Samsung sv 255B, Service Manual

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Schematic Diagrams
Samsung Electronics 6-9
IC301 VOLTAGE TABLE WAVEFORM IC301 LA71750M
PIN
1 5.2 5.2 0.7
2 0.0 0.0 0.6
3 2.3 2.3 2.4
4 0.3 0.4 0.8
5 2.3 2.3 2.3
6 2.3 2.3 2.2
7 2.3 2.3 2.2
8 2.3 2.3 2.2
9 2.2 2.2 2.2
10 2.3 2.2 2.3
11 2.4 2.3 2.3
12 0.0 0.0 0.0
13 2.2 2.2 2.2
14 0.0 0.0 0.0
15 2.3 2.3 2.2
16 0.2 5.2 5.1
17 2.3 2.3 2.2
18 5.2 5.2 5.1
19 4.1 4.1 4.0
20 0.0 0.0 0.0
21 1.9 3.2 3.2
22 2.6 2.6 2.6
23 2.6 2.6 2.6
24 5.0 5.0 5.0
25 3.5 0.1 0.1
26 1.3 1.5 1.5
27 2.1 2.1 2.1
28 4.0 4.1 4.0
29 2.6 2.6 2.7
30 0.4 0.0 0.0
31 1.4 1.3 1.2
32 4.7 4.7 4.7
33 2.9 3.0 2.9
34 0.0 0.0 0.0
35 2.0 2.0 2.0
36 3.0 3.0 3.0
37 1.9 2.0 1.9
38 2.1 2.1 2.0
39 9.5 9.5 9.4
40 0.0 0.0 0.0
41 0.0 0.0 0.0
42 5.1 5.2 5.1
43 2.4 2.4 2.4
44 4.1 0.0 0.0
45 2.5 2.5 2.5
46 2.6 2.7 4.6
47 4.2 4.2 4.2
48 2.9 3.0 3.0
49 3.8 3.0 3.0
50 1.9 1.9 1.9
IC301 LA71750M
PLAY STOP REC
MODE
PIN
51 0.0 0.0 0.0
52 1.9 1.9 1.9
53 2.4 2.4 2.4
54 1.9 1.9 1.9
55 5.2 5.2 5.2
56 2.2 2.3 2.3
57 2.2 2.0 2.0
58 2.8 3.1 3.1
59 3.0 2.9 2.9
60 1.6 1.5 1.5
61 1.7 19.0 1.9
62 0.0 0.0 0.0
63 1.2 1.2 1.2
64 0.0 0.0 0.0
65 1.5 1.8 1.8
66 5.2 5.2 5.2
67 0.2 0.2 0.2
68 4.7 4.7 4.7
69 4.5 4.7 4.5
70 2.8 5.2 2.8
71 0.0 3.3 3.3
72 5.0 5.0 5.0
73 1.9 2.2 2.2
74 2.6 2.5 2.5
75 0.7 2.4 2.4
76 0.8 2.4 2.4
77 1.6 1.5 1.5
78 3.4 2.6 2.5
79 1.9 1.9 2.5
80 0.9 0.9 4.2
81 1.1 1.1 1.1
82 0.0 0.0 0.0
83 2.6 0.7 0.0
84 2.7 0.6 0.0
85 0.0 0.0 1.0
86 0.4 0.4 0.0
87 0.7 1.9 2.5
88 0.7 1.9 0.7
89 0.7 1.9 0.7
90 0.7 1.9 0.7
91 5.2 5.2 4.1
92 0.0 0.0 0.0
93 1.9 1.9 4.3
94 1.9 1.9 4.3
95 1.9 1.9 4.3
96 1.9 1.9 4.4
97 0.0 0.0 0.0
98 2.3 2.3 2.3
99 2.3 2.3 2.3
100 2.3 2.3 2.4
IC301 LA71750M
PLAY STOP REC
MODE
Ô
IC301-100
REC/1.5Vp-p
Æ
IC301-94
REC(SP)/3.0Vp-p

IC301-65
PB/2.1Vp-p
ı
IC301-11
REC/102Vp-p
Ò
IC301-21
PB/320mVp-p
Ú
IC301-88
REC(LP)/2.5Vp-p