1998 - Free

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Gen. Part General Part Grundig Annual <strong>1998</strong> Safety Advice for Lithium Batteries Warning! Lithium Batteries: Incorrectly used lithium batteries (excessive heat, reversed connection of terminals, short circuit) represent a danger of explosion! Lithium batteries must be replaced only by the original spare part (see Spare Parts List). Please observe the appropriate disposal regulations for exhausted lithium batteries. Adversel! Lithiumbatteri. Eksplosionsfare ved fejlagtig håndtering. Udskiftning må kun ske med batteri af samme fabrikat og type. Levér det brugte batteri tilbage til leverandøren. s Varning Eksplosionsfara vid felaktigt batteribyte. Ånvänd samma batterityp eller en ekvivalent typ som rekommenderas av apparattillverkaren. Kassera använt batteri enligt fabrikantens instruktion. ß Varoitus Paristo voi räjähtää, jos se on virheellisesti asennettu. Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppiin. Hävitä käytetty paristo valmistajan ohjeiden mukaisesti. Handling of MOS Chip Components Circuits containing MOS devices require special and careful handling to protect them from damage by static charges. Static charges can build up on all highly insulated plastics, can be transferred to persons wearing clothes and shoes made from synthetic materials and from them to the MOS devices. Protection circuits in the inputs and outputs of MOS devices provide only a limited degree of protection and this is due to their reaction time. Please observe the following instructions to protect these components from damage by static charges: 1. Retain MOS components in their conductive packages until they are required for use. MOS components must never be stored or transported in Styroper materials or in plastic magazines. 2. Personnel handling MOS components must first discharge any electrostatic charge on their body or clothing by touching a grounded object. 3. Handle the MOS device by the body and do not touch the terminals / pins. 4. Use earthed instruments only for testing and processing purposes. 5. Removal of, or making contact with, MOS ICs fitted into sockets must only be carried out with the operating voltage disconnected. 6. Circuits containing p-channel MOS components must not be connected to positive voltages (with reference to the substrate connection VSS). MOS Soldering Instructions • Use mains-isolated low-voltage soldering irons only. • Maximum soldering period is 5 sec with a soldering iron temperature of 300°C to 400°C. 1.22 Grundig Service
Grundig Annual <strong>1998</strong> General Part CHIP Technology Soldering and unsoldering of CHIP components – Use only low-voltage soldering irons with temperature control. – Permissible soldering temperatures are approx. 240°C up to max. 300°C. – Keep the soldering period as short as possible. – Keep the CHIP components in their original packages until they are used to avoid oxidation of the end contacts. – Do not touch CHIP components with bare hands. Unsoldering of CHIP components 1. step: Clean the CHIP soldering point with a solder wick (Fig. 1). 2. step: Warm up the ends of the CHIP or the whole CHIP component and remove the CHIP from the adhesive by turning it without application of force so that the tracks beneath the CHIP do not break (Fig. 2). Attention! Never use unsoldered CHIPS again! The conductive layer may be broken. Soldering of CHIP components 3. step: Remove any remaining residues from the soldering point. Then apply a bead of solder (Fig. 3). 4. step: Place the CHIP onto the soldering point, then center and fix it (Fig. 4). 5. step: Solder the free end of the CHIP and resolder the first soldering point after it has cooled (Fig. 5). Solder Fig. 5 P.C.B. Fig. 1 Fig. 2 Fixing point Chip Tip of soldering iron Solder Fig. 3 Fig. 4 Joint 2 Adhesive Tweezers More detailed information on the SMD soldering technology is given in the service brochure "SMD Soldering Technology" – d – obtainable under the part no. 72008-499.98. Tip of soldering iron Grundig Service 1.23 Joint 1 Gen. Part
Page 1 and 2: TECHNICAL ANNUAL 1998
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1998 - Free

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