Sony XM-255EX Service Manual
Stereo power amplifier
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Also See for XM-255EX:
- Operating instructions (4 pages) ,
- Operating instructions manual (16 pages)
Related Manuals for Sony XM-255EX
Summary of Contents for Sony XM-255EX
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Page 1: Specifications
XM-255EX/255NX SERVICE MANUAL Canadian Model AEP Model E Model XM-255EX UK Model XM-255NX Photo : XM-255EX SPECIFICATIONS STEREO POWER AMPLIFIER MICROFILM... -
Page 2: Table Of Contents
TABLE OF CONTENTS Specifications ................1 1. GENERAL ............... 3 2. DISASSEMBLY 2-1. Main Board Removal ........... 6 3. DIAGRAMS 3-1. Block Diagram .............. 7 3-2. Printed Wiring Boards ..........8 3-3. Schematic Diagrams ............. 9 4. EXPLODED VIEW ............10 5. -
Page 3: General
SECTION 1 This section is extracted from instruction manual. GENERAL... -
Page 6: Disassembly
SECTION 2 DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. 2-1. MAIN BOARD REMOVAL 1 Two screws (+BTP3x4) 2 Two screws (+BTP3x4) 3 Bottom plate 4 Screw 7 Two screws (+BTP3x8) (+BTP3x8) 6 Two screws 8 S crew (+BTP3x6) (+BTP3x4) Heat sink... -
Page 7: Diagrams
XM-255EX/255NX SECTION 3 DIAGRAMS 3-1. BLOCK DIAGRAM THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND CNJ101 SCHEMATIC DIAGRAMS. (4/4) (In addition to this, the necessary OUTPUT note is printed in each block.) CN201 (THROUGH) VR101 VR102 PRE AMP FILTER... -
Page 8: Printed Wiring Boards
XM-255EX/255NX 3-2. PRINTED WIRING BOARDS • WAVEFORMS • Semiconductor MAIN BOARD Location 28Vp-p 12.8Vp-p Ref. No. Location C952 C953 PL901 J914 D301 31 µ sec 31 µ sec C933 J912 ZD910 D302 J928 R950 D401 R951 C948 R945 Q943 D402... -
Page 9: Schematic Diagrams
XM-255EX/255NX 3-3. SCHEMATIC DIAGRAMS... - Page 12 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C906 1-126-933-11 ELECT 100uF < JACK > C907 1-130-471-00 MYLAR 0.001uF C908 1-163-021-11 CERAMIC CHIP 0.01uF J190 1-216-295-00 SHORT J191 1-216-295-00 SHORT C909 1-128-551-11 ELECT 22uF J192 1-216-295-00 SHORT C910 1-128-551-11 ELECT...
- Page 13 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark Q908 8-729-034-51 TRANSISTOR KTC3875 R317 1-249-907-11 CARBON 1/4W Q941 8-729-034-50 TRANSISTOR KTA1504 R318 1-216-308-00 METAL CHIP 1/10W Q942 8-729-034-51 TRANSISTOR KTC3875 R319 1-216-308-00 METAL CHIP 1/10W Q943 8-729-037-03 TRANSISTOR KTA1266GR-AT R320 1-205-991-11 METAL...
- Page 14 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R912 1-216-073-00 METAL CHIP 1/10W < VARIABLE RESISTOR > R913 1-216-121-00 RES-CHIP 1/10W VR101 1-225-647-11 RES, VAR 20K/20K/20K/20K R914 1-216-073-00 METAL CHIP 1/10W VR102 1-225-648-11 RES, VAR 5K/5K R915 1-216-093-00 RES-CHIP 1/10W...
- Page 15 XM-255EX/255NX Sony Corporation 9-870-069-11 2000A090267-1 Mobile Electronics Division Company Printed in Japan © 2000. 1 Published by General Engineering Dept.