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

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SRS-Z750/Z750PC SERVICE MANUAL Ver 1.0 1998.

1 SRS-Z750/Z750PC SERVICE MANUAL Ver US Model Canadian Model AEP Model UK Model E Model Australian Model Left speaker Right speaker Photo: SRS-Z750PC SPECIFICATIONS Amplifier section Power output Input impedance Input Speaker section System Speaker unit Nominal Impedance Rated input power 7.5 W W 4.7 Kilohms (at 1 khz) Stereo mini jack (INPUT) (SRS-Z750) Stereo mini jack 2 (INPUT 1, 2) (SRS-Z750PC) Full-range, bass reflex type Magnetically shielded ø65 mm (2 5/8 inch) 8 ohms 7.5 W General Power requirement DC IN 15 V jack accepts the supplied Sony AC power adaptor (left speaker only) Dimensions Approx mm (3 5/8 6 1/2 6 1/8 in.) (w/h/d) incl. projecting parts and controls Mass Left speaker: Approx. 850 g (1 lb. 14 oz.) Right speaker: Approx. 750 g (1 lb. 10 oz.) Supplied accessories AC power adaptor AC-S1510 (1) Connecting cord (stereo miniplug stereo miniplug) (1) Design and specifications are subject to change without notice. The CE mark on the unit is valid only for products marketed in the European Union. STEREO ACTIVE SPEAKER SYSTEM MICROFILM 1

2 SECTION 1 GENERAL This section is extracted from instruction manual. 2

3 SECTION 2 DIAGRAMS SRS-Z750/Z750PC 2-1. PRINTED WIRING BOARD (SRS-Z750) 2-2. SCHEMATIC DIAGRAM (SRS-Z750) 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 1 /4 W or less unless otherwise specified. C : panel designation. U : B+ Line. Power voltage is dc 15 V and fed with regulated dc power supply from external power voltage jack. Voltage is dc with respect to ground under no-signal condition. Voltages are taken with a VOM (Input impedance 10 MΩ). Voltage variations may be noted due to normal production tolerances. Signal path. F : AUDIO IC Block Diagram RIPPLE FILTER/ STARTING TIME 1 IN1 2 PRE GND 3 IC1 LA4663 INPUT + OUTPUT IN2 STANDBY OUTPUT Semiconductor Location Ref. No. Location D1 D-2 D2 D-3 D3 F-2 D4 F-2 IC1 D-2 Q1 E-3 Q2 E-3 Note: X : parts extracted from the component side. Y : parts extracted from the conductor side. b : Pattern from the side which enables seeing. SIGNAL MUTE 6 VCC1 7 VCC2 8 +OUT2 9 POWER GND2 10 OUT2 11 OUT1 12 POWER GND1 13 +OUT1 14 INPUT 3 4

4 SRS-Z750/Z750PC 2-3. PRINTED WIRING BOARD (SRS-Z750PC) 2-4. SCHEMATIC DIAGRAM (SRS-Z750PC) 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 1 /4 W or less unless otherwise specified. C : panel designation. U : B+ Line. Power voltage is dc 15 V and fed with regulated dc power supply from external power voltage jack. Voltage is dc with respect to ground under no-signal condition. Voltages are taken with a VOM (Input impedance 10 MΩ). Voltage variations may be noted due to normal production tolerances. Signal path. F : AUDIO IC Block Diagram RIPPLE FILTER/ STARTING TIME 1 IN1 2 PRE GND 3 IC1 LA4663 INPUT + OUTPUT IN2 STANDBY OUTPUT Semiconductor Location Ref. No. Location D1 D-2 D2 D-2 D3 F-2 IC1 D-2 IC2 E-3 Q1 D-3 Q2 D-3 Note: X : parts extracted from the component side. Y : parts extracted from the conductor side. b : Pattern from the side which enables seeing. SIGNAL MUTE 6 VCC1 7 VCC2 8 +OUT2 9 POWER GND2 10 OUT2 11 OUT1 12 POWER GND1 13 +OUT1 14 INPUT 5 6

5 NOTE: The mechanical parts with no reference number in the exploded views are not supplied. Items marked * are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. SECTION 3 EXPLODED VIEWS -XX and -X mean standardized parts, so they may have some difference from the original one. Color Indication of Appearance Parts Example : KNOB, BALANCE (WHITE)... (RED) N N Parts Color Cabinet s Color Accessories and packing materials and hardware (# mark) list are given in the last of this parts list CABINET (L) SECTION SP1 # # #3 #3 Ref. No. Part No. Description Remark 1 X GRILLE ASSY (Z750) 1 X GRILLE ASSY (Z750PC) KNOB (Z750) KNOB (Z750PC) CABINET (L), FRONT (Z750) CABINET (L), FRONT (Z750PC) CUSHION * PLATE, LIGHT GUIDE PACKING (LARGE) PACKING (SMALL) CABINET (L), REAR (Z750) CABINET (L), REAR (Z750PC) PACKING (JACK) Ref. No. Part No. Description Remark PACKING (POWER) * 11 A A LIFIER BOARD, COMPLETE (Z750PC:US) * 11 A A LIFIER BOARD, COMPLETE (Z750:EXCEPT US) * 11 A A LIFIER BOARD, COMPLETE (Z750:US) * 11 A A LIFIER BOARD, COMPLETE (Z750PC:EXCEPT US) PACKING (DC-IN) SPRING, COIL * ABSORBENT, ACOUSTIC (EXCEPT US) * LABEL, CAUTION (US) SP SPEAKER (065F042) 7

6 3-2. CABINET (R) SECTION SP Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 51 X GRILLE ASSY (Z750) 51 X GRILLE ASSY (Z750PC) CABINET (R), FRONT (Z750) CABINET (R), FRONT (Z750PC) CUSHION PACKING (CORD) CABINET (R), REAR (Z750) CABINET (R), REAR (Z750PC) CORD (WITH PLUG) (Z750) CORD (WITH PLUG) (Z750PC) PACKING (LARGE) PACKING (SMALL) * ABSORBENT, ACOUSTIC (EXCEPT US) SP SPEAKER (065F042) 8

7 NOTE: 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 and -X mean standardized parts, so they may have some difference from the original one. RESISTORS All resistors are in ohms. METAL:Metal-film resistor. METAL OXIDE: Metal oxide-film resistor. F:nonflammable Abbreviation CND : Canadian model EE : East European model SP : Singapore model AUS : Australian model SECTION 4 ELECTRICAL PARTS LIST Items marked * are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. SEMICONDUCTORS In each case, u : µ, for example: ua.. : µa.. upa.. : µpa.. upb.. : µpb.. upc.. : µpc.. upd.. : µpd.. CAPACITORS uf : µf COILS uh : µh LIFIER When indicating parts by reference number, please include the board. Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * A A LIFIER BOARD, COMPLETE (Z750:EXCEPT US) * A A LIFIER BOARD, COMPLETE (Z750:US) ************************** SCREW +BVTT 3X6 (S) SCREW +BVTT 3X8 (S) < CAPACITOR > C ELECT 1uF 20% 50V C ELECT 1uF 20% 50V C MYLAR uF 5% 50V C FILM 0.1uF 5% 50V C MYLAR uF 5% 50V C FILM 0.1uF 5% 50V C FILM 0.22uF 5% 50V C FILM 0.1uF 5% 50V C FILM 0.1uF 5% 50V C FILM 0.1uF 5% 50V C FILM 0.1uF 5% 50V C ELECT 2200uF 20% 10V C ELECT 47uF 20% 25V C ELECT 10uF 20% 50V C FILM 0.22uF 5% 50V < DIODE > D DIODE 1SS119 D DIODE 1SS119 D DIODE RD8.2ES-B2 D LED TLG226 (POWER) < FUSE > F FUSE, GLASS TUBE (3.15A/125V) (US) < IC > IC IC LA4663 < JACK > JK JACK (INPUT) JK JACK (R OUT) JK JACK, DC (DC IN 15V) < TRANSISTOR > Q TRANSISTOR 2SC2458L-GR Q TRANSISTOR 2SC2458L-GR < RESISTOR > C ELECT 3300uF 20% 25V C ELECT 2.2uF 20% 50V C ELECT 10uF 20% 50V C ELECT 22uF 20% 50V C ELECT 10uF 20% 50V C CERAMIC 0.001uF 10% 50V C CERAMIC 0.001uF 10% 50V C CERAMIC 0.001uF 10% 50V C CERAMIC 0.001uF 10% 50V C CERAMIC 680PF 10% 50V C CERAMIC 680PF 10% 50V C CERAMIC 0.001uF 10% 50V C CERAMIC 0.001uF 10% 50V C CERAMIC 0.001uF 10% 50V C CERAMIC 0.001uF 10% 50V C CERAMIC 0.001uF 10% 50V C CERAMIC 0.001uF 10% 50V C CERAMIC 0.001uF 10% 50V C FILM 0.22uF 5% 50V R CARBON 1K 5% 1/4W R CARBON 1K 5% 1/4W R CARBON 3.3K 5% 1/4W R CARBON 10K 5% 1/4W R CARBON 3K 5% 1/4W R CARBON 3.3K 5% 1/4W R CARBON 10K 5% 1/4W R CARBON 3K 5% 1/4W R CARBON 150 5% 1/4W R CARBON 150 5% 1/4W R CARBON 10K 5% 1/4W R CARBON 10K 5% 1/4W R CARBON 2.2 5% 1/6W R CARBON 2.2 5% 1/6W R CARBON 2.2 5% 1/6W R CARBON 2.2 5% 1/6W R CARBON 33K 5% 1/4W R CARBON 33K 5% 1/4W R CARBON 10K 5% 1/4W R CARBON 220 5% 1/4W R CARBON 220 5% 1/4W 9

8 LIFIER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R CARBON 560 5% 1/4W R CARBON 15K 5% 1/4W R CARBON 10K 5% 1/4W < VARIABLE RESISTOR > C CERAMIC 0.001uF 10% 50V C CERAMIC 0.001uF 10% 50V C CERAMIC 0.001uF 10% 50V C CERAMIC 0.001uF 10% 50V C CERAMIC 0.001uF 10% 50V RV RES, VAR, CARBON 10K/10K (VOLUME) < SWITCH > SW SWITCH (POWER) ************************************************************* * A A LIFIER BOARD, COMPLETE (Z750PC:US) * A A LIFIER BOARD, COMPLETE (Z750PC:EXCEPT US) ************************** SCREW +BVTT 3X6 (S) SCREW +BVTT 3X8 (S) < CAPACITOR > C ELECT 1uF 20% 50V C ELECT 1uF 20% 50V C ELECT 1uF 20% 50V C ELECT 1uF 20% 50V C FILM 0.082uF 5% 50V C FILM 0.082uF 5% 50V C MYLAR uF 5% 50V C MYLAR uF 5% 50V C ELECT 1uF 20% 50V C ELECT 1uF 20% 50V C ELECT 10uF 20% 50V C ELECT 10uF 20% 50V C ELECT 1uF 20% 50V C ELECT 1uF 20% 50V C FILM 0.22uF 5% 50V C FILM 0.22uF 5% 50V C ELECT 10uF 20% 50V C ELECT 47uF 20% 25V C FILM 0.1uF 5% 50V C FILM 0.1uF 5% 50V C FILM 0.1uF 5% 50V C FILM 0.1uF 5% 50V C ELECT 2200uF 20% 10V C FILM 0.22uF 5% 50V C ELECT 3300uF 20% 25V C ELECT 2.2uF 20% 50V C ELECT 10uF 20% 50V C ELECT 22uF 20% 50V C ELECT 10uF 20% 50V C ELECT 220uF 20% 25V C ELECT 100uF 20% 10V C FILM 0.1uF 5% 50V C ELECT 100uF 20% 10V C ELECT 100uF 20% 10V C CERAMIC 0.001uF 10% 50V C CERAMIC 0.001uF 10% 50V C CERAMIC 0.001uF 10% 50V C CERAMIC 0.001uF 10% 50V C CERAMIC 0.001uF 10% 50V C CERAMIC 0.001uF 10% 50V C CERAMIC 0.001uF 10% 50V C CERAMIC 0.001uF 10% 50V C CERAMIC 0.001uF 10% 50V C CERAMIC 0.001uF 10% 50V C CERAMIC 0.001uF 10% 50V C CERAMIC 0.001uF 10% 50V C CERAMIC 0.001uF 10% 50V < DIODE > D DIODE 1SS119 D DIODE 1SS119 D LED TLG226 (POWER) < FUSE > F FUSE, GLASS TUBE (3.15A/125V) (US) < IC > IC IC LA4663 IC IC M5218AP IC IC NJM78L08A < JACK > JK JACK (INPUT (1)) JK JACK (INPUT (2)) JK JACK (R OUT) JK JACK, DC (DC IN 15V) < TRANSISTOR > Q TRANSISTOR 2SC2458L-GR Q TRANSISTOR 2SC2458L-GR < RESISTOR > R CARBON 3.3K 5% 1/4W R CARBON 3.3K 5% 1/4W R CARBON 3.3K 5% 1/4W R CARBON 3.3K 5% 1/4W R CARBON 1.5K 5% 1/4W R CARBON 1.5K 5% 1/4W R CARBON 3.3K 5% 1/4W R CARBON 3K 5% 1/4W R CARBON 3.3K 5% 1/4W R CARBON 22K 5% 1/4W 10

9 LIFIER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R CARBON 22K 5% 1/4W R CARBON 3.3K 5% 1/4W R CARBON 3.3K 5% 1/4W R CARBON 3K 5% 1/4W R CARBON 150 5% 1/4W R CARBON 150 5% 1/4W R CARBON 10K 5% 1/4W R CARBON 10K 5% 1/4W R CARBON 22K 5% 1/4W R CARBON 22K 5% 1/4W R CARBON 22K 5% 1/4W R CARBON 22K 5% 1/4W R CARBON 68K 5% 1/4W R CARBON 68K 5% 1/4W R CARBON 1K 5% 1/4W R CARBON 1K 5% 1/4W R CARBON 2.2 5% 1/6W R CARBON 2.2 5% 1/6W R CARBON 2.2 5% 1/6W R CARBON 2.2 5% 1/6W R CARBON 33K 5% 1/4W R CARBON 33K 5% 1/4W R CARBON 10K 5% 1/4W R CARBON 15K 5% 1/4W R CARBON 10K 5% 1/4W R CARBON 100 5% 1/4W R CARBON 560 5% 1/4W R CARBON 12K 5% 1/4W R CARBON 12K 5% 1/4W R CARBON 24K 5% 1/4W < VARIABLE RESISTOR > RV RES, VAR, CARBON 10K/10K (VOLUME) < SWITCH > SW SWITCH (POWER) ************************************************************* MISCELLANEOUS *************** CORD (WITH PLUG) (Z750) CORD (WITH PLUG) (Z750PC) SP SPEAKER (065F042) (L-CH) SP SPEAKER (065F042) (R-CH) ************************************************************* ACCESSORIES & PACKING MATERIALS ******************************** ADAPTOR, AC (AC-S1510) (US,CND,EE) ADAPTOR, AC (AC-S1510) (AEP,SP) ADAPTOR, AC (AC-S1510) (UK) ADAPTOR, AC (AC-S1510) (AUS) MANUAL, INSTRUCTION (ENGLISH,SPANISH) (US) MANUAL, INSTRUCTION (ENGLISH,FRENCH, GERMAN,SPANISH) (EXCEPT US) MANUAL, INSTRUCTION (ITALIAN,DUTCH, SWEDISH,PORTUGUESE) (AEP) ************************************************************* ************** HARDWARE LIST ************** # SCREW +P 2X6 TYPE2 NON-SLIT SCREW +BVTP 3X10 TYPE2 N-S # SCREW +BVTT 3X6 (S) # SCREW +BVTT 3X8 (S) 11

10 SRS-Z750/Z750PC Sony Corporation Personal A&V Products Company 12 98G Printed in Japan C Published by Quality Engineering Dept. (Shibaura)

STEREO POWER AMPLIFIER. AEP Model UK Model

STEREO POWER AMPLIFIER. AEP Model UK Model XM-5020X SERVICE MANUAL AEP Model UK Model This set has almost the same specifications as the XM-502X. This service manual only describes the differences from the XM-502X. Refer to the appropriate service