TDA8177 (field process circuit)
Pin voltage and resistance to earth (the same testing method as above described.)
①
Volt.(V)
0.93
Resistance
to
3.3K
earth (Ω)
LA75503 (pictures, accompany sound and intermediate frequency amplification)
Pin voltage and resistance to earth (the same testing method as above described.)
(1)
Volt.(V)
3.2
Resistance
7.2M
to earth (Ω)
(11)
Volt.(V)
4.2
Resistance
9.5K
to earth (Ω)
(21)
Volt.(V)
3.5
Resistance
7.2M
to earth (Ω)
TDA6111Q (audio frequency amplifying circuit)
Pin voltage and resistance to earth (the same testing method as above described.)
①
Volt.(V)
3.3
Resistance
1.2K
to earth (Ω)
Testing signals for above are digital photo images.
②
③
13.8
-11.6
2.8M
(2)
(3)
(4)
2.1
1.6
2.4
7.2M
7.6M
3K
(12)
(13)
(14)
1.8
2.5
1.9
219K
24K
10.6K
(22)
(23)
(24)
2.2
2.2
2.7
6.7M
6.1K
6.6M
②
③
④
12
3.3
0
1K
1.3K
0
④
⑤
-13.8
-0.13
7.9
(5)
(6)
(7)
2.0
2.6
4.2
98K
58.6K
6.7M
(15)
(16)
(17)
2.5
1.7
5
6.8M
23.6K
2K
⑤
⑥
⑦
7.2
212
137.6
14K
∞
∞
22
Circuit Explanation
⑥
⑦
12.7
0.98
3.3K
(8)
(9)
4.5
4.5
2.5K
2.5K
(18)
(19)
0
2.9
0
15.5K
⑧
⑨
156.3
136.9
∞
101.3K
(10)
0.1
9.5K
(20)
2.9
15.5K