Sony WM-EX560 WM-EX562 free download

File name WM-EX560 WM-EX562.pdf

WM-EX560/EX562 SERVICE MANUAL US Model WM-EX562 AEP Model E Model WM-EX560/EX562 Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation. "DOLBY" and the double-D symbol a are trademarks of Dolby Laboratories Licensing Corporation. Model Name Using Similar Mechanism Tape Transport Mechanism Type WM-EX552 MT-WMEX550-125 SPECIFICATIONS CASSETTE PLAYER MICROFILM TABLE OF CONTENTS 1. 2. 3. 4. 5. 6. 6-1. 6-2. 6-3. 6-4. SERVICING NOTES ... 3 GENERAL ... 5 DISASSEMBLY ... 8 MECHANICAL ADJUSTMENTS ... 13 ELECTRICAL ADJUSTMENTS ... 13 DIAGRAMS Block Diagram ... 14 Printed Wiring Board ... 16 Schematic Diagram ... 19 IC Pin Function Description ... 25 7. 8. EXPLODED VIEWS ... 27 ELECTRICAL PARTS LIST ... 30 Flexible Circuit Board Repairing · Keep the temperature of the soldering iron around 270 °C 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. Notes on chip component replacement · Never reuse a disconnected chip component. · Notice that the minus side of a tantalum capacitor may be damaged by heat. ­2­ SECTION 1 SERVICING NOTES This set detects the rotation of GEAR (PH) using the PH701 (photo reflector). The PH701 is mounted on the MAIN board, and therefore the GEAR cannot be detected with the MAIN board removed. As a result, the motor cannot be controlled, causing malfunction. Further, the S702 (FWD/REV switch) is also mounted on the MAIN board, and with the board removed, the mechanism position cannnot be detected and the operation is not changed over. Therefore, when the voltage check is executed with the MAIN board removed, follow the procedure provided below. Note : Do not move the S702 swithc position when removing the MAIN board. If it is moved, the set will not be changed over to the selected mode. In this case, reconnect the MAIN board to the set and retry the work from the beginning. 1. Setting 1) Refer to "3. DISASSEMBLY", and remove the cabinet and open the MAIN board. 2) Connect the MAIN board to the M901 (motor) and PM901 (plunger) using jumper wires. 3) Short the ATS terminals. 4) Press and fixed the S701 (CASSETTE HOLDER). 5) Supply 1.5V to the battery terminals ` and ' using a stabilized power supply. 2. FF, REW Modes 1) Input a square wave to the TP35 (PHOTO IN) and TP23 (GND). (See figure below) 2) Press the S704 (STOP) for selecting STOP mode. 3) Press the S706 (FF) o