Sony tcm 20 dv service manual

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-“ 2 -“ TABLE OF CONTENTS 1. SERVICING NOTES ............................................... 2 2. GENERAL ................................................................... 3 3. DISASSEMBLY ......................................................... 4 4. MECHANICAL ADJUSTMENTS ....................... 7 5. ELECTRICAL ADJUSTMENTS ......................... 8 6. DIAGRAMS 6-1. Block Diagram ................................................................ 9 6-2. Printed Wiring Board ...................................................... 11 6-3. Schematic Diagram ......................................................... 13 7. EXPLODED VIEWS ................................................ 16 8. ELECTRICAL PARTS LIST ............................... 19 Flexible Circuit Board Repairing - Keep the temperature of the soldering iron around 270 ËšC 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. ATTENTION AU COMPOSANT AYANT RAPPORT Ã- LA SÉCURITÉ! LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- LISHED BY SONY. SECTION 1 SERVICING NOTES In this set, the S102 (POWER) detects REC/PLAYBACK on. It is mounted on the MAIN board, and therefore the REC/PLAY- BACK on cannot be detected with the MAIN board removed. When making an operation check and voltage check of mechani- cal deck with the MAIN board removed, fix the S102 at turn on. -“ MAIN BOARD (Conductor Side) -“ S102 on

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-“ 3 -“ SECTION 2 GENERAL This section is extracted from instruction manual. - Location of Controls REC TIME MIC VOL B PLAY M FF/CUE SPEED CONTROLEAR VOR z REC x STOP m REW/ REVIEW PAUSE DC IN 3 V . Built-in mic BATT