5810电路板测试点对照说明Test pointDescriptionfu nctionＲeference valueTP1电源地电路电压参考点,所有电压都是以此为基准.0+/-1欧ＰＣＢ板损坏TP2+12V为前置运放LF444提供正电源12+/-0.5V78LM12坏；电路某处短路TP3-12V为前置运放LF444提供负电源-12+/-0.5V'H7660坏；电路某处短路可能超标原因12345678ABCD87654321DCBATitleNu mberRev isio nSizeA3Date:1 9-Mar-2 0 09Sheet of File:E:\u sefu l material\electron ics\Io n izer\升压电路\电路图\io n izer b ar\io n izer b ar5 81 0.d dbDrawn By:Vin3ADJ1+Vou t2U6LM3 17 TD?LED+24R2 92.2 k5.5 kR6 5+244 32 kR6 62 kR6D1 2DIODEVin1GND2+12 V3U5LM7 81 2 CTJ6. 21 00u fC8+24C1 9CAPVin3ADJ1+Vou t2U8LM3 17 T+245.5 kR3 54 32kR4 52 kR2 3D1 1DIODEJ4. 2Vin3ADJ1+Vou t2U7LM3 17 T+245.5 kR3 14 32kR3 42 kR1 6D1 0DIODEJ5. 26677885511223344U1 07 66 01 0u fC2 41 0ufC2 6+12-1 2 v2.2 kR6 71 0kR1 45 62R1 3D8Q4PNPLED1J15.2U1 ALF4 4 4U2 ALM3 24U2 ALM3 24U1 ALF4 4 42 4. 9 kR5 94 99R4 2+24Q62 N39 8 6 BPNPJ31 41 31 22 2MR4 42 2MR6 11 MR4 12 20n fC2 0J2. 21 41 31 21 0kR5 62.2 kR3 72 2MR1 72 2MR1 8+12-1 21 00 kR1 52 2nfC3J82 2nfC44 70kR1 91 54kR83 0kR91 00kR1 1D2D5-1 2+12LM3 93.2LM3 93.51 0kR2 02 49kR3 0+12R2 13 0k3 40kR5 12 20n fC2 5J5. 5765765U2 ALM3 24U1 ALF4 4 41 0kR5 22.2 kR3 62 2MR52 2MR7+12-1 21 00 kR12 2nfC2J72 2nfC24 70kR21 54kR83 0kR91 00kR1 1D1D6-1 2+12LM3 93.2LM3 93.51 0kR32 49kR3 0+12R43 0k3 40kR5 12 20n fC2 5J4. 5123123U2 ALM3 24U1 ALF4 4 41 0kR5 72.2 kR3 82 2MR2 42 2MR2 5+12-1 21 00 kR2 22 2nfC5J92 2nfC64 70kR2 61 54kR83 0kR91 00kR1 1D3D4-1 2+12LM3 93.2LM3 93.51 0kR2 72 49kR3 0+12R2 83 0k3 40kR5 12 20n fC2 5J6. 5891 0891 0D4DIODED5DIODED6DIODED3DIODED2DIODED1DIODER41 00K+12R81 54KR91 00K-1 24 44. 84 44. 74 44. 1lm3 9 3. 2lm3 9 3. 5U3 ALM3 93123567U3 BLM3 93LM3 93.2LM3 93.5R1 21 00KR1 04 53K+12TP9TP1 0TP1...
