Sony tmr rf 90 service manual

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2 SRS-RF90R/RF90RK/TMR-RF90 TABLE OF CONTENTS 1. GENERAL ·········································································· 4 2. DISASSEMBLY 2-1. Grille bracket ································································· 5 2-2. Front cabinet section, Rear cabinet section ··················· 6 2-3. Nickel cadmium battery, Speaker (057F022) ················ 6 2-4. Cabinet (Top section), JACK Board, RX board ············ 7 2-5. CHARGE board, SW board ·········································· 7 2-6. AMP board, MEGABASS board, REFLECTOR board ······················································ 8 2-7. Drive (030F034) ···························································· 8 3. ELECTRICAL ADJUSTMENTS ································· 9 4. DIAGRAMS ······································································ 12 4-1. Block Diagrams -“ SRS-RF90R -“ ··························································· 13 -“ TMR-RF90 -“ ···························································· 14 4-2. Printed Wiring Boards (SRS-RF90R) -“ RX Bord Section -“ ··················································· 15 4-3. Schematic Diagram (SRS-RF90R) -“ RX Bord Section -“ ··················································· 16 4-4. Printed Wiring Boards (SRS-RF90R) -“ AMP Bord Section -“ ················································ 17 4-5. Schematic Diagram (SRS-RF90R) -“ AMP Bord Section -“ ················································ 18 4-6. Printed Wiring Board (TMR-RF90) ···························· 19 4-7. Schematic Diagram (TMR-RF90) ······························· 20 5. EXPLODED VIEWS 5-1. Front Cabinet Section (SRS-RF90R) ·························· 21 5-2. Rear Cabinet Section (SRS-RF90R) ··························· 22 5-3. TMR-RF90 ·································································· 23 6. ELECTRICAL PARTS LIST ······································· 24

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3 SRS-RF90R/RF90RK/TMR-RF90 SERVICING NOTE Note : In the place of a mark, as shown in figure, the wires are taken about. ( Rear side ) tapecushion cushion ( Front side ) Leading about of wiring