Panasonic TX-28DK2 Service Manual ▷ View online
AUDIO BLOCK DIAGRAM
9
I2S_DA_IN_2
I2S_DA_IN_1
I2S_DA_OUT
I2S_DA_WS
I2S_DA_CL
E12
3
4
5
6
7
E - BOARD
3
4
DACA_R
DACA_L
E22
To K7
Q2304
Q2302
IC2101
SC1_OUT_R 30
SC1_OUT_L 31
SC1_IN_R 42
SC1_IN_L 41
SC2_OUT_R 27
SC2_OUT_L 28
SC2_IN_R 40
SC2_IN_L 38
To K3
18 I2S_DA_IN_2
12 I2S_DA_IN_1
11 I2S_DA_OUT
10 I2S_DA_WS
9 I2S_DA_CL
21 DACA_R
22 DACA_L
AUDIO
PROCESSOR
TUNER
Q101
Q102
47 ANA_IN1+
Q2102
Q2103
IC251
5 R
R 7
2 L
L 11
AUDIO
OUTPUT
Q252
Q251
SC3_IN_L 37
SC3_IN_R 38
DACM_R 24
DACM_L 25
AV2
AV1
1 R OUT
3 L OUT
1 R OUT
3 L OUT
2 R IN
6 L IN
2 R IN
6 L IN
E16A
1
M1
1
2
2
AV3
R
HEADPHONE
2 L
3 R
M5
3
M4
1
E17
10
M2
10
8
8
M - BOARD
M6
3
1
L
From K8
Headphone R
Headphone L
R
L
DOLBY BLOCK DIAGRAM
10
K5
1
3
5
C2
1
3
5
JK2702
To E12 K3
3
4
5
Q2425
Q2426
Q2428
Q2401
Q2402
Q2403
Q2404
Q2405
Q2406
JK2401
1
3
5
7
14
12
10
8
IC2402
To E22 K7
1
3
C5
1
K8 To M6
1
3
IC2404
1
3
5
7
IC2704
IC2703
IC2702
K6
1
Q2410
Q2409
1
1
1
4
4
4
Audio Left
Audio Right
Headphone Left
Headphone Right
Surround
Centre
Woofer
Surround L
Centre
Surround R
JK2402
Woofer
Surround L
Centre Out
Left Front
Surround R
Right Front
Q2427
Q2423
Q2419
Q2418
Q2417
Q2421
Q2420
I2S_DA_OUT_2
I2S_DA_OUT_1
I2S_DA_IN
6
7
I2S_WS
I2S_CL
Q2704
Q2705
K - BOARD
C - BOARD
OPERATIONAL
AMPLIFIER
HEADPHONE
AMPLIFIER
AUDIO
AMPLIFIER
AUDIO
AMPLIFIER
AUDIO
AMPLIFIER
19
11
12
11
12
IC2401
25
24
22
21
27
10
9
DOLBY
PROCESSOR
Q2703
CONTROL BLOCK DIAGRAM
11
H3
1
E63
1
E18
6
5
4
3
SDA 1
SCL 1
SDA 2
SCL 2
SERVICE / TEST
IC1101
TUNER
IC601
50
SCL 2
SDA 2
4
3
SDA 1
SCL 1
Q451
71
60
Q854
52
Q853
74
81
AV2
8
10
AV1
8
10
12
Q856
75
Q851
Q1106
Q1105
Q1107
Q1104
51
72
73
AV LINK
SLOW 2
SLOW 1
SCL 1
SDA 1
59
58
Q3006
Q3007
55
VPROT
KEYSCAN
ON/OFF
R.C.
L.E.D.
PROT 1
SLOW 2
OUT
IN
S
L
OW
1
SERVI
C
E
SCL
SDA
48
49
SCL
SDA
H - BOARD
E - BOARD
5
IC3401
VIDEO
SWITCHING
IC2101
8
7
4
AUDIO
PROCESSOR
MICRO
PROCESSOR
VIDEO
PROCESSOR
IC1103
6
5
EAROM
K2
3
E11
3
4
4
K - BOARD
Q3401
IC2401
7
8
Q1051
M1
8
E16A
8
7
7
M2
5
E17
5
IC1061
REMOTE
CONTROL
RECEIVER
D1061
Q1062
LOCAL
KEYS
SWITCH
MATRIX
M - BOARD
DOLBY
PROCESSOR
POWER SUPPLY BLOCK DIAGRAM
12
M11
4
1
H - BOARD
D868
IC801
T801
IC251
D850
TUNER
Q850
IC851
IC853
D454
Q853
IC1101
IC1102
IC1103
IC2101
T802
RL801
5V SBY
5V SBY
5V
5V
IC601
8V
2
43
66
1
31
32
8
33
46
15
58
3
4
3
1
3
1
S4
B1
P2
P1
S5
S2
S7
10
T551
9
8
5
6
2
12V
200V
33V
-14V
14V
27V
150V
29V
7V
15V
5V
D867
Q852
Q854
Q855
1
D805
R805
R814
IC850
1
2
D862
R854
33V
16
IC1104
2
RESET
MICRO
PROCESSOR
AUDIO
PROCESSOR
VIDEO
PROCESSOR
EPROM
EAROM
IC1105
2
RESET
REG
REG
REG
IC3401
7
VIDEO
SWITCHING
IC701
6
EW
CORRECTION
POWER
SUPPLY
IC451
6
3
1
V-OUTPUT
AUDIO
OUTPUT
~
+
~
D801
E - BOARD
Y - BOARD
E3
2
Y3
2
E1
4
1
E2
2
1
R802
Line
Filter
E62
1
H3
2
IC351
6
RGB
OUTPUT
R2715
18V
-18V
R2714
Q2702
Q2701
22V
IC2703
3
5
IC2704
3
5
E5
3
C1
3
C - BOARD
E11
7
K2
7
5
5
12V
Q2407
IC2403
1
2
33
IC2401
IC2402
IC2404
5
6
16
46
6
16
46
4
8
K - BOARD
8
K5
C2
8
D2720
IC2701
3
POWER
SUPPLY
IC2702
3
5
AUDIO
AMPLIFIER
S1
S7
F1
P2
T2701
S2
AUDIO
AMPLIFIER
AUDIO
AMPLIFIER
REG
OPERATIONAL
AMPLIFIER
HEADPHONE
AMPLIFIER
DOLBY
PROCESSOR
Degauss Coil
M10
4
1
Line
Filter
Mains
In
M - BOARD
M2
3
E17
3
IC1061
REMOTE
CONTROL
RECEIVER
F802
S
802
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