Sony XES-M50 Service Manual
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Sony XES-M50 Service Manual

Sony XES-M50 Service Manual

Stereo power amplifier
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SERVICE MANUAL

SPECIFICATIONS

MICROFILM
XES-M50

TABLE OF CONTENTS

1.
GENERAL
................................................................... 2
2.
......................................................... 9
3.
4.
DAIGRAMS
4-1. Printed Wiring Boards ..................................................... 12
4-2. Schematic Diagram ......................................................... 15
5.
6.
STEREO POWER AMPLIFIER
US Model
Canadian Model
AEP Model
UK Model
E Model
......................... 11
................................................ 18
............................... 21

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Summary of Contents for Sony XES-M50

  • Page 1 XES-M50 SERVICE MANUAL US Model Canadian Model AEP Model UK Model E Model SPECIFICATIONS TABLE OF CONTENTS GENERAL ..............2 DISASSEMBLY ............9 ELECTRICAL ADJUSTMENTS ......11 DAIGRAMS 4-1. Printed Wiring Boards ............. 12 4-2. Schematic Diagram ............15 EXPLODED VIEWS ..........
  • Page 9 SECTION 2 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. CHASSIS (UPPER) 1 two hexagon soket bolts 4 cover (A) (4 × 17) 2 two hexagon 2 two hexagon socket bolts (4 × 10) soket bolts (4 × 10) 1 two hexagon soket bolts 3 cover (B)
  • Page 10 AMP BOARD 4 two screws (B4 × 14) 2 two screws (BV M3 × 12) 5 bracket (TR) 3 two spacers 6 four screws (B3 × 10) 7 four screws (B3 × 4) 7 four screws (B3 × 4) 1 three connectors 9 AMP board (CNP103, 105, 205) 4 two screws...
  • Page 11 SECTION 3 ELECTRICAL ADJUSTMENT IDLING CURRENT ADJUSTMENT Procedure: 1. Rotate Semi-fixed resistors VR102 and VR202 fully counter- clockwise as viewed from the solder side. 2. No signal is entered, as input signal. 3. Apply the source voltage 14.4 V between +12 V, REMOTE and GND terminals.

  • Page 14: Exploded Views

    SECTION 5 EXPLODED VIEWS NOTE: • Items marked “*” are not stocked since they • -XX and -X mean standardized parts, so they are seldom required for routine service. Some may have some difference from the original delay should be anticipated when ordering one.
  • Page 15 (2) FRONT, REAR PANEL SECTION M101 F101, 201 M201 supplied with CNJ101 supplied with CNJ201 CNJ101 CNJ201 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-366-821-01 BUSHING (RED) * 65 3-009-995-01 PANEL (REAR) 3-012-381-01 SCREW (2.6X6), +K 1-782-013-11 CORD (WITH CONNECTOR) (REMOTE) 3-366-821-11 BUSHING (WHITE) * 67...
  • Page 16 (3) CHASSIS (LOWER) SECTION T102, 202 supplied with VR101 supplied with VR201 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * 101 3-009-993-01 CHASSIS (LOWER) * 111 3-011-287-01 RETAINER (TRANSFORMER) 3-009-997-01 BOSS * 112 3-014-984-01 SPACER (TRANSFORMER) * 103 3-010-003-01 BRACKET (TR) 3-012-050-01 SCREW (3X10) (COPPER PLATING), +B...
  • Page 17 JACK (L) JACK (R) SECTION 6 ELECTRICAL PARTS LIST L-CH AMP NOTE: • Due to standardization, replacements in the • Items marked “*” are not stocked since they When indicating parts by reference parts list may be different from the parts speci- are seldom required for routine service.
  • Page 18 L-CH AMP Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark FB102 1-410-396-41 FERRITE BEAD INDUCTOR R111 1-247-727-11 CARBON 1/2W FB103 1-410-396-41 FERRITE BEAD INDUCTOR R112 1-259-708-11 CARBON R113 1-259-708-11 CARBON < TARMINAL > R114 1-259-676-11 CARBON R115 1-219-695-11 METAL PLATE FJ101...
  • Page 19 L-CH AMP R-CH AMP Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < TRANSFORMER > C224 1-117-712-11 ELECT 4200uF C225 1-117-712-11 ELECT 4200uF T101 1-431-185-11 TRANSFORMER, CONVERTER C226 1-164-732-11 CERAMIC 0.1uF T102 1-431-186-11 TRANSFORMER, DC-DC CONVERTER C227 1-164-732-11 CERAMIC 0.1uF...
  • Page 20 R-CH AMP Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < TRANSISTOR > R222 1-249-520-11 CARBON 1/4W R223 1-249-504-11 CARBON 1/4W Q201 8-729-203-21 TRANSISTOR 2SK389-GR R224 1-249-504-11 CARBON 1/4W Q202 8-729-040-33 TRANSISTOR 2SJ109GR R225 1-249-504-11 CARBON 1/4W Q203 8-729-201-56 TRANSISTOR 2SK246-GR2...
  • Page 21 Ref. No. Part No. Description Remark THP202 1-809-664-21 THERMISTOR, POSITIVE < VARIABLE RESISTOR > VR201 1-225-433-11 RES, VAR, CARBON 50K (LEVEL) VR202 1-225-430-11 RES, ADJ 5K ************************************************************ MISCELLANEOUS ************** 1-782-013-11 CORD (WITH CONNECTOR) (REMOTE) 1-694-290-11 TERMINAL, SOLDERLESS CNJ101 1-573-057-21 JACK, PIN 1P (WHITE) (INPUT) (L-CH) CNJ201 1-573-057-31 JACK, PIN 1P (RED) (INPUT) (R-CH) F101 1-532-947-11 FUSE (BLADE TYPE) (AUTO FUSE) (30A) (L-CH)
  • Page 22 XES-M50 Sony Corporation 98F057542-1 9-925-539-13 Personal & Mobile Communication Company Printed in Hungary © 1998. 6 – 26 – Published by Quality Assurance Dept.

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