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具體代換方法是:先將印刷電路板1-12引腳的線路割斷,把UPC1185H焊下,然后把D7240P插入印刷電路板焊好,根據(jù)表1,將D7240P的引腳與原UPC1185H的引腳對應焊接好,仔細檢查無短路處后接通電源即可工作。
表1 UPC1185H和D7240P代換引腳對應表
UPC1185H引腳
| 1
| 2
| 3
| 4
| 5
| 6
| 7
| 8
| 9
| 10
| 11
| 12
|
工作電壓/V
| 0
| 7
| 13
| 2
| 12
| 0
| 0
| 12
| 14
| 13
| 7
| 0
|
D7240P對應引腳
| 4
| 8
| 9
| 3
| 5
| 6
| 1
| 2
| 10
| 11
| 12
| 7
|
AN7178引腳
| 1
| 2
| 3
| 4
| 5
| 6
| 7
| 8
| 9
| 10
| 11
| 12
|
HA1377引腳
| 1
| 2
| 3
| 4
| 5
| 6
| 7
| 8
| 9
| 10
| 11
| 12
|
D7240P對應引腳
| 2
| 1
| 3
| 4
| 6
| 5
| 8
| 9
| 7
| 10
| 11
| 12
|
LA4445引腳
| 1
| 2
| 3
| 4
| 5
| 6
| 7
| 8
| 9
| 10
| 11
| 12
|
D7240P對應引腳
| 1
| 2
| 4
| 3
| 5
| 6
| 9
| 8
| 10
| 12
| 11
| 7
|
M51102L引腳
| 1
| 2
| 3
| 4
| 5
| 6
| 7
| 8
| 9
| 10
| 11
| 12
|
工作電壓/V
| 13.6
| 6.9
| 4.2
| 1.2
| 0
| 0
| 0
| 0
| 1.2
| 7
| 13.6
| 13.9
|
D720P對應引腳
| 11
| 12
| 3
| 2
| 1
| 7
| 4
| 6
| 5
| 8
| 9
| 10
|