Sony ta f 3000 service manual

This is the 16 pages manual for sony ta f 3000 service manual.
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sony ta f 3000 service manual

Extracted text from sony ta f 3000 service manual (Ocr-read)


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Ñ 2 Ñ TABLE OF CONTENTS 1. GENERAL .......................................................................... 3 2. ELECTRICAL ADJUSTMENTS .................................. 4 3. DIAGRAMS 3-1. Circuit Boards Location ........................................................ 4 3-2. Schematic Diagram Ñ Main Section Ñ .............................. 5 3-3. Printed Wiring Board Ñ Main Section Ñ ............................ 7 3-4. Schematic Diagram Ñ Panel Section Ñ .............................. 9 3-5. Printed Wiring Board Ñ Panel Section Ñ ......................... 11 3-6. IC Block Diagrams ............................................................. 13 3-7. IC Pin Function ................................................................... 14 4. EXPLODED VIEWS 4-1. Front Panel Section ............................................................. 15 4-2. Chassis Section ................................................................... 16 5. ELECTRICAL PARTS LIST ........................................ 17Notes on chip component replacement ¥ Never reuse a disconnected chip component. ¥ Notice that the minus side of a tantalum capacitor may be damaged by heat. Flexible Circuit Board Repairing ¥ Keep the temperature of soldering iron around 270ûC during 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. SAFETY-RELATED COMPONENT WARNING !! COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! 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.

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Ñ 3 ÑÑ 4 Ñ SECTION 2 ELECTRICAL ADJUSTMENTS Bias Adjustment 1. Rotate the semi-fixed resistors (RV501, RV601) for bias adjustment to the MIN side fully (counterclockwise direc- tion). 2. Connect a digital voltmeter to CN501 (TP) and CN601 (TP). 1P : Õ side, 2P : Ô side 3. Turn ON the power button, and adjust RV501 and RV601 so that the digital voltmeter display becomes 22 mV ± 2mV within 5 seconds. 4. After the adjustment, turn OFF the power button. SECTION 3 DIAGRAMS 3-1. CIRCUIT BOARDS LOCATION PHONO board HP board AC SW board RM boardAC OUTLET board VOL board PANEL board MAIN board TONE board Adjustment Location [MAIN BOARD] (Component side) 1 2 CN601 (TP) CN501 (TP) 1 2 RV501 RV601 C801 C802 Bias AdjustmentDigital volt meter Digital volt meter SECTION 1 GENERAL This section is extracted from instruction manual.