Later, after the prototype had been sent to the laboratory, many problems cropped up after 2000 hours of use. The case became extremely hot to handle, and one of the two project managers tendered his resignation and left Philips.
最後原型機進壽命實驗室二千小時後又出了許多問題，十分棘手，兩位專案經理的其中一位向公司遞出辭呈，離開了飛利浦。