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https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/708890/2200-ii-checkbook-calculator-from-1996
LED 显示屏中的第二个数字缺少两条垂直线、因此难以读取。 是否仍有复位此设备或对其进行维修？ 它对我有感情价值。
谢谢
David
尊敬的 David：
TI 计算器有自己的支持页面： https://education.ti.com/en/customer-support 。 他们很乐意提供帮助。
此致、
~Leonard
