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SERVICE MANUAL

Sony Corporation

Published by Sony Techno Create Corporation

XM-N502

SPECIFICATIONS

STEREO POWER AMPLIFIER

9-893-785-01

2013G33-1

© 

2013.07

Canadian Model

AEP Model

UK Model

E Model

Ver. 1.0  2013.07

Circuit system

OTL (output transformerless) 
circuit
Pulse power supply

Inputs

RCA pin jacks

Input level adjustment range

0.3 – 6 V (RCA pin jacks)

Outputs

Speaker terminals

Speaker impedance

2 – 8 

Ω

 (stereo) 

4 – 8 

Ω

 (when used as a bridging 

amplifier)

Maximum output

Rated output 
(supply voltage at 14.4 V, 20 Hz – 20 kHz, 1 % THD)

Frequency response

5 Hz – 50 kHz (   dB)

Harmonic distortion

0.05 % or less (at 1 kHz, 4 

Ω

)

Low-pass filter

80 Hz, 18 dB/oct

Power requirements

12 V DC car battery  
(negative ground)

Power supply voltage

10.5 – 16 V
at rated output: 15 A  
(4 

Ω

, 65 W × 2) 

Remote input: 1 mA

Dimensions

Approx. 271 × 55 × 185 mm
(w/h/d) not incl. projecting parts 
and controls

Mass

Approx. 1.5 kg not incl. 
accessories

Supplied accessories

Mounting screws (4)

Protection cap (1)

Design and specifications are subject to change 
without notice.

High level input connector
(E and Indian models only)

(E and Indian models only)

2.8 – 12 V (High level input)

High level input cord (1)
(E and Indian models only)

150 W × 2 (at 4 

Ω

500 W (BTL, at 4 

Ω

)

65 W × 2 (at 4 

Ω

85 W × 2 (at 2 

Ω

175 W (BTL, at 4 

Ω

)

NOTES  ON  CHIP  COMPONENT  REPLACEMENT

•  Never reuse a disconnected chip component.
•  Notice that the minus side of a tantalum capacitor may be dam-

aged by heat.

Summary of Contents for XM-N502

Page 1: ...kHz 4 Ω Low pass filter 80 Hz 18 dB oct Power requirements 12 V DC car battery negative ground Power supply voltage 10 5 16 V at rated output 15 A 4 Ω 65 W 2 Remote input 1 mA Dimensions Approx 271 55 185 mm w h d not incl projecting parts and controls Mass Approx 1 5 kg not incl accessories Supplied accessories Mounting screws 4 Protection cap 1 Design and specifications are subject to change wit...

Page 2: ...nput the signal and verify that there is no output on the SP OUT even when the volume is increased 3 Verify that the protector is released and there is an output on the SP OUT when the short is removed 4 Likewise perform items 1 to 3 for TH502 TH503 and TH504 Over Current Protect 1 Short between the positive and negative sides of the speaker output terminals CN903 with the power on 2 Verify that t...

Page 3: ...s para los tornillos A continuación perfore los orificios con un diámetro de aproximadamente 3 mm y monte la unidad sobre el tablero con los tornillos de montaje suministrados Ya que la longitud de estos tornillos es de 15 mm compruebe que el grosor del tablero de montaje sea superior a 15 mm Conexiones de alimentación Realice las conexiones de terminal Ȓ Pase los cables a través de la cubierta co...

Page 4: ...cal order given 3 2 BOTTOM PLATE BLOCK 3 2 BOTTOM PLATE BLOCK Page 4 3 3 MAIN BOARD BLOCK Page 5 SET 3 4 MAIN BOARD Page 5 Bottom view Note Please spread a sheet under a unit not to injure heat sink main 4 bottom plate block 3 two claws 1 two screws B TT B TYPE 3 u L 1 two screws B TT B TYPE 3 u L 2 Remove the bottom plate block in the direction of an arrow ...

Page 5: ...in 3 MAIN board block Note 2 When installing the MAIN board block align two holes and two bosses hole hole 4 MAIN board RV301 RV301 RV301 3 sheet heat transfer S sheet heat transfer S 6KHHW KHDW WUDQVIHU VHWWLQJ NG OK 2 front panel front panel front panel MAIN board 1 screw P TT B TYPE 3 u L 1 screw P TT B TYPE 3 u L 1 screw P TT B TYPE 3 u L 1 screw P TT B TYPE 3 u L Note When installing the fron...

Page 6: ...XM N502 6 MEMO ...

Page 7: ...l designation A B Line B B Line Power voltage is dc 14 4 V and fed with regulated dc power supply from 12 V and REM terminals Voltages and waveforms are dc with respect to ground under no signal conditions no mark POWER ON Voltages are taken with VOM Input impedance 10 M Voltage variations may be noted due to normal production tolerances Waveforms are taken with a oscilloscope Voltage variations m...

Page 8: ...3 DA2J10100L D515 10k R506 DZ2J068M0L D513 0 1 C502 TH501 100k R509 0 1 C505 100k R510 10k R505 470 R246 2 2k R503 2SC3052EF T1 LEF Q511 2SC3052EF T1 LEF Q502 10k R236 2SC3052EF T1 LEF Q304 4 7k R241 10k R215 0 47 C216 50V 22 C208 4 7k R214 4 7k R213 0 47 C218 0 1 C217 50V 22 C220 10k R208 10k R212 330 R242 10k R243 10k R112 330 R142 MC2838 T112 1 D503 TP2 C508 100p R515 220k 1 2 3 4 4P CN901 L R ...

Page 9: ...0A15 D303 KTA1281Y AT Q902 KTC3198GR A Q317 220 R129 TP11 1 5k R121 1 5k R238 2SC3052EF T1 LEF Q903 10k R903 1k R923 16V 100 C905 0 1 C312 0 1 C902 47p C112 22p C213 TP21 2 2 R231 33k R218 2 2k R932 KTA1023 Y AT P Q209 2SC3052EF T1 LEF Q307 16V 100 C907 2 2k R216 2SC3052EF T1 LEF Q212 TP16 DA2J10100L D101 DA2J10100L D201 RT1P441C TP 1 Q905 0 047 C115 4 7k R916 10k R933 1 5k R120 6 8k R914 TP8 KTA1...

Page 10: ... TP14 TP15 TP16 TP17 TP18 TP19 D101 D102 Q200 TP20 Q201 TP21 Q202 TP22 Q203 TP23 TP24 TP25 Q206 Q207 TP28 D305 D306 D307 Q212 D501 D502 D503 D512 D513 D514 D515 IC301 IC303 D904 D905 D906 D919 IC901 R202 R203 R205 R206 R207 R208 E B E B B E B E B B E B E B E B E B E E E B G S G S D D E B E B B E B E B E B E B E B E R232 C208 C209 C211 C220 RV301 Q104 Q105 Q108 Q109 Q110 Q111 Q313 Q314 Q315 Q316 Q3...

Page 11: ...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 ser vice Some delay should be anticipated when ordering these items The mechanical parts with no reference number in the exploded views are not sup plied Color Indication of Appearance Parts Ex ample KNOB BALANCE WHITE RED Parts Color Cabinet s Colo...

Page 12: ... 32 V Q110 8 729 024 79 TRANSISTOR 2SC5100 P See Note Q110 8 729 024 80 TRANSISTOR 2SC5100 Y See Note Q111 8 729 024 76 TRANSISTOR 2SA1908 P See Note Q111 8 729 024 77 TRANSISTOR 2SA1908 Y See Note Q210 8 729 024 79 TRANSISTOR 2SC5100 P See Note Q210 8 729 024 80 TRANSISTOR 2SC5100 Y See Note Q211 8 729 024 76 TRANSISTOR 2SA1908 P See Note Q211 8 729 024 77 TRANSISTOR 2SA1908 Y See Note Q910 6 550...

Page 13: ...RAMIC CHIP 0 1uF 10 25V C507 1 162 927 11 CERAMIC CHIP 100PF 5 50V E IND C508 1 162 927 11 CERAMIC CHIP 100PF 5 50V E IND C509 1 162 927 11 CERAMIC CHIP 100PF 5 50V E IND C510 1 162 927 11 CERAMIC CHIP 100PF 5 50V E IND C514 1 118 347 11 CERAMIC CHIP 0 1uF 10 25V E IND C515 1 118 347 11 CERAMIC CHIP 0 1uF 10 25V E IND C523 1 118 347 11 CERAMIC CHIP 0 1uF 10 25V E IND C524 1 118 347 11 CERAMIC CHIP...

Page 14: ...12 01 TRANSISTOR KTC1027 Y AT P Q109 6 552 810 01 TRANSISTOR KTA1023 Y AT P Q110 8 729 024 79 TRANSISTOR 2SC5100 P See Note Q110 8 729 024 80 TRANSISTOR 2SC5100 Y See Note Q111 8 729 024 76 TRANSISTOR 2SA1908 P See Note Q111 8 729 024 77 TRANSISTOR 2SA1908 Y See Note Q112 8 729 620 07 TRANSISTOR 2SC3052EF T1 LEF Q200 6 551 863 01 TRANSISTOR RTAN140C T112 1 Q201 6 551 863 01 TRANSISTOR RTAN140C T11...

Page 15: ...3 11 METAL CHIP 1 5K 5 1 10W R222 1 216 809 11 METAL CHIP 100 5 1 10W R223 1 216 809 11 METAL CHIP 100 5 1 10W R224 1 216 841 11 METAL CHIP 47K 5 1 10W R225 1 216 841 11 METAL CHIP 47K 5 1 10W R226 1 218 843 11 METAL CHIP 680 0 5 1 10W R227 1 218 831 11 METAL CHIP 220 0 5 1 10W R228 1 216 837 11 METAL CHIP 22K 5 1 10W R229 1 216 182 00 METAL CHIP 220 5 1 8W R230 1 216 134 00 METAL CHIP 2 2 5 1 8W ...

Page 16: ...32 1 216 206 00 METAL CHIP 2 2K 5 1 8W R933 1 216 833 11 METAL CHIP 10K 5 1 10W R939 1 216 833 11 METAL CHIP 10K 5 1 10W R940 1 216 845 11 METAL CHIP 100K 5 1 10W R941 1 216 833 11 METAL CHIP 10K 5 1 10W R942 1 216 833 11 METAL CHIP 10K 5 1 10W R943 1 216 841 11 METAL CHIP 47K 5 1 10W VARIABLE RESISTOR RV301 1 227 768 11 RES VAR CARBON 10K 10K LEVEL SWITCH S301 1 798 257 11 SWITCH SLIDE LPF 80Hz T...

Page 17: ...MEMO XM N502 17 ...

Page 18: ... HISTORY Checking the version allows you to jump to the revised page Also clicking the version at the top of the revised page allows you to jump to the next revised page Ver Date Description of Revision 1 0 2013 07 New ...

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