Sony xr 2750 service manual

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sony xr 2750 service manual

Extracted text from sony xr 2750 service manual (Ocr-read)


Page 1

Ð 2 Ð TABLE OF CONTENTS 1. GENERAL Location of Controls ........................................................ 3 Installation ....................................................................... 4 Connections ..................................................................... 5 2. DISASSEMBLY .......................................................... 8 3. ASSEMBLY OF MECHANISM DECK ........... 11 4. MECHANICAL ADJUSTMENTS ....................... 17 5. ELECTRICAL ADJUSTMENTS Test Mode ........................................................................ 17 Tape Deck Section ........................................................... 18 Tuner Section ................................................................... 18 6. DIAGRAMS 6-1. IC Pin Function Description ............................................ 21 6-2. Printed Wiring Boards ÐMAIN SectionÐ ........................ 23 6-3. Schematic Diagram ÐMAIN SectionÐ ............................ 27 6-4. Printed Wiring Board ÐCONTROL SectionÐ ................. 32 6-5. Schematic Diagram ÐCONTROL SectionÐ .................... 34 7. EXPLODED VIEWS ................................................ 39 8. ELECTRICAL PARTS LIST ................................ 43 SERVICING NOTES Flexible Circuit Board Repairing ·Keep the temperature of the soldering iron around 270 û C dur- ing repairing. ·Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). ·Be careful not to apply force on the conductor when soldering or unsoldering Notes on chip component replacement ·Never reuse a disconnected chip component. ·Notice that the minus side of a tantalum capacitor may be dam- aged by heat. CAUTION Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturerÕs instructions. ADVARSEL! Lithiumbatteri-Eksplosionsfare ved fejlagtig hŒndtering. Udskiftning mŒ kun ske med batteri af samme fabrikat og type. LevŽr det brugte batteri tilbage til leverand¿ren. ADVARSEL Eksplosjonsfare ved feilaktig skifte av batteri. Benytt samme batteritype eller en tilsvarende type anbefalt av apparatfabrikanten. Brukte batterier kasseres i henhold til fabrikantens instruksjoner. VARNING Explosionsfara vid felaktigt batteribyte. AnvŠnd samma batterityp eller en likvŠrdig typ som rekommenderas av apparattillverkaren. Kassera anvŠnt batteri enligt gŠllande fšreskrifter. VAROITUS Paristo voi rŠjŠhtŠŠ, jos se on virheellisesti asennettu. Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppiin. HŠvitŠ kŠytetty paristo valmistajan ohjeiden mukaisesti.

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Ð 3 Ð SECTION 1 GENERAL This section is extracted from instruction manual.