Philips NTRX500 User manual

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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 2013 Philips Consumer Electronics B.V. Eindhoven, The Netherlands
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 Philips.
Published by LX 1 Service Audio Printed in The Netherlands Subject to modification
Version 1.0
Mini Hi-Fi System NTRX500/
334 3140 038 60830
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1-2
Type /Versions:
Features
Board in used: Service policy
MAIN BOARD
VOLUME BOARD
* TIPS : C -- Component Lever Repair.
M -- Module Lever Repair
-- Used
Feature diffrence
RDS
VOLTAGE SELECTOR
ECO STANDBY - DARK
Type /Versions:
NTRX500
VERSION VARIATION
AMP BOARD
DJ EFFECT BOARD
JACK BOARD
NTRX500
/55
TUNER BOARD
MCU+CD BOARD
/10
Location of PC Boards
Technical Specification and Connection Facilities
C+M
C+M
C+M
C+M
C+M
C+M
/77 x/78
/77 x/78
SMPS BOARD M
C+M
C+M
C+M
C+M
C+M
C+M
C+M
C+M
C+M
C+M
C+M
M M
C+M C+M C+M
CD Board
MIC Board
Main Board
Volume Board
DJ EFFECT Board
Jack Board
Tuner Board
BT Board
SMPS Board
Amp Board
C+M
C+M
C+M
C+M
C+M
C+M
M
C+M
C+M
/10
/55
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No. Descrpitopn Page
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NX5 NX7 ALL SH190 Contact List

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60Hz, 50Hz
/ 55 /98/96
Yes
60/50Hz
/ 79
No
50Hz
220 Vac
f10 %
/ 61, /93
No
240 Vac
± 10 %
X
EN 55013 / EN 55020
Clock CD-mp3
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
Supply + Amplifier
IX
LIFETIME : 7 Years
Class Tuner USB Recorder
Version Safety EMC
X
811
III
3-7 9
SAFETY requirements
N/A
Page 10
II X X
POWER SUPPLY
EN 60065
/98 EN 60065 CISPR 13
/55 EN 60065 CISPR 13
/12 EN 60065
: + 5 Dregree till + 35 Degree
MODERATE climates : + N.A till N.A Degree
/05 EN 60065 EN 55013 / EN 55020
PERFORMANCE CLASSES
120 Vac (110V-10%,
120V ±10%)
MAINS ( A.C. )
RADIATION / IMMUNITY requirments ( EMC ) for 12 version only
127 / 240 Vac
± 15 %
CLIMATIC requirements
ALL climates
230 Vac
± 10 %
/ 12 /05
Frequency
Voltage Selection
CISPR 13
/37 UL 60065 FCC99
/79
Version
No
60Hz ±5%
No
50Hz
/ 37
<25W
POWER CONSUMER
/12 / 55/98/96 /79 /61 /93 / 37
<= 1W
<130W
<25W
( DEMO mode " OFF " ) , NOM. A, INPUT
Stadby : < 25W
Remarks
Quality : 0.8 % ( Major ) 2.0 % ( Mirror )
Reliability : 3.0 % ( C 42 )
ECO Power mode : <= 1W no <= 1W
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
2
Issued Date
1
A4SH 190 - 3
16-4-2013
Class No
NX5 NX7 ALL
DATE :
NAME : MZ.FENG
KT CHECK
10 10
3
Maximum :
Ver
GENERAL PART 1 - GENERAL SPECICFICATION
1-4
<110W
<130W@ 1/8 Prated , NOM. A, INPUT <130W <130W
<110W <110W <110W
< 25W
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:
:
:
:
:
1-5
DATE :
NAME : MZ.FENG
KT CHECK
10 10 SH 190 - 4 A4
Ver
3
16-4-2013
GENERAL PART 1 - TECHNAICAL SPECICFICATION
Issued Date
2
1
Class No
NX5 NX7 ALL
IS off and OSM unless specified otherwise
Measuremend output power only for AUX model and CD model of used audio analyzer equipment.
One channel signal input ( L or R ), two channel load ( < Low ch. L + High ch. L > or < Low ch. R + High ch. R > )
( *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
: 3 Ohms
Remarks
Rated Impedance
Power output ( RMS ) FOR NX7 ALL Low channel 250W per channel ( Lim '-1dB )˄CD USB AUX˅
High channel 250W per channel ( Lim '-1dB )˄CD USB AUX˅
OUTPUT POWER ( * 1 ) At THD = 10% (Measured with 20Hz-20KHz filter), both channels driven ( Low channel at 1KHz, High channel at 10k )
Power output ( RMS ) FOR NX5 ALL Low channel
High channel 125W per channel ( Lim '-1dB )˄CD USB AUX˅
Frequency Response
LOW Frepuency Frequency Response - 60Hz - ref. 1kHz ±3 dB
HI Frepuency Frequency Response -6KHz - ref. 10kHz ±3 dB
N.A
Microphone :
input leven Nor: 1.5mv Lim:0.8-2.5mv
5V RKPRXWSXW 0:
Nor: 2V Lim: 1.5V ~ 2.5V for /55
125W per channel ( Lim '-1dB )˄CD USB AUX˅
Booster Out
Frequency Response ( +/- 3dB ), reference 1kHz 60Hz - 16kHz
N.A
AUX Nor: 600mV Lim: 450mV ~ 550mV for /37 Digital Coaxial Out N.A
USB 0 dB track Headphone
Line Out ( Left / Right ) N.A
dB
INTERCONNECTS
Input Sensitity(±2 dB)rated ouput power at 1 kHz and 10kHz. Line Output Voltage ( *1 )
WOOX : N/A Signal / Noise ( weighted )
IS : YES Residual Noise ( Volume Minium )( A - weighted ) < 100
CD 0 dB track ( Audio Disc 1, Trk 35 ) Subwoofer Out N.A
VAC : N/A Channel Separation ( at 1 kHz ) ı45 dB
ı60
TECHNIAL DESCRIPTION
Total power 500W FOR NX5 1000W FOR NX7 ), FOUR INPUT SOURCE, ( Digital Sound Control ). IS ( Incredible Sound )
GENERAL PART
< 200 nW
FM 67.5KHz,AM 80% Modulation - 3dB
DSC : Rock, Pop, Jazz, Optimal Channel Differencer at -46dB
Tuner
nW
dB
MAX YES Hum ( Volume Minimun - 50mW )( A - weighted )
3
Standby Mode Indicator : LCD display Clock active
ECO Mode Indiicator : LCD turns off, ECO - Standby LED turn on
ELECTRICAL DATA
OUTPUT stage Protection : Yes Temperature : Yes. Shorcircuit : Yes
LoudSpeaker D.C. Protection : Yes.
INDICATORS
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1-6
3
Issued Date
A4
116-4-2013
DATE :
NAME : MZ.FENG DATE:25/08/07 10 10 SH 190 - 5
KT CHECK
Class No
NX5 NX7 ALL
Ver
2
GENERAL PART 1 - GENERAL SPECICFICATION
-0.5dB10 kHz -1.5 dB +-0.6dB +1dB
Tabel 1a ( Tolerance ± 3dB )
5.5 dB
+1 dB
60 Hz +3 dB +8dB + 14DŽ5dB
1 kHz 0 dB +1 dB 1 dB
10 kHz
Frequency JAZZ POP ROCK TECHNO
DSC Modes with DBB 1 ON
Tabel 1b ( Tolerance ± 3dB )
+0.3dB
DSC Modes with DBB Off
60 Hz -1.8 dB + 3 dB + 6dB +0.5dB
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:
SAMBA
TECHNO
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 .
-1.5 dB -0.6dB +1 dB -0.5 dB
+ 11.0 dB
Inject sine wave 2V to AUX-IN socket with frequencies indicated in Table 1.
TECHNO
Frequency JAZZ POP ROCK
1 dB
-3
+ 15.0 dB60 Hz +8dB
Frequency JAZZ POP ROCK
60 Hz
10kHz -1.5 dB
+0 dB
+14 dB
+ 14.0 dB
+1dB
POP
Frequency TECHNO
+2 dB
1 kHz
DSC Modes with DBB 3 ON
JAZZ
10 kHz -0.5 dB + 2dB +3dB + 1dB
1 kHz +0dB +1dB +1dB
SAMBA
1 kHz
ROCK
0 dB 0.5db
+1 dB
+1 dB +1 dB
- 0.5dB+ 1dB
+18dB
+5.5dB
0
-3
0.5dB
+ 17.0 dB + 20.0 dB
0
+11dB
0
0
1
Tabel 1b ( Tolerance ± 3dB )
-0.5
Tabel 1b ( Tolerance ± 3dB )
SAMBA
DSC Modes with DBB 2 ON
SAMBA
+ 18.0 dB
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
hdf lldbihihbiib dd
Table 3 ( Tolerence ± 3 dB )
LEFTRIGHTLEFTRIGHT
4 ) DSC Mode ( Jazz , Rock, Techno and Optimal )
Right channel reference to left channel.
LEFT RIGHT
OUTPUT LEVEL
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 ).
+2.0 dB -17.0 dB
AUDIO SIGNAL PROCESSING
MP3 - USB Mini Hi Fi System with Digital Tuner , 1CDCfor NX5 NX7 ALL
FREQ INPUT LEVEL
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 ).
1 kHz + 3.5 dB -0 dB
2V60 Hz - - 1.0 dB -
- + 3.0 dB -7.0 dB
2V - 0 -
10 kHz 2V - - 0.5 dB
Note : The above specs also apply to right channel.
IS OFF IS ON
Ver Issued Date
1
Class No
GENERAL PART 1 - AUDIO SIGNAL SPECICFICATION ( 2 )
10 kHz - 0.5 dB + 10.0 dB
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
00 dB + 19 .0 dB
1 kHz
Note : When these modes are activ DBB and DSC will not be displayed
DBB Level preset
DBB OFF
DBB 2
0 + 7.0 dB
Max OFF Max ON
60 Hz
5 ) MAX ( Maximum Sound )
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 ).
DSC MODE
Optimal
POP
Jazz
The VEC modes are software controlled by switching the combination between DBB and DSC modes
as show in Table 4.
Techno DBB 3
DBB 1
A410 SH 190 - 6
KT
16-4-2013
3
CHECK DATE :
NAME : MZ.FENG 10
2
1
NX5 NX7 ALL
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1-8
TECHNIAL DESCRIPTION
AUX modle
GENERAL PART
Output power = , 1 Khz ) 125W± 1 Db(NX5) 250W± 1 Db(NX7)
Description Specification
Channel Unbalance < = +/- 3 dB
THD + Noise ( 0dB, 1Khz ) <=2%
Frequency Response ( +/- 3dB ), reference 1kHz
Signal to Noise Ratio ( 0dB,1kHz ) ( A - weighted ) >= 60dB( A - weighted )
Channel Crosstalk ( ( 0dB, 1 KHz ) >= 40dB
( 0 dB, 10 KHz ) >= 40dB
Output power = , 1 Khz 2mV input) 1W± 1 dB
Description Specification
60Hz - 16kHz
Frequency Response ( +/- 3dB ), reference 1kHz 100Hz - 16kHz
Signal to Noise Ratio ( 0dB,1kHz ) ( A - weighted ) >= 45dB( A - weighted )
NX5 NX7 ALL
Ver
3
2
USB SPECICFICATION
Issued Date
1
Class No
CHECK
10 10 SH 190 -9
DATE :
Remarks :
Microphone
A4
16-4-2013
THD + Noise ( 0dB, 1Khz ) <=5%
NAME : MZ.FENG
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1-9
Timer Setting : Clock and Timer
TECHNIAL DESCRIPTION
SOFTWARE IMPLEMENTED CLOCK / TIMER FUNCTION WITHOUT 32.768KHZ QUARTZ OSCILLATOR.
GENERAL PART
,1',&$7256
Timer Wakeup Mode : CD USB or Tuner
Remarks Time Setting : 12hr for /37 version, 24hrs for other version.
Volume at Wakeup : Last Setting
1RRI7LPHU6HWWLQJV : 1
&ORFN$FFXUDF\ : Nom : 1 sec/day Limit : 2 sec/day
'LVSOD\7\SH /&'
116-4-2013
Remark
CLOCK / TIMMER SPECICFICATION
Class No
NX5 NX7 ALL
Ver Issued Date
2
3
10 SH 190 - 7 A4
DATE :
NAME : MZ.FENG 10
KT CHECK
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1-10
Channel Unbalance < = +/- 1 dB
GENERAL PART
Measurement are directly done at the connector on CDC board
Description Specification
Output Resistance < = 1.5 kOhm
TECHNIAL DESCRIPTION
USB
See also SH 190 USB Audio Module (300605)
Measurment are directly done at the coonector on the board
Output Voltage RL = 33 k ohm dB, 1 Khz NC
THD + Noise ( 0dB, 1Khz ) <=1.5%
Signal to Noise Ratio ( 0dB,1kHz ) ( A - weighted ) >= 60dB( A - weighted )
Channel Crosstalk (1k) >= 40dB
USB Measurement at Set Level
Electrical Parameters are to be measured at speaker teminals across 6 ohm load with 500mW output and DSC setting in Jazz Mode
Description Specification
( 0 dB, 10 KHz ) >= 40dB
Frequency Response ( +/- 3dB ), reference 1kHz 60Hz - 16kHz
1
Channel Crosstalk ( 0 dB, 1 KHz ) >= 40dB (with 1 KHz filter )
Signal to Noise Ratio ( 0 dB, 1 KHz ) >= 60dBA ( A - weighted )
Channel Unbalance ( 0 dB, 1 KHz ) < +/- 1.5dB
Frequency Response ( +/- 3dB ), reference 1kHz 60Hz - 5.8kHz
Frequency Response ( +/- 4dB ), reference 10kHz 6KHz - 16kHz
2
Remarks :
USB SPECICFICATION
16-4-2013
Class No
NX5 NX7 ALL
Ver Issued Date
A4
3
DATE :
NAME : MZ.FENG
CHECK
10 10 SH 190 -8
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1-11
AM (55/37) 530 - 1700 kHz QUARTZ PRECISION 10 kHz
AM (12) 531 - 1602 kHz QUARTZ PRECISION 9 kHz
FM( 55/37 ) 87.5 - 108.00 MHz QUARTZ PRECISION 100 kHz
FM( 12 ) 87.5 - 108.00 MHz 50KHZ
WAVE RANGE TOLERANCE TUNING GRID
TECHNIAL DESCRIPTION
GENERAL PART
Modulation Hum.
45 40 dB
Nom Limit
AERIAL
FM : PIGTAIL ANT WIRE 300 Ohm(for/37) 75ohm for 55/12
AM : FRAME ANT. 18.1 uH
INDICATORS
LCD
ELECTRICAL DATA
: 17 23.5 dBf
F.M. Nom Limit Unit A.M Unit
- 3 dB Limiting Point
AGC Figure of Merit
: 30 25 dB
Distortion ( RF 1mV, Frq Dev.75 kHz )
: 2 5 %
Amplification Reverse
: - 2 -4 dB
Amplification Reverse
: 0 -4 dB
dB
IF
: 450 ± 3 kHz 18
Crosstalk (RF1mV, Freq Dev.40kHz )
: 25
dBf
Distortion ( RF 50mV, M 80% )
: 3 5 %
Stereo - 46 dB Quieting
: 38 43
Modulation Hum.
35 30 dB
Wave Range Noise Limited Sensitivity 26 dB
Image Rejection
IF Rejection Large Signal
MW 610 kHz Nom.
3500
Lim.
4000
22db28db 1000mv/m
Selectivity
S3 / S9 / 300kHz
Uv/m 28db
uV/m 32 db
22db
500mv/m
32db 28db 1000mv/m
24db
18db
18db
uV/m
FM 98 MHz Nom.
18
MW 1400 kHz Nom.
1500
Lim.
4000 uV/m 28db 24db 500mv/m
25db
dBf 40db 65db 116 dBu
Auto Search sensitivity
45db
Lim.
22 dBf 30db 60db 108 dBu
MW 610 kHz Nom.
58
Lim.
± 10 db/m
db/m
db/m
Lim.
± 10 db/m
MW 1400 kHz Nom.
58
dBu
V
Lim.
± 10 dBu
V
2
1
FM 98 MHz Nom.
26
3
Ver Issued Date
16-4-2013
Remarks
TUNER SPECICFICATION
Class No
NX5 NX7 ALL
CHECK
A410
DATE :
NAME : MZ.FEN
G
KT
10 SH 190 - 9
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1-12
TECHNIAL DESCRIPTION
Bluetooth Function
GENERAL PART
Bluetooth Version : Ver2.1 + EDR
Receive A2DP: N/A
Receive HSP N/A Noise Reduction System : No
Transmit A2DP: N/A Remote Controlled : YES
Display : Yes
INDICATORS
Bluetooth Flashing : Yes
dB
ELECTRICAL DATA
Bluetooth at Module level: Mobile Phone lim Unit
S/N (Unweighted) ı 
Frequency Response 125-16khz f
Level Diff ? f
dB
S/N (A-weighted) ı  dBA
Distortion ˘
dB
Channel Separation ı  dB
10%THD OUTPUT POWER(EQ:FLAT) \ 250± 3dB W
λ
Bluetooth at Set Level Mobile Phone
Connected distance 8~10 meter
REMARKS
Bluetooth SPECICFICATION
Class No
NX5 NX7 ALL All Version
Ver Issued Date
1
3
16-4-2013
2
CHECK: DATE :
NAME : TAN DATE : SH 190 - 9
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1-13
TECHNIAL DESCRIPTION
CD + MP3 - Part Specifications (CD MECHAISM DA11VF OF SANYO ) 1DISC for NX5 NX7 ALL
Inpu
t
Outpu
t
Motor Logic control
BU9543
Act
i
ve components %8



%8



SA5888
Servo processor
Active components BU9543 BU9543 NA DA23SR
Signal processsing D/A converte
r
HF-preamplifie
r
Nom Lim
AUDIO part: Measurement with Audio Signals Disc TCD-781 on spkeakers or Headphone socket with nom.load
Unit
De-emphasis 15us / 50us Switchable via Subcode information
Frequency accuracy N/A ± 0.5 %
Description Extern
dB
Frequency Response ( 60Hz - 16 kHz ) 0 ± 3 dB
Channel Unbalance 0.5 1.5
dBA
Signal to Noise Ration ( A - weighted ) 65 60 dBA
Signal to Noise Ration ( Unweighted ) 60 55
dB
Crosstalk ( 10KHz ) ( A - weighted ) 50 40 dB
Crosstalk ( 1kHz ) ( A - weighted ) 55 40
Mv
THD (1KHz -6dB) 0.2 <1.5 %
Hum & Noise ( *1 ) 12
%THD (10KHz -20dB) <1 <1.5
REMARKS:
1. Amplification reserve for CD = +2dB ('±2dB),Ref.Level for CD is a 0dB track instead of a .-6dB track.
Playability :(acc.To AR 30-05-239 )
Limit Typical Test disc
Wedge 600um 900um TNO 7, 9 of SBC 444A(7104 099 24990)
Eccentric 150um 200um TNO 1, 24 of 200um disc (7104 099 24960)
Fingerprint No audible defect TNO 11 of Sub chassis 8A
Black dot 500um 800um TNO 13 of SBC 444A (7104 099 24990)
Skew 0.6mm No audible defect TNO 1,6 of 0.6mm skew (7104 099 28260)
Playback position Solid, Normal position (Set is located on a flat surface, floor)
1. Playback of above mentioned tracks possible wihout track loss or audible defects.
2. Double black dot, max. diameter, thin/disk is according to PQR or AR 30-05-239
Bad HF track No audible defect TNO 8 of Sub chassis 8A
3. This unit can playback (only) CD-R or CD-RW discs. For performance specification, Please refer to module.
specification of CD99 (3103 308 52190)
CD / MP3 SPECICFICATION
Issued Date
116-4-2013
Class No
NX5 NX7 ALL
Ver
3
A4
2
DATE :
NAME : MZ.FENG
KT CHECK
10 10 SH 190 -10
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1-14
SAFETY EMC MAINS
VOLTAGE SOC.AERIAL SOCKET AERIAL SUPPLIED
VERSION OVERVIEW (NX5 NX7) ALL
Ver DEST
APPROBATION TUNER AC SUPPLY MIC
MIX
MAT
RIX
SURR
. SPK.
Wave RANGE GRID CORD
/55 /98 OVS
EN60065
CLASS II
SISR
TAIWAN
CISPR 13
FM 87.5-108MHz MW
531-1602kHz
or 530-1710kHz
50kHz
9kHz
10kHz
75 Ohm Coaxial
JST XH 2P Side
75 Ohm Pigtail
Loop Sagami 18.1uH
110-127V
Switched
220 - 240V
50/60Hz
No
/05 / 12 EUROPE
EN60065
SEMKO
DEMKO
NEMKO SEV
BS415-UK
EN55013
EN55020
FM 87.5-108MHz MW
531-1602kHz
50kHz
9kHz IEC No
IEC IEC No
75 Ohm Coaxial
JST XH 2P Side
75 Ohm Pigtail
Loop Sagami 18.1uH
230V
50Hz IEC No
/79 AUST / NZ EN60065
CLASS II
FM 87.5-108MHz MW
531-1602kHz
50kHz
9kHz
75 Ohm Coaxial
JST XH 2P Side
75 Ohm Pigtail
Loop Sagami 18.1uH
240V
50Hz No
/37 USA
Canada UL 6500 FCC 99 FM 87.5-108MHz MW 530-1710kHz
100kHz
10kHz UL No
IEC IEC No
JALCO Click Fit
JST XH 2P Side
300 Ohm Dipole
Loop Sagami 18.1uH
120V
60Hz UL No
/35 China EN60065
CLASS II
FM 87.5-108MHz MW
531-1602kHz
50kHz
9kHz
75 Ohm Coaxial
JST XH 2P Side
75 Ohm Pigtail
Loop Sagami 18.1uH
220V
60Hz No
/ 33 Korea EN60065
CLASS II
FM 87.5-108MHz MW
531-1602kHz
50kHz
9kHz IEC No
IEC IEC No
75 Ohm Coaxial
JST XH 2P Side
75 Ohm Pigtail
Loop Sagami 18.1uH
220V
60Hz IEC No
Issued Date
16-4-2013
VERSION OVERVIEW
Class No
NX5 NX7 ALL
Ver
NAME : MZ.FENG
2
1
3
10 SH 190 - 1110 A4
KT CHECK DATE :
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2.Safety instruction
1. General safety
Safety regulations require that during a repair:
. Connect the unit to the mains via an isolation transformer.
. Replace safety components indicated by the symbol ,
only by components identical to the original ones. Any
other component substitution (other than original type)
may increase risk of fire or electrical shock hazard.
Safety regulations require that after a repair, you must
return the unit in its original condition. Pay, in particular,
attention to the following points:
. Route the wires/cables correctly, and fix them with the
mounted cable clamps.
. Check the insulation of the mains lead for external
damage.
. Check the electrical DC resistance between the mains
plug and the secondary side:
1) Unplug the mains cord, and connect a wire between
the two pins of the mains plug.
2) Set the mains switch the “on” position (keep the
mains cord unplug).
3) Measure the resistance value between the mains
plug and the front panel, controls, and chassis
bottom.
4) Repair or correct unit when the resistance
measurement is less than 1M
¡
.
5) Verify this, before you return the unit to the
customer/user (ref. UL-standard no. 1492).
6) Switch the unit “off”, and remove the wire between
the two pins of the mains plug.
2.Laser safety
This unit employs a laser. Only qualified service personnel
may remove the cover, or attempt to service this device
(due to possible eye injury).
Laser device unit
Type :SemiconductorlaserGaAlAs
Wavelength : 650nm (DVD)
: 780nm (VCD/CD)
Output power : 7mW (DVD)
:10mW(DVD/CD)
Beam divergence: 60 degree
Note: Use of controls or adjustments or performance of
procedure other than those specified herein, may result in
hazardous radiation exposure. Avoid direct exposure to
beam.
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3-1 3-1
BLOCK DIAGRAM
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WIRING DIAGRAM
4-1 4-1
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1) Remove 46 screws A/B/C/D/E/F/G as indicated to loosen the top/front/bottom plate.
Dismantling of the CD part and PCB Board
OUTER
1) Remove 8 screws H&I as indicated to loosen the CD part.
2) Remove 4 screws J as indicated to loosen the CD Board.
4) Remove 13 screws K and 8 screws L as indicated to loosen the Main Board.
5) Remove 4 screws M as indicated to loosen the Smps power Board.
6) Remove 6 screws N as indicated to loosen the Amp Board.
A
C D E
B
FG
H
MN
J
K
L
I
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CIRCUIT DIAGRAM - MAIN BOARD AND JACK BOARD
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6-2 6-2
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