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Question 4
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QUESTION 4
- (a) List the three sections of a mobile phone circuit board.
- (b) Mention one component in each of the sections list in 4(a) above.
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This question sought candidates understanding of the phone circuit board and the components therein. Most candidates that attempted this question got it wrong.
The expected answers are
(a) Sections
- Coordinating section.
- Reception section.
- Transmission section.
(b) Components
Coordinating section - C.P.U., power IC, audio IC,
charging IC, etc.
Reception section - RF 1C, Rx filter etc,
Transmission section - RF 1C, Tx filter, Network IC, antenna switch etc. |
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