Sony tcm 230 dv service manual

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2 TCM-230DV TABLE OF CONTENTS 1. SERVICING NOTES ······················································ 2 2. GENERAL ·········································································· 3 3. DISASSEMBLY 3-1. Disassembly Flow ··························································· 4 3-2. Speaker (SP901), Cassette Lid Assy ······························· 4 3-3. Cabinet (Rear) ································································· 5 3-4. MAIN Board ··································································· 5 3-5. Mechanism Deck (MT-200DV-175) ······························· 6 4. MECHANICAL ADJUSTMENTS ······························ 7 5. ELECTRICAL ADJUSTMENTS ································ 8 6. DIAGRAMS 6-1. Note for Printed Wiring Boards and Schematic Diagrams ······················································· 9 6-2. Printed Wiring Boards ·················································· 11 6-3. Schematic Diagram ······················································· 12 7. EXPLODED VIEWS 7-1. Cabinet Section ····························································· 13 7-2. Mechanism Deck Section-1 (MT-200DV-175) ············· 14 7-3. Mechanism Deck Section-2 (MT-200DV-175) ············· 15 8. ELECTRICAL PARTS LIST ······································· 16In this set, the S102 (POWER) detects RECORD/PLAYBACK on. It is mounted on the MAIN board, and therefore the RECORD/ PLAYBACK on cannot be detected with the MAIN board removed. When making an operation check and voltage check of mechanical deck with the MAIN board removed, fix the S102 at turn on. -“ MAIN BOARD (Component Side) -“ SECTION 1 SERVICING NOTES 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. S102 on 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 PUBLISHED BY SONY. UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the lead- free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size) : LEAD FREE MARK Unleaded solder has the following characteristics. -Unleaded solder melts at a temperature about 40 ËšC higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350 ËšC. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful! -Strong viscosity Unleaded solder is more viscou-s (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges oc- cur such as on IC pins, etc. -Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder.

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3 TCM-230DV SECTION 2 GENERAL VOR REC TIME/ PLAY MODE SPEED CONTROL MIC (Built-in microphone, Micrófono incorporado) m REW/ REVIEW PAUSE . x STOP EAR DC IN 3V MIC (PLUG IN POWER) z REC This section is extracted from instruction manual. - LOCATION OF CONTROLS