<Amplifier section>
CX-NAJ310:
Power output60 W + 60 W (50 Hz - 20 kHz,
Total harmonic distortion0.08 % (30 W, 1 kHz, 6 ohms, DIN
CX-NSZ310:
Power outputRated : 62 W + 62 W
Total harmonic distortion0.08 % (40 W, 1 kHz, 6 ohms, DIN
CX-NSZ510:
Power outputRated : 85 W + 85 W
Total harmonic distortion0.08 % (40 W, 1 kHz, 6 ohms, DIN
InputsVIDEO / AUX : 500 mV
OutputsSPEAKERS : 6 ohms or more
<Cassette deck section>
Track format4 tracks, 2 channels stereo
Frequency response50 Hz - 15 kHz
Recording systemAC bias
HeadsDeck 1 : Playback head x 1
<Compact disc player section>
LaserSemiconductor laser (λ = 780 nm)
D-A converter1 bit dual
Signal-to-noise ratio85 dB (1 kHz, 0 dB)
Harmonic distortion0.05 % (1 kHz, 0 dB)
<General>
CX-NAJ310
Power requirements120 V AC, 60 Hz
Power consumption70 W
Power consumptionWith ECO mode on : 0.6 W
in standby modeWith ECO mode off : 20 W
Dimensions of main unit260 x 324 x 339 mm
(W x H x D) (10
Weight6.3 kg (13 lbs 14 oz)
531 kHz to 1602 kHz (9 kHz step)
T.H.D. less than 1 %, 6 ohms)
75 W + 75 W (1 kHz, T.H.D. less
than 10 %, 6 ohms)
AUDIO)
(6 ohms, T.H.D. 1 %,1 kHz)
Reference : 80 W + 80 W
(6 ohms, T.H.D. 10 %, 1 kHz)
CX-NSZ310
Power requirements120 V/220 - 230 V/240 V AC,
(Switchable), 50 Hz/60 Hz
Power consumption90 W
Power consumptionWith ECO mode on : 0.6 W
in standby modeWith ECO mode off : 19 W
Dimensions of main unit260 x 324 x 339 mm
(W x H x D)
Weight6.8 kg
CX-NSZ510
Power requirements120 V/220 - 230 V/240 V AC,
(Switchable), 50 Hz/60 Hz
Power consumption105 W
Power consumptionWith ECO mode on : 0.6 W
in standby modeWith ECO mode off : 20 W
Dimensions of main unit 260 x 324 x 339 mm
(W x H x D)
Weight7.2 kg
<Speaker system SX-NAJ312 (for NSX-AJ310)>
Speaker system3 way, bass reflex (magnetic shielded)
Speaker unitsWoofer : 140 mm (55/8 in.) cone
Tweeter : 60 mm (23/8 in.) cone
Super tweeter : 20 mm (13/16 in.) ceramic
Impedance6 ohms
Dimensions (W x H x D)220 x 324 x 225 mm
(83/4 x 127/8 x 87/8 in.)
Weight4.3 kg (9 lbs 8 oz)
<Speaker system SX-NSZ312 (for NSX-SZ310)>
Speaker system3 way, bass reflex (magnetic shielded)
Speaker unitsWoofer : 140 mm cone
Tweeter : 60 mm cone
Super tweeter : 20 mm ceramic
Impedance6 ohms
Dimensions (W x H x D)220 x 324 x 225 mm
Weight4.3 kg
<Speaker system SX-NSZ702 (for NSX-SZ510)>
Speaker system2 way, bass reflex (magnetic shielded)
Speaker unitsWoofer : 160 mm cone
Tweeter : 60 mm cone
Impedance6 ohms
Dimensions (W x H x D)230 x 324 x 223 mm
Weight4.6 kg
• Design and specifications are subject to change without notice.
• The word "BBE"and the "BBE symbol" are trademarks of BBE
<Amplifier section>
Power outputRated : 32 W + 32 W (6 ohms, T.H.D.
1 %, 1 kHz / DIN 45500)
Reference : 40 W + 40 W (6 ohms,
T.H.D. 10 %, 1 kHz / DIN 45324)
EZ only : DIN MUSIC POWER :
120 W + 120 W
Total harmonic distortion0.08 % (20 W, 1 kHz, 6 ohms, DIN
AUDIO)
InputsVIDEO / AUX : 500 mV
OutputsSPEAKERS : 6 ohms or more
PHONES : 32 ohms or more
<Cassette deck section>
Track format4 tracks, 2 channels stereo
Frequency response50 Hz - 15 kHz
Recording systemAC bias
HeadsDeck 1 : Playback head x 1
Deck 2 : Recording / Playback x 1,
erase head x 1
<General>
Power requirements230 V AC, 50 Hz
Power consumption75 W
Power consumptionWith ECO mode on : 0.6 W
in standby modeWith ECO mode off : 17 W
Dimensions of main unit260 x 324 x 339 mm
(W x H x D)
Weight5.8 kg
<Speaker system SX-NSZ312>
Speaker systm3 way, bass reflex (magnetic shielded)
Speaker unitesWoofer : 140 mm cone
Tweeter : 60 mm cone
Super tweeter : 20 mm ceramic
Impedance6 ohms
Dimensions (W x H x D)220 x 324 x 225 mm
Weight4.3 kg
• Design and specifications are subject to change without notice.
• The word "BBE"and the "BBE symbol" are trademarks of BBE
Sound, Inc.
Under license from BBE Sound,Inc.
<Compact disc player section>
LaserSemiconductor laser (λ = 780 nm)
D-A converter1 bit dual
Signal-to-noise ratio85 dB (1 kHz, 0 dB)
Harmonic distortion0.05 % (1 kHz, 0 dB)
– 3 –
PROTECTION OF EYES FROM LASER BEAM DURING SERVICING
This set employs laser. Therefore, be sure to follow carefully
the instructions below when servicing.
WARNING!!
WHEN SERVICING, DO NOT APPROACH THE LASER
EXIT WITH THE EYE TOO CLOSELY. IN CASE IT IS
NECESSARY TO CONFIRM LASER BEAM EMISSION.
BE SURE TO OBSERVE FROM A DISTANCE OF MORE
THAN 30cm FROM THE SURFACE OF THE OBJECTIVE LENS ON THE OPTICAL PICK-UP BLOCK.
s Caution: Invisible laser radiation when
open and interlocks defeated avoid
exposure to beam.
s Advarsel: Usynlig laserståling ved åbning,
når sikkerhedsafbrydere er ude af funktion.
Undgå udsættelse for stråling.
VAROITUS!
Laiteen Käyttäminen muulla kuin tässä käyttöohjeessa
mainitulla tavalla saataa altistaa käyt-täjän
turvallisuusluokan 1 ylittävälle näkymättömälle
lasersäteilylle.
VARNING!
Om apparaten används på annat sätt än vad som
specificeras i denna bruksanvising, kan användaren
utsättas för osynling laserstrålning, som överskrider
gränsen för laserklass 1.
CAUTION
Use of controls or adjustments or performance of procedures other than those specified herin may result in
hazardous radiation exposure.
ATTENTION
L’utillisation de commandes, réglages ou procédures
autres que ceux spécifiés peut entraîner une dangereuse
exposition aux radiations.
ADVARSEL
Usynlig laserståling ved åbning, når sikkerhedsafbrydereer
ude af funktion. Undgå udsættelse for stråling.
This Compact Disc player is classified as a CLASS 1
LASER product.
The CLASS 1 LASER PRODUCT label is located on the
rear exterior.
CLASS 1LASER PRODUCT
KLASSE 1LASER PRODUKT
LUOKAN 1LASER LAITE
KLASS 1LASER APPARAT
Precaution to replace Optical block
(KSS-213F)
Body or clothes electrostatic potential could
ruin laser diode in the optical block. Be sure
ground body and workbench, and use care the
clothes do not touch the diode.
1) After the connection, remove solder shown in
right figure.
PICK-UP Assy PWB
Solder
– 4 –
NOTE ON BEFORE STARTING REPAIR
1. Forced discharge of electrolytic capacitor of power supply block
When repair is going to be attempted in the set that uses relay circuit in the power supply block, electric potential is kept charged across
the electrolytic capacitors (C101, 102) even though AC power cord is removed. If repair is attempted in this condition, secondary defect
can occur.
In order to prevent the secondary trouble, perform the following measures before starting repair work.
Discharge procedure
11
1 Remove the AC power cord.
11
22
2 Connect a discharging resistor at an end of lead wire that
22
has clips at both ends. Connect the other end of the lead
wire to metal chassis.
33
3 Contact the other end of the discharging resistor to the
33
positive (+) side (+VH) of C101. (For two seconds)
44
4 Contact the same end of the discharging resistor as step
44
33
3 to the negative (-) side (-VH) of C102 in the same way.
33
(For two seconds)
55
5 Check that voltage across C101 and C102 has decreased
55
to 1 V or less using a multimeter or an oscilloscope.
Select a discharging resistor referring to the following table.
Charging voltage (V)Discharging
(C101, 102)resistor (Ω)
25-48100387-A00-247-090
49-140220587-A00-232-090
Note: The reference numbers (C101, C102) of the electrolytic capacitors can change depending on the models. Be sure to check the
reference numbers of the charging capacitors on schematic diagram before starting the discharging work.
Rated power (W)Parts number
MAIN C.B
D101
3
C101C102
22
Fig-1
4
2. Check items before exchanging the MICROCOMPUTER
Be sure to check the following items before exchanging the MICROCOMPUTER. Exchange the MICROCOMPUTER after confirming
that the MICROCOMPUTER is surely defective.
2-1. Regarding the HOLD terminal of the MICROCOMPUTER
When the HOLD terminal (INPUT) of the MICROCOMPUTER is “H”, the MICROCOMPUTER is judged to be operating correctly.
When this terminal is “L”, the main power cannot be turned on. Therefore, be sure to check the terminal voltage of the HOLD
terminal before exchange.
When the MICROCOMPUTER is not defective, the HOLD terminal can also go “L” when the POWER AMPLIFIER has any
abnormalities that triggers the abnormality detection circuit on the MAIN C. B. that sets the HOLD terminal to “L”.
• Good or no good judgement of the MICROCOMPUTER
11
1 Turn on the AC main power.
11
22
2 Confirm that the main power is turned on and the HOLD terminal of the MICROCOMPUTER keeps the “H” level or not.
22
33
3 When the HOLD terminal is “L” level, the abnormality detection circuit is judged to be working correctly and the
33
MICROCOMPUTER is judged to be good.
– 5 –
In such a case, check also if the POWER AMPLIFIER circuit or power supply circuit has any abnormalities or not.
2-2. Regarding reset
There are cases that the machine does not work correctly because the MICROCOMPUTER is not reset even though the AC power
cord is re-inserted, or the software reset (pressing the STOP key + POWER key) is performed.
When the above described phenomenon occurs, it can lead to wrong judgement as if the MICROCOMPUTER is defective and to
exchange the MICROCOMPUTER. In such a case, perform the forced-reset by the following procedure and check good or no
good of the MICROCOMPUTER.
11
1 Remove the AC power cord.
11
FRONT C.B
18
MICROCOMPUTER
FRONT C.B
22
2 Short both ends of the electrolytic capacitor C113 that is connected to VDD of the MICROCOMPUTER with tweezers.
22
33
3 Connect the AC power cord again. If the MICROCOMPUTER returns to the normal operation, the MICROCOMPUTER is
33
good.
Note: The reference number or MICROCOMPUTER pin number of transistor (Q110) and electrolytic capacitor (C113) can change depending
on the models. Be sure to check the reference numbers on schematic diagram before starting the discharging work.
15
C113
Short with tweezers.
Fig-2-2
C113
%
*
VSS
VDD
MICROCOMPUTER
2-3. Confirmation of soldering state of MICROCOMPUTER
Check the soldering state of the MICROCOMPUTER in addition to the above described procedures. Be sure to exchange the
MICROCOMPUTER after surely confirming that the trouble is not caused by poor soldering but the MICROCOMPUTER itself.
C405 87-012-286-080 CAP, U 0.01-25
C406 87-012-286-080 CAP, U 0.01-25
C407 87-012-286-080 CAP, U 0.01-25
C408 87-012-286-080 CAP, U 0.01-25
C409 87-012-278-080 C-CAP,U 2200P-50 B
C782 87-012-286-080 CAP, U 0.01-25
C783 87-012-286-080 CAP, U 0.01-25
C784 87-012-286-080 CAP, U 0.01-25
C785 87-012-286-080 CAP, U 0.01-25
C786 87-012-286-080 CAP, U 0.01-25
C907 87-012-286-080 CAP, U 0.01-25<LH,5LH,U>
C908 87-A10-915-080 C-CAP,U 1000P-25<LH,5LH,U>
C909 87-012-286-080 CAP, U 0.01-25<LH,5LH,U>
C910 87-012-174-080 CAP CHIP U 12P-50<LH,5LH,U>
C911 87-012-170-080 C-CAP,U 8P-50<LH,5LH,U>
C912 87-012-195-080 C-CAP,U 100P-50<LH,5LH,U>
C913 87-012-286-080 CAP, U 0.01-25<LH,5LH,U>
C914 87-012-166-080 C-CAP,U 4P-50<LH,5LH,U>
C915 87-012-174-080 CAP CHIP CERA SS 12P<LH,5LH,U>
C916 87-012-180-080 C-CAP,U 22P-50<LH,5LH,U>
DESCRIPTIONREF. NO.KANRI
– 8 –
C917 87-012-186-080 C-CAP,U 39P-50<LH,5LH,U>
NO.
C918 87-A10-039-080 C-CAP,U 470P-50<LH,5LH,U>
C921 87-012-195-080 C-CAP,U 100P-50<LH,5LH,U>
C922 87-012-174-080 CAP CHIP CERA SS 12P<LH,5LH,U>
C940 87-012-286-080 CAP, U 0.01-25<K,EZ,5EZ>
C942 87-012-165-080 CAP 3P<K,EZ,5EZ>
C947 87-012-286-080 CAP, U 0.01-25<K,EZ,5EZ>
C948 87-A10-039-080 C-CAP,U 470P-50<K,EZ,5EZ>
C952 87-012-286-080 CAP, U 0.01-25<K,EZ,5EZ>
C957 87-012-174-080 CAP CHIP CERA SS 12P<K,EZ,5EZ>
Method : Apply a 1 kHz signal and REC mode. Then adjust
OSC attenuator so that the output level at TP8, TP9
becomes 0 dB (100 mV). Record and play back the
1 kHz signals and check that the output is
-1 dB ± 3.5 dB.
< FRONT SECTION >
7. µ-CON OSC Adjustment
Settings : • Test point :TP10 (K-SCAN)
TP11 (GND)
• Adjustment location : L951
Method : Insert AC plug while pressing POWER key and TUNER
BAND key. Connect a frequency counter across TP10
and TP11. Then adjust L951 so that the frequency at the
test point is 112.88 Hz ± 0.11 Hz.
5. REC/PB Frequency Response Adjustment (DECK 2)
Settings : • Test tape :TTA–602
• Test point :TP8(Lch), TP9(Rch)
• Input signal :1 kHz / 8 kHz (LINE IN)
(-20VU)
• Adjustment location : SFR451 (Lch)
SFR452 (Rch)
Method : Apply a 1 kHz signal and REC mode. Then adjust
OSC attenuator so that the output level at the TP8,
TP9 becomes 0 dB (10 mV). Record and play back the
1 kHz and 8 kHz signals and adjust SFRs so that the output
of the 8 kHz signals becomes 0 dB ± 1 dB with respect to
that of the 1 kHz signal.
– 34 –
CD TEST MODE
1. How to Start the CD Test Mode
While pressing the FUNCTION button, insert the AC plug to the power outlet.
When the test mode is started, the message [CD TEST] is displayed.
2. How to Exit the CD Test Mode
Press the POWER button or disconnect the AC plug.
* When any key other than PLAY is pressed during play mode, the machine exits the test mode.
3. Function Descriptions and Application of the CD Test Mode
No
1
2
3
4
5
6
Mode
Start mode
Search
mode
Play mode
Traverse
mode
Sled mode
Spindle
mode
Operation
STOP
button
Play button
PAUSE
button
FF button
RWD button
REC/REC
MUTE
button
Display
All indicators light
READING
Normal
Normal
CD TEST
CD TEST
All indicators light
Function
• All FL indicators light
• LD illuminates all the time
• Focus search continuous
operations *1
• Spindle motor continuous kick
• Normal playback
• If TOC cannot be read, focus
search is continued
• Tracking servo OFF/ON
• Each time PAUSE button is
pressed, the tracking servo
repeats turning OFF/ON
• Pickup moves to the inner
circumference *2
At the same time, lens kicks to
the inner circumference
• Pickup moves to the outer
circumference *2
At the same time, lens kicks to
the outer circumference
• The spindle motor rotates
forward (rough speed) by
pressing the button and
rotates backward by pressing
one more time and stops by
pressing again
Checking item
• FL check
• Microprocessor check
• APC circuit check
• Laser current measurement
• Focus search waveform check
• Focus error waveform check
(DRF in the search mode is
ignored)
• Each servo circuit is checked
• DRF check
• Tracking balance check
• Sled circuit check
• Tracking circuit check
• Mechanism operation check
• Pickup check
• Spindle circuit
• Spindle motor
*1: The driver IC heats up and the protection circuit starts working when the focus search is continued for 10 minutes or longer.
There can be a case that operations cannot be performed correctly.
In such a case, turn off the main power. After cooling down the machine, restart the machine.
*2: Be careful not to damage the gear because the sled motor rotates while the FF or RWD button is being pressed even if the
pick-up is located in the innermost track or the outermost track.
38 8B-NFY-018-010 KEY,RDS<315EZ>
A 87-067-703-010 TAPPING SCREW, BVT2+3-10
B 87-NF4-224-010 S-SCREW,IT3B+3-8 CU
C 87-078-200-010 S-SCREW,ITC+4-8 R
D 87-067-689-010 TAPPING SCREW, BVTT+3-8
E 87-723-096-410 QT2+3-10W/O SLOT BL
F 87-721-097-410 QT2+3-12 GLD
G 87-067-641-010 UTT2+3-8(W/O SLOT)BL
H 87-721-096-410 QT2+3-10 GLD
I 87-067-584-010 BVT2+3-6 W/O SLOT<EXCEPT 510LH>
NO.
COLOR NAME TABLE
Basic color symbolColorBasic color symbolColorBasic color symbolColor
BBlackCCreamDOrange
GGreenHGrayLBlue
LTTransparent BlueNGoldPPink
RRedSSilverSTTitan Silver
TBrownVVioletWWhite
WTTransparent WhiteYYellowYTTransparent Yellow
LMMetallic BlueLLLight BlueGTTransparent Green
LDDark BlueDTTransparent OrangeGMMetallic Green
A 84-ZM2-242-010 S-SCREW,AZ1-2-6.4
B 8Z-ZM2-220-110 V+2.6 ZZM-2
– 39 –
GENERAL SPEAKER DISASSEMBLY INSTRUCTIONS (FOR REFERENCE)
Type.1
Insert a flat-bladed screwdriver into the position indicated by the
arrows and remove the panel. Remove the screws of each speaker
unit and then remove the speaker units.
Type.2
Remove the grill frame and four pieces of rubber caps by pulling
out with a flat-bladed screwdriver. Remove the screws from hole
where installed rubber caps. Insert a flat-bladed screwdriver into
the position indicated by the arrows and remove the panel. Remove the screws of each speaker unit and then remove the speaker
units.
Type.4
TOOLS
1 Plastic head hammer
2 (() flat head screwdriver
3 Cut chisel
12 3
How to Remove the PANEL, FR
1.Insert the (() flat head screwdriver tip into the gap
between the PANEL, FR and the PANEL, SPKR. Tap the
head of the (() flat head screwdriver with the plastic
hammer head, and create the clearance as shown in Fig-1.
2.Insert the cut chisel in the clearance, and tap the head of
the cut chisel with plastic hammer as shown in Fig-2, to
remove the PANEL, FR.
Type.3
Insert a flat-bladed screwdriver into the position indicated by the
arrows and remove the panel. Turn the speaker unit to counterclockwise direction while inserting a flat-bladed screwdriver into
one of the hollows around speaker unit, and then remove the speaker
unit. After replacing the speaker unit, install it turning to clockwise
direction until "click" sound comes out.
3.Place the speaker horizontally. Tap head of the cut chisel
with plastic hammer as shown in Fig-3, and remove the
PANEL, FR completely.
Fig-1Fig-2
How to Attach the PANEL, FR
Attach the PANEL, FR to the PANEL, SPKR. Tap the four
corners of the PANEL, FR with the plastic hammer to fit the
PANEL, FR into the PANEL, SPKR completely.
– 40 –
Fig-3
SPEAKER PARTS LIST <SX-NAJ312 (YUS1N, YUSN) / SX-NSZ312 (YLSC, YSC)>