Nokia 3210 Service & Repair Manual

Also see for 3210: User guide Repair guide User guide User guide Manual

Nokia 3210 Service & Repair Manual Manual pdf 25 page image

CONFIDENTIAL Service & Analysis Center EuropeTraining Teamversion 1.0 / 05.11.1999 Page 25 of 37Keymat mechanical faulty• Check the bottom of the keymat if no pins are broken or mechanical damagedBoard / Dome-sheet soiled• If there are only one or two keys without function, check and clean the board and dome-sheet if soiledBoard failure• If there are four keys without function and all of them are on them same ROW or COL line, check the connectionsbetween the keys and ground• If any line is interrupted between the Keys, swap the handset because PCB is faultyInsert SIM CARDInsert SIM cardthe phone doesn't register the SIM cardcheck solderings and contacts ofX100, SIM card readercheck pin 4 (SIMDATA), pin 3(SIMCLK), pin 2 (SIMRST), pin1/5 (VSIM) of SIM-CARD readerchange N100CCONTresolder X100 orchange if anycontact is bendedswap the phone ifany wire to the SIMcard reader hasteared offchange V112 if SIM-DATA, -CLOCK,-RESET or VSIM isshort circuited togroundnot oK not oKnot oK not oKoKcheck alsoR115,R116,C137,C138,C139,C140,C141not oK