创维数码5000-2588彩电集成电路实测检修数据
整理日期:2006-7-20 22:17:04 资料编辑: 点击次数:
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存储器24C04-4A99A819 |
| 引脚 | 符 号 | 直流 电压(V) |
对地电阻(kΩ) | |
| 黑笔地 | 红笔地 | |||
| 1 | A0 | 0 | 0 | 0 |
| 2 | A1 | 0 | 0 | 0 |
| 3 | A2 | 0 | 0 | 0 |
| 4 | VSS | 0 | 0 | 0 |
| 5 | SDA | 4.2 | 5.5 | 11.5 |
| 6 | SCL | 4.2 | 5.5 | 11.5 |
| 7 | GND | 0 | 0 | 0 |
| 8 | VCC | 5 | 4.5 | 7 |
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色度放大电路TEA 2014A数据 |
| 引脚 | 直流 电压(V) |
对地电阻(kΩ) | |
| 黑笔地 | 红笔地 | ||
| 1 | 0 | 0 | 0 |
| 2 | 3.1 | 1.6 | 1.6 |
| 3 | 4.5 | 6.2 | 7.5 |
| 4 | 9.4 | 10 | ∞ |
| 5 | 0 | 0 | 0 |
| 6 | 3.2 | 0.62 | 0.62 |
| 7 | 11.6 | 0.5 | 0.78 |
| 8 | 2.2 | 6.2 | 8.5 |
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亮度放大电路TEA 2014A数据 |
| 引脚 | 直流 电压(V) |
对地电阻(kΩ) | |
| 黑笔地 | 红笔地 | ||
| 1 | 0 | 0 | 0 |
| 2 | 3.2 | 1.6 | 1.6 |
| 3 | 4.6 | 6.2 | 7.3 |
| 4 | 9.3 | 10 | ∞ |
| 5 | 0 | 0 | 0 |
| 6 | 3.2 | 2.3 | 2.3 |
| 7 | 11.5 | 0.5 | 0.8 |
| 8 | 2.1 | 6.2 | 8 |
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亮度增强放大电路LA7210检修数据 |
| 引脚 | 直流 电压(V) |
对地电阻(kΩ) | |
| 黑笔地 | 红笔地 | ||
| 1 | 9.6 | 5.8 | 8 |
| 2 | 9.2 | 5.8 | 7 |
| 3 | 9.2 | 5.8 | 7 |
| 4 | 5.6 | 5.8 | 8 |
| 5 | 0 | 0 | 0 |
| 6 | 9.7 | 8 | 80 |
| 7 | 0.52 | 5 | 6.8 |
| 8 | 10.7 | 6 | 8 |
| 9 | 11.9 | 0.48 | 0.74 |
| 10 | 0 | 5.5 | 6.2 |
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频道转换电路AN5071 |
| 引脚 | 符 号 | 直流 电压(V) |
对地电阻(kΩ) | |
| 黑笔地 | 红笔地 | |||
| 1 | BU | 0 | 2 | 2.3 |
| 2 | BL | 8.9 | 2 | 2.3 |
| 3 | BAND0 | 2.25 | 6.2 | 7.4 |
| 4 | BAND1 | 0 | 6.2 | 7.4 |
| 5 | GND | 0 | 0 | 0 |
| 6 | ZENER | 0 | 5 | 200 |
| 7 | BH | 0 | 1 | 1 |
| 8 | NC | 0 | 5.6 | ∞ |
| 9 | VCC | 9 | 0.3 | 0.3 |
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电视信号放大K6265K |
| 引脚 | 直流 电压(V) |
对地电阻(kΩ) | |
| 黑笔地 | 红笔地 | ||
| 1 | 0.01 | 7.5 | 10 |
| 2 | 0 | 0 | 0 |
| 3 | 0 | 0 | 0 |
| 4 | 2.8 | 6.8 | 9.5 |
| 5 | 2.8 | 6.8 | 9.5 |
| 6 | 0 | ∞ | ∞ |
| 7 | 0 | ∞ | ∞ |
| 8 | 0 | 0 | 0 |
| 9 | 0 | ∞ | ∞ |
| 10 | 0.02 | 7.2 | 7.5 |
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音频转换电路TC4052 |
| 引脚 | 符 号 | 直流 电压(V) |
对地电阻(kΩ) | |
| 黑笔地 | 红笔地 | |||
| 1 | 0Y | 3.5 | 19 | 7.2 |
| 2 | 2Y | 3.5 | 19 | 7.2 |
| 3 | YCOM | 4.1 | 3.5 | 3.5 |
| 4 | 3Y | 3.5 | 19 | 7.2 |
| 5 | 1Y | 3.5 | 19 | 7.2 |
| 6 | 1VH | 5.16 | 6.5 | 8.2 |
| 7 | VEE | 0 | 0 | 0 |
| 8 | VSS | 0 | 0 | 0 |
| 9 | B | 0.2 | 6.5 | 7.5 |
| 10 | A | 0.2 | 6.5 | 7.5 |
| 11 | 3X | 3.5 | 19 | 7.2 |
| 12 | 0X | 3.5 | 19 | 7.2 |
| 13 | XCOM | 4.1 | 3.5 | 3.5 |
| 14 | 1X | 3.5 | 19 | 7.2 |
| 15 | 2X | 3.5 | 19 | 7.2 |
| 16 | VDD | 11.8 | 0.48 | 0.75 |
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音调TA8173AP |
| 引脚 | 符 号 | 直流 电压(V) |
对地电阻(kΩ) | |
| 黑笔地 | 红笔地 | |||
| 1 | GND | 0 | 0 | 0 |
| 2 | LF1 | 5.95 | 7.5 | 8 |
| 3 | PS1 | 5.95 | 7.5 | 8 |
| 4 | PS2 | 5.95 | 7.5 | 8 |
| 5 | PS3 | 5.95 | 7.5 | 8 |
| 6 | PS4 | 5.95 | 7.5 | 8 |
| 7 | LF2 | 5.95 | 7.5 | 8 |
| 8 | VCC | 12 | 0.48 | 0.74 |
| 9 | ROUT | 5.9 | 7.5 | 8 |
| 10 | RLPF | 5.9 | 7.5 | 8 |
| 11 | LOUT | 5.9 | 7.5 | 8 |
| 12 | LLPF | 6 | 7.5 | 8 |
| 13 | D/NSW | 5.2 | 7.5 | 8 |
| 14 | LIN | 5.96 | 7.5 | 8 |
| 15 | REF | 6 | 5 | 5 |
| 16 | RIN | 5.96 | 7.5 | 8 |
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1H延迟电路MN3868 |
| 引脚 | 符 号 | 直流 电压(V) |
对地电阻(kΩ) | |
| 黑笔地 | 红笔地 | |||
| 1 | VDD2 | 7.96 | 3.7 | 3.7 |
| 2 | NC | 0 | ∞ | ∞ |
| 3 | VSS2 | 0 | 0 | 0 |
| 4 | NC | 0 | ∞ | ∞ |
| 5 | SCP | 1 | 6.7 | 9 |
| 6 | PC-OUT | 6.5 | 4.4 | ∞ |
| 7 | VCCA | 4.8 | 4.4 | ∞ |
| 8 | NC | 0 | ∞ | ∞ |
| 9 | VDD1 | 5 | 2 | 2 |
| 10 | VSS1 | 0 | 0 | 0 |
| 11 | R-Y-OUT | 5.12 | 4.4 | 8 |
| 12 | B-Y-OUT | 5.13 | 4.4 | 8 |
| 13 | VCCB | 5.8 | 4 | ∞ |
| 14 | B-Y-IN | 2.3 | 3.7 | ∞ |
| 15 | VBB | 2.9 | 3.7 | 3.7 |
| 16 | R-Y-IN | 2.3 | 3.7 | ∞ |
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