STR-DE135

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SECTION 5 DIAGRAMS • Circuit Boards Location SECONDARY board PRIMARY board POWER SWITCH board STANDBY TRANS board DISPLAY board MAIN board SPK SWITCH board VOLUME board KEY board TONE board – 8 –
5-1. NOTES FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS Note on Printed Wiring Board: • X : parts extracted from the component side. • b : Pattern from the side which enables seeing. (The other layers' patterns are not indicated.) • Indication of transistor. B Q C E Note on Schematic Diagram: • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. • All resistors are in Ω and 1 /4 W or less unless otherwise specified. • ¢ : internal component. • 2 : nonflammable resistor. • C : panel designation. • Waveforms – MAIN Board – 1 IC1 !¢ (XO) 1.6 Vp-p – DISPLAY Board – 1 IC201 #∞ (X2) 5.4 Vp-p B Q C E These are omitted. These are omitted. Note: The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. • U : B+ Line. • V : B– Line. • Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : FM • Voltages are taken with a VOM (Input impedance 10 MΩ). Voltage variations may be noted due to normal production tolerances. • Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. • Circled numbers refer to waveforms. • Signal path. F : FM 4.33 MHz 4.19 MHz – 9 – – 10 –
Page 1 and 2: STR-DE135 SERVICE MANUAL US Model A
Page 3 and 4: SECTION 1 SERVICING NOTES MODEL IDE
Page 5 and 6: Note: Follow the disassembly proced
Page 7: Fluorescent Indicator Tube Test Mod
Page 11 and 12: STR-DE135 5-3. SCHEMATIC DIAGRAM -
Page 13 and 14: STR-DE135 (Page 11) (Page 17) (Page
Page 15 and 16: STR-DE135 • IC Block Diagrams - M
Page 17 and 18: STR-DE135 5-7. SCHEMATIC DIAGRAM -
Page 19 and 20: Pin No. Pin Name I/O Description 44
Page 21 and 22: (2) FRONT PANEL SECTION 60 59 59 58
Page 23 and 24: NOTE: • Due to standardization, r
Page 25 and 26: MAIN Ref. No. Part No. Description
Page 27 and 28: MAIN Ref. No. Part No. Description
Page 29 and 30: TONE VOLUME Ref. No. Part No. Descr

STR-DE135

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