Panasonic SC-TM23 Service Manual

Contents

Panasonic SC-TM23 Service Manual Manual pdf 53 page image

5317 Schematic Diagram· SW1: Push switch· SW2: Push switch· SW3: Open switch· SW4: CD switch· SW5: Load switch· S951: Mode switch· S952: Half switch· S971: Mode switch· S972: Half switch· S975: Recinh_F switch· S6101: Open/ Close switch· S6102: CD 1 switch· S6103: CD 2 switch· S6104: CD 3 switch· S6105: CD 4 switch· S6106: CD 5 switch· S6201: Rew switch· S6202: Tuner switch· S6203: CD switch· S6204: FF switch· S6205: Stop switch· S6206: Deck 1/2 switch· S6207: Deck 2 Open switch· S6208: TAPE switch· S6209: AUX switch· S6210: Deck 1 Open switch· S6301: Power switch· S6303: SSEQ switch· S6304: REC switch· S6305: Demo/Display switch· S7201: Rest switch· VR6491: VR Volume Jog· The voltage value and waveforms are thereference voltage of this unit measured by DC electronicvoltmeter (high impedance) and oscilloscope on the basisof chassis. Accordingly, there may arise some error involtage values and waveformsdependingupon the internalimpedance of the tester or the measuring unit.No mark: Playback << >> : Rec < > : FM (( )) : CD· Importance safety notice :Components identified by mark have specialcharacteristics important for safety. Furthermore, specialparts which have purposes of fire-retardant (resistors), high-quality sound (capacitors), low-noise (resistors), etc. areused. Whenreplacing any of components, be sure to useonly manufacturer´s specified parts shown in the parts list.Caution !IC, LSI and VLSI are sensitive to static electricity.Secondary trouble can be prevented by taking careduring repair.· Cover the parts boxes made of plastics withaluminium foil.· Put a conductive mat on the work table.· Ground the soldering iron.· Do not touch the pins of IC, LSI or VLSI with fingersdirectly.(All schematic diagrams may be modified at any time withthe development of the new technology)Note: