NOKIA NSE8-024 free download

File name NSE8-024.PDF

CONFIDENTIAL 1 (1) Nokia Mobile Phones Service Bulletin No. SB-024/24.11.99 Technical Support, Europe & Africa NSE-8 NOT CHARGING The plastic C-cover of the phone is equipped with a "time dial" which indicates manufacturing month of the C-cover, see picture below. During manufacturing month 5 and 6 (May and June) the arrow in the time dial have the possibility to hit the varistor R103, and therefore the varistor R103 may break off or crack due the pressure from the arrow. When testing above cases, please note: - If the phone is charged using ACP-7 charger, phone's display shows "Charging" (Phone battery is NOT charged) - If the phone is charged using ACP-8 or ACP-9, phone's display shows "Not charging" (Recommended chargers used to test above cases) R103 is protecting the PSCC N101 (Charging control) circuit against voltage spikes from the AC supply network entering the phone via the charger. When R103 is defective and the phone suffers from the 'Not charging' symptom N101 is probably also defective. Procedure: 1. Replace C-cover or cut away the arrow in the time dial e.g. using a scalpel 2. Replace R103 3. Replace N101 CODE ITEM DESCRIPTION 1825005 R103 CHIP VARISTOR VWM14V VC30V 0805 4370581 N101 PSCC U463V1136T LFBGA36 9451461 C-COVER DMD04144 NSE-8 NSE-8 SB-024