ECM-S80 SERVICE MANUAL ELECTRET CONDENSER MICROPHONE. US Model Canadian Model AEP Model E Model. Ver

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SERVICE MANUAL Ver.0 00. 0 US Model Canadian Model AEP Model E Model SPECIFICATIONS Type Electret condenser microphone Cord ø. mm ( 3 / 3 in.)ofc litz cord ( core shielded) Length:Approx.

1 SERVICE MANUAL Ver US Model Canadian Model AEP Model E Model SPECIFICATIONS Type Electret condenser microphone Cord ø. mm ( 3 / 3 in.)ofc litz cord ( core shielded) Length:Approx.70 cm (7 5 / 8 in.) Attached with gold plated L-shaped stereo miniplug Power source way power supply system plug-in power alkaline manganese battery LR44 () Dimensions Approx mm (w/h/d) ( / 4 7 / 6 3 / in.) Mass Approx.39 g ( oz.)(including battery) Frequently response 00 0,000 Hz Directivity Unidirectional Output impedance.6 k Ω ± 30% Sensitivity Open circuit output voltage level 40 ± 4 db/pa 0 db = V /Pa,,000 Hz ( Pa =0 µ bar =94 dbspl) Battery life Approx.80 hours (continuous operation) Operating temperature range 0 C 40 C (3 F 04 F) Design and specifications are subject to change without notice. ELECTRET CONDENSER MICROPHONE B Sony Corporation Personal Audio Company Published by Sony Engineering Corporation

2 SECTION SERVICING NOTES 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. z UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the lead-free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size.) REEL ASSY, CORD INSTALLATION Put the flexible board through the hole of the flexible holder. Wind flexible board around the flexible holder. Note : Leave the flexible board for 0 to 30mm. 3 Attach the flexible holder to the "reel ASSY, cord". 4 Loosen flexible board doesn't seem to coil around the flexible holder. Flexible board : LEAD FREE MARK Unleaded solder has the following characteristics. Unleaded solder melts at a temperature about 40 C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350 C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful! Strong viscosity Unleaded solder is more viscous (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc. Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder. 0 to 30 mm Holder, flexible Flexible board Holder, flexible Connection cord 3 4 Loosen flexible board doesn't seem to coil around the flexible holder. Reel ASSY, cord SECTION GENERAL Knot part of connection cord LOCATING THE CONTROLS This section is extracted from instruction manual Cord retracting wheel POWER switch When the microphone is powered by plug-in power,turn its own power off. 3 Battery check indicator 4 Microphone 5 Stereo miniplug To the microphone jack of the recording equipment 6 Slide

3 SECTION 3 DIAGRAMS ECM-S PRINTED WIRING BOARD : Uses unleaded solder A AMP BOARD D C3 C4 SW R R7 R C5 SW C6 D R5 R6 RED BLK D3 POWER B MIC L RED BLK SW, POWER OFFTON (PLUG IN POWER) P (OUTPUT) RED BLK () ALKALINE MANGANESE BATTERY LR44 PC,.5V MIC R Note: X : parts extracted from the component side. b : Pattern from the side which enables seeing. 3

4 3-. SCHEMATIC DIAGRAM MIC L D UDZSTE-7-4.7B C3 SW R 3.3k MIC R D UDZSTE-7-4.7B C4 R 3.3k R7 C V SW, POWER OFF ON (PLUG IN POWER) P (OUTPUT) SW ALKALINE MANGANESE BATTERY LR44 PC,.5V C6 R5 47 R6 0k.5V 470 D3 SML-30LT POWER Note: 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 / 4 W or less unless otherwise specified. A : B+ Line. Voltages are dc with respect to ground under no-signal conditions. Voltages are taken with a VOM (Input impedance 0 MΩ). Voltage variations may be noted due to normal production tolerances. Signal path. F 4

5 SECTION 4 EXPLODED VIEW ECM-S80 NOTE : -XX, -X mean standardized parts, so they may have some difference from the original one. Items marked * are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. The mechanical parts with no reference number in the exploded views are not supplied P Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark FOOT, RUBBER SCREW (B.7X6), TAPPING TERMINAL, PLUS CASE, BATTERY SLEEVE CASE, REAR TERMINAL, MINUS SLIDE, CORD RING, SLIP HOLDER, FLEXIBLE A A REEL ASSY, CORD LEVER, SWITCH SPRING, LOCK 4 A A CASE ASSY, FRONT KNOB, SWITCH FLEXIBLE BOARD * AMPLIFIER BOARD SCREW (B.7X.5), TAPPING SPRING, GROUND COIL 0 A A UNIT ASSY (MIC L, R) CUSHION PLATE, GROUND SHEET (E), DOUBLE-FACE ADHESIVE P CORD, CONNECTION ( CORE) (OUTPUT) 5

6 AMPLIFIER SECTION 5 ELECTRICAL PARTS LIST Ref. Note: No. Part No. Description Remarks Ref. No. Part No. Description Remarks When indicating parts by reference number, please include the board name. Due to standardization, replacements in the parts list may be different from the parts specified in the diagrams or the components used on the set. -XX, -X mean standardized parts, so they may have some difference from the original one. Items marked * are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. RESISTORS All resistors are in ohms METAL: Metal-film resistor METAL OXIDE: Metal Oxide-film resistor F : nonflammable SEMICONDUCTORS In each case, u: µ, for example: ua...: µ A..., upa...: µ PA..., upb...: µ PB..., upc...: µ PC..., upd...: µ PD... CAPACITORS uf : µ F COILS uh : µ H Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks * AMPLIFIER BOARD **************** <CAPASITOR> C CERAMIC CHIP uf 0% 6.3V C CERAMIC CHIP uf 0% 6.3V C TANTAL. CHIP 47uF 0%.5V C TANTAL. CHIP 47uF 0%.5V <DIODE> D DIODE UDZSTE-74.7B D DIODE UDZSTE-74.7B D DIODE CL-90UR-CD-T <RESISTOR> R METAL CHIP 3.3K 5% /6W R METAL CHIP 3.3K 5% /6W R METAL CHIP 0K 5% /6W R METAL CHIP 470 5% /6W R METAL CHIP 00 5% /6W <SWITCH> SW SWITCH, SLIDE (POWER) SW SWITCH, SLIDE (POWER) *********************************************************** MISCELLANEOUS *************** FLEXIBLE BOARD 0 A A UNIT ASSY (MIC L, R) P CORD, CONNECTION ( CORE) (OUTPUT) *********************************************************** ACCESSORIES ************ MANUAL, INSTRUCTION (ENGLISH, FRENCH, GERMAN, SPANISH, ITALIAN, PORTUGUESE) 6

7 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 7

8 REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision New

Photo: SRS-Z750PC SPECIFICATIONS. Stereo mini jack (INPUT) (SRS-Z750) Stereo mini jack 2 (INPUT 1, 2) (SRS-Z750PC)

SRS-Z750/Z750PC SERVICE MANUAL Ver 1.0 1998. 07 US Model Canadian Model AEP Model UK Model E Model Australian Model Left speaker Right speaker Photo: SRS-Z750PC SPECIFICATIONS Amplifier section Power output