Philips NTRX-505 Service Manual

Mini Hi-Fi

System

NTRX505/

all

TABLE OF CONTENTS

Chapter

Technical specification ...........................................................1-14

Safety instruction......................................................................2-1

Set Block diagram ....................................................................3-1

Set Wiring diagram...................................................................4-1

Disassembly diagram ...............................................................5-1

Main and jack board

Circuit diagram.......................................................6-1...6-2...6-3

Layout diagram................................................................6-4..6-5

AMP board

Circuit diagram........................................................................7-1

Layout diagram.......................................................................7-2

MCU board and CD board

Circuit diagram...............................................................8-1...8-2

Layout diagram..............................................................8-3...8-4

Mechanical Exploded view.......................................................9-1

© Copyright 2014 WOOX Innovations Limited.

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system
or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise
without the prior permission of WOOX Innovations. Philips and the Philips’Shield Emblem are
registered trademarks of Koninklijke Philips N.V. and are used by WOOX Innovations Limited
under license from Koninklijke Philips N.V.

Published by Fei & Kelly 1429 Subject to modification

3140 038 62280

Version 1.0

Location of PC Boards

1-2

Technical Specification and Connection Facilities

MIC Board

CD Board

DJ EFFECT Board

Main Board

Amp Board

Volume Board

Tuner Board

BT Board

Jack Board

VERSION VARIATION

Type /Versions:

Board in used:

MAIN BOARD
VOLUME BOARD
AMP BOARD
DJ EFFECT BOARD

JACK BOARD

TUNER BOARD

SMPS BOARD
MCU+CD BOARD

Features

RDS
VOLTAGE SELECTOR
ECO STANDBY - DARK

Service policy

Type /Versions:

Feature diffrence

SMPS Board

/55

C+M
C+M
C+M

C+M
C+M

C+M

M

+M

C

/55

/78

C+M
C+M
C+M
C+M
C+M

C+M

M

+M

C

/78

NTRX505

NTRX505

* TIPS : C -- Component Lever Repair.

M -- Module Lever Repair

-- Used



NX5 NX7 ALL SH190 Contact List

No. Descrpitopn Page

 *(1(5$/3$57)52173$11(/63(&,&),&$7,21 
 *(1(5$/3$57%$&.3$11(/63(&,&),&$7,21 
 *(1(5$/3$57*(1(5$/63(&,&),&$7,21 
 *(1(5$/3$577(&+1,&$/63(&,&),&$7,21 
 *(1(5$/3$57$8',26,*1$/63(&,&),&$7,21 
 *(1(5$/3$57&/2&.7,0(563(&,&),&$7,21 
 *(1(5$/3$57781(563(&,&),&$7,21$OO 
 *(1(5$/3$57&'0363(&,&),&$7,21 

 *(1(5$/3$579(56,2129(59,(:63(&,&),&$7,21 

1-4

GENERAL DESCRIPTION

MP3-USB Mini Hi FiSystem with Digital Tuner, 1CD/mp3 BT for NX5 NX7 ALL)

(125W x 4 FOR NX5; 239W x 4 FOR NX7 ALL Power Amplifier, LCD Display, Aux in ,

Remote control

LIFETIME : 7 Years

Class Tuner USB Recorder

IX

II X X

III

Page 10

SAFETY requirements

Version Safety EMC

/98 EN 60065 CISPR 13

/55 EN 60065 CISPR 13

/12 EN 60065

/05

/79

/37 UL 60065 FCC99

RADIATION / IMMUNITY requirments ( EMC ) for 12 version only

CLIMATIC requirements

ALL climates

MODERATE climates : + N.A till N.A Degree

PERFORMANCE CLASSES

POWER SUPPLY
MAINS ( A.C. )

Version

Voltage Selection

Frequency

Supply + Amplifier

N/A

3-7 9

EN 55013 / EN 55020

EN 60065 EN 55013 / EN 55020

EN 60065

: + 5 Dregree till + 35 Degree

120 Vac (110V-10%,

120V ±10%)

/ 37

No

60Hz ±5%

230 Vac

± 10 %

/ 12 /05

No

50Hz

127 / 240 Vac

± 15 %

/ 55 /98/96

Yes

60/50Hz

CISPR 13

240 Vac

± 10 %

/ 79

No

50Hz

Clock CD-mp3

X

811

220 Vac

/ 61, /93

60Hz, 50Hz

X

f 10 %

No

POWER CONSUMER

/12 / 55/98/96 /79 /61 /93 / 37

Stadby : < 25W

( DEMO mode " OFF " ) , NOM. A, INPUT

Maximum :

ECO Power mode :

Quality : 0.8 % ( Major ) 2.0 % ( Mirror )

Reliability : 3.0 % ( C 42 )

Tested according to General Test Instruction refer to PHILIPS standary ( UAN -D1591 )

Measured according to PHILIPS standary ( UAN - L1059 ) unless other wise stated

All not mentioned date, please refer to PHILIPS standary ( XUW - 0010 - JUNE 2001 )

DERIVED REMARKS APPROBATION

Remarks

Class No

<110W <110W <110W

<= 1W no <= 1W

GENERAL PART 1 - GENERAL SPECICFICATION

< 25W

NX5 NX7 ALL

NAME : MZ.FENG
KT CHECK

DATE :

10 10

<25W

<130W

Ver

1

2

3

<25W

<110W

<130W@ 1/8 Prated , NOM. A, INPUT <130W <130W

<= 1W

Issued Date

16-4-2013

A4SH 190 - 3

1-5

TECHNIAL DESCRIPTION

Total power 500W FOR NX5 1000W FOR NX7 ), FOUR INPUT SOURCE, ( Digital Sound Control ). IS ( Incredible Sound )

GENERAL PART

OUTPUT stage Protection : Yes Temperature : Yes. Shorcircuit : Yes

LoudSpeaker D.C. Protection : Yes.

INDICATORS

Standby Mode Indicator : LCD display Clock active

ECO Mode Indiicator : LCD turns off, ECO - Standby LED turn on

ELECTRICAL DATA

DSC : Rock, Pop, Jazz, Optimal Channel Differencer at -46dB

MAX YES Hum ( Volume Minimun - 50mW )( A - weighted )

IS : YES Residual Noise ( Volume Minium )( A - weighted ) < 100

VAC : N/A Channel Separation ( at 1 kHz )

WOOX : N/A Signal / Noise ( weighted )

Frequency Response ( +/- 3dB ), reference 1kHz 60Hz - 16kHz

INTERCONNECTS

Input Sensitity(

Tuner
CD 0 dB track ( Audio Disc 1, Trk 35 ) Subwoofer Out N.A

USB 0 dB track Headphone

AUX

Microphone

OUTPUT POWER ( * 1 )

Power output ( RMS ) FOR NX5 ALL Low channel

±2 dB)rated ouput power at 1 kHz and 10kHz.

FM 67.5KHz,AM 80% Modulation - 3dB

:
:

:

Nor: 600mV Lim: 450mV ~ 550mV for /37 Digital Coaxial Out N.A

:

Nor: 2V Lim: 1.5V ~ 2.5V for /55

:

input leven Nor: 1.5mv Lim:0.8-2.5mv

5V RKPRXWSXW 0:

:

At THD = 10% (Measured with 20Hz-20KHz filter), both channels driven ( Low channel at 1KHz, High channel at 10k )

Line Output Voltage ( *1 )

Line Out ( Left / Right ) N.A

Booster Out

125W per channel ( Lim '-1dB )˄CD USB AUX˅

High channel

125W per channel ( Lim '-1dB )˄CD USB AUX˅

3

< 200 nW

ı 45
ı 60

N.A

N.A

dB

nW

dB

dB

Power output ( RMS ) FOR NX7 ALL

LOW Frepuency Frequency Response - 60Hz - ref. 1kHz ±3 dB

HI Frepuency Frequency Response -6KHz - ref. 10kHz ±3 dB

Rated Impedance

: 3 Ohms

Remarks

( *1 ) Electrical parameters are to be measuremend at specker terminals

with rated input signal in AUX mode; DSC setting in Jazee mode with DBB OFF

IS off and OSM unless specified otherwise

One channel signal input ( L or R ), two channel load ( < Low ch. L + High ch. L > or < Low ch. R + High ch.

Measuremend output power only for AUX model and CD model of used audio analyzer equipment.

GENERAL PART 1 - TECHNAICAL SPECICFICATION

Class No

Low channel

High channel

Frequency Response

NX5 NX7 ALL

NAME : MZ.FENG
KT CHECK

DATE :

10 10 SH 190 - 4 A4

250W per channel ( Lim '-1dB )˄CD USB AUX˅
250W per channel ( Lim '-1dB )˄CD USB AUX˅

R > )

Ver

1

2

3

Issued Date

16-4-2013

AUDIO SIGNAL PROCESSING

MP3-USB Mini Hi Fi System with Digital Tuner ,Class AB Power Amplifier

1 ) DSC ( Digital Sound Control )

Select AUX as input source with the following set conditions:

Inject sine wave 2V at 1 KHz to L/R channels of AUX-IN socket.

Set DSC to JAZZ(Flat) mode and switch off DBB. Max off

Refence level for DSC's without DBB on=500mW.

Refence level for DSC'S with DBB on=1.7V at the speaker terminal .

Inject sine wave 2V to AUX-IN socket with frequencies indicated in Table 1.

1-6

Tabel 1a ( Tolerance ± 3dB )

Frequency

60 Hz -1.8 dB + 3 dB + 6dB +0.5dB

1 kHz

10 kHz

Tabel 1b ( Tolerance ± 3dB )

Frequency

60 Hz +3 dB +8dB

1 kHz 0 dB +1 dB 1 dB

Tabel 1b ( Tolerance ± 3dB )

Frequency

1 kHz

10kHz -1.5 dB

Tabel 1b ( Tolerance ± 3dB )

Frequency

60 Hz

1 kHz +0dB +1dB +1dB

10 kHz -0.5 dB + 2dB +3dB + 1dB

JAZZ POP ROCK

0 dB 0.5db

-1.5 dB -0.6dB +1 dB -0.5 dB

JAZZ POP ROCK TECHNO

JAZZ POP ROCK

+0 dB

JAZZ

+14 dB

+ 14.0 dB

+1dB

DSC Modes with DBB 3 ON

POP

+ 17.0 dB + 20.0 dB

DSC Modes with DBB Off

1 dB

DSC Modes with DBB 1 ON

+ 14DŽ5dB

DSC Modes with DBB 2 ON

+ 15.0 dB60 Hz +8dB

+1 dB +1 dB

+2 dB

ROCK

TECHNO

0.5dB

5.5 dB

+1 dB

-0.5dB 10 kHz -1.5 dB +-0.6dB +1dB

TECHNO

+ 11.0 dB

- 0.5dB + 1dB

TECHNO

+ 18.0 dB

+1 dB

SAMBA

+0.3dB

0

-3

SAMBA

+5.5dB

0

-3

SAMBA

+11dB

0

-0.5

SAMBA

+18dB

0

1

Class No

NAME : MZ.FENG DATE:25/08/07

KT CHECK

GENERAL PART 1 - GENERAL SPECICFICATION

NX5 NX7 ALL

10 10 SH 190 - 5

DATE :

Ver

1

2

3

Issued Date

16-4-2013

A4



1

AUDIO SIGNAL PROCESSING

MP3 - USB Mini Hi Fi System with Digital Tuner , 1CDCfor NX5 NX7 ALL

3 ) IS ( Incredible Sound )

Select AUX as input source.

Inject sine wave 2V at 1kHz to AUX-IN socket, one channel at a time (input level 500mV for /37,2V for /55 ).

Set DSC to JAZZ ( Flat ) mode and switch of DBB, OSM & INCREDIBLE SURROUND.

Adjust volume level to obtain 500mW across 4OHM load at L/R speaker output.

Inject sine wave 2V to AUX-IN socket withfrequency indicated in Table 3 (input level 500mV for /37,2V for /55 ).

Right channel reference to left channel.

Table 3 ( Tolerence ± 3 dB )

FREQ

1 kHz + 3.5 dB -0 dB

10 kHz 2V - - 0.5 dB

Note : The above specs also apply to right channel.

4 ) DSC Mode ( Jazz , Rock, Techno and Optimal )

The VEC modes are software controlled by switching the combination between DBB and DSC modes

as show in Table 4.

DSC MODE

Jazz

POP

Techno DBB 3

Optimal

Note : When these modes are activ DBB and DSC will not be displayed

5 ) MAX ( Maximum Sound )

INPUT LEVE L

LEFTRIGHTLEFTRIGHT

2V60 Hz - - 1.0 dB -

2V - 0 -

DBB Level preset

DBB OFF

DBB 2

DBB 1

IS OFF IS ON

OUTPUT LEVEL

- + 3.0 dB -7.0 dB

LEFT RIGHT

+2.0 dB -17.0 dB

Select AUX as input source.

Inject sine wave 2V at 1kHz to AUX-IN socket, one channel at a time (input level 600mV for /37,2V for /55 ).

Set DSC to JAZZ ( Flat ) mode and switch of DBB, OSM & INCREDIBLE SURROUND.

Adjust volume level to obtain 500mW load at L/R speaker output.

The 500mW level will be used as 0 dB reference

Inject sine wave 2V to AUX-IN socket withfrequency indicated in Table 5 (input level 600mV for /37,2V for /55 ).

FREQ

60 Hz

1 kHz

10 kHz

Class No

Max OFF Max ON

00 dB + 19 .0 dB

0 + 7.0 dB

- 0.5 dB + 10.0 dB

GENERAL PART 1 - AUDIO SIGNAL SPECICFICATION ( 2 )

NX5 NX7 ALL

NAME : MZ.FENG 10

KT

CHECK DATE :

Ver Issued Date

2

16-4-2013

3

A410 SH 190 - 6

1-8

TECHNIAL DESCRIPTION

AUX modle

GENERAL PART

Description Specification

Output power = , 1 Khz )

Channel Unbalance < = +/- 3 dB

THD + Noise ( 0dB, 1Khz ) <=2%

Channel Crosstalk ( ( 0dB, 1 KHz ) >= 40dB

( 0 dB, 10 KHz )

Signal to Noise Ratio ( 0dB,1kHz ) ( A - weighted ) >= 60dB( A - weighted )

Frequency Response ( +/- 3dB ), reference 1kHz

Microphone

Description Specification

Output power = , 1 Khz 2mV input) 1W± 1 dB

THD + Noise ( 0dB, 1Khz ) <=5%

Signal to Noise Ratio ( 0dB,1kHz ) ( A - weighted ) >= 45dB( A - weighted )

Frequency Response ( +/- 3dB ), reference 1kHz 100Hz - 16kHz

125W± 1 Db(NX5) 250W± 1 Db(NX7)

>= 40dB

60Hz - 16kHz

Remarks :

Class No

NAME : MZ.FENG

NX5 NX7 ALL

CHECK

DATE :

USB SPECICFICATION

10 10 SH 190 -9

Ver

1

2

3

Issued Date

16-4-2013

A4

1-9

TECHNIAL DESCRIPTION

SOFTWARE IMPLEMENTED CLOCK / TIMER FUNCTION WITHOUT 32.768KHZ QUARTZ OSCILLATOR.

GENERAL PART

Timer Setting : Clock and Timer

Timer Wakeup Mode

Remarks Time Setting : 12hr for /37 version, 24hrs for other version.

Volume at Wakeup : Last Setting

1RRI7LPHU6HWWLQJV : 1
&ORFN$FFXUDF\ : Nom : 1 sec/day Limit : 2 sec/day

,1',&$7256
'LVSOD\7\SH

Remark

: CD USB or Tuner

/&'

CLOCK / TIMMER SPECICFICATION

Class No

NX5 NX7 ALL

NAME : MZ.FENG 10

KT CHECK

DATE :

Ver Issued Date

1

2

3

10 SH 190 - 7 A4

16-4-2013