONT R+
C-
9 CENTER -
C+
10 CENTER +
SW-
11 SUBWOOFER -
SW+
12 SUBWOOFER +
MODE2
SW_+
3
R5329 D5305 MA2J11100L
10K ECO
2
R5330 D5306 MA2J11100L
10K
4
L5301
G0B9R5K00003
SW+
1 2
1
SW-
3 4
P1
3 2 1
ZJ5410
CN5501
1 FAN DC OUT
2 FAN GND TO FAN
3 FAN LOCK
Q5640
B1BACD000018
FAN MOTOR DRIVE
R5637 10
D5646
MAZ80750ML
R5656
10K
Q5642
2SC584500L
FAN MOTOR DRIVE
C5696
25V22
TO D-AMP
R5660
SECTION (2/2)
10K
5
CIRCUIT
13 14