Zenith DVT316 Series, Service Manual

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2-17 2-18
1.LH-D6530(MAIN)
1).IC101(LC876748C-52K, MICOM)
PIN No.
Volt(V) PIN No. Volt(V) PIN No. Volt(V) PIN No. Volt(V) PIN No. Volt(V)
1 2.15V 21 4.88V 41 -31.V 61 81
2 4.8V 22 3.94V 42 -28.V 62 82
3 1.36V 23 3.26V 43 -29.V 63 83
4 24 3.26V 44 -25.V 64 2.2V 84
5 25 0 45 -32.V 65 85 3.3V
6 26 2.75V 46 4.85V 66 86 1.8V
7 27 4.85V 47 -31.V 67 87 3.17V
8 28 4.85V 48 -31.V 68 88 3.3V
9 29 49 -26.V 69 89 0
10 30 -31.V 50 -25.V 70 3.26V 90 4.88V
11 31 -31.V 51 -32.V 71 3.15V 91 1.5V
12 32 -31.V 52 -26.V 72 5.V 92
13 33 -31.V 53 -26.V 73 4.95V 93
14 0 34 -31.V 54 -26.V 74 4.96V 94
15 2.68V(9.8304MHz) 35 -31.V 55 -26.V 75 95 0
16 2.94V(9.8304MHz) 36 -31.V 56 -32.V 76 96 0
17 4.89V 37 -31.V 57 -32.V 77 97 0
18 4.86V 38 -31.V 58 -32.V 78 98 2.7V
19 39 -31.V 59 -25.V 79 99 2.6V
20 4.88V 40 -31.V 60 0 80 100 2.6V
2).IC201(AK5365VQ, ADC & FUCTION IC)
PIN No.
Volt(V) PIN No. Volt(V) PIN No. Volt(V) PIN No. Volt(V)
1 12 2.5V 23 LRCK 34 0
2 0 13 2.5V 24 MCLK 35 0
3 ADATA4_L_IN 14 2.5V 25 3.3V 36 ADATA1_R_IN
4 0 15 2.5V 26 3.3V 37 0
5 ADATA3_L_IN 16 5.V 27 0 38 ADATA2_R_IN
6 0 17 0 28 0 39 0
7 ADATA2_L_IN 18 2.5V 29 0 40 ADATA3_R_IN
8 0 19 0 30 0 41 0
9 ADATA1_L_IN 20 3.3V 31 3.3V 42 ADATA4_R_IN
10 2.5V 21 ADATA_OUT 32 3.3V 43 0
11 2.5V 22 BCK 33 3.9V 44
3).IC202(AK4117VF-E2, DIR IC)
PIN No.
Volt(V) PIN No. Volt(V)
1 0 13 ADATA_IN
2 3.3V 14 MCLK
3 15
4 16
5 SPDIF_IN 17
6 3.3V 18
7 0 19 3.3V
8 2.2V(12.288MHz) 20 3.3V
9 21
10 LRCK 22
11 BCK 23 3.3V
12 ADATA_OUT 24 0
4).IC203(74VHC244MTCX, BUFFER IC)
PIN No.
Volt(V) PIN No. Volt(V)
1 0 11 ADATA1
2 0 12 ADATA2
3 LRCK 13 ADATA0
4 14 ADATA3
5 BCK 15 BCK
6 ADATA3 16
7 ADATA0 17 LRCK
8 ADATA2 18 0
9 ADATA1 19 0
10 0 20 3.2V
5).IC301(PS9818, DAP IC)
PIN No.
Volt(V) PIN No. Volt(V) PIN No. Volt(V) PIN No. Volt(V) PIN No. Volt(V)
1 0 21 0 41 PWM_OUT 61 PWM_OUT 81 0
2 0 22 3.3V 42 2.5V 62 PWM_OUT 82 3.3V
3 2.35V 23 ADATA0 43 0 63 0 83 3.3V
4 5.V 24 ADATA1 44 0 64 0 84 0
5 2.35V 25 ADATA2 45 PWM_OUT 65 3.3V 85 0
6 2.32V 26 ADATA3 46 PWM_OUT 66 2.5V 86 2.27(12.288MHz)
7 0.89V 27 47 3.3V 67 PWM_OUT 87 3.3V
8 0 28 0 48 PWM_OUT 68 PWM_OUT 88
9 0 29 3.3V 49 PWM_OUT 69 0 89
10 3.3V 30 50 0 70 PWM_OUT 90
11 0 31 51 PWM_OUT 71 PWM_OUT 91 2.5V
12 0 32 52 PWM_OUT 72 3.3V 92 0
13 2.5V 33 53 0 73 0 93
14 0 34 2.5V 54 PWM_OUT 74 PWM_OUT 94 3.3V
15 0 35 0 55 PWM_OUT 75 PWM_OUT 95 0
16 0 36 PWM_OUT 56 3.3V 76 3.2V 96 4.89V
17 0 37 PWM_OUT 57 0 77 0 97
18 0 38 0 58 PWM_OUT 78 1.5V 98
19 BCK 39 3 59 PWM_OUT 79 1.8V 99
20 LRCK 40 PWM_OUT 60 0 80 2.5V 100
6).IC501(NJM4580M, OP AMP IC)
PIN No.
Volt(V) PIN No. Volt(V)
1 Audio1_L_OUT 5 A_IN
2 Audio1_L-_IN 6 Audio1_R-_IN
3 A_IN 7 Audio1_R_OUT
4 -11.8V 8
7).IC502(NJM4580M, OP AMP IC)
PIN No.
Volt(V) PIN No. Volt(V)
1 S/W_OUT 5 S/W_OUT
2 S/W-_IN 6 S/W_OUT
3 S/W+_IN 7 S/W_OUT
4 -11.8V 8 11.9V
8).IC503(NJM4580M, OP AMP IC)
PIN No.
Volt(V) PIN No. Volt(V)
1 H/Phone_L_OUT 5 H/_IN
2 H/Phone_L-_IN 6 H/Phone_R-_IN
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VOLTAGE SHEET (IC&TR)