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Model
SA-BTT770EG SA-BTT770EP SA-BTT775EB SA-BTT775EE SA-BTT775GN SC-BTT775EEK
Pages
127
Size
20.46 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / BLU-RAY DISC HOME THEATER SOUND SYSTEM
File
sa-btt770eg-sa-btt770ep-sa-btt775eb-sa-btt775ee-sa.pdf
Date
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Panasonic SA-BTT770EG / SA-BTT770EP / SA-BTT775EB / SA-BTT775EE / SA-BTT775GN / SC-BTT775EEK Service Manual ▷ View online

121
Step 4 Upset the AV P.C.B..
Step 5 Place AV P.C.B. on an insulated material.
Step 6 Proceed to check and repair the AV P.C.B..
122
12 Voltage & Waveform Chart
Note:
• Indication Voltage Values are in standard values for the unit measured by the DC electronic circuit tester (high-impedance) with
the chassis taken as standard.
Therefore, there may exist some errors in voltage values, depending on the internal impedance of the DC circuit tester. 
• Circuit voltage and waveform described herein shall be regarded as reference information when probing defect point because it
may differ from actual measuring value due to difference of Measuring instrument and its measuring condition and product itself.
12.1. Digital P.C.B. (1/3)
REF NO.
MODE
1
2
3
4
5
POWER ON
0
0
5.0
2.8
0
STANDBY
0
0
5.0
2.8
0
REF NO.
MODE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
POWER ON
1.4
0
0
0
0
0
0
1.0
1.2
3.3
1.6
0
1.4
3.3
3.3
3.3
2.2
1.2
3.3
0
STANDBY
1.4
0
3.3
0
3.3
0
0
0.7
1.2
3.3
1.6
0
1.5
3.3
3.3
3.3
2.2
1.0
3.3
0
REF NO.
MODE
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
POWER ON
0
0
3.3
3.3
0
0
3.3
3.3
3.3
0
0
3.3
0
1.1
0
3.3
3.3
0
0
0
STANDBY
0
0
3.3
3.3
0
0
3.3
3.3
3.3
0
0
0
0
1.0
0
3.3
3.3
0
0
0
REF NO.
MODE
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
POWER ON
3.3
3.3
0
3.3
3.3
3.3
3.3
3.3
1.1
0
3.3
2.7
2.7
0
0
0.9
0
3.3
3.1
3.3
STANDBY
3.3
3.3
0
3.3
3.3
3.3
3.3
3.3
1.0
0
3.3
2.7
2.7
0
0
1.0
0
3.3
3.3
3.3
REF NO.
MODE
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
POWER ON
0
0
0
3.1
3.1
0
3.1
3.1
3.1
0
0
3.1
0
0
3.1
3.1
0
0.9
1.0
3.1
STANDBY
0
0
0
0
3.3
0
3.3
0
3.3
0
0
3.3
0
3.3
3.3
3.3
0
0.9
1.0
3.1
REF NO.
MODE
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
POWER ON
0.9
3.1
3.3
0
3.3
3.3
3.3
3.3
3.3
3.3
3.3
0
3.3
0
0
3.3
3.3
3.0
3.3
3.3
STANDBY
0.9
3.3
3.3
0
3.3
3.3
3.3
3.3
3.3
3.3
3.3
0
3.3
0
0
3.3
3.3
3.0
3.3
3.3
REF NO.
MODE
1
2
3
4
5
6
7
8
POWER  ON
0
0
0
0
3.1
3.1
0
3.1
STANDBY
0
0
0
0
3.1
3.1
0
3.1
REF NO.
MODE
1
2
3
POWER ON
3.2
0
6.0
STANDBY
3.2
0
6.0
REF NO.
MODE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
POWER ON
2.8
4.4
1.5
5.0
0
0
-7.0
0
6.7
7.0
5.0
2.8
1.6
0
4.4
3.3
STANDBY
2.8
4.4
1.5
5.0
0
0
-7.0
0
6.7
7.0
5.0
2.8
1.6
0
4.4
3.3
REF NO.
MODE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
POWER ON
1.7
2.5
2.1
1.0
1.5
0
0
21.4
16.3
20.4
18.6
18.0
21.4
21.4
19.0
1.8
1.0
2.1
2.5
2.5
STANDBY
1.7
2.5
2.1
1.0
1.6
0
0
22.1
17.0
21.3
19.8
18.0
22.1
22.1
19.6
1.7
1.0
2.1
2.5
2.5
IC2901
SA-BTT770EG/EP,SA-BTT775EB/EE/GN DIGITAL P.C.B.
IC1101
IC2800
IC2300
IC2301
IC2302
IC2300
IC2300
IC2300
IC2300
123
12.2. Digital P.C.B. (2/3)
12.3. Digital P.C.B. (3/3)
REF NO.
MODE
1
2
3
4
5
6
7
8
POWER ON
3.2
0
0
1.9
5.2
0
0
4.8
STANDBY
3.3
0
0
1.8
5.1
0
0
4.9
REF NO.
MODE
1
2
3
4
5
POWER ON
5.1
0
3.2
0
5.2
STANDBY
4.9
0
3.1
0
5.1
REF NO.
MODE
1
2
3
4
5
6
1
2
3
4
5
6
E
C
B
POWER ON 11.6
11.6
18.9
21.6
11.6
11.6
5.2
5.2
20.6
21.6
5.2
5.2
-6.9
-10.3
-7.4
STANDBY
11.3
11.2
19.5
22.1
11.5
11.5
5.2
5.2
21.3
22.1
5.2
5.2
-6.9
-10.3
-7.4
REF NO.
MODE
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
POWER ON
0
3.2
0
11.3
11.3
10.6
0
3.0
0
3.1
3.1
3.0
0
0
3.0
STANDBY
0
3.1
0
11.5
11.5
10.3
0
2.9
0
3.1
3.0
3.0
0
0
3.2
REF NO.
MODE
1
2
3
4
5
6
7
8
DVD PLAY
4.4
5.0
5.0
-7.0
5.0
4.8
5.0
12.0
STANDBY
4.4
5.0
5.0
-7.0
5.0
4.8
5.0
12.0
REF NO.
MODE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
DVD PLAY
1.6
1.6
1.6
0.6
0
0
0
0
0
0
0
3.3
3.3
3.3
3.3
3.2
1.6
0
3.2
0
STANDBY
1.6
1.7
0
0
0
0
0
0
0
0
0
3.3
0
3.3
3.3
3.2
1.6
0
3.2
0
REF NO.
MODE
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
DVD PLAY
0
0
0
1.5
1.5
0
0
3.3
1.0
0
0
0
1.2
1.2
0.6
1.6
1.6
1.2
3.3
1.7
STANDBY
0
0
0
1.5
1.5
0
0
3.2
1.0
0
0
0
0
0
0
1.6
1.6
0
3.2
1.6
REF NO.
MODE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
DVD PLAY
0.2
0.2
0
0
0
5.2
3.1
0
0
0.8
0
0.8
3.1
0
0
0
STANDBY
0.2
0.2
0
0
0
4.9
3.1
0
0
0.9
0
0.9
3.1
0
0
0
REF NO.
MODE
1
2
3
4
5
6
7
8
DVD PLAY
0.3
3.2
0
0
3.2
3.2
0
3.2
STANDBY
0.3
3.1
0
0
3.1
3.1
0
3.1
REF NO.
MODE
1
2
3
4
5
6
7
8
iPod
0
5.0
4.9
3.1
0.5
5.0
5.0
5.0
STANDBY
0
4.9
4.9
3.1
0.5
5.0
5.0
5.0
SA-BTT770EG/EP,SA-BTT775EB/EE/GN DIGITAL P.C.B.
IC2303
IC7002
IC57000
IC2001
IC2001
IC54900
IC7003
IC1102
QR7071
Q7007
Q7071
QR7001
QR7014
Q2902
Q2903
Q7004
REF NO.
MODE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
iPod
0
0.8
0
3.3
3.3
0
0
0
0
0
0
3.1
3.1
0
0
0
0
0
0
0
STANDBY
0
0.8
0
0
3.3
0
0
0
0
0
0
3.1
3.1
0
0
0
0
0
0
0
SA-BTT770EG/EP,SA-BTT775EB/EE/GN DIGITAL P.C.B.
IC2400
124
12.4. AV P.C.B. 
12.5. Panel P.C.B. 
REF NO.
MODE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
DVD PLAY
4.8
0
0
2.1
3.3
0
3.1
1.5
1.5
0
0
0
0
0
0
5.0
2.5
2.5
0
2.5
STANDBY
5.1
0
0
2.2
3.2
0
0
1.8
2.3
0
0
0
0
0
0
5.2
2.7
2.7
0
2.6
REF NO.
MODE
21
22
23
24
25
26
27
28
29
30
31
32
DVD PLAY
2.5
0
1.1
1.0
0
1.6
1.7
0
1.7
1.6
0
2.3
STANDBY
2.6
0
1.3
1.3
0
1.8
1.8
0
1.8
1.8
0
2.3
REF NO.
MODE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
TUNER
0
2.8
0
0
3.1
0
3.3
0
2.8
3.3
3.3
0
2.8
2.8
2.8
0
2.8
0
0
0
STANDBY
0
2.8
0
0
3.1
0
3.3
0
2.8
3.3
3.3
0
2.8
2.8
2.8
0
2.8
0
0
0
IC2501
IC2501
IC2952
SA-BTT770EG/EP,SA-BTT775EB/EE/GN AV P.C.B.
REF NO.
MODE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
POWER ON
0
0
0
0
2.0
0
1.8
3.0
3.2
0
0
0
3.3
-23.7 -23.7 -21.5 -23.7 -17.1 -12.7 -17.1
STANDBY
0
0
0
0
1.9
0
1.8
3.0
3.0
0
0
0
3.3
-23.6 -23.6 -23.6 -23.6 -14.9 -19.3 -17.1
REF NO.
MODE
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
POWER ON -23.7 -23.7 -23.7 -19.3 -19.3 -23.7 -23.7 -17.1 -19.3 -24.1 -12.9 -23.8 -21.7 -21.7 -21.7 -21.7 -21.7 -21.7 -21.7 -21.7
STANDBY
-23.6 -21.5 -23.6 -19.3 -19.3 -23.6 -21.5 -19.3 -14.9 -24.1 -17.2 -23.8 -21.7 -21.7 -21.7 -21.7 -21.7 -21.7 -21.7 -21.7
REF NO.
MODE
41
42
43
44
POWER ON -21.6 -21.6
3.3
0
STANDBY
-21.6 -21.6
3.3
0
REF NO.
MODE
E
C
B
E
C
B
E
C
B
POWER ON
0
0
11.2
1.2
3.3
1.7
0
1.7
3.3
STANDBY
0
0
11.2
1.2
3.3
1.7
0
1.7
3.3
SA-BTT770EG/EP,SA-BTT775EB/EE/GN PANEL P.C.B.
IC6001
IC6001
IC6001
Q6100
Q6201
QR6201
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