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
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*(1(5$/3$57%$&.3$11(/63(&,&),&$7,21
*(1(5$/3$57*(1(5$/63(&,&),&$7,21
*(1(5$/3$577(&+1,&$/63(&,&),&$7,21
*(1(5$/3$57$8',26,*1$/63(&,&),&$7,21
*(1(5$/3$57&/2&.7,0(563(&,&),&$7,21
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*(1(5$/3$57&'0363(&,&),&$7,21
*(1(5$/3$579(56,2129(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 RKPRXWSXW 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
1RRI7LPHU6HWWLQJV : 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
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