Sony XM-2252HX Service Manual
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Sony XM-2252HX Service Manual

Sony XM-2252HX Service Manual

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See also: Operating Instructions
XM-2252HX

SERVICE MANUAL

US Model
Canadian Model
AEP Model
UK Model
SPECIFICATIONS
STEREO POWER AMPLIFIER
MICROFILM
– 1 –

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Summary of Contents for Sony XM-2252HX

  • Page 1: Service Manual

    XM-2252HX SERVICE MANUAL US Model Canadian Model AEP Model UK Model SPECIFICATIONS STEREO POWER AMPLIFIER MICROFILM – 1 –...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS Specifications ................1 1. SERVICING NOTE ............2 2. GENERAL ............... 3 3. ELECTRICAL ADJUSTMENTS Self-Diagnosis Function ............7 Idling Adjustment ..............8 4. DISASSEMBLY 5-1. Bottom Plate, Panel (Front), Panel (Rear) Removal ..9 5-2. AMP/Power Board Removal ........9 5.

  • Page 3: General

    SECTION 2 This section is extracted from instruction manual. GENERAL – 3 –...
  • Page 4 – 4 –...
  • Page 5 – 5 –...
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  • Page 7: Electrical Adjustments

    SECTION 3 ELECTRICAL ADJUSTMENTS SELF-DIAGNOSIS FUNCTION In addition, this unit comes with a function which alerts when set- tings of the Hi-Current and Hi-Voltage modes are wrong. There are two switches at the base of this unit to switch to the Hi-Current and Hi-Voltage modes respectively.

  • Page 8: Idling Adjustment

    IDLING ADJUSTMENT 2. Set the input signal setting to non-signal. • L-CH (R-CH) Adjusting Method 3. Apply a 14.4V power supply voltage between the +12V and RE- MOTE terminals and GND terminal. Connection: Digital voltmeter 4. Adjustments Connect a digital voltmeter between the two terminals of the cement resistors R149 and R150 (0.03 Ω) indicated as TP101 (L-CH TP101) and TP102 (TP201 and TP202 for R-CH).

  • Page 9: Disassembly

    XM-2252HX SECTION 5 SECTION 4 DIAGRAMS DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. • WAVEFORMS THIS NOTE IS COMMON FOR PRINTED WIRING 4-1. BOTTOM PLATE, PANEL (FRONT), PANEL (REAR) REMOVAL BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed...

  • Page 10: Printed Wiring Board - Amplifier Section

    XM-2252HX 5-2. PRINTED WIRING BOARD – AMPLIFIER SECTION – • Semiconductor Location Ref. No. Location D101 AMPLIFIER BOARD (Conductor side) VR101 D102 IDLING D103 Q111 D104 Q112 Q110 Q113 Q109 D105 R159 TH801 D201 R137 C116 HIGH LEVEL R136 R135...

  • Page 11: Schematic Diagram - Amplifier Section

    XM-2252HX 5-3. SCHEMATIC DIAGRAM – AMPLIFIER SECTION – • See page 10 for IC Block Diagrams. POWER AMP IDLING LOW BOOST LEVEL POWER AMP IDLING 17, 18 – 13 – – 14 –...

  • Page 12: Printed Wiring Board - Power Section

    XM-2252HX 5-4. PRINTED WIRING BOARD – POWER SECTION – POWER BOARD (Conductor side) S801 HI-CURRENT JW359 JW361 JW360 JW360 R928 R926 R927 R925 Q907 Q905 Q906 Q904 JW358 JW267 D920 D916 D915 D919 JW357 JW356 JW295 JW293 JW355 JW291 F901...

  • Page 13: Schematic Diagram - Power Section

    XM-2252HX 5-5. SCHEMATIC DIAGRAM – POWER SECTION – • See page 10 for IC Block Diagrams. 13, 14 DC FAN MOTOR S801 S802 LED COLOR MODE AMBER Prohibit GREEN HI-CURRENT GREEN HI-VOLTAGE AMBER Prohibit – 18 – – 17 –...

  • Page 14: Exploded Views

    XM-2252HX SECTION 6 EXPLODED VIEWS (2) AMP/POWER BOARD SECTION NOTE: • Hardware (# mark) list and accessories and pack- • Items marked “*” are not stocked since they are ing materials are given in the last of this parts list.

  • Page 15: Electrical Parts List

    SECTION 7 AMPLIFIER ELECTRICAL PARTS LIST Note: • Items marked “*” are not stocked since they are • SEMICONDUCTORS When indicating parts by reference In each case, u: µ , for example: seldom required for routine service. Some delay number, please include the board uA...: µ...
  • Page 16 AMPLIFIER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C963 1-126-059-11 ELECT 10uF Q113 8-729-049-53 TRANSISTOR FX50SMJ-2 C964 1-126-059-11 ELECT 10uF Q114 8-729-205-76 TRANSISTOR 2SC3138Y-TE85L Q115 8-729-216-21 TRANSISTOR 2SA1162-Y < CONNECTOR > Q116 8-729-105-08 TRANSISTOR 2SA1330 CN802 1-537-478-21 TERMINAL BOARD (4P) (SPEAKER OUT) Q117...
  • Page 17 AMPLIFIER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R114 1-208-534-61 RES,CHIP 100K 1/10W R202 1-208-518-61 RES,CHIP 1/10W R116 1-216-635-11 METAL CHIP 0.5% 1/10W R203 1-208-518-61 RES,CHIP 1/10W R204 1-208-518-61 RES,CHIP 1/10W R117 1-208-534-61 RES,CHIP 100K 1/10W R205 1-208-806-11 RES,CHIP...

  • Page 18: Amplifier Power

    AMPLIFIER POWER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R265 1-216-603-11 METAL CHIP 0.5% 1/10W < THERMISTOR > R266 1-216-603-11 METAL CHIP 0.5% 1/10W TH801 1-809-664-51 THERMISTOR, POSITIVE R267 1-240-882-11 REGISTER 0.03 TH802 1-809-664-51 THERMISTOR, POSITIVE R268 1-240-882-11 REGISTER 0.03...
  • Page 19 POWER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C940 1-126-023-11 ELECT 100uF < FUSE > C941 1-126-023-11 ELECT 100uF C942 1-126-023-11 ELECT 100uF F901 1-533-743-11 FUSE (BLADE TYPE)(AUTO FUSE)(40A) C959 1-163-021-11 CERAMIC CHIP 0.01uF F902 1-533-743-11 FUSE (BLADE TYPE)(AUTO FUSE)(40A) C960 1-163-021-11 CERAMIC CHIP...
  • Page 20 XM-2252HX POWER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R838 1-208-770-11 RES,CHIP 1/10W R957 1-216-667-11 METAL CHIP 4.7K 0.5% 1/10W R839 1-216-663-11 METAL CHIP 3.3K 0.5% 1/10W R958 1-216-635-11 METAL CHIP 0.5% 1/10W R840 1-208-770-11 RES,CHIP...

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