– 1–1 –1. INTRODUCTIONWARNINGThe equipment described in this manual contains polarised capacitors utilising liquid electrolyte. These devices are entirely safe providedthat neither a short-circuit nor reverse polarity connection is made across the capacitor terminals. FAILURE TO OBSERVE THIS WARNINGCOULD RESULT IN DAMAGE TO THE EQUIPMENT OR, AT WORST, POSSIBLE INJURY TO PERSONNEL RESULTING FROMELECTRIC SHOCK OR THE AFFECTED CAPACITOR EXPLODING. EXTREME CARE MUST BE EXERCISED AT ALL TIMES WHENHANDLING THESE DEVICES.CautionThe equipment described in this manual contains electrostatic devices (ESDs). Damage can occur to these devices if the handlingprocedures described in Section 4 are not adhered to.CautionThis equipment may contain an internal battery in addition to the external battery packs. These batteries are recyclable and should bedisposed of in accordance with local legislation. They must not be incinerated, or disposed of as ordinary rubbish.1.1. Purpose of the ManualThis Service manual contains the information and procedures required for installing, operating and servicing the PanasonicGSM Personal Cellular Mobile Telephone system operating on GSM Digital Cellular Networks.1.2. Structure of the Manual1.3. Servicing ResponsibilitiesThe manual is structured to provide service engineering personnel with the following information and procedures:1. General and technical information - provides a basic understanding of the equipment, kits and options, together withdetailed information for each of the major component parts.2. Installation and operating information - provides instructions for unpacking, installing and operating the equipment.3. Servicing information - provides complete instructions for the testing, disassembly, and reassembly of the product.Step-by-step troubleshooting information is given to enable the isolation and identification of a malfunction, and thusdetermine what corrective action should be taken. The test information enable verification of the integrity of theequipment after any remedial action has been carried out.4. Illustrated parts list - provided to enable the identification of all cosmetic and some electrical components, for theordering of replacement parts.The procedures described in this manual must performed by qualified service engineering personnel, at an authorizedservice center.The service engineering personnel are responsible for fault diagnosis and repair of all equipment described in this manual.